Re: variable type - conversion/checking

On Thu, Mar 14, 2013 at 11:44 PM, Jim Lucas <lists@cmsws.com> wrote: > On 03/14/2013 11:50 AM, Samuel Lopes Grigolato wrote: > >> Something like "if (is_numeric($var)&& $var == floor($var))" will do the >> >> trick. I don't know if there's a better (more elegant) way. >> >> >> On Thu, Mar 14, 2013 at 3:09 PM, Matijn Woudt<tijnema@gmail.com> wrote: >> >> On Thu, Mar 14, 2013 at 7:02 PM, georg<georg.chambert@telia.com**> >>> wrote: >>> >>> Hi, >>>> >>>> I have tried to find a way to check if a character string is possible to >>>> test whether it is convertible to an intger ! >>>> >>>> any suggestion ? >>>> >>>> BR georg >>>> >>> >>> >>> You could use is_numeric for that, though it also accepts floats. >>> >>> - Matijn >>> >>> >> > for that type of test I have always used this: > > if ( $val == (int)$val ) { > > http://www.php.net/manual/en/**language.types.integer.php#** > > language.types.integer.casting<http://www.php.net/manual/en/language.types.integer.php#language.types.integer.casting> > > I hope you're not serious about this... When comparing a string and an int, PHP will translate the string to int too, and of course they will always be equal then. So: $a = "abc"; if($a == (int)$a) echo "YES"; else echo "NO"; Will always return YES. - Matijn