using a foreach loop to initialize variables

Question

I have built an empty associative array whos keynames refer to submitted post data. I can capture the postdata just fine, but I run into trouble trying to instantiate varia

Answer 1

If I understand you correctly, Im going to suggest this approach:

$defaultValues = array('rUsername'=>'', 'rPass'=>'', 'rQuestion'=>'', 'rAnswer'=>'', 'rFName'=>'', 'rLName'=>'', 'rBDateD'=>'', 'rBDateM'=>'', 'rBDateY'=>'', 'rHCheck'=>'', 'rHCeckOption'=>'', 'rEmail'=>'');
$values = array_map('stripslashes', array_merge($defaultValues, array_filter($_POST)));
extract($values, EXTR_SKIP);
echo $rUsername;
echo $rPass;
.........

By using the snippet above, you have to take into account the following

• Im using the extract function with EXTR_SKIP so you dont overwrite existing variables. Make sure to only use the variables you need in your code and sanitize them appropietly.

• By using array_filter on the $_POST superglobal im "erasing" all empty or null variables. so if an expected key was not sent via $_POST, it defaults to the value specified by the $defaultValues array.

• I dont quite understand why you are using filter_input without the third parameter (filter constants).