function.inet-ntop.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>Converts a packed internet address to a human readable representation</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="function.headers-sent.html">headers_sent</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.inet-pton.html">inet_pton</a></div> <div class="up"><a href="ref.network.html">Network Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.inet-ntop" class="refentry"> <div class="refnamediv"> <h1 class="refname">inet_ntop</h1> <p class="verinfo">(PHP 5 >= 5.1.0)</p><p class="refpurpose"><span class="refname">inet_ntop</span> — <span class="dc-title">Converts a packed internet address to a human readable representation</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>inet_ntop</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$in_addr</tt></span> )</div> <p class="simpara"> This function converts a 32bit IPv4, or 128bit IPv6 address (if PHP was built with IPv6 support enabled) into an address family appropriate string representation. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">in_addr</tt></i></span> <dd> <p class="para"> A 32bit IPv4, or 128bit IPv6 address. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a string representation of the address or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>inet_ntop()</b> Example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$packed </span><span style="color: #007700">= </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">127</span><span style="color: #007700">) . </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">) . </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">) . </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$expanded </span><span style="color: #007700">= </span><span style="color: #0000BB">inet_ntop</span><span style="color: #007700">(</span><span style="color: #0000BB">$packed</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Outputs: 127.0.0.1 */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">$expanded</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$packed </span><span style="color: #007700">= </span><span style="color: #0000BB">str_repeat</span><span style="color: #007700">(</span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">), </span><span style="color: #0000BB">15</span><span style="color: #007700">) . </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$expanded </span><span style="color: #007700">= </span><span style="color: #0000BB">inet_ntop</span><span style="color: #007700">(</span><span style="color: #0000BB">$packed</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Outputs: ::1 */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">$expanded</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">5.3.0</td> <td colspan="1" rowspan="1" align="left"> This function is now available on Windows platforms. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.long2ip.html" class="function" rel="rdfs-seeAlso">long2ip()</a></li> <li class="member"><a href="function.ip2long.html" class="function" rel="rdfs-seeAlso">ip2long()</a></li> <li class="member"><a href="function.inet-pton.html" class="function" rel="rdfs-seeAlso">inet_pton()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.headers-sent.html">headers_sent</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.inet-pton.html">inet_pton</a></div> <div class="up"><a href="ref.network.html">Network 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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