Image 将所选图像文件输入设置为来自wp前端的特征图像
场景：我允许从前端创建帖子。表单还有四个图像上传字段。我使用下面粘贴的代码进行图像附件和设置帖子缩略图Image 将所选图像文件输入设置为来自wp前端的特征图像,image,wordpress,forms,Image,Wordpress,Forms,场景：我允许从前端创建帖子。表单还有四个图像上传字段。我使用下面粘贴的代码进行图像附件和设置帖子缩略图 //insert attachments if ($_FILES) { foreach ($_FILES as $file => $array) { $newupload = insert_attachment($file,$pid); } } //attachment helper function fun
//insert attachments
if ($_FILES) {
foreach ($_FILES as $file => $array) {
$newupload = insert_attachment($file,$pid);
}
}
//attachment helper function
function insert_attachment($file_handler,$post_id,$setthumb='false') {
if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK){ return __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, $post_id );
//set post thumbnail
if ($setthumb) update_post_meta($post_id,'_thumbnail_id',$attach_id); //you will need to comment out this line if you use my solution
return $attach_id;//you will need to comment out this line if you use my solution
}
<input type="file" name="image-one" id="image-one"/>
<input type="file" name="image-two" id="image-two"/>
<input type="file" name="image-three" id="image-three"/>
最后一句话：进度报告中的代码立即为我完成了任务，即。。将第一个图像文件输入设置为特色图像/帖子缩略图，我甚至不确定这是否是最好的方法。我仍然在寻找一个解决方案，它可以提供灵活性，选择任何图像输入字段作为特色图像。如果您决定使用此功能，请记住注释掉原始代码中的倒数第二行和倒数第三行 使用_缩略图_id作为meta_键和attach_id作为meta_值保存帖子不会使该图像成为特色图像，您可以使用它来帮助您。确保你阅读了法典和那里的例子。该功能应与wordpress结合使用，这样您的功能图像将由wordpress正确创建 编辑：
我已经看过你的代码了，我想在这种情况下使用它比使用我的schetch更容易。我添加了一个文件计数和一个参数来插入附件。检查此代码，让我知道发生了什么 例如：
<?php
//insert attachments
if ($_FILES) {
array_reverse($_FILES);
$i = 0;//this will count the posts
foreach ($_FILES as $file => $array) {
if ($i == 0) $set_feature = 1; //if $i ==0 then we are dealing with the first post
else $set_feature = 0; //if $i!=0 we are not dealing with the first post
$newupload = insert_attachment($file,$pid, $set_feature);
$i++; //count posts
}
}
//attachment helper function
function insert_attachment($file_handler,$post_id,$setthumb='false') {
if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK){ return __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, $post_id );
//set post thumbnail if setthumb is 1
if ($setthumb == 1) update_post_meta($post_id,'_thumbnail_id',$attach_id);
return $attach_id;
}
?>
我们可以使用以下功能从前端设置帖子特色图像， 很简单，您需要调用此函数 post\u imgs\u更新（$new\u post\u id） 创建新帖子之后。并在functions.php中添加以下函数
if ( ! function_exists( 'post_imgs_update' ) ) :
function post_imgs_update($new_post_id) {
$data = array();
$attachment_ids = array();
// code for save featured image
if( isset( $_POST['nonce'] ) && wp_verify_nonce( $_POST['nonce'], 'image_upload' ) ){ // here nonce text is "image_upload" you need to add in form
$files = reArrayFiles($_FILES['files']);
if(!empty($_FILES['files'])){
//$i = 0;
$set_featured_img = 0 ;
foreach( $files as $file ){
if( is_array($file) ){
$attachment_id = upload_user_file( $file, basename($file['name']) );
if ( is_numeric($attachment_id) ) {
if ($set_featured_img == '0') {
set_post_thumbnail($new_post_id, $attachment_id);
$set_featured_img++;
$attachment_ids[] = $attachment_id;
}
else{
$attachment_ids[] = $attachment_id;
}
}
}
}
//add to array
$mediaurl = array();
foreach ($attachment_ids as $img_id) {
$imgurl = wp_get_attachment_url( $img_id );
$image_gallery[$img_id] = $imgurl;
}
update_post_meta( $new_post_id, '_stw_property_multi_images', $image_gallery); // 2nd arg field key
