EbinPaulose EbinPaulose -3 years ago 114
PHP Question

How check any value of array exist in another array php?

I have two array

$a = array('a','b');
$b = array('a','1','2','3','4');

How to checks any value of array $a exists in array $b without using loop?

Answer Source
if (count(array_intersect($array1, $array2)) === 0) {
  // No values from array1 are in array 2
} else {
  // There is at least one value from array1 present in array2


Probably worth nothing that, in all likelihood, under the hood, a loop is used.

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