Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] validating data validation dates failed, redisplaying form files pattern matching user input, JavaScript and values arrays adding looping through referencing forms, accessing in variables, PHP variables arrays, extracting from global, automatic PHP global scope static super global variables types values references scope, classes static |