note 76391 deleted from function.array-diff by cmb
| From: | cmb@php.net | Date: | Sun, 17 Mar 2019 09:38:41 +0000 |
| Subject: | note 76391 deleted from function.array-diff by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-210389@lists.php.net to get a copy of this message | ||
Note Submitter: mr dot kschan at gmail dot com
----
just comment ... i don't know whether the following implementation of array_diff is having a
much better meaning to the function name.
function ary_diff( $ary_1, $ary_2 ) {
// compare the value of 2 array
// get differences that in ary_1 but not in ary_2
// get difference that in ary_2 but not in ary_1
// return the unique difference between value of 2 array
$diff = array();
// get differences that in ary_1 but not in ary_2
foreach ( $ary_1 as $v1 ) {
$flag = 0;
foreach ( $ary_2 as $v2 ) {
$flag |= ( $v1 == $v2 );
if ( $flag ) break;
}
if ( !$flag ) array_push( $diff, $v1 );
}
// get difference that in ary_2 but not in ary_1
foreach ( $ary_2 as $v2 ) {
$flag = 0;
foreach ( $ary_1 as $v1 ) {
$flag |= ( $v1 == $v2 );
if ( $flag ) break;
}
if ( !$flag && !in_array( $v2, $diff ) ) array_push( $diff, $v2 );
}
return $diff;
}
i think array_diff should return the difference between the array independent of the order of
passing the parameter.