How to get the position of a letter in a string from starting when the string is shuffling in PHP?

shuffling in php

<!DOCTYPE html>

$string="I love php, I love php too!"; //string in which we have to search the letter
$find="o";  //letter to find
$str_change= ltrim(str_shuffle("I love php, I love php too!")); //ltrim remove the whitespace from left, where str_shuffle shuffles the string 
echo $str_change."<br>";
$split=str_split($str_change); //str_split splits the strings into array
foreach($split as $sp){

    echo "POSITION: ".$postion=$a +1;



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