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Bug #49118 mb_ereg_replace can't replace to \\0
Submitted: 2009-07-31 07:35 UTC Modified: 2009-07-31 23:20 UTC
From: i-ito at ray dot co dot jp Assigned:
Status: Not a bug Package: mbstring related
PHP Version: 5.2.10 OS: CentOS5.3
Private report: No CVE-ID: None
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From: i-ito at ray dot co dot jp
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 [2009-07-31 07:35 UTC] i-ito at ray dot co dot jp
mb_ereg_replace can't replace to "\\0" ?

Reproduce code:
// works fine
echo mb_ereg_replace("\1", "\\1", TEST_STRING_1,"p");
// but not
echo mb_ereg_replace("\0", "\\0", TEST_STRING_0,"p");
// and also
echo mb_ereg_replace("\1", "\\0", TEST_STRING_1,"p");


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 [2009-07-31 23:20 UTC]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at and the instructions on how to report
a bug at

"\\0" is a placeholder for the entire match.
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