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Manual: error_reporting
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error_reporting

(PHP3 , PHP4 )

error_reporting -- set which PHP errors are reported

Description

int error_reporting ([int level])

Sets PHP's error reporting level and returns the old level. The error reporting level is a bitmask of the following values (follow the links for the internal values to get their meanings):

Tabella 1. error_reporting() bit values

valueinternal name
1 E_ERROR
2 E_WARNING
4 E_PARSE
8 E_NOTICE
16 E_CORE_ERROR
32 E_CORE_WARNING


User Contributed Notes: error_reporting

webmaster@l-i-e.com
21-May-1999 02:13
There is also an E_ALL which is the first 4 E_xxx added up for you...

arni@linux.is
25-Jan-2000 01:16
If you want to disable error messaging, simply do this in your code:

error_reporting(0);



sbeam@beeline.net
03-Feb-2000 11:31
To arni@linux.js - I read somewhere that turning off error messages when you release your code is like taking off your parachute after you jump out of the plane.

I would like to always use reporting level 8 - it speeds debugging immesely. Somewhat equivalent to using to -w switch in Perl - which should ALWAYS be done. However there doesn't seem to be a way to then <i>test</i> the existence/definition of a variable. i.e. I want to say
<pre>
if (defined($HTTP_COOKIE_VARS["foo"])) { do something...}
</pre>

I still get "Undefined index: foo" when the cookie has not been set yet. Duh - thats why I asked if it was defined. So unfortunately I do have to lower the reporting level to get cookies to work - since the warnings screw up the headers and thus the cookies themselves.



cooper@cooper8.com
13-Feb-2000 02:04
The "isset" function or "empty" function does not produce E_NOTICE errors like "defined" does.

dozprompt@onsea.com
15-Apr-2000 09:14
It is there to protect you from your own code. For example, if you were to test the value of $green without ever assigning it a value, your code may do something you did not expect it to do. Then you would spend unnescessary time debugging. The same 'pickyness' is present in the majority of programming languages; PHP is no different.

hholzgra@php.net
10-Aug-2000 08:17
E_COMPILE_ERROR and friends are missing

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