function.image2wbmp.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.image-type-to-mime-type.html">image_type_to_mime_type</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagealphablending.html">imagealphablending</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.image2wbmp" class="refentry"> <div class="refnamediv"> <h1 class="refname">image2wbmp</h1> <p class="verinfo">(PHP 4 >= 4.0.5, PHP 5)</p><p class="refpurpose"><span class="refname">image2wbmp</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>image2wbmp</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> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$threshold</tt></span> ]] )</div> <p class="para rdfs-comment"> <b>image2wbmp()</b> outputs or save a <acronym title="Wireless Bitmap">WBMP</acronym> version of the given <i><tt class="parameter">image</tt></i>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt><span class="term"><i><tt class="parameter">image</tt></i></span><dd><p class="para">An image resource, returned by one of the image creation functions, such as <a href="function.imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a>.</p></dd></dt> <dt> <span class="term"><i><tt class="parameter">filename</tt></i></span> <dd> <p class="para"> Path to the saved file. If not given, the raw image stream will be outputed directly. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">threshold</tt></i></span> <dd> <p class="para"> Threshold value, between 0 and 255 (inclusive). </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>image2wbmp()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$file </span><span style="color: #007700">= </span><span style="color: #DD0000">'php.png'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$image </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatefrompng</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">'Content-type: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">image_type_to_mime_type</span><span style="color: #007700">(</span><span style="color: #0000BB">IMAGETYPE_WBMP</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">image2wbmp</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">); </span><span style="color: #FF8000">// output the stream directly<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: WBMP support is only available if PHP was compiled against GD-1.8 or later. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.imagewbmp.html" class="function" rel="rdfs-seeAlso">imagewbmp()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.image-type-to-mime-type.html">image_type_to_mime_type</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagealphablending.html">imagealphablending</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></body></html>⌨️ 快捷键说明
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