(PHP 5 >= 5.2.0, PHP 7)
array_fill_keys — Fill an array with values, specifying keys
array_fill_keys ( array $keys , mixed $value ) : array
Fills an array with the value of the value parameter, using the values of the keys array as keys.
keys
Array of values that will be used as keys. Illegal values for key will be converted to string.
value
Value to use for filling
Returns the filled array
Example #1 array_fill_keys() example
<?php
$keys = array('foo', 5, 10, 'bar');
$a = array_fill_keys($keys, 'banana');
print_r($a);
?> The above example will output:
Array
(
[foo] => banana
[5] => banana
[10] => banana
[bar] => banana
)
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https://www.php.net/manual/en/function.array-fill-keys.php