What potential pitfalls should be considered when using str_split() function in PHP with UTF-8 encoded characters?

When using the str_split() function in PHP with UTF-8 encoded characters, potential pitfalls include splitting characters incorrectly due to multi-byte characters being treated as individual bytes. To solve this issue, you can use the mb_str_split() function from the mbstring extension, which properly handles UTF-8 encoded strings by splitting them based on the number of characters rather than bytes. 

function mb_str_split($string) {
    return preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY);
}

$string = "UTF-8 encoded string";
$split_string = mb_str_split($string);

print_r($split_string);

Keywords

str_split UTF-8 characters multibyte encoding

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