How to convert string to an array in PHP?

The str_split function used to partition of the string into equal length. Then the string part becomes an array element. The array element contains the remaining end string.

$str1 = 'abcdefghijklmnopqrstuvwxyzpq';
$split1 = str_split($str1, 5);
print_r($split1);

OUTPUT of the following code

• [0] = abcde
• [1] = fghij
• [2] = klmno
• [3] = pqrst
• [4] = uvwxy
• [5] = zpq