pHp function - testing if my variable exists and if a condition is respected

Question

i would like to create a php function. Basically, that's what i've :

if(isset($myvariable) AND $myvariable == "something")
{
 echo 'You can continue';
}

and that's what i want :

if(IssetCond($myvariable, "something"))
{
 echo 'You can continue';
}

I want function that tests if the variable exists, and if it does it tests if the condition is respected. Otherwise it returns false.

I've tried a lot of things, but i still have a problem when $myvariable doesnt exist.

function IssetCond($var, $value){
    if(isset($var) AND $var == $value)
    {
        return true;
    }
    else
   {
        return false;
   }
}

When $myvariable exists and whether the condition is respected or not, it works.

If you have some minutes to help me i'll be grateful.

Thanks

Thomas

Answer 1

You can pass just the name, not the var, and use variable variable

function IssetCond($var, $value){
    return (isset($$var) AND $var == $value);
 }

Used like

 if(IssetCond('myvariable', "something"))
 {
     echo 'You can continue';
 }