#31357 [Opn->Bgs]: PHP gives indulgences when a developer uses wrong escaping

ID: 31357 Updated by: tony2001@php.net Reported By: wicked at ngs dot ru -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Win XP + SP1 PHP Version: 4.3.8 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Escaped characters are pretty well documented and I don't understand what do you complain about. See here: http://www.php.net/manual/en/language.types.string.php Previous Comments: ------------------------------------------------------------------------ [2004-12-30 20:41:16] wicked at ngs dot ru Description: ------------ I expect that print "\a"; will fail because there is no entity like \a among \n, \r, \t, \\, \$, \", \[0-7]{1,3} and \x[0-9A-Fa-f]{1,2}. It is like that browsers like IE shows "&abc" as there were written "&amp;abc". It's harmful. More than that, I and some other PHP experts have been puzzleing why this string works: $tokens = preg_split('/(?<!\\\)[&?!]/', $query, -1, PREG_SPLIT_DELIM_CAPTURE); Everybody expected that ) was escaped! Reproduce code: --------------- $tokens = preg_split('/(?<!\\\)[&?!]/', $query, -1, PREG_SPLIT_DELIM_CAPTURE); Expected result: ---------------- PHP fails because of brackets mismatch (one of brackets is escaped). Actual result: -------------- It works :( ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31357&edit=1