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PHP array_fill_keys() Function

PHP array_fill_keys() Function

Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP array_fill_keys() Function.

The PHP array_fill_keys() function fills an array with the value of the value parameter, using the values of the keys array as keys.


Following below is the syntax to use this function -

array array_fill_keys ( array $keys, mixed $value );

Parameter Details

Sr.NoParameter & Description


It is an array of values that will be used as keys



It may an string or an array of values

Return Value

It returns the filled array.


Try out the below example -

   $ = array('f1', 5, 10, 'b1');
   $a = array_fill_keys($input, 'banana');


When the above code is executed, it will produce the following result -

Array (
   [f1] => banana
   [5] => banana
   [10] => banana
   [b1] => banana

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP array_filter() Function.

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