in_array

bool in_array(mixed $igla, array $tablica)

Returns true if $igla is found in $tablica, or false otherwise. Comparison is strict.

Example:

$tablica = array(2, 4, 6);
$x = 2;
if (in_array($x, $tablica)) {
print("Number ".$x." is in the set");
}

Result:

Number 2 is in the set