Bug #53015 [Opn]: Logic operator failure

Edit report at http://bugs.php.net/bug.php?id=53015&edit=1 ID: 53015 User updated by: jesus dot perez at infpormax dot es Reported by: jesus dot perez at infpormax dot es Summary: Logic operator failure Status: Open Type: Bug Package: Scripting Engine problem Operating System: Debian 5.0.5 PHP Version: 5.2.14 Block user comment: N New Comment: There are a mistake at the email address it must be jesus.perez@informax.es My apologies for the inconveniences Previous Comments: ------------------------------------------------------------------------ [2010-10-07 19:21:25] jesus dot perez at infpormax dot es Description: ------------ We found a problem with the logical operators, exactly with the "||" and the "OR" operators. We think both of them are the same, except for the precedence of each one. But when we run the script we show below, the results arent the same. Is not a crash bug, but we found unexpected results using this operators. Thanks in advance Test script: --------------- <?php $a = false; $b = true; $c = true; $res10 = $a || $b || $c; $res11 = ($a || $b) || $c; $res12 = $a || ($b || $c); $res13 = ($a || $b || $c); $res20 = $a OR $b OR $c; $res21 = ($a OR $b) OR $c; $res22 = $a OR ($b OR $c); $res23 = ($a OR $b OR $c); echo ' TEST || <br />'; echo (int)$a." || ".(int)$b." || ".(int)$c." = ".(int)$res10." <br />"; echo "(".(int)$a." || ".(int)$b.") || ".(int)$c." = ".(int)$res11." <br />"; echo (int)$a." || (".(int)$b." || ".(int)$c.") = ".(int)$res12." <br />"; echo "(".(int)$a." || ".(int)$b." || ".(int)$c.") = ".(int)$res13." <br />"; echo ' <br />'; echo ' TEST OR<br />'; echo (int)$a." OR ".(int)$b." OR ".(int)$c." = ".(int)$res20." <br />"; echo "(".(int)$a." OR ".(int)$b.") OR ".(int)$c." = ".(int)$res21." <br />"; echo (int)$a." OR (".(int)$b." OR ".(int)$c.") = ".(int)$res22." <br />"; echo "(".(int)$a." OR ".(int)$b." OR ".(int)$c.") = ".(int)$res23." <br />"; ?> Expected result: ---------------- We except the same result for all the comparators. We think it must be "true" all of them Actual result: -------------- The result is unexpected. The result is not the same using an "OR" or a "||", but it must be the same. is not a precedence problem because we are using only one operator at the same time. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=53015&edit=1