Php array_key_exists () instance tutorial

Php array_key_exists () instance tutorial array_key_exists
("= 4.0.7, PHP 5" in PHP 4)

Array_key_exists-Check if an array exists in the key or index is considered

Description
Boolean array_key_exists (mixed $ key, array $ search)
Array_key_exists () returns TRUE if the given key is to set the array. The key is that any value may be an index of an array.

Parameters

Key
Value Check.

Search
Array and key check.


Return Value
Returns TRUE or FALSE.

Modify

Version description
5.3.0 this function cannot be used with objects. property_exists () should be used in this case.


Instance

Example #1 array_key_exists ()