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49 lines
3.1 KiB
HTML
49 lines
3.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>以 WBMP 格式将图像输出到浏览器或文件</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.imagewbmp" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">imagewbmp</h1>
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<p class="verinfo">(PHP 4 >= 4.0.1, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imagewbmp</span> — <span class="dc-title">以 WBMP 格式将图像输出到浏览器或文件</span></p>
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</div>
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<div class="refsect1 unknown-unknown-seealsq" id="refsect1-function.imagewbmp-unknown-unknown-seealsq">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>imagewbmp</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$foreground</code></span>
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]] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>imagewbmp()</strong></span> 从
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<code class="parameter">image</code> 图像创建一个名为 <code class="parameter">filename</code> 的
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<acronym title="Wireless Bitmap">WBMP</acronym> 文件。<code class="parameter">image</code>
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参数是 <span class="function"><a href="imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span> 的返回值。
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</p>
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<p class="para">
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<code class="parameter">filename</code> 参数是可选项，如果省略，则直接将原图像流输出。通过用
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<span class="function"><a href="header.html" class="function">header()</a></span> 发送 <acronym>image/vnd.wap.wbmp</acronym>
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的 Content-type，可以创建直接输出 WBMP 图像的 PHP 脚本。
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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WBMP 支持仅能用于 PHP 编译时加入了 GD-1.8 或更高版本时。
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</p>
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</p></blockquote>
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</p>
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<p class="para">
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用可选的 <code class="parameter">foreground</code> 参数可以设定前景色，用
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<span class="function"><a href="imagecolorallocate.html" class="function">imagecolorallocate()</a></span> 函数返回的颜色标识符。默认前景色是黑色。
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</p>
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<p class="para">
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参见 <span class="function"><a href="image2wbmp.html" class="function">image2wbmp()</a></span>，<span class="function"><a href="imagepng.html" class="function">imagepng()</a></span>，<span class="function"><a href="imagegif.html" class="function">imagegif()</a></span>，<span class="function"><a href="imagejpeg.html" class="function">imagejpeg()</a></span>
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和 <span class="function"><a href="imagetypes.html" class="function">imagetypes()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |