tryphp_func_var_gettype.php:
<!DOCTYPE html> <html> <body> <?php $a = 3; echo gettype($a) . "<br>"; $b = 3.2; echo gettype($b) . "<br>"; $c = "Hello"; echo gettype($c) . "<br>"; $d = array(); echo gettype($d) . "<br>"; $e = array("red", "green", "blue"); echo gettype($e) . "<br>"; $f = NULL; echo gettype($f) . "<br>"; $g = false; echo gettype($g) . "<br>"; ?> </body> </html>
integer
double
string
array
array
NULL
boolean