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Bug #33297 double backlash and single backlash is same in eregi
Submitted: 2005-06-10 13:23 UTC Modified: 2005-06-11 15:13 UTC
From: hv at trust-mart dot com Assigned:
Status: Not a bug Package: Regexps related
PHP Version: 4.3.11 OS: linux
Private report: No CVE-ID: None
 [2005-06-10 13:23 UTC] hv at trust-mart dot com
The double backlash and single backlash is same result in eregi.

Reproduce code:
These codes are judging "$domain" in right or wrong format.
But two lines get the same result.Could any one tell me why?

eregi("^[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,4}$", $domain
eregi("^[0-9a-z]([-.]?[0-9a-z])*\.[a-z]{2,4}$", $domain


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 [2005-06-11 15:13 UTC]
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

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