Return the key of the element at the current internal pointer position in the array.
| <?php $people=array(“Peter”,“Joe”,“Glenn”,“Cleveland”); echo “The key from the current position is: “ . key($people); ?> |
The key() function returns the key of the element at the current internal pointer position.
It returns FALSE on error.
| key(array) |
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Parameter |
Description |
|
array |
Required. Specifies the array to use. |
|
Return Value: |
Returns the key of the array element currently pointed to by the internal pointer. |
|
PHP Version: |
4+ |