Why a function checking if a string is empty always returns true? [closed]
Simple problem actually. Change:
if (strTemp != '')to
if ($strTemp != '')Arguably you may also want to change it to:
if ($strTemp !== '')since != '' will return true if you pass is numeric 0 and a few other cases due to PHP's automatic type conversion.
You should not use the built-in empty() function for this; see comments and the PHP type comparison tables.
I always use a regular expression for checking for an empty string, dating back to CGI/Perl days, and also with Javascript, so why not with PHP as well, e.g. (albeit untested)
return preg_match('/\S/', $input);Where \S represents any non-whitespace character
PHP have a built in function called empty()the test is done by typing if(empty($string)){...}Reference php.net : php empty