PHP: Count occurrences of a character in a String in PHP

<?php

$text="Welcome to PHP";
$searchchar="e";
$count="0"; //zero

for($i="0"; $i<strlen($text); $i=$i+1){
    
    if(substr($text,$i,1)==$searchchar){
    
       $count=$count+1;
    }

}

echo $count

?>

This will count how many times the character "e" occurs in that text (Welcome to PHP).