I have a WordPress form plugin and I use media_handle_upload to upload the files and get there ids directly and attached its ids to the post as a meta date, I used the following to did that:
The HTML of the form field is:
<input type="file" name="my_file_upload" id="my_file_upload">
And the php code was:
$attach_id = media_handle_upload( 'my_file_upload', $post_id );
if ( is_numeric( $attach_id ) ) {
update_post_meta( $post_id, '_my_file_upload', $attach_id );
}
And everything was work perfectly.
Now I am trying to upload multiple files my HTML code is:
<input type="file" name="my_file_upload[]" id="my_file_upload[]" multiple="multiple">
But I cant make the media_handle_upload function work with multiple files upload.
Any help will be appreciated.
Answers:
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Method 1
here
if you use custom template past this in the begining
<?php
if( 'POST' == $_SERVER['REQUEST_METHOD'] ) {
if ( $_FILES ) {
$files = $_FILES["my_file_upload"];
foreach ($files['name'] as $key => $value) {
if ($files['name'][$key]) {
$file = array(
'name' => $files['name'][$key],
'type' => $files['type'][$key],
'tmp_name' => $files['tmp_name'][$key],
'error' => $files['error'][$key],
'size' => $files['size'][$key]
);
$_FILES = array ("my_file_upload" => $file);
foreach ($_FILES as $file => $array) {
$newupload = my_handle_attachment($file,$pid);
}
}
}
}
}
?>
in function.php
function my_handle_attachment($file_handler,$post_id,$set_thu=false) {
// check to make sure its a successful upload
if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK) __return_false();
require_once(ABSPATH . "wp-admin" . '/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
$attach_id = media_handle_upload( $file_handler, $post_id );
if ( is_numeric( $attach_id ) ) {
update_post_meta( $post_id, '_my_file_upload', $attach_id );
}
return $attach_id;
}
soure http://www.kvcodes.com/2013/12/create-front-end-multiple-file-upload-wordpress/
Method 2
If you want to implement this without using the functions file, you can use the streamlined version I came up with. This is the tested code works 100%
<form id="file_upload" method="post" action="#" enctype="multipart/form-data">
<input type="file" name="my_file_upload[]" multiple="multiple">
<input name="my_file_upload" type="submit" value="Upload" />
</form>
Place the PHP code on the page where the submit happens. In my case on the same page as the form action is set to “#”
<?php if ($_SERVER['REQUEST_METHOD'] == 'POST') {
require_once( ABSPATH . 'wp-admin/includes/image.php' );
require_once( ABSPATH . 'wp-admin/includes/file.php' );
require_once( ABSPATH . 'wp-admin/includes/media.php' );
$files = $_FILES["my_file_upload"];
foreach ($files['name'] as $key => $value) {
if ($files['name'][$key]) {
$file = array(
'name' => $files['name'][$key],
'type' => $files['type'][$key],
'tmp_name' => $files['tmp_name'][$key],
'error' => $files['error'][$key],
'size' => $files['size'][$key]
);
$_FILES = array("upload_file" => $file);
$attachment_id = media_handle_upload("upload_file", 0);
if (is_wp_error($attachment_id)) {
// There was an error uploading the image.
echo "Error adding file";
} else {
// The image was uploaded successfully!
echo "File added successfully with ID: " . $attachment_id . "<br>";
echo wp_get_attachment_image($attachment_id, array(800, 600)) . "<br>"; //Display the uploaded image with a size you wish. In this case it is 800x600
}
}
}
} ?>
This method will include the required files only once when the form submit is done instead of including them each time the function is called through foreach loop
Method 3
Thanks @shady-m-rasmy
I used the code you mentionned, and it seems that the second foreach loop (below – in the custom template part) is not necessary as it is only executed once.
foreach ($_FILES as $file => $array) {
$newupload = my_handle_attachment($file,$pid);
}
So it only leaves with
$newupload = my_handle_attachment( "my_file_upload", $pid);
Method 4
Multiple entries for the same meta key
$values = [ 'red', 'yellow', 'blue', 'pink' ];
foreach( $values as $value ) {
// This method uses `add_post_meta()` instead of `update_post_meta()`
add_post_meta( $item_id, 'color', $value );
}
Method 5
HTML
<input type="file" id="id_termine_attachment" multiple="multiple" name="id_termine_attachment[]" value="" size="25" />
PHP
function upload_file($_FILES) {
if (!empty($_FILES['id_termine_attachment'])) {
$supported_types = array(
'application/pdf',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'application/msword',
'image/gif',
'image/jpeg',
'image/png',
'application/zip'
);
$file_arr = reArrayFiles($_FILES['id_termine_attachment']);
$file_urls = [];
foreach ($file_arr as $file) {
$arr_file_type = wp_check_filetype(basename($file['name']));
$uploaded_type = $arr_file_type['type'];
if (in_array($uploaded_type, $supported_types)) {
$upload = wp_upload_bits($file['name'], null, file_get_contents($file['tmp_name']));
if (isset($upload['error']) && $upload['error'] != 0) {
wp_die('There was an error uploading your file. The error is: ' . $upload['error']);
} else {
array_push($file_urls, $upload['url']);
} // end if/else
} else {
wp_die("This filetyp is not available!");
}
}
update_post_meta($post_id, 'id_termine_attachment', $file_urls);
}
}
function reArrayFiles(&$file_post) {
$file_ary = array();
$file_count = count($file_post['name']);
$file_keys = array_keys($file_post);
for ($i=0; $i<$file_count; $i++) {
foreach ($file_keys as $key) {
$file_ary[$i][$key] = $file_post[$key][$i];
}
}
return $file_ary;
}
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0