#36261 [NEW]: similar_text parameters aren't convertible

From: mac30 at narod dot ru Operating system: linux - kernel 2.6 PHP version: 4.4.2 PHP Bug Type: Feature/Change Request Bug description: similar_text parameters aren't convertible Description: ------------ Hi! I have some problems with similar_text() function. In most cases using similar_text(s1,s2) and similar_text(s2,s1) I get the same results. For example: (format: s1-first_string, s2-second_string, similar_text(s1,s2) (percents%) similar_text(s2,s1) (percents%) ziga piekierski 1 (14.3%), 1 (14.3%) sadlowski piekierski 3 (31.6%), 3 (31.6%), ogorek piekierski 2 (25.0%), 2 (25.0%) majeski piekierski 4 (47.1%), 4 (47.1%), They gives the same results regardless I use s1,s2 or s2,s1. But in some case I gets different results and I don't know why: natujeszczak piekierski 2 (18.2%), 3 (27.3%) andrzejewski piekierski 5 (45.5%), 4 (36.4%) michaelski pankanin 3 (33.3%), 1 (11.1%) cegielski pankanin 2 (23.5%), 1 (11.8%) I used PHP 4.4.0 and 5.0.5 and got exactly the same results on both of them. I find similar_text function very useful and that's a pity it's not reliable, because I don't know which value (of the two) is correct. Using LCS function (taken from comments on similar_text manual page) I was always getting the same results for (s1,s2) and (s2,s1) - always the higher value of similar_text(s1,s2) and similar_text(s2,s1) Best Regards Maciej -- Edit bug report at http://bugs.php.net/?id=36261&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36261&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36261&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36261&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=36261&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=36261&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=36261&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=36261&r=needscript Try newer version: http://bugs.php.net/fix.php?id=36261&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=36261&r=support Expected behavior: http://bugs.php.net/fix.php?id=36261&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=36261&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=36261&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=36261&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36261&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=36261&r=dst IIS Stability: http://bugs.php.net/fix.php?id=36261&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=36261&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=36261&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=36261&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=36261&r=mysqlcfg