Zend regex validator difficulty

Question

I want to allow only the following characters in a string: digits, parentheses and the plus sign, which is [0-9] ( ) +

I can't seem to get a combination to get the validator to return true, the only option seems to be an list of every other possible character that's NOT allowed... which would make for a large list!

Am I missing something?

Can you please show us what you tried so far?

Howard
– Howard

2011-08-20 16:40:12 +00:00
Commented Aug 20, 2011 at 16:40 — Howard
– Howard, Commented Aug 20, 2011 at 16:40

Paul · Accepted Answer · 2011-08-20 16:45:58Z

1

This should work:

/^[0-9()+]*$/

The regex I gave you there also accepts the empty string. If you want to disallow empty then change the * near the end to a +.

answered Aug 20, 2011 at 16:45

Paul

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Alex Howansky · Accepted Answer · 2011-08-20 16:51:36Z

1

You need to slash-escape parens and the plus, because they have special meanings in regex:

/^[\d\(\)\+]+$/

answered Aug 20, 2011 at 16:51

Alex Howansky

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1 Comment

Owen Over a year ago

I knew to escape the parens and plus... I was missing the ^ and $ from the beginning and end, I didn't know why they were needed. Thanks.

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