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<html>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Dynamically changes the code of the given method</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-method-redefine" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">runkit_method_redefine</h1>
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<p class="verinfo">(PECL runkit >= 0.7.0)</p><p class="refpurpose"><span class="refname">runkit_method_redefine</span> — <span class="dc-title">Dynamically changes the code of the given method</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.runkit-method-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_method_redefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$classname</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$methodname</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$args</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$code</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code><span class="initializer"> = RUNKIT_ACC_PUBLIC</span></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$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_method_redefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$classname</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$methodname</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">$closure</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code><span class="initializer"> = RUNKIT_ACC_PUBLIC</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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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数不能用来操作当前正常运行（或运行链上）的方法。</span>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.runkit-method-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">classname</code></dt>
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<dd>
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<p class="para">
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The class in which to redefine the method
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</p>
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</dd>
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<dt>
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<code class="parameter">methodname</code></dt>
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<dd>
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<p class="para">
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The name of the method to redefine
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</p>
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</dd>
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<dt>
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<code class="parameter">args</code></dt>
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<dd>
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<p class="para">
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Comma-delimited list of arguments for the redefined method
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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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The new code to be evaluated when <code class="parameter">methodname</code>
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is called
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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 method.
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</p>
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</dd>
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<dt>
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<code class="parameter">flags</code></dt>
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<dd>
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<p class="para">
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The redefined method can be
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<strong><code>RUNKIT_ACC_PUBLIC</code></strong>,
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<strong><code>RUNKIT_ACC_PROTECTED</code></strong> or
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<strong><code>RUNKIT_ACC_PRIVATE</code></strong> optionally combined via bitwise OR with
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<strong><code>RUNKIT_ACC_STATIC</code></strong> (since 1.0.1)
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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-method-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-method-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 parameter <code class="parameter">doc_comment</code> has 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-method-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-555">
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<p><strong>Example #1 <span class="function"><strong>runkit_method_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">class </span><span style="color: #0000BB">Example </span><span style="color: #007700">{<br /> function </span><span style="color: #0000BB">foo</span><span style="color: #007700">() {<br /> return </span><span style="color: #DD0000">"foo!\n"</span><span style="color: #007700">;<br /> }<br />}<br /><br /></span><span style="color: #FF8000">// create an Example object<br /></span><span style="color: #0000BB">$e </span><span style="color: #007700">= new </span><span style="color: #0000BB">Example</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// output Example::foo() (before redefine)<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Before: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">foo</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Redefine the 'foo' method<br /></span><span style="color: #0000BB">runkit_method_redefine</span><span style="color: #007700">(<br /> </span><span style="color: #DD0000">'Example'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'foo'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">''</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'return "bar!\n";'</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">RUNKIT_ACC_PUBLIC<br /></span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// output Example::foo() (after redefine)<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"After: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">foo</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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Before: foo!
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After: bar!
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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-method-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_method_add.html" class="function" rel="rdfs-seeAlso">runkit_method_add()</a> - Dynamically adds a new method to a given class</span></li>
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<li class="member"><span class="function"><a href="runkit_method_copy.html" class="function" rel="rdfs-seeAlso">runkit_method_copy()</a> - Copies a method from class to another</span></li>
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<li class="member"><span class="function"><a href="runkit_method_remove.html" class="function" rel="rdfs-seeAlso">runkit_method_remove()</a> - Dynamically removes the given method</span></li>
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<li class="member"><span class="function"><a href="runkit_method_rename.html" class="function" rel="rdfs-seeAlso">runkit_method_rename()</a> - Dynamically changes the name of the given method</span></li>
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<li class="member"><span class="function"><a href="runkit_function_redefine.html" class="function" rel="rdfs-seeAlso">runkit_function_redefine()</a> - Replace a function definition with a new implementation</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> |