<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Predefined Constants</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="image.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="image.examples.html">Examples</a></div> <div class="up"><a href="book.image.html">GD</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="image.constants" class="appendix"> <h1>Predefined Constants</h1> <p class="simpara"> The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime. </p> <dl> <dt id="constant.gd-version"> <span class="term"> <strong><code>GD_VERSION</code></strong> (<span class="type"><a href="language.types.string.html" class="type string">string</a></span>) </span> <dd> <span class="simpara"> The GD version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt id="constant.gd-major-version"> <span class="term"> <strong><code>GD_MAJOR_VERSION</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> The GD major version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt id="constant.gd-minor-version"> <span class="term"> <strong><code>GD_MINOR_VERSION</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> The GD minor version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt id="constant.gd-release-version"> <span class="term"> <strong><code>GD_RELEASE_VERSION</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> The GD release version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt id="constant.gd-extra-version"> <span class="term"> <strong><code>GD_EXTRA_VERSION</code></strong> (<span class="type"><a href="language.types.string.html" class="type string">string</a></span>) </span> <dd> <span class="simpara"> The GD "extra" version (beta/rc..) PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt id="constant.gd-bundled"> <span class="term"> <strong><code>GD_BUNDLED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> When the bundled version of GD is used this is 1 otherwise its set to 0. </span> </dd> </dt> <dt id="constant.img-gif"> <span class="term"> <strong><code>IMG_GIF</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> </dd> </dt> <dt id="constant.img-jpg"> <span class="term"> <strong><code>IMG_JPG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> </dd> </dt> <dt id="constant.img-jpeg"> <span class="term"> <strong><code>IMG_JPEG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> This constant has the same value as <strong><code>IMG_JPG</code></strong> </p> </p></blockquote> </dd> </dt> <dt id="constant.img-png"> <span class="term"> <strong><code>IMG_PNG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> </dd> </dt> <dt id="constant.img-wbmp"> <span class="term"> <strong><code>IMG_WBMP</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> </dd> </dt> <dt id="constant.img-xpm"> <span class="term"> <strong><code>IMG_XPM</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Used as a return value by <span class="function"><a href="function.imagetypes.html" class="function">imagetypes()</a></span> </span> </dd> </dt> <dt id="constant.img-color-tiled"> <span class="term"> <strong><code>IMG_COLOR_TILED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <span class="function"><a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a></span> or <span class="function"><a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a></span> </span> </dd> </dt> <dt id="constant.img-color-styled"> <span class="term"> <strong><code>IMG_COLOR_STYLED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <span class="function"><a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a></span> or <span class="function"><a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a></span> </span> </dd> </dt> <dt id="constant.img-color-brushed"> <span class="term"> <strong><code>IMG_COLOR_BRUSHED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <span class="function"><a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a></span> or <span class="function"><a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a></span> </span> </dd> </dt> <dt id="constant.img-color-styledbrushed"> <span class="term"> <strong><code>IMG_COLOR_STYLEDBRUSHED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <span class="function"><a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a></span> or <span class="function"><a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a></span> </span> </dd> </dt> <dt id="constant.img-color-transparent"> <span class="term"> <strong><code>IMG_COLOR_TRANSPARENT</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <span class="function"><a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a></span> or <span class="function"><a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a></span> </span> </dd> </dt> <dt id="constant.img-arc-rounded"> <span class="term"> <strong><code>IMG_ARC_ROUNDED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A style constant used by the <span class="function"><a href="function.imagefilledarc.html" class="function">imagefilledarc()</a></span> function. </span> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> This constant has the same value as <strong><code>IMG_ARC_PIE</code></strong> </p> </p></blockquote> </dd> </dt> <dt id="constant.img-arc-pie"> <span class="term"> <strong><code>IMG_ARC_PIE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A style constant used by the <span class="function"><a href="function.imagefilledarc.html" class="function">imagefilledarc()</a></span> function. </span> </dd> </dt> <dt id="constant.img-arc-chord"> <span class="term"> <strong><code>IMG_ARC_CHORD</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A