What is the function to split string in php-PHP Problem-php.cn

What is the function to split string in php

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Release： 2023-02-25 20:24:01

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php functions to split strings include explode() and str_split()

##explode()

This function is the inverse function of implode(). It uses one string to split another string and returns an array.

Grammar: (Recommended learning: PHP video tutorial)

array explode( string separator, string string [, int limit] )<br/>

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Example:

<?php<br/>$str = &#39;one|two|three|four&#39;;<br/>print_r(explode(&#39;|&#39;, $str));<br/>print_r(explode(&#39;|&#39;, $str, 2));<br/>// 负数的 limit（自 PHP 5.1 起）<br/>print_r(explode(&#39;|&#39;, $str, -1));<br/>?><br/>

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The output results are as follows:

Array<br/>(<br/>    [0] => one<br/>    [1] => two<br/>    [2] => three<br/>    [3] => four<br/>)<br/>Array<br/>(<br/>    [0] => one<br/>    [1] => two|three|four<br/>)<br/>Array<br/>(<br/>    [0] => one<br/>    [1] => two<br/>    [2] => three<br/>)<br/>

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str_split()

str_split() splits the string into an array and returns an array successfully.

Syntax:

array str_split( string string [, int length] )<br/>

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Example:

<?php<br/>$str = &#39;one two three&#39;;<br/>$arr1 = str_split($str);<br/>$arr2 = str_split($str, 3);<br/>print_r($arr1);<br/>print_r($arr2);<br/>?><br/>

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The output is as follows:

Array<br/>(<br/>    [0] => o<br/>    [1] => n<br/>    [2] => e<br/>    [3] =>  <br/>    [4] => t<br/>    [5] => w<br/>    [6] => o<br/>    [7] =>  <br/>    [8] => t<br/>    [9] => h<br/>    [10] => r<br/>    [11] => e<br/>    [12] => e<br/>)<br/>Array<br/>(<br/>    [0] => one<br/>    [1] =>  tw<br/>    [2] => o t<br/>    [3] => hre<br/>    [4] => e<br/>)<br/>

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