The array_fill_keys() function fill an array with values, specifying keys. It returns the filled array.
Syntax
array_fill_keys(keys, values)
Parameters
keys − Array of values to be used as keys.
values − Values that would be used to fill.
Return
The array_fill_keys() function returns the filled array.
Example
<?php
$arr = array('p', 'q', 'r');
$res = array_fill_keys($arr, demo);
print_r($res)
?>
Output
Array ( [p] => demo [q] => demo [r] => demo )
Let us see another example.
Example
<?php
$arr = array('a', 'b', 'c', 1, 2, 3, 'steve', 'tom', 4, 5);
$res = array_fill_keys($arr, demo);
print_r($res)
?>
Output
Array ( [a] => demo [b] => demo [c] => demo [1] => demo [2] => demo [3] => demo [steve] => demo [tom] => demo [4] => demo [5] => demo )