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problem with regular expression

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Dec 22.2011

[B]
hi ifinish from my web site but iwant add filter for forms iwant players use numbers

iuse this code but not work good:

$pattern = ‘/^[0-9]$/’;
if(!preg_match($pattern,$input1){
echo “not numbers”;
}else{
echo “numbers”;
}

any one can tell me whats wrong itried before use filters from w3school but ithink its not work with php4
[/B]

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PHP

3 Comments(s) ↴

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@bionoidDec 22.2011 — You didn't specify how you wanted your range handled properly. I added a [B]+[/B], so you will need 1 or more numbers in $input1.

But if you want zero or more numbers then change it to a [B]*[/B] (depending if a blank input is also acceptable).

[code=php]$pattern = '/^[0-9]+$/';
if (preg_match($pattern, $input1)) {
echo 'numbers';
} else {
echo 'not numbers';
}[/code]

Alternatively, your pattern could have been:

[code=php]$pattern = '/^d+$/';[/code]
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@rtkwarauthorApr 08.2012 — $tagpattern = '/^[a-zA-Z0-9]{6,16}+$/';

iwant allow member leave space in field ,how?
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@WolfShadeApr 08.2012 — $tagpattern = '/^[ a-z0-9]{6,16}+$/i'; will allow letters, numbers, and spaces (plural). By adding the [B]i[/B] to the end, you make it case insensitive so you can remove the A-Z.
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