ID: 20150
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
-Status: Open
+Status: Bogus
Bug Type: PCRE related
Operating System: WinNT 2000
PHP Version: 4.2.1
New Comment:
Please do not submit the same bug more than once. An existing
bug report already describes this very problem. Even if you feel
that your issue is somewhat different, the resolution is likely
to be the same. Because of this, we hope you add your comments
to the original bug instead.
Thank you for your interest in PHP.
Duplicate of #15166 but adds no new information -> bogus
Previous Comments:
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[2002-10-29 11:01:29] [EMAIL PROTECTED]
When the reference identificator in replacement parameter is followed
by other regular php variable, the variable is parsed, and after that
the number of reference is catched.
<?
$str = "Something to be replaced 7";
$rpl = 6;
echo preg_replace("/^(.*?)[0-9]*$/", "\\1$rpl", $str);
?>
When I expect 7 to be replaced with 6, preg_replace() searches for
reference \\16. The problem can be resolved with adding some /e stuff,
ot just modifying the regexp.
<?
$str = "Something to be replaced 7";
$rpl = 6;
echo preg_replace("/^(.*?)[0-9]*$/e", "'\\1'.\$rpl", $str);
?>
Even, I can use some of the things proposed in:
http://bugs.php.net/bug.php?id=15166
Ok, but /e makes the whole thing slower...\\1\\99$rpl is a good
solution, but what happens when the maximum number of references
becomes 999? :-)
So, the behavior of the function is a little strange in this
case...because in the second parameter two things has to be parsed.
Once php variables, and then regexp references.
In my opinion, this is a bug. Maybe it's difficult to change the whole
parsing mechanism of php cause of one exception, but the exception is
already there - references can be numbers (like in Perl), $1, $2,
etc...
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