function() return

[robert_gsfame]

let say i have a function

 

function checkme($x)

{

  if(strlen($x)>10)

{

  return $x;

}

else

{

  return false;

}

}

 

$variable=checkme("5");

 

so two questions i wish to ask...

1. If i wish to get the empty string for the $variable, then is it correct to have return false there?

2. If it is true that return shall not be used twice in a function as it will somehow reduce bytes space or something like that??

 

thx in advance

[rpmorrow]

1. Yes, FALSE is fine, or you could have NULL or...  return ""; They are equivalent, but are NOT identical. (See if ===)

2. you can have return multiple times in a function because only one of them can ever call at once. As soon as whatever conditions you set executes the first "return" then the function is finished and any others are irrelevant at that time.

[JasonLewis]

I've never heard of your #2 statement, although it could be true. Who knows. I'd doubt it. I sometimes do my returns like this too:

 

if(strlen($x) > 10){
   return $x;
}

return false;

Just a personal thing.