Variables

[Anon]

using php3 it was not necessary to declare variable therefore php3 assumed that this variable had value " 0 ". I made upgrade for php4 and is occurring error because had not been attributed values for some variables. The code:
if ($a==0) {
echo "This is a test";
}
The error is the following one:
Warning: Undefined variable: a in d:\Inetpub\wwwroot\teste.php on line 1

I could modify this option in php.ini?

[Anon]

do this instead:

if (!$a) {
echo "this is a test";
}

[Anon]

The code:
if (!$a) {
echo "this is a test";
}

the error:
Warning: Undefined variable: a in d:\Inetpub\wwwroot\teste.php on line 2
this is a test

[Anon]

Look in your php.ini file for error_reporting = XXXXXX and change it to

error_reporting = E_ALL & ~E_NOTICE

This will keep this message from popping up where you use an undeclared variable.

Or, alternatively, you can place the following line of code:

error_reporting(E_ALL & ~E_NOTICE);

at the top of the script and that should resolve the issues as well.

Hope that helps:

Chris King

[Anon]

Or you could change your code to

if (!isset($a)) {
echo "this is a test";
}