Validate Age

[pacchiee]

Hello,

 

I wanted to validate user input of age to be a number and range between 0 to 99. How do I do this?

 

Thanks in Advance!

[Jessica]

<?php
$num = intval($age);
if($num < 0 || $num > 99){
// not valid.
}
?>

[pocobueno1388]

Here is another way.

 

<?php

if (is_numeric($age) && $age >= 0 && $age < 100){
   echo "You entered a valid age.";
} else {
   echo "ERROR: Invalid Age";
}

?>

 

[pacchiee]

Thats worked great!

 

But I wanted it to be a whole number too.. please help.

[Jessica]

That's what intval does.

[pacchiee]

Hi Jesi,

 

But my code is still accepting and processing 22.5 years?? If user writes age as a decimal/fraction the error should be like "age should be a whole number". Me new to PHP.. so please...

[darkfreaks]

Edit: nvm

[Jessica]

darkfreaks, wtf? That will make 22.5 into 225.

 

pacchiee, using intval() will make 22.5 into 22. If you want to check and see if they've entered 22.5 you could use strpos to determine if they've entered a . in the number.

[pacchiee]

oh jesirose!

 

thats out of my current knowledge of PHP . am now able to validate age though not decimals, thanks a lot.

[darkfreaks]

hit topic solved then

[phpmo]

Also you can always use

floor($age);

To drop of any decimals and anything after.