function.str-split.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>Convert a string to an array</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.str-shuffle.html">str_shuffle</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.str-word-count.html">str_word_count</a></div> <div class="up"><a href="ref.strings.html">String Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.str-split" class="refentry"> <div class="refnamediv"> <h1 class="refname">str_split</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">str_split</span> — <span class="dc-title">Convert a string to an array</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>str_split</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$string</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$split_length</tt></span> ] )</div> <p class="para rdfs-comment"> Converts a string to an array. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <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">split_length</tt></i></span> <dd> <p class="para"> Maximum length of the chunk. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> If the optional <i><tt class="parameter">split_length</tt></i> parameter is specified, the returned array will be broken down into chunks with each being <i><tt class="parameter">split_length</tt></i> in length, otherwise each chunk will be one character in length. </p> <p class="para"> <b><tt>FALSE</tt></b> is returned if <i><tt class="parameter">split_length</tt></i> is less than 1. If the <i><tt class="parameter">split_length</tt></i> length exceeds the length of <i><tt class="parameter">string</tt></i>, the entire string is returned as the first (and only) array element. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Example uses of <b>str_split()</b></b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"Hello Friend"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$arr1 </span><span style="color: #007700">= </span><span style="color: #0000BB">str_split</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$arr2 </span><span style="color: #007700">= </span><span style="color: #0000BB">str_split</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr2</span><span style="color: #007700">);<br /><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] => H [1] => e [2] => l [3] => l [4] => o [5] => [6] => F [7] => r [8] => i [9] => e [10] => n [11] => d)Array( [0] => Hel [1] => lo [2] => Fri [3] => end)</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.chunk-split.html" class="function" rel="rdfs-seeAlso">chunk_split()</a></li> <li class="member"><a href="function.preg-split.html" class="function" rel="rdfs-seeAlso">preg_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.count-chars.html" class="function" rel="rdfs-seeAlso">count_chars()</a></li> <li class="member"><a href="function.str-word-count.html" class="function" rel="rdfs-seeAlso">str_word_count()</a></li> <li class="member"><a href="control-structures.for.html" class="link">for</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.str-shuffle.html">str_shuffle</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.str-word-count.html">str_word_count</a></div> <div class="up"><a href="ref.strings.html">String 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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