style constant used by the <span class="function"><a href="function.imagefilledarc.html" class="function">imagefilledarc()</a></span> function. </span> </dd> </dt> <dt id="constant.img-arc-nofill"> <span class="term"> <strong><code>IMG_ARC_NOFILL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A style constant used by the <span class="function"><a href="function.imagefilledarc.html" class="function">imagefilledarc()</a></span> function. </span> </dd> </dt> <dt id="constant.img-arc-edged"> <span class="term"> <strong><code>IMG_ARC_EDGED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A style constant used by the <span class="function"><a href="function.imagefilledarc.html" class="function">imagefilledarc()</a></span> function. </span> </dd> </dt> <dt id="constant.img-gd2-raw"> <span class="term"> <strong><code>IMG_GD2_RAW</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A type constant used by the <span class="function"><a href="function.imagegd2.html" class="function">imagegd2()</a></span> function. </span> </dd> </dt> <dt id="constant.img-gd2-compressed"> <span class="term"> <strong><code>IMG_GD2_COMPRESSED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A type constant used by the <span class="function"><a href="function.imagegd2.html" class="function">imagegd2()</a></span> function. </span> </dd> </dt> <dt id="constant.img-effect-replace"> <span class="term"> <strong><code>IMG_EFFECT_REPLACE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <span class="function"><a href="function.imagelayereffect.html" class="function">imagelayereffect()</a></span> function. </span> </dd> </dt> <dt id="constant.img-effect-alphablend"> <span class="term"> <strong><code>IMG_EFFECT_ALPHABLEND</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <span class="function"><a href="function.imagelayereffect.html" class="function">imagelayereffect()</a></span> function. </span> </dd> </dt> <dt id="constant.img-effect-normal"> <span class="term"> <strong><code>IMG_EFFECT_NORMAL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <span class="function"><a href="function.imagelayereffect.html" class="function">imagelayereffect()</a></span> function. </span> </dd> </dt> <dt id="constant.img-effect-overlay"> <span class="term"> <strong><code>IMG_EFFECT_OVERLAY</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <span class="function"><a href="function.imagelayereffect.html" class="function">imagelayereffect()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-negate"> <span class="term"> <strong><code>IMG_FILTER_NEGATE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-grayscale"> <span class="term"> <strong><code>IMG_FILTER_GRAYSCALE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-brightness"> <span class="term"> <strong><code>IMG_FILTER_BRIGHTNESS</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-contrast"> <span class="term"> <strong><code>IMG_FILTER_CONTRAST</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-colorize"> <span class="term"> <strong><code>IMG_FILTER_COLORIZE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-edgedetect"> <span class="term"> <strong><code>IMG_FILTER_EDGEDETECT</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-gaussian-blur"> <span class="term"> <strong><code>IMG_FILTER_GAUSSIAN_BLUR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-selective-blur"> <span class="term"> <strong><code>IMG_FILTER_SELECTIVE_BLUR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-emboss"> <span class="term"> <strong><code>IMG_FILTER_EMBOSS</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-mean-removal"> <span class="term"> <strong><code>IMG_FILTER_MEAN_REMOVAL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-smooth"> <span class="term"> <strong><code>IMG_FILTER_SMOOTH</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. </span> </dd> </dt> <dt id="constant.img-filter-pixelate"> <span class="term"> <strong><code>IMG_FILTER_PIXELATE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Special GD filter used by the <span class="function"><a href="function.imagefilter.html" class="function">imagefilter()</a></span> function. (Available as of PHP 5.3.0) </span> </dd> </dt> <dt id="constant.imagetype-gif"> <span class="term"> <strong><code>IMAGETYPE_GIF</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jpeg"> <span class="term"> <strong><code>IMAGETYPE_JPEG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jpeg2000"> <span class="term"> <strong><code>IMAGETYPE_JPEG2000</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-png"> <span class="term"> <strong><code>IMAGETYPE_PNG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-swf"> <span class="term"> <strong><code>IMAGETYPE_SWF</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-psd"> <span class="term"> <strong><code>IMAGETYPE_PSD</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-bmp"> <span class="term"> <strong><code>IMAGETYPE_BMP</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-wbmp"> <span class="term"> <strong><code>IMAGETYPE_WBMP</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-xbm"> <span class="term"> <strong><code>IMAGETYPE_XBM</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-tiff-ii"> <span class="term"> <strong><code>IMAGETYPE_TIFF_II</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-tiff-mm"> <span class="term"> <strong><code>IMAGETYPE_TIFF_MM</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-iff"> <span class="term"> <strong><code>IMAGETYPE_IFF</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jb2"> <span