count_chars (PHP 4, PHP 5, PHP 7, PHP 8) Count_Chars возвращает информацию о символах, используемых в строке
<?php
$data = "Two Ts and one F.";
foreach (count_chars($data, 1) as $i => $val) {
echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n";
}
?>
SAMER SAEID