Bug #69144 [Opn->Csd]: strtr not replacing with partly matching replace pairs

Edit report at https://bugs.php.net/bug.php?id=69144&edit=1 ID: 69144 Updated by: laruence@php.net Reported by: wouter at wouterj dot nl Summary: strtr not replacing with partly matching replace pairs -Status: Open +Status: Closed Type: Bug Package: Strings related PHP Version: master-Git-2015-02-28 (snap) Block user comment: N Private report: N New Comment: Automatic comment on behalf of laruence Revision: http://git.php.net/?p=php-src.git;a=commit;h=54e2020ee3e6142a86db03f1a9d47bc763334dbb Log: Fixed bug #69144 (strtr not replacing with partly matching replace pairs) Previous Comments: ------------------------------------------------------------------------ [2015-02-28 11:15:33] wouter at wouterj dot nl Description: ------------ Testing against the latest PHP 7 version, there seem to be a bug with the strtr function. As soon as you use replace pairs (the 2 arguments usage), the function won't replace anything if the replace pairs are matching eachother (e.g. in the test script "foobar" matches both "fo" and "bar"). From some tests[1], it seems like this bug has been introduced between January 1st and February 1st in the PHP 7 branch. [1] http://3v4l.org/FTV2L Test script: --------------- <?php $tests = array('bar' => '', 'foo' => 'o', 'foobar' => '', 'hello' => 'hello'); foreach ($tests as $input => $expected) { if ($expected !== ($actual = strtr($input, array("fo" => "", "foobar" => "", "bar" => "")))) { echo "KO $input became $actual instead of $expected\n"; } else { echo "OK $input became $expected\n"; } } ?> Expected result: ---------------- OK bar became `` OK foo became o OK foobar became `` OK hello became hello Actual result: -------------- KO bar became bar instead of `` KO foo became foo instead of o KO foobar became foobar instead of `` OK hello became hello ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69144&edit=1