When I run PHP scripts on my company's web server, I can attempt to read a
variable that has not already been declared.
When I try to access a variable before a value is assigned on my home
computer (Windows with IIS), I get a warning about the variable being
undefined.
Is there a flag in php.ini that allows a script to check a variable before
defining it? 4 3709
>When I run PHP scripts on my company's web server, I can attempt to read a variable that has not already been declared.
When I try to access a variable before a value is assigned on my home computer (Windows with IIS), I get a warning about the variable being undefined.
Careful use of isset() on every variable that might be undefined
before trying to use its value will avoid this. Most any element
of $_GET, $_PUT, $_COOKIE, $_SERVER, etc. should be considered as
possibly undefined until proven otherwise. How you handle an
undefined variable is up to you: give it a default, skip the section
dealing with it entirely, display an error back to the user, or
whatever.
Is there a flag in php.ini that allows a script to check a variable before defining it?
As far as I know, nothing in php.ini is required to use isset().
IMHO, you should consider each warning as a bug that needs to be fixed.
You should use error_reporting (E_ALL) on your company's server to
get the warnings.
Gordon L. Burditt
"Pizzor2000 " <ex******@att.n et> wrote in message
news:M0******** *************@b gtnsc05-news.ops.worldn et.att.net... When I run PHP scripts on my company's web server, I can attempt to read a variable that has not already been declared.
When I try to access a variable before a value is assigned on my home computer (Windows with IIS), I get a warning about the variable being undefined.
Is there a flag in php.ini that allows a script to check a variable before defining it?
What you're getting are notices, not warnings. Just set error_reporting to
exclude E_NOTICE and they'll be gone.
.oO(Chung Leong) What you're getting are notices, not warnings. Just set error_reporting to exclude E_NOTICE and they'll be gone.
It would be better to fix the issues instead.
Micha
"Michael Fesser" wrote: .oO(Chung Leong)
What you’re getting are notices, not warnings. Just set error_reporting toexclude E_NOTICE and they’ll be gone.
It would be better to fix the issues instead.
Micha
Agreed. More error/warnings are always better than less. Use isset
to check for a variable being defined, like this:
if (isset($a) && $a == ’something’) ... do something
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(see the post by ASM in the original thread; can be seen at
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