[PHP] Little Help?

Okay,

I need some code where if a user puts in a "-" sign into the system, it wil bounce back with

Negative numbers are not allowed.


Ive tried both..

PHP Code:

---

<?php
if($bet = "-")
die('Cannot bet a negative number of credits...!<meta http-equiv="refresh" content="2;url=game_hl.php" /><br />You will be redirected!');
?>

---

And

PHP Code:

---

<?php
if(preg_match("-",$bet))
die('Cannot bet a negative number of credits...!<meta http-equiv="refresh" content="2;url=game_hl.php" /><br />You will be redirected!');
?>

---

Any ideas?

Moved by Agesilaus (Forum Moderator) from Designing and Development: Please post in the correct forum next time. :)

PHP Code:

---

<?php
if( eregi("-", $bet) )
{
    die('Cannot bet a negative number of credits...!<meta http-equiv="refresh" content="2;url=game_hl.php" /><br />You will be redirected!');
}
?>

---

Ooh ty, that works :)

+REP if i can.

Just use is_numeric

PHP Code:

---


if($bet == "-") die("Something"); 


---

lol..

You used = which is only an assignment operator in PHP. == is to compare

surely == would mean that the character ("-") is the only one in the field?

Quote:

---

Originally Posted by MrCraig

surely == would mean that the character ("-") is the only one in the field?

---

Correct.

There are loads of ways of doing it.

PHP Code:

---

if ($bet < '0'){
die('No negative bets!');
} 


---

Is a way of doing it.

Ooh, never thought of that :P

+REP =]

PHP Code:

---

<?php if($fetch->bet == "-"){
echo "Negative numbers are not allowed.";} ?>

---

Eh.

Whats with the $fetch-> ?

And surely that would mean that it would only echo the command if the only value in the field was a - sign.