Bug #66211 [NEW]: integer/string comparisons have bad type-casting

From: php at charles-chandler dot org Operating system: Mac OSX PHP version: 5.4.22 Package: Variables related Bug Type: Bug Bug description:integer/string comparisons have bad type-casting Description: ------------ --- From manual page: http://www.php.net/types.comparisons --- 2 == '2b' I understand why, in a loosely typed language, 2 == '2', but it doesn't make sense for an integer to be equal-equal to a string that simply begins with an integer, such as 2 == '2b', so this looks like a bug to me. Rather than casting the string to an integer (i.e., intval('2b') == 2), the integer should cast to a string for the comparison (i.e., strval(2) != '2b'). Tested in PHP 5.2.5 and 5.3.13. Test script: --------------- <?php // this is the problem, which we'd expect // to return false, but which returns true: echo (2 == '2b').'<br />'; // this is probably what's happening: echo (2 == intval('2b')).'<br />'; // this is what probably should happen: echo (strval(2) != '2b').'<br />'; ?> -- Edit bug report at https://bugs.php.net/bug.php?id=66211&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66211&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66211&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66211&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=66211&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=66211&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=66211&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=66211&r=needscript Try newer version: https://bugs.php.net/fix.php?id=66211&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=66211&r=support Expected behavior: https://bugs.php.net/fix.php?id=66211&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=66211&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=66211&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=66211&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66211&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=66211&r=dst IIS Stability: https://bugs.php.net/fix.php?id=66211&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=66211&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=66211&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=66211&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=66211&r=mysqlcfg