$array1 = array('abc', 'efg', 'hij', 'klm', 'nop', 'qrs');
$array2 = array('tuv', 'abc', 'wxyz', 'qrs', 'hij');
// Find intersection
$intersection = array_intersect($array1, $array2);
echo '<pre>'.print_r($intersection, true).'</pre>';
/* output:
Array
(
[0] => abc
[2] => hij
[5] => qrs
)
*/
// Extract
if(!empty($intersection)){
foreach ($intersection as $key => $value) {
unset($$array1[$key]);
}
}
echo '<pre>'.print_r($array1, true).'</pre>';
/* output:
Array
(
[1] => efg
[3] => klm
[4] => nop
)
*/
Refer site:
Unset - http://sg2.php.net/manual/en/function.unset.php
Array intersect - http://php.net/manual/en/function.array-intersect.php
