Interview Questions-PHP Laravel React

 This was the client round question for code challenge.. Create a PHP function to find the intersection of two arrays. <?php function FindIntersection ( $strArr ) {     // Split the strings into arrays and convert to integers     foreach ( $strArr as $index => $element ) {         $strArr [ $index ] =   array_map ( 'intval' , explode ( ',' , $element ));     }     $main_match_array = $strArr [ 0 ];     array_shift ( $strArr );     $interarray = [];     foreach ( $strArr as   $each_chunk ) {         foreach ( $main_match_array as $in => $number ) {             if ( in_array ( $number , $each_chunk )) {                 $interarray [ $number ] = $number ;             } else {                 unset ( $int...