[PHP] Little Help?

[MrCraig]

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
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
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.

[Blob]

<?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!');
}
?>

[MrCraig]

Ooh ty, that works

+REP if i can.

[RYANNNNN]

Just use is_numeric

[Baving]

if($bet == "-") die("Something"); 

lol..

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

[MrCraig]

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

[Mr Macro]

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

Correct.

There are loads of ways of doing it.

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

Is a way of doing it.

[MrCraig]

Ooh, never thought of that

+REP =]

[Assassinator]

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

[MrCraig]

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.