File: imagecreatefromgif.xml

package info (click to toggle)
php-doc 20081024-1
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 57,752 kB
  • ctags: 3,858
  • sloc: xml: 686,554; php: 19,446; perl: 610; cpp: 500; makefile: 336; sh: 114; awk: 28
file content (119 lines) | stat: -rw-r--r-- 2,962 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.22 $ -->
<refentry xml:id="function.imagecreatefromgif" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>imagecreatefromgif</refname>
  <refpurpose>Create a new image from file or URL</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>imagecreatefromgif</methodname>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>imagecreatefromgif</function> returns an image identifier
   representing the image obtained from the given filename.
  </para>
  &tip.fopen-wrapper;
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>filename</parameter></term>
     <listitem>
      <para>
       Path to the GIF image.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an image resource identifier on success, &false; on errors.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>Example to handle an error during loading of a GIF</title>
   <programlisting role="php">
<![CDATA[
<?php
function LoadGif($imgname)
{
    /* Attempt to open */
    $im = @imagecreatefromgif($imgname);

    /* See if it failed */
    if(!$im)
    {
        /* Create a blank image */
        $im = imagecreatetruecolor (150, 30);
        $bgc = imagecolorallocate ($im, 255, 255, 255);
        $tc = imagecolorallocate ($im, 0, 0, 0);

        imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);

        /* Output an error message */
        imagestring ($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
    }

    return $im;
}

header('Content-Type: image/gif');

$img = LoadGif('bogus.image');

imagegif($img);
imagedestroy($img);
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <mediaobject>
    <imageobject>
     <imagedata fileref="figures/image.imagecreatefromgif.gif"/>
    </imageobject>
   </mediaobject>
  </example>
 </refsect1>
 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <para>
    GIF support was removed from the GD library in Version 1.6,
    and added back in Version 2.0.28. This function is not
    available between these versions.
   </para>
  </note>
  &warn.no-win32-fopen-wrapper;
 </refsect1>
</refentry>

<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->