<!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="exif.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="ref.exif.html">Exif Functions</a></div> <div class="up"><a href="book.exif.html">Exif</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="exif.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> <p class="para"> <dl> <dt id="constant.exif-use-mbstring"> <strong><code>EXIF_USE_MBSTRING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </dt> <dd> <span class="simpara"> This constant have a value of <em>1</em> if the <a href="ref.mbstring.html" class="link">mbstring</a> is enabled, otherwise the value is <em>0</em>. </span> </dd> </dl> </p> <p class="para"> The <span class="function"><a href="function.exif-imagetype.html" class="function">exif_imagetype()</a></span> lists several related built-in constants. </p> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="exif.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="ref.exif.html">Exif Functions</a></div> <div class="up"><a href="book.exif.html">Exif</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>