PHP array_fill_keys() Function

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

Syntax

array_fill_keys ( array $keys , mixed $value )

Parameter

keys(required)- This parameter signifies the input array of values that will be used as keys. All the illegal values for the key will be converted to a string.

values(required)- This parameter signifies the value to use for filling.

Return

This function returns the filled array containing the value of the specified value parameter, using the values of the specified keys array as keys.

Example 1

Output

Array
 (
  [a] => Reema
  [1] => Reema
  [20] => Reema
  [b] => Reema
 ) 

Example 2

Output

Array
 (
  [a] => India
  [b] => India
  [c] => India
  [d] => India
 ) 

Example 3

Output

 Array
 (
  [Foo] => Array
  (
  [0] => Reema
  [1] => 10
  )
 
  [Employee] => Array
  (
  [0] => Reema
  [1] => 10
  )
 
  [45] => Array
  (
  [0] => Reema
  [1] => 10
  )
 
  [ ] => Array
  (
  [0] => Reema
  [1] => 10
  )
 
 )