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90 lines
3.3 KiB
HTML
90 lines
3.3 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>Return the integer object handle for given object</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.spl-object-id" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">spl_object_id</h1>
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<p class="verinfo">(PHP 7 >= 7.2.0)</p><p class="refpurpose"><span class="refname">spl_object_id</span> — <span class="dc-title">
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Return the integer object handle for given object
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.spl-object-id-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>spl_object_id</strong></span>
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( <span class="methodparam"><span class="type">object</span> <code class="parameter">$obj</code></span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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This function returns a unique identifier for the object. The object id is
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unique for the lifetime of the object. Once the object is destroyed, its id
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may be reused for other objects. This behavior is similar to
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<span class="function"><a href="spl_object_hash.html" class="function">spl_object_hash()</a></span>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.spl-object-id-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">object</code></dt>
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<dd>
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<p class="para">
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Any object.
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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.spl-object-id-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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An integer identifier that is unique for each currently existing object and
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is always the same for each object.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.spl-object-id-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-4723">
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<p><strong>Example #1 A <span class="function"><strong>spl_object_id()</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 />$id </span><span style="color: #007700">= </span><span style="color: #0000BB">spl_object_id</span><span style="color: #007700">(</span><span style="color: #0000BB">$object</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$storage</span><span style="color: #007700">[</span><span style="color: #0000BB">$id</span><span style="color: #007700">] = </span><span style="color: #0000BB">$object</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 class="refsect1 notes" id="refsect1-function.spl-object-id-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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When an object is destroyed, its id may be reused for other objects.
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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> |