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205 lines
7.8 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>Replace a function definition with a new implementation</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.runkit-function-redefine" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">runkit_function_redefine</h1>
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<p class="verinfo">(PECL runkit >= 0.7.0)</p><p class="refpurpose"><span class="refname">runkit_function_redefine</span> — <span class="dc-title">
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Replace a function definition with a new implementation
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.runkit-function-redefine-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>runkit_function_redefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$funcname</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$arglist</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$code</code></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$return_by_reference</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$doc_comment</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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]] ) : <span class="type">bool</span></div>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>runkit_function_redefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$funcname</code></span>
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, <span class="methodparam"><span class="type"><a href="class.closure.html" class="type Closure">Closure</a></span> <code class="parameter">$closure</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$doc_comment</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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] ) : <span class="type">bool</span></div>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">默认情况下，仅在用户空间可删除，重命名，或者修改函数。为了覆盖内部函数，必须启用 <var class="filename">php.ini</var> 中的
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<em>runkit.internal_override</em> 设置。</span>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.runkit-function-redefine-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">funcname</code></dt>
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<dd>
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<p class="para">
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Name of function to redefine
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</p>
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</dd>
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<dt>
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<code class="parameter">arglist</code></dt>
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<dd>
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<p class="para">
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New list of arguments to be accepted by function
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</p>
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</dd>
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<dt>
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<code class="parameter">code</code></dt>
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<dd>
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<p class="para">
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New code implementation
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</p>
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</dd>
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<dt>
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<code class="parameter">closure</code></dt>
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<dd>
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<p class="para">
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A <a href="class.closure.html" class="classname">closure</a> that defines the function.
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</p>
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</dd>
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<dt>
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<code class="parameter">return_by_reference</code></dt>
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<dd>
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<p class="para">
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Whether the function should return by reference.
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</p>
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</dd>
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<dt>
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<code class="parameter">doc_comment</code></dt>
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<dd>
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<p class="para">
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The doc comment of the function.
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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.runkit-function-redefine-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>
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<div class="refsect1 changelog" id="refsect1-function.runkit-function-redefine-changelog">
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<h3 class="title">更新日志</h3>
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>runkit 1.0.4</td>
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<td>
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An alternative syntax expecting a <code class="parameter">closure</code> has been added.
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</td>
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</tr>
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<tr>
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<td>runkit 1.0.4</td>
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<td>
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The optional parameters <code class="parameter">return_by_reference</code> and
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<code class="parameter">doc_comment</code> have been added.
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="refsect1 examples" id="refsect1-function.runkit-function-redefine-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-551">
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<p><strong>Example #1 A <span class="function"><strong>runkit_function_redefine()</strong></span> example</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: #007700">function </span><span style="color: #0000BB">testme</span><span style="color: #007700">() {<br /> echo </span><span style="color: #DD0000">"Original Testme Implementation\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">testme</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">runkit_function_redefine</span><span style="color: #007700">(</span><span style="color: #DD0000">'testme'</span><span style="color: #007700">,</span><span style="color: #DD0000">''</span><span style="color: #007700">,</span><span style="color: #DD0000">'echo "New Testme Implementation\n";'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">testme</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 class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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Original Testme Implementation
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New Testme Implementation
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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 seealso" id="refsect1-function.runkit-function-redefine-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="runkit_function_add.html" class="function" rel="rdfs-seeAlso">runkit_function_add()</a> - Add a new function, similar to create_function</span></li>
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<li class="member"><span class="function"><a href="runkit_function_copy.html" class="function" rel="rdfs-seeAlso">runkit_function_copy()</a> - Copy a function to a new function name</span></li>
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<li class="member"><span class="function"><a href="runkit_function_rename.html" class="function" rel="rdfs-seeAlso">runkit_function_rename()</a> - Change a function's name</span></li>
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<li class="member"><span class="function"><a href="runkit_function_remove.html" class="function" rel="rdfs-seeAlso">runkit_function_remove()</a> - Remove a function definition</span></li>
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<li class="member"><span class="function"><a href="runkit_method_redefine.html" class="function" rel="rdfs-seeAlso">runkit_method_redefine()</a> - Dynamically changes the code of the given method</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |