How does php handle notice error?
The following code generates a notice if $n is not set. Solving it requires an additional statement ( Show
asked May 7, 2011 at 12:19
There is no "consequence" to notices, per sé, other than bad coding practices. You should be coding with error_reporting set to I would argue that your code actually isn't neat, because you're testing a variable which doesn't get set previously. A suggestion would be something like this:
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answered May 7, 2011 at 12:24
Jim RubensteinJim Rubenstein 6,8164 gold badges35 silver badges54 bronze badges 2 A notice means that while your code will work as expected, it isn't written "like it should be". It's like the compiler telling you "I know what you mean here and I can do it, but you shouldn't rely on this. Please write it differently so I don't have to make assumptions". Therefore a notice by itself doesn't mean that something bad happens most of the time. However, I wouldn't call anyone who accepts notices in their code a professional programmer because fixing the notices is a pretty simple task and not having any notices says that you understand the language's basics well. If someone can't or don't want to do even this much, it says something about them. In your specific example, something like this should be done:
Note that by writing the extra answered May 7, 2011 at 12:26
JonJon 418k78 gold badges722 silver badges793 bronze badges 1 Normally in the production environments all error reporting which come strait from PHP libraries is turned off or parsed before showing to end user (it`s still logged). There are no consequences in notice, it`s just notice to developer that something bad could happen in this place, in your example initializing the variable with value. answered May 7, 2011 at 12:27
I encountered one function that handling "PHP Notice" can be beneficial.The function is:
This function return "false" and send "PHP Notice" on IP's that do not find in its database. The standard is that IP's reserved for internal networks, or Localhost will not be found. As a horrible practice this function treat this normal condition as bed coding. WRRRRR!!! There is solution to filter local IP,s before sending to this function ( assuming that all other addresses are covered by geoip database). I consider this geoip_record_by_name() as pest function that handling of "PHP Notice" is justified. Discussion related to this pest function answered Jan 21, 2014 at 4:04
0 Is notice an error in PHP?Notice Error
Notice errors are minor errors. They are similar to warning errors, as they also don't stop code execution. Often, the system is uncertain whether it's an actual error or regular code.
Why does PHP not show errors?If your PHP script is halting (or not executing code like you expect) and not displaying any error messages even though you know there's an error happening, it's likely that the 'display_errors' configuration setting is switched off.
Does PHP support error reporting?The error reporting function is a built-in PHP function that allows developers to control which and how many errors will be shown in the application. Remember, the PHP ini configuration has an error_reporting directive that will be set by this function during runtime. error_reporting(0);
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