WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0

Check if a variable is an array

Check to see if a variable or value is of type array

$variable: Variable or expression to be evaluated

Integer: 1 (true) if array, 0 (false) if not an array

<?
  $x=1;
  print(is_array($x)); // outputs 0
  $y=array("one");
  print(is_array($y)); // outputs 1
?>

This function checks ONLY the type of the variable, not the data that it holds!

is_int() - Check if a variable is an integer

is_float() - Check if a variable is a float

is_string() - Check if a variable is a string

is_numeric() - Check if a value is numeric (int, float or numeric string)

isset() - Check if a variable exists

uPHP Variable Types and Limits

array() - Create an array, with optional values