I've seen some code written like this, and I'm really curious what it does and what it's for. Sorry for the unclear title, I appreciate all answers!
Edit: In particular I'm curious about the (string) $variable part
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2 Answers
It's called type casting
Type casting in PHP works much as it does in C: the name of the desired type is written in parentheses before the variable which is to be cast.
<?php
$foo = 10; // $foo is an integer
$bar = (boolean) $foo; // $bar is a boolean
?>
The casts allowed are:
(int), (integer) - cast to integer
(bool), (boolean) - cast to boolean
(float), (double), (real) - cast to float
(string) - cast to string
(array) - cast to array
(object) - cast to object
(unset) - cast to NULL (PHP 5)
In your specific example a variable was being cast to a string before being passed as a parameter to testFunction()
1 Comment
Steve Bauman
Awesome thanks! I tried searching in google for a long while, but when you don't know exactly what to search, it's difficult to find. I'll accept this as the answer once the wait window is up.
It is a function call with an argument. In this case, a variable $variable has been cast to a string for the argument.
