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Toasty
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Joined: 21 Feb 2008
Posts: 298
Location: Chicago, IL
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 Posted: Sat Apr 25, 2009 11:05 am Post subject: More questions on Regular Expressions |
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Okay, so I know I've gotten quite a bit of help in the past from you guys on RegEx. I am really no good at it, so I'd like to see if maybe you guys can give me a hand at this.
Below is my current code that strips out everything except letters and numbers:
| Code: | | $var = ereg_replace("[^A-Za-z0-9]", "",$var) |
I was wondering if somebody can tell me how to allow each of these:
Underscore
Dash
Period
Question Mark
Exclamation Mark
Quote/ Double Quote
It would be great if you could tell me each one individually, it would help me figure out what I need to add for each character. There are some times I don't want to use some of these characters.
Thanks in advance for any help!
-Toasty
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pkSML
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Joined: 29 May 2006
Posts: 952
Location: Michigan, USA
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| Posted: Sat Apr 25, 2009 11:05 pm Post subject: Re: More questions on Regular Expressions |
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| Toasty wrote: | Okay, so I know I've gotten quite a bit of help in the past from you guys on RegEx. I am really no good at it, so I'd like to see if maybe you guys can give me a hand at this.
Below is my current code that strips out everything except letters and numbers:
| Code: | | $var = ereg_replace("[^A-Za-z0-9]", "",$var) |
I was wondering if somebody can tell me how to allow each of these:
Underscore
Dash
Period
Question Mark
Exclamation Mark
Quote/ Double Quote
It would be great if you could tell me each one individually, it would help me figure out what I need to add for each character. There are some times I don't want to use some of these characters.
Thanks in advance for any help!
-Toasty |
Should work by throwing the characters in the character class (i.e. within the brackets).
| Code: | | $var = ereg_replace("[A-Za-z0-9_\-\.?\!\'\"]", "",$var) |
Some of the characters need to be escaped - some may not be. It probably hurts less to over-escape. At quick glance, a replace function shouldn't need the carat in the regex. That's only useful for matching regex functions.
Good website: http://regular-expressions.info
Recommended program: The Regex Coach
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Stephen
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