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100 lines
5.7 KiB
HTML
100 lines
5.7 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>Output a BMP image to browser or file</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.imagebmp" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">imagebmp</h1>
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<p class="verinfo">(PHP 7 >= 7.2.0)</p><p class="refpurpose"><span class="refname">imagebmp</span> — <span class="dc-title">Output a BMP image to browser or file</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.imagebmp-description">
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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>imagebmp</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$to</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$compressed</code><span class="initializer"> = <strong><code>TRUE</code></strong></span></span>
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]] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Outputs or saves a BMP version of the given <code class="parameter">image</code>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.imagebmp-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">image</code></dt>
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<dd>
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<p class="para">由图象创建函数(例如<span class="function"><a href="imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span>)返回的图象资源。</p></dd>
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<dt>
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<code class="parameter">to</code></dt>
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<dd>
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<p class="para">文件保存的路径，如果未设置或为 <strong><code>NULL</code></strong>，将会直接输出原始图象流。</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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<strong><code>NULL</code></strong> is invalid if the <code class="parameter">compressed</code> arguments is
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not used.
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</p>
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</p></blockquote>
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</dd>
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<dt>
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<code class="parameter">compressed</code></dt>
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<dd>
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<p class="para">
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Whether the BMP should be compressed with run-length encoding (RLE), or not.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.imagebmp-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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<div class="caution"><strong class="caution">Caution</strong><p class="simpara">However, if libgd fails to output the image, this function returns <strong><code>TRUE</code></strong>.</p></div>
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</div>
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<div class="refsect1 examples" id="refsect1-function.imagebmp-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-3658">
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<p><strong>Example #1 Saving a BMP file</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Create a blank image and add some text<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">120</span><span style="color: #007700">, </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$text_color </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">233</span><span style="color: #007700">, </span><span style="color: #0000BB">14</span><span style="color: #007700">, </span><span style="color: #0000BB">91</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">imagestring</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #DD0000">'BMP with PHP'</span><span style="color: #007700">, </span><span style="color: #0000BB">$text_color</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Save the image<br /></span><span style="color: #0000BB">imagebmp</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #DD0000">'php.bmp'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Free up memory<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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</div></div></div></body></html> |