[SOLVED] Why isn't my $_POST less than working...?

[Alexhoward]

Hi Guys,

 

sure i'm doing something stupid here.

 

so, i've got a form :

 

for example :

<form method='post' action='page2'>
<input type='text' name='amount' value='0.00' style='width: 60px'>
</form>

 

the user enters an amount

 

then i pick it up :

 

<?php
if($_POST['amount'] < 5 ) {
this
}
else {
this
}
?>

 

but it doesn't seem to matter what amount i put in it always thinks it less than 5...?

 

could anyone help me?

 

Thanks in advance!

[Andy-H]

Hi Guys,

 

sure i'm doing something stupid here.

 

so, i've got a form :

 

for example :

<form method='post' action='page2'>
<input type='text' name='amount' value='0.00' style='width: 60px'>
</form>

 

the user enters an amount

 

then i pick it up :

 

<?php
if(floatval($_POST['amount'])) < 5 ) {
this
}
else {
this
}
?>

 

but it doesn't seem to matter what amount i put in it always thinks it less than 5...?

 

could anyone help me?

 

Thanks in advance!

 

Try that? Duno if it will work...

[Maq]

Echo $_POST['amount'] out to make sure it has the right value.  Also put error checking on.  Add this on the top of your script:

 

ini_set ("display_errors", "1");
error_reporting(E_ALL);

[Shaun]

Could it be that <input type='text' name='amount' value='0.00' style='width: 60px'> is actually sending 0.00?

Have you tried <input type='text' name='amount' value='' style='width: 60px'> ?

 

just a thought...

[JasonLewis]

What? That should be giving you a parse error. And why is your forms action to a page with no extension?

[Maq]

Like project said:

 

</pre>
<form method="'post'" action="'page2.php'">

<

 

You should really post the full amount of code.

[.josh]

Could it be that <input type='text' name='amount' value='0.00' style='width: 60px'> is actually sending 0.00?

Have you tried <input type='text' name='amount' value='' style='width: 60px'> ?

 

just a thought...

 

having something in the value attribute simply assigns a default.  If the user enters something into the form it will overwrite it.

[Alexhoward]

Hi Guys,

 

Thanks for the feedback

 

the code above above is just an example...

 

i've echoed the post an it's coming back fine, as in whatever you type in..

 

the floatval made no difference... but thanks that's something i didn't know

 

i've tried it without the value='0.00' ... no difference

 

is it something to do with the way i'm saying :

 

if($_POST['amount'] < 5 )

[.josh]

This works just fine:

 

<?php 
if ($_POST['amount'] < 5) {
  echo "less than 5";
} else {
  echo "more than 5";
}
?>

<form method='post' action=''>
<input type='text' name='amount' value='0.00' style='width: 60px'>
<input type='submit' value='submit'>
</form>

 

You're going to have to show your actual code not just some example.

[JasonLewis]

Maybe post the actual code instead of an example. (Yeah, what CV said.)

[Alexhoward]

Hi Guys,

 

Think I've sorted it...

 

I was running a redirect if the amount was less than 5 to bring up an error message,

 

don't think i had it quite right in the IF statment, so whatever the out come it would always redirect with the error.

 

sorry to waste your time, you know how it gets starting at code for too long

 

 

Thankyou all for your input!

 

apologies again

[Alexhoward]

No Wait!

 

it wasn't that...!!

 

i'd commented out the real_escape_string!

 

so how can i protect myself if i can't use real escape....?!?

[.josh]

You can use it just fine.  You probably aren't using it right.  Or something else is wrong with your code.  Again, post your code.  Seriously, doesn't it make sense that if you want help with code, to post the code?

[LemonInflux]

<?php 
if ((int) $_POST['amount'] < 5) {
  echo "less than 5";
} else {
  echo "more than 5";
}
?>

 

----------------

Now playing: Elbow - An Audience With the Pope

via FoxyTunes

[.josh]

<?php 
if ((int) $_POST['amount'] < 5) {
  echo "less than 5";
} else {
  echo "more than 5";
}
?>

 

----------------

Now playing: Elbow - An Audience With the Pope

via FoxyTunes

 

Yeah that works awesome if the expected value is supposed to be an int.  But I have a sneaking suspicion that since his default is a float...

[Alexhoward]

OK,

 

it's just stuck in a load of other code,

 

so i'll just pull out the bits that are relevant :

 

input page

<form method='post' action='adamount.php'>
<td>
Please enter the required amount * : £ <input type='text' name='amount' value='0.00' style='width: 60px'> $error
</td>
<tr>
<td align='right'>
<input type='submit' name='go' value='Submit' />
</td>
</tr>
</form>

 

and the adamount.php page :

<?php

//$_POST['amount'] = mysql_real_escape_string($_POST['amount']);

//check amount over £5 has been entered
if($_POST['amount'] < 5 ) {
header( 'Location: http://www.mysite.co.uk/folder1/folder2/inputpage.php?error=1' ) ;
exit;
}

else {

some code here

?>

[LemonInflux]

oh yeah. sorry, it's been a long week.

 

----------------

Now playing: Elbow - An Audience With the Pope

via FoxyTunes

[.josh]

Alex:

 

So you're saying that no matter what, you are being directed to that header location?  Are you sure it's that one, and not maybe some other header in your code, or something?  Because there is no reason why that condition should evaluate true if you enter in something > 5

[Alexhoward]

Hi,

 

As i've just realised, it all works fine with the real_escape commented out

 

however, i obviously want to protect against sql injection and the like

 

but when i turn it on it doesn't work anymore....

 

any ideas...?

 

thanks for all this

[Andy-H]

floatval()

[Alexhoward]

That isn't working mate...???

[Alexhoward]

Sorted

 

It was because i was doing the real_escape thing before connecting to the database and it didn't like that...

 

 

so moved it and it works now

 

thanks for all your help guys!