PHP problem with $_GET

[mcall]

Am new to PHP and figure there's something I'm missing.

a$=$_GET["somedata"];
if ($a="cat") { do something }

The problem I'm having here, is regardless of what is passed, the if statement above always returns true and when I check the value of a$ after the if statement is called, I see that a=NULL.

What am I missing here?

 

[vacunita]

2 things here.

The "$" symbol should always come before the variable name. So this:

a$=$_GET["somedata"];

Should be producing a syntax error.

Second, This:

if ($a="cat")

Is only checking if the assignment of the string "cat" to the variable a is successful. And since its always possible to assing a value to a variable, it s always true.

In PHP the comparison operator is a double equal sign.

So if you want to check if A has a value of "cat" it should look like this:

if ($a[red]==[/red]"cat")

----------------------------------
Phil AKA Vacunita
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Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

Web & Tech

 

[mcall]

thanks. a$ was a typo submitting the post.