mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-18 13:57:03 +08:00
106 lines
5.2 KiB
HTML
106 lines
5.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
|
|
<title>Gets information about the garbage collector</title>
|
|
</head>
|
|
<body class="docs"><div id="layout">
|
|
<div id="layout-content"><div id="function.gc-status" class="refentry">
|
|
<div class="refnamediv">
|
|
<h1 class="refname">gc_status</h1>
|
|
<p class="verinfo">(PHP 7 >= 7.3.0)</p><p class="refpurpose"><span class="refname">gc_status</span> — <span class="dc-title">Gets information about the garbage collector</span></p>
|
|
|
|
</div>
|
|
|
|
<div class="refsect1 description" id="refsect1-function.gc-status-description">
|
|
<h3 class="title">说明</h3>
|
|
<div class="methodsynopsis dc-description">
|
|
<span class="methodname"><strong>gc_status</strong></span>
|
|
( <span class="methodparam">void</span>
|
|
) : <span class="type">array</span></div>
|
|
|
|
<p class="para rdfs-comment">
|
|
Gets information about the current state of the garbage collector.
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 parameters" id="refsect1-function.gc-status-parameters">
|
|
<h3 class="title">参数</h3>
|
|
<p class="para">此函数没有参数。</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 returnvalues" id="refsect1-function.gc-status-returnvalues">
|
|
<h3 class="title">返回值</h3>
|
|
<p class="para">
|
|
Returns an associative array with the following elements:
|
|
<ul class="itemizedlist">
|
|
<li class="listitem">
|
|
<span class="simpara">
|
|
<em>"runs"</em>
|
|
</span>
|
|
</li>
|
|
<li class="listitem">
|
|
<span class="simpara">
|
|
<em>"collected"</em>
|
|
</span>
|
|
</li>
|
|
<li class="listitem">
|
|
<span class="simpara">
|
|
<em>"threshold"</em>
|
|
</span>
|
|
</li>
|
|
<li class="listitem">
|
|
<span class="simpara">
|
|
<em>"roots"</em>
|
|
</span>
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 examples" id="refsect1-function.gc-status-examples">
|
|
<h3 class="title">范例</h3>
|
|
<p class="para">
|
|
<div class="example" id="example-494">
|
|
<p><strong>Example #1 <span class="function"><strong>gc_status()</strong></span> Usage</strong></p>
|
|
<div class="example-contents">
|
|
<div class="phpcode"><pre><span style="color: #000000">
|
|
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// create object tree that needs gc collection<br /></span><span style="color: #0000BB">$a </span><span style="color: #007700">= new </span><span style="color: #0000BB">stdClass</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$a</span><span style="color: #007700">-></span><span style="color: #0000BB">b </span><span style="color: #007700">= [];<br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">100000</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> </span><span style="color: #0000BB">$b </span><span style="color: #007700">= new </span><span style="color: #0000BB">stdClass</span><span style="color: #007700">();<br /> </span><span style="color: #0000BB">$b</span><span style="color: #007700">-></span><span style="color: #0000BB">a </span><span style="color: #007700">= </span><span style="color: #0000BB">$a</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$a</span><span style="color: #007700">-></span><span style="color: #0000BB">b</span><span style="color: #007700">[] = </span><span style="color: #0000BB">$b</span><span style="color: #007700">;<br />}<br />unset(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br />unset(</span><span style="color: #0000BB">$b</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">gc_collect_cycles</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">gc_status</span><span style="color: #007700">());</span>
|
|
</span>
|
|
</pre></div>
|
|
</div>
|
|
|
|
<div class="example-contents"><p>以上例程的输出类似于：</p></div>
|
|
<div class="example-contents screen">
|
|
<div class="cdata"><pre>
|
|
array(4) {
|
|
["runs"]=>
|
|
int(5)
|
|
["collected"]=>
|
|
int(100002)
|
|
["threshold"]=>
|
|
int(50001)
|
|
["roots"]=>
|
|
int(0)
|
|
}
|
|
</pre></div>
|
|
</div>
|
|
</div>
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 seealso" id="refsect1-function.gc-status-seealso">
|
|
<h3 class="title">参见</h3>
|
|
<p class="para">
|
|
<ul class="simplelist">
|
|
<li class="member"><a href="features.gc.html" class="link">Garbage Collection</a></li>
|
|
</ul>
|
|
</p>
|
|
</div>
|
|
|
|
|
|
</div></div></div></body></html> |