📄 function.spl-object-hash.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Return hash id for given object</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.spl.html">SPL Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.arrayiterator.html">ArrayIterator</a></div> <div class="up"><a href="ref.spl.html">SPL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.spl-object-hash" class="refentry"> <div class="refnamediv"> <h1 class="refname">spl_object_hash</h1> <p class="verinfo">(PHP 5 >= 5.2.0)</p><p class="refpurpose"><span class="refname">spl_object_hash</span> — <span class="dc-title"> Return hash id for given object </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>spl_object_hash</b></b></span> ( <span class="methodparam"><span class="type">object</span> <tt class="parameter">$obj</tt></span> )</div> <p class="para rdfs-comment"> This function returns an unique identifier for the object. This id can be used as a hash key for storing objects or for identifying an object. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">object</tt></i></span> <dd> <p class="para"> Any object. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> A string that is unique for each object and is always the same for the same object. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>spl_object_hash()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$id </span><span style="color: #007700">= </span><span style="color: #0000BB">spl_object_hash</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></span></code></div> </div> </div> </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.spl.html">SPL Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.arrayiterator.html">ArrayIterator</a></div> <div class="up"><a href="ref.spl.html">SPL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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