how to test if array pointer is at first element in foreach loop

Question

In a for loop it is simple...

for ( $idx = 0 ; $idx < count ( $array ) ; $idx ++ )
{
    if ( $idx == 0 )
    {
        // This is the first element of the array.
    }
}

How the hell is this done in a foreach loop?

is there a function like is_first() or something?

I'm looking for something like:

foreach ( $array as $key => $value )
{
    if ( /* is the first element */ )
    {
        // do logic on first element
    }
    else
    {
        // all other logic
    }
}

I was thinking I could set a bool like $is_first = true; and then as soon as the loops been iterated once, set the bool to false.

But php has a lot of pre-built functions and id rather use that... or another way...

The whole bool way seem almost like... cheeting :s

Cheers,

Alex

Answer 1

I usually do this :

$isFirst = true;
foreach($array as $key => $value){
  if($isFirst){
    //Do first stuff
  }else{
    //Do other stuff
  }
  $isFirst = false;
}

Works with any type of array, obviously.