last foreach iteration

sgalonska

Hello,

can anybody tell me how I can find out inside a foreach if my current value is the last value? Especially when iterating over associative arrays with text keys.
Would be great ;-).

thx
Sebastian

herve

using count() on the array ?

something like this :

$num_rows = count($myarray);

$i=1;
foreach (....)
{
    $i++;
    if ($i == $num_rows)
    {
       // Last value
    }
}

RyanJones

sgalonska wrote:
Hello,

can anybody tell me how I can find out inside a foreach if my current value is the last value? Especially when iterating over associative arrays with text keys.
Would be great ;-).

thx
Sebastian

Associative arrays will be trickey, I don't think you can reference too them via an ID for the reference so what I'm about to tell you will not work for them.

If you are using a foreach statement all you need to do is keep a cunter variable within the loop, incrimenting with each pass of the loop like so:

<?php
  $SomeArray  = array('q', 'w', 'e', 'r', 't', 'y');
  $Counter      = 0;
  echo '    ';
  foreach ($SomeArray as $Element)
  {
    echo $SomeArray[$Counter];
    ++$Counter;
  }
?>

As for associative arrays you'll need to copy the array into an indexed array for it to work 🙁

Live example of above code: here, here (IncID's)

Edit: this may also be of use.

Cheers,

Ryan Jones

sgalonska

well, i tried the following:

foreach ($this->aOrderColumns as $sCurrentColumn) {
	$sQuery .= $sCurrentColumn;
	if ($sCurrentColumn !== end($this->aOrderColumns)) $sQuery .= ',';
}

and it worked ;-)

herve

You can also delete the ',' just after the foreach loop 🙂

foreach ($this->aOrderColumns as $sCurrentColumn) {
    $sQuery .= "$sCurrentColumn,";
} 
$sQuery = substr($sQuery,0,-1); // Delete the last ','

so you avoid to test for each line inside the loop.

sgalonska

I know I know, but I wanted something more sophisticated ;-)