note 27313 deleted from language.operators.comparison by sniper

Note Submitter: michael at hotmail or so dot com ---- Be careful that !== is not the exact opposite of == While == checks only the contents, !== checks both contents and type. The following example will print out both "is empty" and "is not empty": $a = NULL; if ($a == "") {echo "is empty ";} if ($a !== "") {echo "is not empty";}