note 38073 added to function.isset

Since PHP will check cases in order, I often end up using this bit of code: <?php if (isset($var) && $var) { // do something } ?> In short, if you have error reporting on, and $var is not set, PHP will generate an error if you just have: <?php if ($var) { // do something } ?> ...but, as noted elsewhere, will return True if set to False in this case: <?php if (isset($var)) { // do something } ?> Checking both to see if $var is set, and that it equals something other than Null or False is something I find very useful a lot of times. If $var is not set, PHP will never execute the second part of "(isset($var) && $var)", and thus never generate an error either. This also works very nice for setting variable as well, e.g.: <?php $var = (isset($var) && $var) ? $var : 'new value'; ?> ---- Manual Page -- http://www.php.net/manual/en/function.isset.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+38073 Delete -- http://master.php.net/manage/user-notes.php?action=delete+38073&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+38073&report=yes Search -- http://master.php.net/manage/user-notes.php