im new to php and having some trouble with parameter passing in functions. I can't get my function to execute properly. This is the function.
function validateUser($username){
if(!empty($_POST))
{
if(strlen($_POST['username']) < 5)
{
die("Please enter a valid username");
}
}
thanks
The parameter of the function is what you pass to the function when you call it. You then access it within your function like any other variable.
function validateUser($username){
if(strlen($username) < 5)
{
die("Please enter a valid username");
}
}
You then would call it using the value you want to validate like this:
validateUser($_POST['username']);
Tip: Don't use die() in your functions. Have them return true or false and then have the code that calls it decide how to handle the error.
The parameters ain't passed in a POST variable. The way you formed your parameters when defining the function is the way you use them.
function validateUser($username)
{
if(strlen($username) < 5)
{
return 0;
}
}
}maybe. Or, what did you get exactly ??$_POSTvariable by executingecho "<pre>"; print_r($_POST); echo "</pre>";$usernamebut inside of the function you don't use this parameter and validate what you have in$_POST['username']