php - combined arrays in foreach loop with if statement and query partially failing -

i have page simple list of items pulled mysql table. each of items falls 1 of 2 categories. in database have "status" column. items either in status 1 or status 0. 1 each group.

on each of items on page i've added checkbox primary key row in table. within each item in given category on page. have hidden field $_post['status'] set correspond group it's in. code below, have status array , check_list (which primary key) merging correctly key , value pairs.

i want people able check checkboxes in both groups , have status change 1 button click moving item 1 group other. have 3 items i've been bouncing around between 2 groups.

everything in group 1 works fine. can move 1 item @ time until empty, 2 items @ time, , 3 @ once no issue. group 0 not working. can move 3 items @ time no issue, can move 2 items simultaneously no problem, can move 1 item 1 @ time once. second time around, nothing budges. if select both of remaining items in group, first 1 moves.

it's strange behavior. think has way if statements executed in foreach loop, i'm not sure how solve it.

function combine_arr($a, $b) {      $acount = count($a);      $bcount = count($b);      $size = ($acount > $bcount) ? $bcount : $acount;      $a = array_slice($a, 0, $size);      $b = array_slice($b, 0, $size);      return array_combine($a, $b);  }  if(isset($_post['move'])) {     if(!empty($_post['check_list'])) {         $combined = combine_arr($_post['check_list'], $_post['status']);         foreach ($combined $key => $value) {             if($value == 1) {                 mysqli_query($con, "update items set status=0 id=$key");             }             if($value == 0) {                 mysqli_query($con, "update items set status=1 id=$key");             }         }     } } 

here relevant html on page starting button initiates action...

<form action="index.php" method="post" id="itemcheck">     <button form="itemcheck" class="button_blue" type="submit" name="move" value="move">move<span>selected</span></button> </form> 

...then 1 of checkboxes in first group...

<input type="hidden" form="itemcheck" name='status[]' value='1'> <input type="checkbox" form="itemcheck"name="check_list[]" value="<?php echo $row['id']; ?>"> 

...and checkbox in second group identical except value of hidden field.

<input type="hidden" form="itemcheck" name='status[]' value='0'> <input type="checkbox" form="itemcheck"name="check_list[]" value="<?php echo $row['id']; ?>"> 

the way you're combining 2 parameter arrays won't work. checked boxes submitted, $_post['check_list'][$n] doesn't correspond $_post['status'][$n]. should change html name of status input includes row id:

<input type="hidden" form="itemcheck" name="status[<?php echo $row['id']; ?>" value="0"> 

then can combine them this:

function combine_arr($a, $b) {     $result = array();     foreach ($a $val) {         $result[$val] = $b[$val];     }     return $result; }