[SOLVED] form help

[darkfreaks]

okay so i have used is_numeric() to make sure everything entered is only numbers however i have a slight problem if i enter 0.0 it just strips the dot and acts like i entered a whole number. how would i make it detect dots and then echo out "you cannot enter dots"  ???

[Mchl]

0.0 is a valid number. Try is_int

[darkfreaks]

can you give me an example please ???

 

seems when i type is int() it returns true and doesn't work and when i do NOT is_int() it gives me "only numbers allowed" even when i type 12345 :-X

[Maq]

How are you using is_numeric?

 

This returns true for me.

 

if(is_numeric(0.0)) {
   echo "true";
} else {
   echo "false";
}

?>

[mrMarcus]

How are you using is_numeric?

 

This returns true for me.

 

<?php

if(is_numeric(0.0)) {
   echo "true";
} else {
   echo "false";
}

?>

that will because it is true .. is_numeric is not checking for integer values .. it's simply checking if the value/string in question is a number/numeric.

 

is_int() will check if the value/string is an integer and return true/false .. 0.0 will return false on and is_int() check.

[darkfreaks]

im doing something like :

<?php
if(!is_int($_POST['height)) { 
}?>

 

and:

<?php
if(is_int($_POST['height)) { 
}?>

 

o0ps yeah your right is_int() not numeric

 

anyhow 0.0 returns false because of the dot right? thats what i dont want to allow. however if i type 12345 i still get  "numbers only allowed" which telling me its still returning false :-\

[mrMarcus]

<?php
if(is_int($_POST[height)) { 
}?>

check your round bracket by $_POST[height)

[mrMarcus]

im doing something like :

<?php
if(!is_int($_POST['height)) { 
}?>

 

and:

<?php
if(is_int($_POST['height)) { 
}?>

 

o0ps yeah your right is_int() not numeric

 

anyhow 0.0 returns false because of the dot right? thats what i dont want to allow. however if i type 12345 i still get  "numbers only allowed" which telling me its still returning false :-\

typing 12345 will return true on an is_int() check .. typing '12345' will return false.  12345 cannot be treated as a string.  refer to my previous post though, and correct the syntax.

[darkfreaks]

not on my end sorry probably a typo copying it over

 

and is there a better solution then is_int this is not going to work. :-X

[Maq]

You're going to have to check multiple things.  Use this function:

 

function is_int_val($data) {
if (is_int($data) === true) return true;
elseif (is_string($data) === true && is_numeric($data) === true) {
   return (strpos($data, '.') === false);
}
   return false;
}

[darkfreaks]

that function is messing up my form it only returns "you are obese"

 

is there another way i could implement this ???

 

maybe instead of returning true or false to maybe echo "you cant enter dots"

 

i really dont understand the return part anyhow ???

[Maq]

if(!is_int_val($_POST[height)) {
   // If it IS NOT an integer
} else {
   // If it IS an integer
}

[Mchl]

Remember that all $_POST values are strings. That's why is_int() fails on this check. My bad.

[Maq]

It's better to use the function I gave you because it uses a variety of data type check to see what's what.  Because you actually want a string that only has digits in it, or an (int) data type.