New Iterator iterating characters in a PHP string. Multibyte characters are not supported PHP >= 5.4
<?php
var_dump(iterator_to_array(new CharIterator('foobarbaz')));
/*
array(9) {
[0]=>
string(1) "f"
[1]=>
string(1) "o"
[2]=>
string(1) "o"
[3]=>
string(1) "b"
[4]=>
string(1) "a"
[5]=>
string(1) "r"
[6]=>
string(1) "b"
[7]=>
string(1) "a"
[8]=>
string(1) "z"
}
*/Chunk size is supported :
<?php
var_dump(iterator_to_array(new CharIterator('foobarbaz', 3)));
/*
array(3) {
[0]=>
string(3) "foo"
[1]=>
string(3) "bar"
[2]=>
string(3) "baz"
}
*/