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Compare one set of data to an entire array and find matchs


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Hi I just cant in over a week figure out how I would go about setting up this work time sheet, that displays my employees work times and find any conflicting work hours. But man I have been stumped on getting this code to work! Could anyone fix, or even better teach me a much better way to acomplish this?

function time_sheet_day($DB){
    $manager_id = $_SESSION['man_id'];
    $today = date('l');
    $year = date('Y');
    $ddate = @date();
    $date = new DateTime($ddate);
    $week = $date->format("W");
    $page = "<table><tbody><tr><th>ID</th><th>Crew</th><th>Position</th><th>Start Time</th><th>End Time</th></tr>";
    $time_sheet_db = $DB->query("SELECT {$today},member_id FROM calendar WHERE manager_id = {$manager_id} AND Week = {$week} AND Year = {$year}");
    $time_sheet = [];
    while($time = $time_sheet_db->fetcharray(SQLITE3_ASSOC)){
        $hours = explode('-', $time[$today]);
        $time_sheet[] = array($time['member_id'], $hours[0], $hours[1]);
    $member_info = [];
    $time_check = $time_sheet;
    $conflicts = [];
    $rater = 0;
    foreach($time_check as $checker){
        if($checker[0] == $time_check[$rater][0]){
            $rater = $rater + 1;
        if($checker[1] == $time_check[$rater][1]){
            $conflicts[] = array($checker[0], $time_check[$rater][0], $checker[1]);
        $rater = $rater + 1;
    foreach($time_sheet as $member){
        $member_info_db = $DB->query("SELECT username,crew,postion FROM Members WHERE ID = {$member[0]}");
        $member_info = $member_info_db->fetcharray(SQLITE3_ASSOC);
        $found_conflict=array_find($conflicts, $member[0]);
        if($found_conflict == False){
            $page .= "<tr><td>{$member_info['username']}</td><td>{$member_info['crew']}</td><td>{$member_info['postion']}</td><td>{$member[1]}</td><td>{$member[2]}</td></tr>";
        } else {
        $page .= "<tr style='background-color:#FF0000'><td>{$member_info['username']}</td><td>{$member_info['crew']}</td><td>{$member_info['postion']}</td><td>{$member[1]}</td><td>{$member[2]}</td></tr>";


$page .= '</tbody></table>';
echo ($page);

function array_find($parents, $searched) {
  if (empty($searched) || empty($parents)) {
    return false;

  foreach ($parents as $key => $value) {
    $exists = true;
    foreach ($searched as $skey => $svalue) {
      $exists = ($exists && IsSet($parents[$key][$skey]) && $parents[$key][$skey] == $svalue);
    if($exists){ return $key; }

  return false;
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