[SOLVED] changing data type

[hasanatkazmi]

I want to change data type of some variable, if it would be C++. following would be the code

 

int $var;

$var=int($str);

 

i have two questions, how to declare $var as int in PHP, secondly how to cast a variable  like () in PHP

[BlueSkyIS]

how to declare $var as int in PHP: you don't.

 

secondly how to cast a variable  like () in PHP:

 

if you want the integer value of a string, use intval($string). If you need to determine if a value is a number, you can use is_numeric().

 

to test whether a value is an integer, I use

 

if (intval($string) == $string) {}

 

 

[dbo]

Yeah PHP is a loosely typed language. All of the following is acceptable but would not work in c/c++ without some trickery.

 

$var = 1;

$var = 1.1;

$var = "Bob";

 

If you tried to write that code in c/c++ you'd get some nasty errors.

[trq]

<?php

  $str = "12";
  $var = (int) $str;

?>