Previous | Home | Next |
array_key_exists()
The array_key_exists() function checks an array for a specified key, and returns true if the key exists and false if the key does not exist.
Syntax:array_key_exists(key,array)
In above syntax,"key" specifies the key and "array" specifies an array
Example:
<?php $a=array("Apple"=>"fruit","Mango"); if (array_key_exists("Mango",$a)) { echo "Key exists!"; } else { echo "Key does not exist!"; } ?>
Output:
Previous | Home | Next |