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109 lines
3.8 KiB
HTML
109 lines
3.8 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>Overrides built-in functions</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.override-function" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">override_function</h1>
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<p class="verinfo">(PECL apd >= 0.2)</p><p class="refpurpose"><span class="refname">override_function</span> — <span class="dc-title">Overrides built-in functions</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.override-function-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>override_function</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$function_name</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$function_args</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$function_code</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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Overrides built-in functions by replacing them in the symbol table.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.override-function-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">function_name</code></dt>
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<dd>
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<p class="para">
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The function to override.
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</p>
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</dd>
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<dt>
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<code class="parameter">function_args</code></dt>
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<dd>
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<p class="para">
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The function arguments, as a comma separated string.
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</p>
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<p class="para">
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Usually you will want to pass this parameter, as well as the
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<code class="parameter">function_code</code> parameter, as a single quote
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delimited string. The reason for using single quoted strings, is to
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protect the variable names from parsing, otherwise, if you use double
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quotes there will be a need to escape the variable names, e.g.
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\<var class="varname"><var class="varname">$your_var</var></var>.
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</p>
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</dd>
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<dt>
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<code class="parameter">function_code</code></dt>
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<dd>
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<p class="para">
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The new code for 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.override-function-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 examples" id="refsect1-function.override-function-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-440">
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<p><strong>Example #1 <span class="function"><strong>override_function()</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 />override_function</span><span style="color: #007700">(</span><span style="color: #DD0000">'test'</span><span style="color: #007700">, </span><span style="color: #DD0000">'$a,$b'</span><span style="color: #007700">, </span><span style="color: #DD0000">'echo "DOING TEST"; return $a * $b;'</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> |