delete the rest of array element

vasana

I want to delete all of the elements after the element that contains '*'. I use for loop and unset() to perform this job. Is there any other way to do without using for loop or other function to use rather than unset()???
Thank you.

OhLordy

You could do it with the another array (still using a for loop) This would avoid having to loop the array after you've found

<?
$array_one; //previously set
$array_tmp=array=();
for($i=0;$array_one[$i]!="*";$i++)
{
  $array_tmp[$i]=$array_one[$i];
}
$array_one=$array_tmp;
?>

HTH
Rob

laserlight

I dont think you can avoid looping, in this case.
Another way might be to use [man]array_splice/man
Search for the '*' character, get the key, then delete the rest of the array.

e.g. (removing the '*' element as well):

//$array is the array in question
$len = count($array);
for ($i = 0; $i < $len; $i++) {
	if ($array[$i] == '*') {
		$array = array_splice($array, $i);
		break;
	}
}

steadyguy

Perhaps a bit more flexible ...

$yourArray = array(); // fill in the values, then:
$yourArray[] = ''; // to keep you from loosing the last element before the asterisk, too
foreach ($yourArray as $key=>$value) {
	if ($value == '*')
		break;
	else
		array_pop($yourArray);
}

laserlight

It is easy to achieve that effect with array_splice() too, simply by modifying to:

//$array is the array in question
$len = count($array);
for ($i = 0; $i < $len; $i++) {
    if ($array[$i] == '*') {
        $array = array_splice($array, $i + 1);
        break;
    }
}

EDIT:
actually, on second thought, this modification will result in an array out of bounds error if the asterisk is the last element of the array.

To avoid this error one would use something like:

//$array is the array in question
$len = count($array);
for ($i = 0; $i < $len; $i++) {
    if ($array[$i] == '*') {
    	$i++;
    	if ($i < $len)
        	$array = array_splice($array, $i);
        break;
    }
}

laserlight

oops, I made a fairly serious mistake in my examples.

Dont assign the result of array_splice() to $array