PHP array_combine() Function

PHP array_combine() Function

The array_combine() function in PHP is used to create an array by combining two arrays i.e., one array for keys and another array for its values.

Syntax

array_combine ( array $keys , array $values )

Parameter

keys(required)- This parameter represents an array which acts as keys for the new array.

values(required)- This parameter signifies an array which acts as values for the new array.

Return

This function returns the combined array if the number of elements for each array is equal else it returns FALSE.

Errors/Exception

This function throws an E_WARNING if the number of elements in keys and values does not match.

Example 1

Output

Array 1: 
 array(3) {
   [0]=>
   string(4) "Pink"
   [1]=>
   string(3) "red"
   [2]=> 
   string(5) "Apple"
   [2]=>
   string(5) "Mango"
 }
 Combined Array: 
 Array 
 (
     [Pink] => Strawberry
     [red] => Apple
     [yellow] => Mango
 ) 

Example 2

Output

Array
 (
     [1] => PHP
     [2] => Java
     [3] => Python
     [4] => C#
 ) 

Example 3

Output

PHP Warning:  array_combine(): Both parameters should have an equal number of elements in /workspace/Main.php on line 4