Sophie: php-manual-en-4.3.0-2mdk noarch

php-manual-en-4.3.0-2mdk.noarch.rpm

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>exif_thumbnail</H1
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><A
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></A
><P
>    (PHP 4 &#62;= 4.2.0)</P
>exif_thumbnail&nbsp;--&nbsp;Retrieve the embedded thumbnail of a TIFF or JPEG image</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN34036"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>exif_thumbnail</B
> ( string filename [, int &#38;width [, int &#38;height [, int &#38;imagetype]]])<BR
></BR
><P
>&#13;    <B
CLASS="function"
>exif_thumbnail()</B
> reads the embedded thumbnail of
    a TIFF or JPEG image. If the image contains no thumbnail <TT
CLASS="constant"
><B
>FALSE</B
></TT
>
    will be returned.
   </P
><P
>&#13;    The parameters <TT
CLASS="parameter"
><I
>width</I
></TT
>, <TT
CLASS="parameter"
><I
>height</I
></TT
> and
    <TT
CLASS="parameter"
><I
>imagetype</I
></TT
> are available since PHP 4.3 and return the size 
    of the thumbnail as well as its type. It is possible that
    <B
CLASS="function"
>exif_thumbnail()</B
> cannot create an image but determine its
    size. In this case the return value is <TT
CLASS="constant"
><B
>FALSE</B
></TT
> but <TT
CLASS="parameter"
><I
>width</I
></TT
> and
    <TT
CLASS="parameter"
><I
>height</I
></TT
> are set.
   </P
><P
>&#13;    If you want to deliver thumbnails through this function you should send the 
    mimetype information using <A
HREF="function.header.html"
><B
CLASS="function"
>header()</B
></A
> function. The following
    example demonstrates this:
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><P
><B
>Example 1. <B
CLASS="function"
>exif_thumbnail()</B
> example</B
></P
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><PRE
CLASS="php"
>&#60;?php
if (array_key_exists('file',$_REQUEST)) {
	$image = exif_thumbnail($_REQUEST['file'], $width, $height, $type);
} else {
    $image = false;
}
if ($image!==false) {
    header("Content-type: ".image_type_to_mime_type($type));
    echo $image;
    exit;
} else {
    // no thumbnail available, handle the error here
    echo "No thumbnail available";
}
?&#62;</PRE
></TD
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>
   </P
><P
>&#13;    Starting from version PHP 4.3 the function <B
CLASS="function"
>exif_thumbnail()</B
> can
    return thumbnails in <SPAN
CLASS="acronym"
>TIFF</SPAN
> format.
   </P
><P
>&#13;    <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      This function is only available in PHP 4 compiled using 
      <TT
CLASS="option"
>--enable-exif</TT
>.
      Its functionality and behaviour has changed in PHP 4.2
     </P
><P
>&#13;      This function does not require the GD image library.
     </P
><P
>&#13;      See also <A
HREF="function.exif-read-data.html"
><B
CLASS="function"
>exif_read_data()</B
></A
> and <A
HREF="function.image-type-to-mime-type.html"
><B
CLASS="function"
>image_type_to_mime_type()</B
></A
>.
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