How do I solve this error?
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: admin/tour.php
Line Number: 81
this is line 81:
$files = $this->multi_upload->go_upload();
var_dump($files);
$images = array();
foreach ($files as $img) { //line 81
$images[] = $img['file'];
}
this my $files in top code:
function go_upload($field = 'userfile') {
$CI =& get_instance();
// Is $_FILES[$field] set? If not, no reason to continue.
if ( ! isset($_FILES[$field]['name'][0]))
{
$CI->upload->set_error('upload_no_file_selected');
return FALSE;
} else
{
$num_files = count($_FILES[$field]['name']) -1;
$file_list = array();
$error_hold = array();
$error_upload = FALSE;
}
// Is the upload path valid?
if ( ! $CI->upload->validate_upload_path())
{
// errors will already be set by validate_upload_path() so just return FALSE
return FALSE;
}
for ($i=0; $i < $num_files; $i++) {
// $fname = $_FILES[$field]['name'][$i];
// echo "$fname
<br><br>
";
$error_hold[$i] = FALSE;
// Was the file able to be uploaded? If not, determine the reason why.
if ( ! is_uploaded_file($_FILES[$field]['tmp_name'][$i]))
{
$error = ( ! isset($_FILES[$field]['error'][$i])) ? 4 : $_FILES[$field]['error'][$i];
switch($error)
{
case 1: // UPLOAD_ERR_INI_SIZE
$error_hold[$i] = 'upload_file_exceeds_limit';
break;
case 2: // UPLOAD_ERR_FORM_SIZE
$error_hold[$i] = 'upload_file_exceeds_form_limit';
break;
case 3: // UPLOAD_ERR_PARTIAL
$error_hold[$i] = 'upload_file_partial';
break;
case 4: // UPLOAD_ERR_NO_FILE
$error_hold[$i] = 'upload_no_file_selected';
break;
case 6: // UPLOAD_ERR_NO_TMP_DIR
$error_hold[$i] = 'upload_no_temp_directory';
break;
case 7: // UPLOAD_ERR_CANT_WRITE
$error_hold[$i] = 'upload_unable_to_write_file';
break;
case 8: // UPLOAD_ERR_EXTENSION
$error_hold[$i] = 'upload_stopped_by_extension';
break;
default :
$error_hold[$i] = 'upload_no_file_selected';
break;
}
return FALSE;
}
// Set the uploaded data as class variables
$CI->upload->file_temp = $_FILES[$field]['tmp_name'][$i];
$CI->upload->file_name = $_FILES[$field]['name'][$i];
$CI->upload->file_size = $_FILES[$field]['size'][$i];
$CI->upload->file_type = preg_replace("/^(.+?);.*$/", "\1", $_FILES[$field]['type'][$i]);
$CI->upload->file_type = strtolower($CI->upload->file_type);
$CI->upload->file_ext = $CI->upload->get_extension($_FILES[$field]['name'][$i]);
// Convert the file size to kilobytes
if ($CI->upload->file_size > 0)
{
$CI->upload->file_size = round($CI->upload->file_size/1024, 2);
}
// Is the file type allowed to be uploaded?
if ( ! $CI->upload->is_allowed_filetype())
{
$error_hold[$i] = 'upload_invalid_filetype';
}
// Is the file size within the allowed maximum?
if ( ! $CI->upload->is_allowed_filesize())
{
$error_hold[$i] = 'upload_invalid_filesize';
}
// Are the image dimensions within the allowed size?
// Note: This can fail if the server has an open_basdir restriction.
if ( ! $CI->upload->is_allowed_dimensions())
{
$error_hold[$i] = 'upload_invalid_dimensions';
}
// Sanitize the file name for security
$CI->upload->file_name = $CI->upload->clean_file_name($CI->upload->file_name);
// Remove white spaces in the name
if ($CI->upload->remove_spaces == TRUE)
{
$CI->upload->file_name = preg_replace("/s+/", "_", $CI->upload->file_name);
}
/*
* Validate the file name
* This function appends an number onto the end of
* the file if one with the same name already exists.
* If it returns false there was a problem.
*/
$CI->upload->orig_name = $CI->upload->file_name;
if ($CI->upload->overwrite == FALSE)
{
$CI->upload->file_name = $CI->upload->set_filename($CI->upload->upload_path, $CI->upload->file_name);
if ($CI->upload->file_name === FALSE)
{
$error_hold[$i] = TRUE;
}
}
/*
* Move the file to the final destination
* To deal with different server configurations
* we'll attempt to use copy() first. If that fails
* we'll use move_uploaded_file(). One of the two should
* reliably work in most environments
*/
if ( ! @copy($CI->upload->file_temp, $CI->upload->upload_path.$CI->upload->file_name))
{
if ( ! @move_uploaded_file($CI->upload->file_temp, $CI->upload->upload_path.$CI->upload->file_name))
{
$error_hold[$i] = 'upload_destination_error';
}
}
/*
* Run the file through the XSS hacking filter
* This helps prevent malicious code from being
* embedded within a file. Scripts can easily
* be disguised as images or other file types.
*/
if ($CI->upload->xss_clean == TRUE)
{
$CI->upload->do_xss_clean();
}
if ($error_hold[$i]) {
$error_upload = TRUE;
// echo $error_hold[$i];
} else {
if ($imageVar = $this->multiple_image_properties($CI->upload->upload_path.$CI->upload->file_name)) {
$file_list[] = array(
'name' => $CI->upload->file_name,
'file' => $CI->upload->upload_path.$CI->upload->file_name,
'size' => $CI->upload->file_size,
'ext' => $CI->upload->file_ext,
'image_type' => $imageVar->image_type,
'height' => $imageVar->height,
'width' => $imageVar->width
);
} else {
$file_list[] = array(
'name' => $CI->upload->file_name,
'file' => $CI->upload->upload_path.$CI->upload->file_name,
'size' => $CI->upload->file_size,
'type' => $CI->upload->file_type,
'ext' => $CI->upload->file_ext,
);
}
}
// For debugging
/*
if (strlen($error_hold[$i]) > 1) {
print_r($error_hold);
}
*/
} // end for loop
// Add error display for individual files
if ($error_upload) {
$this->set_error($error_hold);
return FALSE;
} else {
return $file_list;
}
}
