PHP splits a string into a series of smaller parts using the chunk_split() function

Example

Split the string once after each characterString, and add "." after each split:

<?php
$str = "Hello world!";
echo chunk_split($str,1,".");
?>

Definition and usage

chunk_split() function splits a string into a series of smaller parts.

Note: This function does not change the original string.

Syntax

chunk_split(string,length,end)

Parameters	Description
string	Required. Specifies the string to be split.
length	Optional. A number defining the length of the string block. Default is 76.
end	Optional. A string defining what is placed after each string block. Default is \r\n.

Technical details

Return value:	Returns the split string.
PHP version:	4+

##More examples

Example 1

Split the string after every six characters, and add "..." after each split:

<?php
$str = "Hello world!";
echo chunk_split($str,6,"...");
?>

Example: Support wide character splitting, (Split the string into a series of smaller parts)

<?php  
/** 
 * 分割字符串  
 * @param String $str  要分割的字符串  
 * @param int $length  指定的长度  
 * @param String $end  在分割后的字符串块追加的内容  
 */  
function mb_chunk_split($string, $length, $end, $once = false){  
    $string = iconv(&#39;gb2312&#39;, &#39;utf-8//ignore&#39;, $string);  
    $array = array();  
    $strlen = mb_strlen($string);  
    while($strlen){  
        $array[] = mb_substr($string, 0, $length, "utf-8");  
        if($once)  
            return $array[0] . $end;  
        $string = mb_substr($string, $length, $strlen, "utf-8");  
        $strlen = mb_strlen($string);  
    }  
    return implode($end, $array);  
}   
  
$str = &#39;s六一马上$就dfs要到$@#了&#39;;  
$str1 = &#39;aabbccddeefff&#39;;  
echo mb_chunk_split($str, 3, &#39;...&#39;, true); //s六一...马上$...就df...s要到...$@#...了    
echo "<br>";  
echo mb_chunk_split($str1, 2, &#39;...&#39;); //aa...bb...cc...dd...ee...ff...f

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