Online PHP editor | refs for apm6l

<?php $data = array( "28000000000000003" => 'ABC', "28000000000000001" => 'PQR' ); echo "1.".in_array("28000000000000003",array_keys($data),true); echo "2.".in_array("28000000000000003",array_keys($data)); echo "3.".in_array("28000000000000003",array("28000000000000003","28000000000000001"),true); echo "4.".in_array("28000000000000003",array("28000000000000003","28000000000000001"));