PHP str_split() Function – Convert a String to an Array

The PHP str_split() function converts a string into an array of substrings.

It accepts two parameters: string – the input string, and optional split_length – the length of each segment (default 1). If split_length is less than 1, the function returns FALSE; if it exceeds the string length, the entire string is returned as a single array element.

The function returns an array where each element contains a chunk of the original string, either a single character or a block of the specified length.

Example usage:

<?php
$str = "Hello Friend";
$arr1 = str_split($str);
$arr2 = str_split($str, 3);
print_r($arr1);
print_r($arr2);
?>

Output:

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
)