<?php
$partylist = ['party1','party2','party3'];
$position = ['position1','position2','position3'];
$members= ['name1','name2','name3','name4','name5','name6','name7','name8','name9'];
$partymembers = array_chunk($members,count($position));
$partyArray=[];
foreach($partylist as $key1 => $party){
$partyArray[$party] = [];
foreach($position as $key2 => $p){
$partyArray[$party][$p] = isset($partymembers[$key1][$key2]) ? $partymembers[$key1][$key2] : '';
}
}
echo "<pre>".print_r($partyArray,1)."</pre>";
preferences:
28.52 ms | 405 KiB | 5 Q