Check if value of an array is present in another array

Question

I am trying to check if value of an array $spam is present in array $get_mail. I have following code, but it doesnt seem to work or I dont understand it properly.

$spam_exists = !array_diff($spam, $get_mail);

if ($spam_exists !== FALSE) { ... }

Any idea why this doesnt work? Thank you for any reply.

Alexandre Elshobokshy · Accepted Answer · 2019-01-25 09:06:24Z

1

Use the array_intersect function.

$result = array_intersect($spam, $get_mail);

Which will return the values in both arrays as an array, or an empty array if there are no shared results.

So rather than using !array_diff($X,$Y) you could use !empty(array_intersect($X,$Y)) or simply if(array_intersect($X,$Y))

edited Jan 25, 2019 at 9:06

answered Jan 25, 2019 at 9:01

Alexandre Elshobokshy

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