PHP Merging files not working - php

Question

Merging files isn't working anymore and I'm not sure why. I'm not getting any on-screen errors so I checked my error log and this is what I see:
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/phplib/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Warning: Invalid argument supplied for foreach() in /home/toolplas/public_html/main/phplib/edit_workorder.php on line 50, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Stack trace:, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/phplib/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Notice: Undefined index: affect in /home/toolplas/public_html/main/phplib/edit_workorder.php on line 80, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Stack trace:, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/phplib/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Notice: Undefined index: file in /home/toolplas/public_html/main/phplib/edit_workorder.php on line 282, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Stack trace:, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/phplib/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Warning: Invalid argument supplied for foreach() in /home/toolplas/public_html/main/phplib/edit_workorder.php on line 282, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Stack trace:, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/phplib/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Warning: mysqli_fetch_assoc() expects parameter 1 to be mysqli_result, boolean given in /home/toolplas/public_html/main/edit_workorder.php on line 176, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP Stack trace:, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
[Tue Mar 18 09:06:08 2014] [error] [client 10.0.50.12] PHP 1. {main}() /home/toolplas/public_html/main/edit_workorder.php:0, referer: https://new.tps.com/edit_workorder.php?job_num=1000&id=4173
Its not specific to one Work Order as its happening to all of them and I'm not sure why its no longer working.
Here's the code:
if(isset($wo['files_to_merge'])){
//$prev_files = $_POST['file'];
//$files = $_FILES['file'];
$folder = "/home/toolplas/public_html/main/pdf/temp/WO$wo_id/";
if(!file_exists($folder)){
mkdir($folder);
}
$files = array();
if(isset($_POST['file'])){
foreach($_POST['file'] as $key => $item){
$files[] = array('order' => $key, 'filename' => $item);
}
}
/*foreach($_FILES['file']['name'] as $key => $item){
$name = date('U') . preg_replace('/[^\w\._]+/', '', basename($item));
if(move_uploaded_file($_FILES['file']['tmp_name'][$key], $folder . $name)){
$files[] = array('order' => $key, 'filename' => $name);
} else {
debug('File Not Uploaded ' . $name);
}
}*/
foreach($_FILES['file']['error'] as $key => $error){
$tmp_name= $_FILES['file']['tmp_name'][$key];
$name = date('U') . preg_replace('/[^\w\._]+/', '', basename($_FILES['file']['name'][$key]));
if($error == UPLOAD_ERR_OK){
move_uploaded_file($tmp_name, $folder . $name);
$files[] = array('order' => $key, 'filename' => $name);
} else {
debug("Cannot Move File: $tmp_name -> $name");
debug("File Error: $error");
}
}
$sql = "DELETE FROM workorder_files WHERE workorder_id = $wo_id;";
echo $sql;
mysqli_query($dbc3, $sql) or die("Query 11: " . mysqli_error($dbc3));
foreach($files as $file){
$sql = "INSERT INTO workorder_files(workorder_id, filename, `order`) VALUES($wo_id, '" . $file['filename'] . "', " . $file['order'] . ");";
mysqli_query($dbc3, $sql) or die("Query 12: " . mysqli_error($dbc3));
}
//print_r($_FILES);
}
Employees told me it was working fine Friday and over the weekend.
This is what the form looks like,
HTML:
<tr>
<th>Files To Merge?</th>
<td><input type="checkbox" class='files_to_merge' id="files_to_merge" name='workorder[files_to_merge]' {% if files is not empty %}checked='checked'{% endif %} />{{ functions.alert('More to the right') }}</td>
</tr>
<tr>
<th>Posted By</th>
<td>{{ user.name }}<input readonly="readonly" type="hidden" name="workorder[user]" value="{{ user.id }}" /></td>
</tr>