class="term"> <strong><code>IMAGETYPE_JB2</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jpc"> <span class="term"> <strong><code>IMAGETYPE_JPC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jp2"> <span class="term"> <strong><code>IMAGETYPE_JP2</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-jpx"> <span class="term"> <strong><code>IMAGETYPE_JPX</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-swc"> <span class="term"> <strong><code>IMAGETYPE_SWC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. </span> </dd> </dt> <dt id="constant.imagetype-ico"> <span class="term"> <strong><code>IMAGETYPE_ICO</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> Image type constant used by the <span class="function"><a href="function.image-type-to-mime-type.html" class="function">image_type_to_mime_type()</a></span> and <span class="function"><a href="function.image-type-to-extension.html" class="function">image_type_to_extension()</a></span> functions. (Available as of PHP 5.3.0) </span> </dd> </dt> <dt id="constant.png-no-filter"> <span class="term"> <strong><code>PNG_NO_FILTER</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-filter-none"> <span class="term"> <strong><code>PNG_FILTER_NONE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-filter-sub"> <span class="term"> <strong><code>PNG_FILTER_SUB</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-filter-up"> <span class="term"> <strong><code>PNG_FILTER_UP</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-filter-avg"> <span class="term"> <strong><code>PNG_FILTER_AVG</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-filter-paeth"> <span class="term"> <strong><code>PNG_FILTER_PAETH</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.png-all-filters"> <span class="term"> <strong><code>PNG_ALL_FILTERS</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </span> <dd> <span class="simpara"> A special PNG filter, used by the <span class="function"><a href="function.imagepng.html" class="function">imagepng()</a></span> function. </span> </dd> </dt> <dt id="constant.img-flip-vertical"> <span class="term"> <strong><code>IMG_FLIP_VERTICAL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imageflip.html" class="function">imageflip()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-flip-horizontal"> <span class="term"> <strong><code>IMG_FLIP_HORIZONTAL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imageflip.html" class="function">imageflip()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-flip-both"> <span class="term"> <strong><code>IMG_FLIP_BOTH</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imageflip.html" class="function">imageflip()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bell"> <span class="term"> <strong><code>IMG_BELL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bessel"> <span class="term"> <strong><code>IMG_BESSEL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bilinear-fixed"> <span class="term"> <strong><code>IMG_BILINEAR_FIXED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bicubic"> <span class="term"> <strong><code>IMG_BICUBIC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bicubic-fixed"> <span class="term"> <strong><code>IMG_BICUBIC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-blackman"> <span class="term"> <strong><code>IMG_BLACKMAN</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-box"> <span class="term"> <strong><code>IMG_BOX</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-bspline"> <span class="term"> <strong><code>IMG_BSPLINE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-catmullrom"> <span class="term"> <strong><code>IMG_CATMULLROM</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-gaussian"> <span class="term"> <strong><code>IMG_GAUSSIAN</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-generalized-cubic"> <span class="term"> <strong><code>IMG_GENERALIZED_CUBIC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-hermite"> <span class="term"> <strong><code>IMG_HERMITE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-hamming"> <span class="term"> <strong><code>IMG_HAMMING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-hanning"> <span class="term"> <strong><code>IMG_HANNING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-mitchell"> <span class="term"> <strong><code>IMG_MITCHELL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-power"> <span class="term"> <strong><code>IMG_POWER</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-quadratic"> <span class="term"> <strong><code>IMG_QUADRATIC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-sinc"> <span class="term"> <strong><code>IMG_SINC</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-nearest-neighbour"> <span class="term"> <strong><code>IMG_NEAREST_NEIGHBOUR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-weighted4"> <span class="term"> <strong><code>IMG_WEIGHTED4</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> <dt id="constant.img-triangle"> <span class="term"> <strong><code>IMG_TRIANGLE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type int">int</a></span>) </span> <dd> <span class="simpara"> Used together with <span class="function"><a href="function.imagesetinterpolation.html" class="function">imagesetinterpolation()</a></span>, available as of PHP 5.5.0. </span> </dd> </dt> </dl> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="image.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; 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