如何删除数组中的元素数组

Question

I have two array. I want to remove if 2nd array exists in 1st array. For example

array1 = array ("apple","banana","papaya","watermelon","avocado");
array2 = array ("apple","avocado");

I want the output should be

Array ( [1] => banana [2] => papaya [3] => watermelon)

Here are some code that I'd tried.

foreach($array2 as $key){
    $keyToDelete = array_search($key, $array1);
    unset($array1[$keyToDelete]);
}
print_r($array1);

but the output is

Array ( [1] => banana [2] => papaya [3] => watermelon [4] =>avocado )

It only remove first element.

i also tried to do something like this

$result = array_diff($array1,$array2);
print_r($result);

but the output is it print all element in array1

Noted: I want the result need to be outside foreach loop

Answer 1

array_diff should be work.

<?php

$array1 = array ("apple","banana","papaya","watermelon","avocado");
$array2 = array ("apple","avocado");

$array_diff = array_diff($array1, $array2);

print_r($array_diff);

?>

DEMO

output will be.

Array ( [1] => banana [2] => papaya [3] => watermelon)

You can also try below solution. result will be same.. using in_array Check if first array value not in the second tester that value in the new array 'final_result' for results.

in_array support (PHP 4, PHP 5, PHP 7)

$array1 = array ("apple","banana","papaya","watermelon","avocado");
$array2 = array ("apple","avocado");

$final_result = array();
foreach($array1 as $value){

    if(!in_array($value, $array2)){

        $final_result[] = $value;
    }

}

print_r($final_result);

?>

DEMO