In some conditions, may I use an @ character instead of using the longer isset() function? If not, why not?
IN DB row1 (type column=apple), (stage column=1) row2 (type column=orange), (stage column=NULL) IN PHP 开发者_Python百科
I have 5 fields in my DB: test1 = 1, test2 = 1, test3 = NULL, test4 = NULL, test5 = NULL PHP code: if(isset($result[\'test1\'])){$test1= \"Test1\"; echo $test1};
If I set a constant to = \'\', How to I check if constant has something inside ? (ie see if it is set to something other than the empty string.)
I have found that array_key_exists is over 1000x slower than isset at check if a key is set in an array reference. Does anyone that has an understanding of how PHP is implemented explain why this is t
I\'m trying to make functions like empty() and isset() work with data returned by methods. What I have so far:
I\'ve read about how CI handles sessions differently than native sessions and feel slightly insecure about storing all the data in a cookie(?), unlike PHP\'s native session which only stores the sessi
I have a I statement; if($game_set->issue_challenge()){echo \"test\";}else {\"test failed\";} and I have a button:
I am trying to set all of my pages to forward to the login screen if the user is not logged in using session data, however it is not working. When a user clicks the links it just continues to the new
I am new to the concept of empty and null. Whilst I have endeavoured to understand the difference between them, I am more confused. I came across an article at http://www.tutorialarena.com/blog/php-is
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