w3resource

PHP: str_split() function

Description

The str_split() function is used to convert a string to an array.

Version:

(PHP 5 )

Syntax:

str_split(string_name, split_length)

Parameters:

Name Description Required /
Optional 		Type
string_name The string to be split. Required String
split_length The length of the chunk. Optional Integer

Return value:

If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise, each chunk will be one character in length.
FALSE is returned if split_length is less than 1.
If the split_length length exceeds the length of the string, the entire string is returned as the first (and only) array element.

Value Type: Array.

Pictorial Presentation

php-string-str_split()

Example: 

<?php
$string_name='Welcome to w3resource.com';
print_r(str_split($string_name));
echo '<br>';
print_r(str_split($string_name,4));
echo '<br>';
?>

Output:

Array  (      [0] => W      [1] => e      [2] => l      [3] => c      [4] => o      [5] => m      [6] => e      [7] =>        [8] => t      [9] => o      [10] =>        [11] => w      [12] => 3      [13] => r      [14] => e      [15] => s      [16] => o      [17] => u      [18] => r      [19] => c      [20] => e      [21] => .      [22] => c      [23] => o      [24] => m  ) 
Array  (      [0] => Welc      [1] => ome       [2] => to w      [3] => 3res      [4] => ourc      [5] => e.co      [6] => m  )

View the example in the browser

See also

PHP Function Reference

Previous: str_shuffle
Next: str_word_count



PHP: Tips of the Day

PHP: Using str_replace so that it only acts on the first match?

Can be done with preg_replace: 

function str_replace_first($from, $to, $content)
{
    $from = '/'.preg_quote($from, '/').'/';

    return preg_replace($from, $to, $content, 1);
}

echo str_replace_first('abc', '123', 'abcdef abcdef abcdef'); 
// outputs '123def abcdef abcdef'

The magic is in the optional fourth parameter [Limit]. From the documentation:

[Limit] - The maximum possible replacements for each pattern in each subject string. Defaults to -1 (no limit).

Ref : https://bit.ly/35SCuP8