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67 lines
4.1 KiB
HTML
67 lines
4.1 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>中断编译器的执行</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.halt-compiler" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">__halt_compiler</h1>
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<p class="verinfo">(PHP 5 >= 5.1.0, PHP 7)</p><p class="refpurpose"><span class="refname">__halt_compiler</span> — <span class="dc-title">
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中断编译器的执行
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.halt-compiler-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>__halt_compiler</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type"><span class="type void">void</span></span></div>
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<p class="para rdfs-comment">
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中断编译器的执行。常用于在PHP脚本内嵌入数据，类似于安装文件。
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</p>
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<p class="para">
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可以通过常量 <strong><code>__COMPILER_HALT_OFFSET__</code></strong> 获取数据开始字节所在的位置，且该常量仅被定义于使用了__halt_compiler的文件。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.halt-compiler-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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没有返回值。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.halt-compiler-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-4539">
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<p><strong>Example #1 <span class="function"><strong>__halt_compiler()</strong></span> 例子</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 /><br /></span><span style="color: #FF8000">// open this file<br /></span><span style="color: #0000BB">$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">, </span><span style="color: #DD0000">'r'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// seek file pointer to data<br /></span><span style="color: #0000BB">fseek</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">__COMPILER_HALT_OFFSET__</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// and output it<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">stream_get_contents</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">// the end of the script execution<br /></span><span style="color: #007700">__halt_compiler(); </span><span style="color: #0000BB">the installation data </span><span style="color: #007700">(</span><span style="color: #0000BB">eg</span><span style="color: #007700">. </span><span style="color: #0000BB">tar</span><span style="color: #007700">, </span><span style="color: #0000BB">gz</span><span style="color: #007700">, </span><span style="color: #0000BB">PHP</span><span style="color: #007700">, </span><span style="color: #0000BB">etc</span><span style="color: #007700">.)</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 class="refsect1 notes" id="refsect1-function.halt-compiler-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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<span class="function"><strong>__halt_compiler()</strong></span> 仅能够在最外层使用。
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</p>
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</p></blockquote>
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</div>
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</div></div></div></body></html> |