How To Grip Php Detect Error?

A honor way that spell your code volition operate every mo expected, it isn't written "like it should be". It's similar the compiler telling yous "I know what yous hateful hither too I tin plow over notice produce it, but yous shouldn't rely on this. Please write it differently too thus I don't convey to brand assumptions".
The next code generates a honor if $n is non set.

 if($n==1) {    //do something } 

Therefore a honor past times itself doesn't hateful that something bad happens well-nigh of the time. However, fixing the notices is a pretty unproblematic task.

Influenza A virus subtype H5N1 solution or proposition would live on something similar this:

 if (!empty($n) && $n == 1) {     //do something } 

empty checks for beingness automatically (just similar calling isset earlier it) but it every mo good checks to brand certain your value doesn't evaluate every mo imitation amongst values similar false, 0, or '' (empty string).

Source: http://stackoverflow.com/a/5921010


Sumber http://developer-paradize.blogspot.com