note 59754 added to language.operators.arithmetic

Note that constructs which evaluate to 0 (such as empty strings, false, or an explicit NULL) will be treated as 0 in a arithmetic operation. Therefore: <?php echo 5*"", '<br>'; echo 5+false, '<br>'; echo 5/NULL, '<br>'; ?> Will produce: 0 5 Warning: Division by zero ---- Manual Page -- http://www.php.net/manual/en/language.operators.arithmetic.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+59754 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+59754&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+59754&report=yes Search -- http://master.php.net/manage/user-notes.php