File: function.imagecreatefromgif.html

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<HTML
><HEAD
><TITLE
>ImageCreateFromGIF</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.57"><LINK
REL="HOME"
TITLE="PHP Manual"
HREF="manual.html"><LINK
REL="UP"
TITLE="Image functions"
HREF="ref.image.html"><LINK
REL="PREVIOUS"
TITLE="ImageCreate"
HREF="function.imagecreate.html"><LINK
REL="NEXT"
TITLE="ImageCreateFromJPEG"
HREF="function.imagecreatefromjpeg.html"><META
NAME="HTTP_EQUIV"
CONTENT="text/html; charset=ISO-8859-1"></HEAD
><BODY
CLASS="refentry"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>PHP Manual</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="function.imagecreate.html"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="function.imagecreatefromjpeg.html"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="function.imagecreatefromgif"
>ImageCreateFromGIF</A
></H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN15191"
></A
><P
>    (PHP3 , PHP4 )</P
>ImageCreateFromGIF&nbsp;--&nbsp;Create a new image from file or URL</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN15194"
></A
><H2
>Description</H2
><DIV
CLASS="funcsynopsis"
><A
NAME="AEN15196"
></A
><P
></P
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="function"
>imagecreatefromgif</B
></CODE
> (string filename)</CODE
></P
><P
></P
></DIV
><P
>&#13;     <B
CLASS="function"
>ImageCreateFromGif()</B
> returns an image identifier
     representing the image obtained from the given filename.
    </P
><P
> 
     <B
CLASS="function"
>ImageCreateFromGif()</B
> returns an empty string
     on failure. It also outputs an error message, which unfortunately
     displays as a broken link in a browser.  To ease debugging the
     following example will produce an error GIF:
    <TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN15206"
></A
><P
><B
>Example 1. 
      Example to handle an error during creation (courtesy
      vic@zymsys.com)
     </B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="programlisting"
>&#13;function LoadGif ($imgname) {
    $im = @ImageCreateFromGIF ($imgname); /* Attempt to open */
    if (!$im) { /* See if it failed */
        $im = ImageCreate (150, 30); /* Create a blank image */
        $bgc = ImageColorAllocate ($im, 255, 255, 255);
        $tc  = ImageColorAllocate ($im, 0, 0, 0);
        ImageFilledRectangle ($im, 0, 0, 150, 30, $bgc); 
        /* Output an errmsg */
        ImageString($im, 1, 5, 5, "Error loading $imgname", $tc); 
    }
    return $im;
}
      </PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
     <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
       Since all GIF support was removed from the GD library in
       version 1.6, this function is not available if you are using
       that version of the GD library.
      </P
></BLOCKQUOTE
></DIV
>
    </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="function.imagecreate.html"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="manual.html"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="function.imagecreatefromjpeg.html"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>ImageCreate</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ref.image.html"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>ImageCreateFromJPEG</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>