Posted by Mark Woodward on 10/11/06 13:11

Hi petersprc,

On Wed, 11 Oct 2006 05:55:43 -0700, petersprc wrote:

> Try backslashing the single quote: $match = '/^[\'\w\.\-_?!, ]+$/';

I've tried that but still seen as an illegal character??? Weird!
(See first alternative match below).

Could it be an encoding issue?


>
> In a single-quoted string, a literal single quote must be escaped with
> a backslash. See here for string usage:
>
> http://us2.php.net/manual/en/language.types.string.php
>
> Mark Woodward wrote:
>> Hi all,
>>
>> I'm trying to validate text in a HTML input field.
>> How do I *allow* a single quote?
>>
>> // catch any nasty characters (eg !@#$%^&*()/\)
>> $match = '/^['\w\.\-_?!, ]+$/';
>> $valid_srch = preg_match($match, $res_description);
>> if (!$valid_srch) {
>> ...
>> }
>>
>>
>>
>> for $match I've also tried:
>>
>> $match = '/^[\'\w\.\-_?!, ]+$/';
>>
>> $match = '/^["\w\.\-_?!, ]+$/';
>>
>> $match = "/^['\w\.\-_?!, ]+$/";
>>
>> $match = "/^[\'\w\.\-_?!, ]+$/";
>>
>> and numerous other strings but always ' is seen as an
>> invalid character.
>>
>>
>> thanks,
>>
>>
>> --
>> Mark


cheers,

--
Mark

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