ordered lists....

[ednark]

ok this may seem a little stupid... but i need to use an order lists (yup an array)

i have written my own insert_at() and move_to() functions... but was wondering if the was a php way to do this that i was just missing.... here is what im working on....

thought this might be something fun for the forum to try an optimize.... and this is part of a larger class so no griping about how oop is overkill here

a minimalized account follows

class OrderedRows()
{
    var $rows;

class OrderedRows()
{
 $this->rows = array();
}


function addRow( $row, $position=0 )
{
    $end = count($this->rows);
    $this->rows[] = $row;
    $this->moveRow($end,$position);
    return TRUE;
}

function moveRow( $position, $new_position )
{
    /// bound position
    if ( $position < 0 ) {
        $posititon = 0;
    }
    $max = count($this->rows)-1;
    if ( $position > $max ) {
        $posititon = $max;
    }

    if ( $position == $new_position ) { 
        return;
    }

    $direction = ($position-$new_position)<0 ? -1 : 1;

    /// save element at starting
    $popped = $this->rows[$position];

    /// shift each row between $starting and $done one place in the correct $direction 
    /// this will overwrite $starting
    for ( $i = $position; $i != $new_position; $i-=$direction ) {
        $this->rows[$i] = $this->rows[($i-$direction)];
    }
    $this->rows[$new_position] = $popped;
    return TRUE;
}

[ednark]

ah ednark,

i understand your problem,

why not try something like this

$arr = array('a','b','c','d','e','f'); 

$count  = count($arr);
$insert = 3;
$char   = 'X';

$arr2 = array_merge( array_slice($arr,0,$insert), $char, array_slice($arr,$insert,$count) );

print_r($arr);
print_r($arr2);