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Bug #5472 back reference in pcre not working
Submitted: 2000-07-08 23:59 UTC Modified: 2000-07-09 00:01 UTC
From: sql42 at hotmail dot com Assigned:
Status: Closed Package: Misbehaving function
PHP Version: 4.0.1pl2 OS: Linux 2.2.14-5.0
Private report: No CVE-ID: None
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 [2000-07-08 23:59 UTC] sql42 at hotmail dot com 
if (preg_match("/([^aeiouylsz])\1$/", "hopp")) { echo "match<br>"; }

Does not match. This regex will match in Perl.

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 [2000-07-09 00:01 UTC] andrei at cvs dot php dot net 
You have to use two backslashes, \\1.
 
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