Logical operators

[djumaka]

Hi there!

I've got some, you might think it dull, question.

I want to check if a variable is defined and its value at one and the same line like this:

if((isset($var))&&($var="..."))

The question is if PHP is gonna spit some warning in the case that $var is not defied or it won't check the second expression in case that the first is wrong.

Thanks in advance.

Djumaka.

[Weedpacket]

I think you mean == and not =, but to answer your question: have you tried it?

[AlfieShoe]

Surely the simplest way is just to split up the IF's.

if (isset($var))
{
if ($var=="...")
{
whatever;
}
}

[ahundiak]

Tests are executed from left to right. As soon as one fails the evaluation stops so the remaining conditions will not be tested. This is guaranteed by the language spec.

So if((isset($var))&&($var="...")) will work as you want it to.

Note: This question is best answered by reviewing the manual. Just testing it does not mean that the same behaviour will be observed on all platforms and all versions.

[djumaka]

Thak you Ahundiak!

You gave me the answer I was looking for.

Djumaka

[okuto1973]

Mark this thread as resolved!