note 64013 added to function.strcmp

S dot Radovanovic suggested: "So my conclusion is that when comparing string, you'd better not make use of == (use strmp or === instead). For integer comparisons the == equation can be usefull, since our values will always be casted to an integer (1 == "1" returns true)." When I tried this, I ran into a problem with parameters passed in the URL. I forgot that a parameter that is not supplied wouldn't be a string, so this code -- which I expected to default to the current year -- didn't work: <?php // Did we get a parameter? if ($year === '') { // Default to current year $temp = getdate(); $year = $temp['year']; } $fname = "magic{$year}.txt"; if (file_exists($fname) == FALSE) { echo "<h2>Data file doesn't exist</h2>"; exit; } ?> Since $year was uninitialized, it didn't exactly equal '', and the file wasn't found. I went back to == in this case. However, I did heed your advice when looking for a particular value ($debug === 'Y'), instead of looking for the lack of a value. Thanks! ---- Server IP: 64.71.164.2 Probable Submitter: 164.57.122.126 ---- X-Spam-Status: No, hits=3.3 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER, HTML_MESSAGE autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.strcmp.php Edit -- http://master.php.net/note/edit/64013 Del: integrated -- http://master.php.net/note/delete/64013/integrated Del: useless -- http://master.php.net/note/delete/64013/useless Del: bad code -- http://master.php.net/note/delete/64013/bad+code Del: spam -- http://master.php.net/note/delete/64013/spam Del: non-english -- http://master.php.net/note/delete/64013/non-english Del: in docs -- http://master.php.net/note/delete/64013/in+docs Del: other reasons-- http://master.php.net/note/delete/64013 Reject -- http://master.php.net/note/reject/64013 Search -- http://master.php.net/manage/user-notes.php