[SOLVED] Creating functions

[ShaolinF]

Hi Guys,

 

I have an awful lot of sessions and I want to create a function to check them. Below is an example of a typical session check:

 

if(isset($_SESSION['LOGINFAILED'])) 
{ 
    echo $_SESSION['LOGINFAILED'];
} else { 
    echo "none"; 
}

 

Most of my session checks go along those lines. I have tried to make a function out of it but I keep having problems. See my current attempt below:

 

function checkSession($sessionName) 
{
if(isset($_SESSION["$sessionName"])) { 
	echo $_SESSION["$sessionName"]; 
} else { 
	echo "none"; 
}
}

[ratcateme]

you need to change your echo's to return's

function checkSession($sessionName) 
{
if(isset($_SESSION["$sessionName"])) { 
	return $_SESSION["$sessionName"]; 
} else { 
	return "none"; 
}
}

 

Scott.

[ShaolinF]

Ah ha. Thanks. What if I wanted to write a function for SELECT/UPDATE/DELETE/INSERT statements ? They all have the potential to accept many arguments.

[ratcateme]

you could create a function and use [ur=http://nz2.php.net/manual/en/function.func-get-arg.phpl]func-get-arg[/url] to get the args

but i write all my query's inline with out functions

 

Scott.

[haku]

You can write a function that will do all those things, but to write the function versatile enough to be able to handle all the different types of queries it ends up becoming so bulky that you might as well just write the queries inline each time.