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><H1
><A
NAME="function.getimagesize"
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>getimagesize</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN34174"
></A
><P
>    (PHP 3, PHP 4 )</P
>getimagesize&nbsp;--&nbsp;Get the size of an image</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN34177"
></A
><H2
>Description</H2
>array <B
CLASS="methodname"
>getimagesize</B
> ( string filename [, array imageinfo])<BR
></BR
><P
>&#13;    The <B
CLASS="function"
>getimagesize()</B
> function will determine the
    size of any <SPAN
CLASS="acronym"
>GIF</SPAN
>, <SPAN
CLASS="acronym"
>JPG</SPAN
>,
    <SPAN
CLASS="acronym"
>PNG</SPAN
>, <SPAN
CLASS="acronym"
>SWF</SPAN
>, 
    <SPAN
CLASS="acronym"
>SWC</SPAN
>, <SPAN
CLASS="acronym"
>PSD</SPAN
>, 
    <SPAN
CLASS="acronym"
>TIFF</SPAN
>, <SPAN
CLASS="acronym"
>BMP</SPAN
> or 
    <SPAN
CLASS="acronym"
>IFF</SPAN
> 
    image file and return the dimensions along with the file type and 
    a height/width text string to be used inside a normal 
    <SPAN
CLASS="acronym"
>HTML</SPAN
> <TT
CLASS="literal"
>IMG</TT
> tag.
   </P
><P
>&#13;    Returns an array with 4 elements. Index 0 contains the width of
    the image in pixels. Index 1 contains the height.  Index 2 is a
    flag indicating the type of the image: 1 = GIF, 2 = JPG, 3 =
    PNG, 4 = SWF, 5 = PSD, 6 = BMP, 7 = TIFF(intel byte order),
    8 = TIFF(motorola byte order), 9 = JPC, 10 = JP2, 11 = JPX, 12 =
    JB2, 13 = SWC, 14 = IFF. These values correspond to the IMAGETYPE
    constants that were added in PHP 4.3. Index 3 is a text string with 
    the correct height="yyy" width="xxx" string that can be used 
    directly in an IMG tag.
    <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN34202"
></A
><P
><B
>Example 1. getimagesize (file)</B
></P
><TABLE
BORDER="0"
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><TR
><TD
><PRE
CLASS="php"
>&#60;?php
$size = getimagesize ("img/flag.jpg");
echo "&#60;img src=\"img/flag.jpg\" {$size[3]}&#62;";
?&#62;</PRE
></TD
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></TD
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>
   </P
><P
>&#13;    <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN34206"
></A
><P
><B
>Example 2. getimagesize (URL)</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="php"
>&#60;?php $size = getimagesize ("http://www.example.com/gifs/logo.gif"); ?&#62;</PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
   </P
><P
>&#13;    With <SPAN
CLASS="acronym"
>JPG</SPAN
> images, two extra indexes are returned:
    <TT
CLASS="literal"
>channels</TT
> and <TT
CLASS="literal"
>bits</TT
>.
    <TT
CLASS="literal"
>channels</TT
> will be 3 for RGB pictures and 4 for CMYK
    pictures. <TT
CLASS="literal"
>bits</TT
> is the number of bits for each color.
   </P
><P
>&#13;    Beginning with PHP 4.3, <TT
CLASS="literal"
>bits</TT
> and
    <TT
CLASS="literal"
>channels</TT
> are present for other image types, too.
    However, the presence of these values can be a bit confusing. As an
    example, <SPAN
CLASS="acronym"
>GIF</SPAN
> always uses 3 channels per pixel, but the
    number of bits per pixel cannot be calculated for an animated
    <SPAN
CLASS="acronym"
>GIF</SPAN
> with a global color table.
   </P
><P
>&#13;    Some formats may contain no image or may contain multiple images. In these
    cases, <B
CLASS="function"
>getimagesize()</B
> might not be able to properly
    determine the image size. <B
CLASS="function"
>getimagesize()</B
> will return
    zero for width and height in these cases.
   </P
><P
>&#13;    Beginning with PHP 4.3, <B
CLASS="function"
>getimagesize()</B
> also returns an
    additional parameter, <TT
CLASS="literal"
>mime</TT
>, that corresponds with the
    MIME type of the image.  This information can be used to deliver images
    with correct HTTP Content-type headers:
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN34226"
></A
><P
><B
>Example 3. getimagesize() and MIME types</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="php"
>&#60;?php
$size = getimagesize ($filename);
$fp=fopen($filename, "rb");
if ($size &#38;&#38; $fp) {
  header("Content-type: {$size['mime']}");
  fpassthru($fp);
  exit;
} else {
  // error
}
?&#62;</PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
   </P
><P
>&#13;    If accessing the <TT
CLASS="parameter"
><I
>filename</I
></TT
> image is impossible,
    or if it isn't a valid picture, <B
CLASS="function"
>getimagesize()</B
>
    will return <TT
CLASS="constant"
><B
>FALSE</B
></TT
> and generate a warning.
   </P
><P
>&#13;    The optional <TT
CLASS="parameter"
><I
>imageinfo</I
></TT
> parameter allows
    you to extract some extended information from the image
    file. Currently, this will return the different
    <SPAN
CLASS="acronym"
>JPG</SPAN
> APP markers as an associative array. Some
    programs use these APP markers to embed text information in
    images. A very common one is to embed <SPAN
CLASS="acronym"
>IPTC</SPAN
>
    <A
HREF="http://www.iptc.org/"
TARGET="_top"
>http://www.iptc.org/</A
> information in the
    APP13 marker. You can use the <A
HREF="function.iptcparse.html"
><B
CLASS="function"
>iptcparse()</B
></A
>
    function to parse the binary APP13 marker into something
    readable.
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><TR
><TD
><DIV
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><A
NAME="AEN34239"
></A
><P
><B
>Example 4. getimagesize() returning IPTC</B
></P
><TABLE
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><TR
><TD
><PRE
CLASS="programlisting"
>&#60;?php
$size = getimagesize ("testimg.jpg",&#38;$info);
if (isset ($info["APP13"])) {
    $iptc = iptcparse ($info["APP13"]);
    var_dump ($iptc);
}
?&#62;</PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
    <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      TIFF support was added in PHP 4.2.
     </P
><P
>&#13;      This function does not require the GD image library.
     </P
><P
>&#13;      See also <A
HREF="function.image-type-to-mime-type.html"
><B
CLASS="function"
>image_type_to_mime_type()</B
></A
>, 
      <A
HREF="function.exif-imagetype.html"
><B
CLASS="function"
>exif_imagetype()</B
></A
>, <A
HREF="function.exif-read-data.html"
><B
CLASS="function"
>exif_read_data()</B
></A
>
      and <A
HREF="function.exif-thumbnail.html"
><B
CLASS="function"
>exif_thumbnail()</B
></A
>.
     </P
><P
>&#13;      URL support was added in PHP 4.0.5.
     </P
></BLOCKQUOTE
></DIV
>
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