Multiple words of string replace with str_replace in PHP

<?php
    ## Converting utf8 characters to iso-88591 manually in PHP
    echo "<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />";   
    function str_replace_char(){ 
        $find = array('“', '’', '…', 'â€"', 'â€"', '‘', 'é', 'Â', '•', 'Ëœ', 'â€'); // en dash
        $replace = array('"', '’', '…', '—', '–', '‘', 'é', '', '•', '˜', '"'); // original
        $new_str_content = str_replace( $find,$replace,$str_content);
        return $new_str_content;
    }
   
    $string = "It’s Getting the Best of Me";
    echo $new_string = str_replace_char($string);
?>