Category: PHP

Self-tutoring about PHP: the tutor mentions its exponent operator. In PHP, 32 is 3**2. This seems to work unless the base is negative. For instance, 2.6**2.9 and 10**(-2/3) will come out correctly, but (-8)**(1/3) won’t, in my experience. Source: php.net

Self-tutoring about PHP: the tutor mentions an idea about PHP global. Consider the file $var1=”hello”; function f1(){ echo $var1; } f1(); //call f1 In the code above, with almost any programming language I know of, $var1 has value “hello” in …

Php: the global keyword Read more »

Self-tutoring about PHP: the tutor looks into the hazard of register_globals. In PHP, register_globals, when set to 1 (or on), could allow variables to be created and set from within web requests. In particular, if a variable was uninitialized in …

Computer science: PHP: the register_globals phenomenon Read more »