Hello, I'm new to PHP and getting started on Array Functions...
Whenever I try to execute the array_intersect_key() function
<?php
$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => ;
var_dump(array_intersect_key($array1, $array2));
?>
I get this error:
Fatal error: Call to undefined function array_intersect_key() in D:\Programmers\Caroline\array_pract3.php on line...
Can someone tell me why it is so - even with array_intersect_key being a valid PHP function? ???
TYIA,
Caroline