Bug #74349 [NEW]: cannot use include return string in OR condition

From: liviu dot gelea at gmail dot com Operating system: Windows 10 PHP version: 7.1.3 Package: Filesystem function related Bug Type: Bug Bug description:cannot use include return string in OR condition Description: ------------ When "returning" a string from a file, the result behaves differently if used in a condition containing the || operator setup an "environment.php" file that contains: <?php return "production"; then run the script attached: Test script: --------------- <?php // determine application environment $environmentFile = 'environment.php'; if (!file_exists($environmentFile)) { $environment = 'development'; } elseif ($environment = include $environmentFile) { // do nothing } else { $environment = 'development'; } echo $environment . " "; if (!file_exists($environmentFile) || ($environment = include $environmentFile)) { $environment = 'development'; } echo $environment; Expected result: ---------------- the script should echo the string "production production" Actual result: -------------- "production development" -- Edit bug report at https://bugs.php.net/bug.php?id=74349&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74349&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74349&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74349&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74349&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74349&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74349&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74349&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74349&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74349&r=support Expected behavior: https://bugs.php.net/fix.php?id=74349&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74349&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74349&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74349&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74349&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74349&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74349&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74349&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74349&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74349&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74349&r=mysqlcfg