Explode string with multiple delimiters

explode.php

<?php
     /**
     * Explode with multiple delimiters
     * @param  array  $delimiters 
     * @param  string $string
     * @return array
     */
    function explodeX(array $delimiters, string $string )
    {
        return  explode( chr( 1 ), str_replace( $delimiters, chr( 1 ), $string ) );
    }

$string = "banana,apple:orange-salad";
var_dump(explodeX([':', ',', '-'], $string) );
// result: 
// array(4) {
//   [0]=>
//   string(6) "banana"
//   [1]=>
//   string(5) "apple"
//   [2]=>
//   string(6) "orange"
//   [3]=>
//   string(5) "salad"
// }

I've tried and getting an Fatal error. Refer to the log message below:

PHP Catchable fatal error: Argument 2 passed to explodeX() must be an instance of string, string given, called in test.php on line 16 and defined in test.php on line 10

update your script.