use a variable in a function?

[Snaked]

[PHP]function flash_search()
{
$query="SELECT score FROM hi WHERE name='$sname'";
$scre=mysql_query($query);
$res=mysql_fetch_array($scre,MYSQL_ASSOC);
echo $sname;
echo $res["score"];
}[/PHP]
This, by some crazy therory, should display the name and score of one person in my database.

This is where $sname="Test" (an existing user)
the database has 2 columns Name and Score. hi is the table's name.

Why doesn't this work? I am only a novice in PHP...

TA, Snaked

[ronverdonk]

Since this is a function, did you define $sname as a global? If not: a function cannot address non-global variables. So you either pass the var to the function or you define it as global.

Ronald

[Snaked]

$sname=$_GET["name"];
if that is what you mean, yes.

[ronverdonk]

No, $_GET is global, $sname is not.

Ronald

[Snaked]

EDIT: Never mind, i fixed it myself. Whoops

[ronverdonk]

EDIT: Never mind, i fixed it myself. Whoops

So how did you fix it. Can we share that?

Ronald

[aktar]

This post is for those who are seeking a solution to the same problem

As Ronald stated earlier, if you're going to include an external variable inside a function then that variable must be declared as global. Heres how:

[PHP]global $your_variable_name;[/PHP]
this will make your variable (and ofcourse its value) available inside the function.

NOTE: you do not have to do this for _POST, _GET _REQUEST etc

[Markus]

This post is for those who are seeking a solution to the same problem

As Ronald stated earlier, if you're going to include an external variable inside a function then that variable must be declared as global. Heres how:

[PHP]global $your_variable_name;[/PHP]
this will make your variable (and ofcourse its value) available inside the function.

NOTE: you do not have to do this for _POST, _GET _REQUEST etc

And if you create a variable inside a function, declaring it as global will give you access to it outside of that function, no?