PHP | chunk_split() Function

The chunk_split() function is a built-in function in PHP. The chunk_split() function is used to split a string into smaller chunks of specific length.

Syntax:

string chunk_split($string, $length, $end)

Parameters: This function accepts three parameters as shown in the above syntax and are described below:

$string: This parameter specifies a string which is needed to be chunked.
$length: This parameter specifies an integer which specifies the chunk length. That is the length of the chunked parts.
$end: This parameter specifies the line ending sequence.

Return value: This function returns the string spllited into smaller chunks.

Examples:

Input : string = "geeksforgeeks" 
        length = 4
        end = "."
Output: Geek.sfor.Geek.s. 


Input: string = "Twinkle bajaj" 
       length = 2 
       end = "*" 
Output: Tw*in*kl*e *ba*ja*j*

Below programs illustrate the chunk_split() function in PHP:

Program 1:

<?php 
// PHP program to illustrate the   
// chunk_split function  
  
$str = "Twinkle bajaj"; 
echo chunk_split($str, 2, "*"); 
  
?>  

Output:

Tw*in*kl*e *ba*ja*j*

Program 2:

<?php 
// PHP program to illustrate the   
// chunk_split function  
  
$str = "geeksforgeeks"; 
  
// Returns a string with a '.' 
// placed after every four characters. 
echo chunk_split($str, 4, "."); 
?>  

Output:

geek.sfor.geek.s.

Program 4:

<?php 
// PHP program to illustrate the   
// chunk_split function  
  
$str = "abcd"; 
echo chunk_split($str, 4, "@@"); 
?>  

Output:

abcd@@

Program 5:

<?php 
// PHP program to illustrate the   
// chunk_split function  
  
// If specified length is more than 
// string length, then added at the 
// end. 
$str = "abcd"; 
echo chunk_split($str, 10, "@@"); 
?>  

Output:

abcd@@

Reference:
http://php.net/manual/en/function.chunk-split.php

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