Edit report at http://bugs.php.net/bug.php?id=51795&edit=1
ID: 51795 Updated by: ras...@php.net Reported by: slevinski at gmail dot com Summary: Loose comparison too loose Status: Bogus Type: Bug Package: Strings related Operating System: Ubuntu PHP Version: 5.2.13 New Comment: Or prefix your strings with 0x if you want to force hex. Previous Comments: ------------------------------------------------------------------------ [2010-05-11 22:18:02] dtajchre...@php.net 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 "0080" turns into an 80 and is stored as an int. "80e0" turns into 80 x 10^0 which is also 80 but is stored as a float. 80(int) == 80(float). 80(int) !== 80(float). I didn't understand the rest of what you wrote but php.net/hexdec might be of some use. See: http://www.php.net/manual/en/language.types.string.php#language.types.string.conversion ------------------------------------------------------------------------ [2010-05-11 16:25:33] slevinski at gmail dot com Description: ------------ if ("0080" == "80e0") echo "Smoking crack!"; I created a double octet coded character set. I'm using 4 hex to represent each character. I'm using a switch statement to get a token based on the value. The string "80e0" is incorrectly setting off the case "0080" statement. The strict comparison of === works as expected, but the switch uses a loose comparison. Test script: --------------- if ("0080" == "80e0") { echo "Too loose"; } else { echo "Just right"; } Expected result: ---------------- Just right Actual result: -------------- Too loose ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51795&edit=1
