From: christian dot lawrence at calorieking dot com Operating system: PHP version: 5.2SVN-2009-11-19 (snap) PHP Bug Type: JSON related Bug description: json_encode() does not always encode a float as a float
Description: ------------ json_encode()-ing an integer when it is represented as floating point number results in a change of type when json_decode() decodes the output. Examples of such floating point numbers are: -123.0, -1.0, 0.0, 1.0, 123.0 Reproduce code: --------------- <?php function jsonRoundTrip($f) { $e = json_encode($f); $d = json_decode($e); var_dump($f, $e, $d); echo "\n"; } jsonRoundTrip(12.3); // This is a float jsonRoundTrip(12); // This is an integer jsonRoundTrip(12.0); // This is an integer represented as a float jsonRoundTrip(0.0); // This is an integer represented as a float ?> Expected result: ---------------- float(12.3) string(4) "12.3" float(12.3) int(12) string(2) "12" int(12) float(12) string(4) "12.0" float(12) float(0) string(3) "0.0" float(0) Actual result: -------------- float(12.3) string(4) "12.3" float(12.3) int(12) string(2) "12" int(12) float(12) string(2) "12" int(12) float(0) string(1) "0" int(0) -- Edit bug report at http://bugs.php.net/?id=50224&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=50224&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=50224&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=50224&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=50224&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50224&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=50224&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=50224&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=50224&r=needscript Try newer version: http://bugs.php.net/fix.php?id=50224&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=50224&r=support Expected behavior: http://bugs.php.net/fix.php?id=50224&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=50224&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=50224&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=50224&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50224&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=50224&r=dst IIS Stability: http://bugs.php.net/fix.php?id=50224&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=50224&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=50224&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=50224&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=50224&r=mysqlcfg