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+--- Thread: Set a rule to validate decimal numbers (/showthread.php?tid=26564)
Set a rule to validate decimal numbers - El Forum - 01-17-2010
[eluser]oualid[/eluser]
Hi.
I am wondering how to set a rule to validate a decimal number.
For example longitude 64.72796 or latitude 20.85733.
/Oualid
Set a rule to validate decimal numbers - El Forum - 01-17-2010
[eluser]Phil Sturgeon[/eluser]
This should do the trick.
Code:
class MY_Form_Validation extends CI_Form_validation
{
function decimal($str)
{
return (bool)preg_match('/^[\-+]?[0-9]+\.[0-9]+$/', $str);
}
}Set a rule to validate decimal numbers - El Forum - 01-17-2010
[eluser]oualid[/eluser]
OK!
Tanks!
Set a rule to validate decimal numbers - El Forum - 01-17-2010
[eluser]theprodigy[/eluser]
Quote:return (bool)preg_match('/^[\-+]?[0-9]+\.[0-9]+$/', $str);
I'm not a regex expert, so I figured I would ask.
Is there a difference between that listed above and
Code:
return (bool)preg_match('/^[\-+]?\d+\.\d+$/', $str);Doesn't \d mean digit?
Set a rule to validate decimal numbers - El Forum - 01-18-2010
[eluser]Sean Gates[/eluser]
Yes, they are equivalent.