I've written this code:
<?php
$aArray = array
(
array(0,0,0),
array(1,0,0),
array(2,0,0),
array(3,0,0),
array(4,0,0),
array(5,0,0),
array(6,0,0),
array(7,0,0)
);
$jump = array
(
array(0,0,0),
array(1,0,0),
array(9,7,4),
array(3,0,0),
array(4,0,0),
array(5,0,0),
array(6,0,0),
array(7,0,0)
);
$result = array_intersect($aArray, $jump);
echo var_dump($result);
the result I'm getting is this:
array(8) {
[0]=> array(3) {
[0]=> int(0)
[1]=> int(0)
[2]=> int(0) }
[1]=> array(3) {
[0]=> int(1)
[1]=> int(0)
[2]=> int(0) }
[2]=> array(3) {
[0]=> int(2)
[1]=> int(0)
[2]=> int(0) }
[3]=> array(3) {
[0]=> int(3)
[1]=> int(0)
[2]=> int(0) }
[4]=> array(3) {
[0]=> int(4)
[1]=> int(0)
[2]=> int(0) }
[5]=> array(3) {
[0]=> int(5)
[1]=> int(0)
[2]=> int(0) }
[6]=> array(3) {
[0]=> int(6)
[1]=> int(0)
[2]=> int(0) }
[7]=> array(3) {
[0]=> int(7)
[1]=> int(0)
[2]=> int(0) }
}
why isn't the second index returning null? I've tried emptying my cache in case it had old values stored in there. I've also noticed that if I delete the last array from the jump array, it still produces 7,0,0. Is this a weird anomaly?
array_intersect() is not recursive, it sees the inner arrays as just an array. You would need to use something like this:
function array_intersect_recursive() {
foreach(func_get_args() as $arg) {
$args[] = array_map('serialize', $arg);
}
$result = call_user_func_array('array_intersect', $args);
return array_map('unserialize', $result);
}
$result = array_intersect_recursive($aArray, $jump);
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