PHP 4.0 Bug #10218: preg_replace() with mod e, refs $10 - $19 don't work

From: karen@crazygrrl.com Operating system: FreeBSD 4.2 PHP version: 4.0.4pl1 PHP Bug Type: *Regular Expressions Bug description: preg_replace() with mod e, refs $10 - $19 don't work When using preg_replace() with the modifier "e", references of the form \\3 or $3 don't work correctly for the numbers 10-19, while they do for 0-9 & 20-29. A reference to $15 is interpreted as a reference to $1 concatenated with the number 5. Example: $numbers = "(one) (two) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15#5) (16) (17) (18) (19) (20) (21) (22) (23)"; $pat_without_mod = "/$numbers/"; $pat_with_e_mod = "/$numbers/e"; $text = "one two 3 4 5 6 7 8 9 10 11 12 13 14 15#5 16 17 18 19 20 21 22 23"; echo preg_replace($pat_without_mod, "'\\1 \\15 \\21'", $text); // 'one 15#5 21' echo preg_replace($pat_with_e_mod, "'\\1 \\15 \\21'", $text); // one one5 21 echo preg_replace($pat_without_mod, "'$1 $15 $21'", $text); // 'one 15#5 21' echo preg_replace($pat_with_e_mod, "'$1 $15 $21'", $text); // one one5 21 Configure line (via phpinfo() - I'm not the admin): './configure' '--with-apache=../apache_1.3.17' '--with-mysql=/usr/local' '--with-jpeg-dir=../jpeg-6b' '--with-png' '--with-gd=/usr/local' '--with-ndbm' '--without-ttf' '--enable-safe-mode' '--enable-dbase' '--enable-filepro' '--enable-ftp' '--disable-debug' -- Edit Bug report at: http://bugs.php.net/?id=10218&edit=1