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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>Split string into array by regular expression case insensitive</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.split.html">split</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sql-regcase.html">sql_regcase</a></div> <div class="up"><a href="ref.regex.html">POSIX Regex Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.spliti" class="refentry"> <div class="refnamediv"> <h1 class="refname">spliti</h1> <p class="verinfo">(PHP 4 >= 4.0.1, PHP 5)</p><p class="refpurpose"><span class="refname">spliti</span> — <span class="dc-title">Split string into array by regular expression case insensitive</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>spliti</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$pattern</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$string</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$limit</tt></span> ] )</div> <p class="para rdfs-comment"> Splits a <i><tt class="parameter">string</tt></i> into array by regular expression. </p> <p class="para"> This function is identical to <a href="function.split.html" class="function">split()</a> except that this ignores case distinction when matching alphabetic characters. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">pattern</tt></i></span> <dd> <p class="para"> Case insensitive regular expression. </p> <p class="para"> If you want to split on any of the characters which are considered special by regular expressions, you'll need to escape them first. If you think <b>spliti()</b> (or any other regex function, for that matter) is doing something weird, please read the file <var class="filename">regex.7</var>, included in the <var class="filename">regex/</var> subdirectory of the PHP distribution. It's in manpage format, so you'll want to do something along the lines of <strong class="command">man /usr/local/src/regex/regex.7</strong> in order to read it. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">string</tt></i></span> <dd> <p class="para"> The input string. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">limit</tt></i></span> <dd> <p class="para"> If <i><tt class="parameter">limit</tt></i> is set, the returned array will contain a maximum of <i><tt class="parameter">limit</tt></i> elements with the last element containing the whole rest of <i><tt class="parameter">string</tt></i>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an array of strings, each of which is a substring of <i><tt class="parameter">string</tt></i> formed by splitting it on boundaries formed by the case insensitive regular expression <i><tt class="parameter">pattern</tt></i>. </p> <p class="para"> If there are <span class="replaceable">n</span> occurrences of <i><tt class="parameter">pattern</tt></i>, the returned array will contain <i><span class="replaceable">n</span>+1</i> items. For example, if there is no occurrence of <i><tt class="parameter">pattern</tt></i>, an array with only one element will be returned. Of course, this is also true if <i><tt class="parameter">string</tt></i> is empty. If an error occurs, <b>spliti()</b> returns <b><tt>FALSE</tt></b>. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> This example splits a string using 'a' as the separator : <div class="example"> <p><b>Example #1 <b>spliti()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$string </span><span style="color: #007700">= </span><span style="color: #DD0000">"aBBBaCCCADDDaEEEaGGGA"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$chunks </span><span style="color: #007700">= </span><span style="color: #0000BB">spliti </span><span style="color: #007700">(</span><span style="color: #DD0000">"a"</span><span style="color: #007700">, </span><span style="color: #0000BB">$string</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$chunks</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Array( [0] => [1] => BBB [2] => CCC [3] => DDD [4] => EEEaGGGA)</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.preg-split.html" class="function" rel="rdfs-seeAlso">preg_split()</a></li> <li class="member"><a href="function.split.html" class="function" rel="rdfs-seeAlso">split()</a></li> <li class="member"><a href="function.explode.html" class="function" rel="rdfs-seeAlso">explode()</a></li> <li class="member"><a href="function.implode.html" class="function" rel="rdfs-seeAlso">implode()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.split.html">split</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sql-regcase.html">sql_regcase</a></div> <div class="up"><a href="ref.regex.html">POSIX Regex 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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