Hi,

i've just followed an entrance test yesterday, and i got 1 question that is really confusing me.. and i think it's impossible for answering the question.
so the question is:

PHP Code:

if(condition)
{
      print "Hello";
}
else
{
      print "World";
} 


so what is the appropriate condition to make the code above print "HelloWorld"? is it possible to print the HelloWord by modifying the condition only? i'm just curious anyway =)

thank's for your attention

Regards

I can't see how it would be possible.

It's not possible Yes or not!
That's all!
or....

PHP Code:

if(condition)
{
      echo "Hello";
}
elseif (new condition)
{
      echo "Hello World";
} 
else
{
      echo "World";
} 


If the if is only being run once then I can't see how any condition would be possible unless the condition was both true and false...maybe Schrodinger's Cat Dead....:P

Jamie

An if/else will execute either/or. It'll never run both over the same execution.

if ($test) {
print "Hello";
}
else {
print "World";
}

$test = 1 will print hello. $test = 0 will print world. If you need it to output both hello and world when $test = 1, you'd be better off putting both print statements under the if=true section. Unless I'm missing something. This obviously depends on your requirements.

For example if you get your condition from url script can look like this:

PHP Code:

$test = @$_GET['test'];

if ($test == '1') { 
print "Hello"; // print Hello if is set 1 
}elseif($test == '2') {
print "Hello World"; // print Hello World if is set 2 
} else {
print "World"; // print World if is condition empty 
                  // or any other number then 1 or 2
} 


Shivaji

If the if/else were inside a loop, then you could use the same condition to print both the Hello and World

PHP Code:

for ($i = 0; $i < 2; $i++)
{
  if ($i == 0)
  {
    echo 'Hello';
  }
  else
  {
    echo 'World';
  }
} 


Otherwise you could use a switch construct to print World or HelloWorld depending if the condition was met.

PHP Code:

switch (true)
{
  case (condition):
    echo 'Hello';
 
  default:
    echo 'World';
} 


Hi... thank's a lot for the repliess..
when i read danneh3826 reply, i just remembered, if i'm not mistaken, the question stated something like this "function print always return 1 when it is executed", and i was told to not change anything besides the condition in the if (condition). maybe it just a question for testing your logic =) i don't know. however my answer for that question was "i don't think it's possible"

hmm, If it is in a function then simply run it twice but pass a different condition parameter and run the function twice, it seems you neglected to mention that in your first post.

Jamie

Interesting......