key = array_key_last ($input_array);
| Parameter | DESCRIPTION |
|---|
| $input_array | Required : Input array for which last key is to be returned. |
arrays_key_last() function returns the last key of the array. If the array is empty then NULL is returned.
PHP 7.3.0 Supported by PHP 7.3.0 and above
Example 1
$input=array(1,2,3,4,5);
echo array_key_last($input);
Output is here
4
Note that the first key is 0 , so the last key in above code is 4
Example 2
$input=array('One' =>'First','Two'=>'Second','Three'=>'Third','Fourth');
echo var_dump(array_key_last($input));
The output is here
int(0)
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