Swap all keys with their corresponding values in an array.
| <?php $a1=array(“a”=>“red”,“b”=>“green”,“c”=>“blue”,“d”=>“yellow”); $result=array_flip($a1); print_r($result); ?> |
The array_flip() function swaps all keys with their corresponding values in an array.
| array_flip(array) |
|
Parameter |
Description |
|
array |
Required. Specifies an array of key-value pairs to be swapped. |
|
Return Value: |
Returns the flipped array on success, or NULL on failure. |
|
PHP Version: |
4+ |