Mean | Function for calculating mean ; Driver Code
< ? php function findMean ( & $ a , $ n ) { $ sum = 0 ; for ( $ i = 0 ; $ i < $ n ; $ i ++ ) $ sum += $ a [ $ i ] ; return ( double ) $ sum / ( double ) $ n ; } $ a = array ( 1 , 3 , 4 , 2 , 7 , 5 , 8 , 6 ) ; $ n = sizeof ( $ a ) ; echo " Mean ▁ = ▁ " . findMean ( $ a , $ n ) . " STRNEWLINE " ; ? >