[PHP] Looking for an easier regex check...
Does anybody know of a good way to make sure that a string contains ONLY
certain characters. I tried using
ereg([~`!@#$%^*(){}-+=|\\/.,'\:;\[\]], $string); but I get parse
errors. Besides that I only want the characters A-Za-z0-9_ in $string. Is
there is simpler way to ensure this rather than checking to see if any of
the characters I don't want are in there?
Thank you for your help in advance.
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[PHP] Looking for an easier regex check...
Does anybody know of a good way to make sure that a string contains ONLY
certain characters. I tried using
ereg([~`!@#$%^*(){}-+=|\\/.,'\:;\[\]], $string); but I get parse
errors. Besides that I only want the characters A-Za-z0-9_ in $string. Is
there is simpler way to ensure this rather than checking to see if any of
the characters I don't want are in there?
Thank you for your help in advance.
--
Joshua E Minnie/CIO
[EMAIL PROTECTED]
Phone: 616.276.9690
Fax: 616.342.8750
Nextel: 616.862.2847
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Re: [PHP] Looking for an easier regex check...
On Mon, 29 Apr 2002, Joshua E Minnie wrote:
Does anybody know of a good way to make sure that a string contains ONLY
certain characters. I tried using
ereg([~`!@#$%^*(){}-+=|\\/.,'\:;\[\]], $string); but I get parse
errors.
I'm surprised you get a parse error. I'd expect you would get a runtime
error like REG_ERANGE.
Anyway, you need to escape all the characters that have special meanings
in regular expressions. Try something like:
ereg([~!@#\$%^\*(){}\-\+=|\\/\.,'\:;\[\]a-zA-Z0-9], $string);
Besides that I only want the characters A-Za-z0-9_ in $string. Is there
is simpler way to ensure this rather than checking to see if any of the
characters I don't want are in there?
miguel
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Re: [PHP] Looking for an easier regex check...
Worked great only you forgot to escape the carat character. Thanks for the
help.
Josh
Miguel Cruz [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
On Mon, 29 Apr 2002, Joshua E Minnie wrote:
Does anybody know of a good way to make sure that a string contains ONLY
certain characters. I tried using
ereg([~`!@#$%^*(){}-+=|\\/.,'\:;\[\]], $string); but I get parse
errors.
I'm surprised you get a parse error. I'd expect you would get a runtime
error like REG_ERANGE.
Anyway, you need to escape all the characters that have special meanings
in regular expressions. Try something like:
ereg([~!@#\$%^\*(){}\-\+=|\\/\.,'\:;\[\]a-zA-Z0-9], $string);
Besides that I only want the characters A-Za-z0-9_ in $string. Is there
is simpler way to ensure this rather than checking to see if any of the
characters I don't want are in there?
miguel
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