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How could I merge these three functions?

Thread title: How could I merge these three functions?
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06-04-2012, 10:09 PM
#1
Dan is offline Dan
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  Old  How could I merge these three functions?

Self explanatory.

PHP Code:
function username($user) {
    if(
$user == null)
        return 
"<del>deleted</del>";
    else
        return 
$user;
}

function 
userURL($user) {
    if(!
$user == null)
        return 
"/user/".strtolower($user);
}

function 
userlink($user) {
    if(
$user == null)
        return 
"<del>deleted</del>";
    else
        return 
"<a href=/user/".strtolower($user).">$user</a>";

I don't see the need for three different functions when I could probably merge these into one. Though I'm not particularly sure how. If someone could point me in the right direction that would be swell.

06-04-2012, 10:23 PM
#2
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  Old

Originally Posted by Dan View Post
Self explanatory.
It really isn't. Where are they used / what prompted you to to create 3 of them in the first place?

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06-04-2012, 10:42 PM
#3
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  Old

It's just a bunch of if statements.

Run them through your head with: ($user = "username") || ($user = null)

I cannot create variables that can be used outside of the function from the function? Like:

function username($user) {
if($user = null)
$deleted = "deleted";
}

Then when the function is called username($username); I can echo $deleted? Is something like this at all possible? My tests show the above wouldn't work.

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06-04-2012, 11:04 PM
#4
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  Old

Originally Posted by Dan View Post
It's just a bunch of if statements.

Run them through your head with: ($user = "username") || ($user = null)

I cannot create variables that can be used outside of the function from the function? Like:

function username($user) {
if($user = null)
$deleted = "deleted";
}

Then when the function is called username($username); I can echo $deleted? Is something like this at all possible? My tests show the above wouldn't work.
http://php.net/manual/en/language.variables.scope.php

You could declare $deleted outside the function and then get access to it inside a function with the global keyword.

Not that I'm saying that's a good idea or anything.

06-04-2012, 11:39 PM
#5
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  Old

I second that doing so is a terrible idea. Passing a parameter by reference would be a much better idea but still may not be good. We don't really have any context into what you are doing. In general function shouldn't be returning formatted strings.

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07-30-2012, 05:05 AM
#6
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  Old

ok...since the purpose of this question is not exposed, the way i see it....u wanted 1function to serve the purpose all the 3 functions you mentioned top???

and if so...its simple...!

PHP Code:
function userdetails($user,$item)
{
    if(
$user == null)
        return 
"<del>deleted</del>";
    else
    {
        switch(
$item)
        {
            case 
'1':
                return 
"<a href=/user/".strtolower($user).">$user</a>";
            break;

            case 
'2':
                return 
$username;
            break;

            default:
                return 
$user;
            break;
        };
    }


$item holds the number for the cases.....so using one function with 2 parameters you can output any detail you want...and easy to add more details for accessing, just introduce another case to the switch loop...tc

HOPE I HAVE HELPED YOU!!

08-11-2012, 09:09 PM
#7
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  Old

Note that it is also possible to return arrays:

PHP Code:
function a(){
$array[]="a";
$array[]="b";
return 
$array;
}


$a=a();
print_r($a); 

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