function.imagegif.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Output image to browser or file</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagegd.html">imagegd</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagegrabscreen.html">imagegrabscreen</a></div> <div class="up"><a href="ref.image.html">GD Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.imagegif" class="refentry"> <div class="refnamediv"> <h1 class="refname">imagegif</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">imagegif</span> — <span class="dc-title">Output image to browser or file</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>imagegif</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$image</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$filename</tt></span> ] )</div> <p class="para rdfs-comment"> <b>imagegif()</b> creates the <acronym title="Graphic Interchange Format">GIF</acronym> file in filename from the image <i><tt class="parameter">image</tt></i>. The <i><tt class="parameter">image</tt></i> argument is the return from the <a href="function.imagecreate.html" class="function">imagecreate()</a> or <i>imagecreatefrom*</i> function. </p> <p class="para"> The image format will be <acronym>GIF87a</acronym> unless the image has been made transparent with <a href="function.imagecolortransparent.html" class="function">imagecolortransparent()</a>, in which case the image format will be <acronym>GIF89a</acronym>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt><span class="term"><i><tt class="parameter">image</tt></i></span><dd><p class="para">An image resource, returned by one of the image creation functions, such as <a href="function.imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a>.</p></dd></dt> <dt> <span class="term"><i><tt class="parameter">filename</tt></i></span> <dd> <p class="para"> The path to save the file to. If not set or <b><tt>NULL</tt></b>, the raw image stream will be outputted directly. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Outputting an image using <b>imagegif()</b></b></p>⌨️ 快捷键说明
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