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#1
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How do you check for more than 1 letter for a variable?
How do you check to make sure that a variable only allows 1 letter or number? Here is the variable I am using in the php file:
Code:
$vbulletin->GPC['letter'] I want to do a check to make sure only one letter or number is entered. Right now you can enter anything for it. |
#2
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Quote:
PHP Code:
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#3
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You are the man! Thank you!
I was way off on the regex as I suck at those. Here is what I ended up using: Code:
if (!(strlen($vbulletin->GPC['letter']) == 1) && preg_match('/^[a-zA-Z0-9]+$/', $vbulletin->GPC['letter'])) { print_stop_message('cannot_have_null_values'); } I will be using a different stop message, but I wanted to make sure I could get it to work first. I have another condition before this one that checks to make sure all 3 variables (letter + 2 others) are not blank. I was going to add this to that but I wanted to catch the letter variable separately. This is how it all looks together for the error checking: Code:
if (!$vbulletin->GPC['quote'] OR !$vbulletin->GPC['name'] OR !$vbulletin->GPC['letter']) { print_stop_message('cannot_have_null_values'); } if (!(strlen($vbulletin->GPC['letter']) == 1) && preg_match('/^[a-zA-Z0-9]+$/', $vbulletin->GPC['letter'])) { print_stop_message('cannot_have_null_values'); } If you have any suggestion s or advice, I am all ears. And thank you again. |
#4
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If you are going to split it up and give messages I'd do something like this and split it a bit more, otherwise the user might get confused with one message for multiple conditions.
PHP Code:
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#5
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Couldn't you do elseif's there also?
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#6
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You could use an elseif if you want. I normally would do it differently. I would usually add the errors to a variable then output the variable, that way all the errors are shown at once instead of the user having to submit 3 times before he see's all the errors.
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#7
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I've never done it with a variable like that. Can you give me an example how I could do that?
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#8
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Something like this should suffice.
PHP Code:
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#9
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Thanks. I'll play with that and see what I can come up with.
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