PHP Subtract one array from another

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MrPhear 1 years, 5 months ago

For subtracting one array from another in PHP you can use array_diff() function.

So if you subtract array b from a

$a = array('1', '2', 'aaa', '3');
$b = array('3', '1', '2', 'bbb');

print_r(array_diff($a, $b));

You will get

Array('aaa')

and if you subtract a from b

$a = array('1', '2', 'aaa', '3');
$b = array('3', '1', '2', 'bbb');

print_r(array_diff($b, $a));

You will get

Array('bbb')

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