Accessing a Global Variable from Within a Function : Definition « Functions « PHP

Accessing a Global Variable from Within a Function

  $GLOBALS['user'] = "myusername";
  $GLOBALS['pass'] = "mypassword";
  function validatelogin ($username, $password){
    if (strcmp ($username, $GLOBALS['user']) == 0 && strcmp ($password, $GLOBALS['pass']) == 0){
      return true;
    } else {
      return false;
  if (validatelogin ("myusername","mypassword")){
    echo "You are logged in correctly";
  } else {
    echo "You have an incorrect username and/or password";

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