}
}
else {
$data['status'] = false;
$data['message'] = __('Nonce verify failed','realestate');
}
return $new_post_id;
}
endif;
if ( ! function_exists( 'reArrayFiles' ) ) :
function reArrayFiles(&$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;
}
endif;
if ( ! function_exists( 'upload_user_file' ) ) :
function upload_user_file( $file = array(), $title = false ) {
require_once ABSPATH.'wp-admin/includes/admin.php';
$file_return = wp_handle_upload($file, array('test_form' => false));
if(isset($file_return['error']) || isset($file_return['upload_error_handler'])){
return false;
}else{
$filename = $file_return['file'];
$attachment = array(
'post_mime_type' => $file_return['type'],
'post_content' => '',
'post_type' => 'attachment',
'post_status' => 'inherit',
'guid' => $file_return['url']
);
if($title){
$attachment['post_title'] = $title;
}
$attachment_id = wp_insert_attachment( $attachment, $filename );
require_once(ABSPATH . 'wp-admin/includes/image.php');
$attachment_data = wp_generate_attachment_metadata( $attachment_id, $filename );
wp_update_attachment_metadata( $attachment_id, $attachment_data );
if( 0 < intval( $attachment_id ) ) {
return $attachment_id;
}
}
return false;
}
endif;
function my_handle_attachment($file_handler,$post_id,$set_thu=false) {
$attachurlarray = array();
// check to make sure its a successful upload
if ($_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 );
return $attach_id;
}
如果（！function_存在（'post_imgs_update'））：
功能post\u imgs\u更新（$new\u post\u id）{
$data=array（）；
$attachment_ids=array（）；
//保存特色图片的代码
如果（isset（$_POST['nonce']）和&wp_verify_nonce（$_POST['nonce']，'image_upload'））{//这里的nonce文本是“image_upload”，您需要在表单中添加
$files=reArrayFiles（$_files['files']）；
如果（！空（$\u文件['FILES']））{
//$i=0；
$set\u特色化\u img=0；
foreach（$files作为$file）{
if（is_数组（$file））{
$attachment_id=upload_user_file（$file，basename（$file['name']）；
如果（是数字（$attachment_id））{
如果（$set\u-img=='0'）{
设置发布缩略图（$new\u post\u id，$attachment\u id）；
$set__img++；
$attachment\u id[]=$attachment\u id；
}
否则{
$attachment\u id[]=$attachment\u id；
}
}
}
}
//添加到数组
$mediaurl=array（）；
foreach（$img\u id作为附件）{
$imgurl=wp\u get\u attachment\u url（$img\u id）；
$image\u gallery[$img\u id]=$imgurl；
}
更新发布meta（$new发布id，$stw属性多个图像'，$image\u gallery）；//第二个参数字段键
}
}
否则{
$data['status']=false；
$data['message']=_uuu（'Nonce verify failed'，'realstate'）；
}
返回$new\u post\u id；
}
endif；
如果（！function_存在（'reArrayFiles'））：
函数reArrayFiles（&$file\u post）{
$file_ary=array（）；
$file_count=count（$file_post['name']）；
$file\u keys=数组\u keys（$file\u post）；
对于（$i=0；$i false））；
if（isset（$file_return['error']）| | isset（$file_return['upload_error_handler']））{
返回false；
}否则{
$filename=$file_return['file']；
$attachment=array(
'post_mime_type'=>$file_return['type']，
'发布内容'=>''，
“post_类型”=>“附件”，
“post_status”=>“inherit”，
'guid'=>$file\u返回['url']
);
如果（$标题）{
$attachment['post_title']=$title；
}
$attachment\u id=wp\u insert\u attachment（$attachment，$filename）；
require_once（ABSPATH.'wp admin/includes/image.php'）；
$attachment\u data=wp\u generate\u attachment\u元数据（$attachment\u id，$filename）；
wp_更新_附件_元数据（$attachment_id，$attachment_data）；
如果（0if ( ! function_exists( 'post_imgs_update' ) ) :
function post_imgs_update($new_post_id) {
$data = array();
$attachment_ids = array();
// code for save featured image
if( isset( $_POST['nonce'] ) && wp_verify_nonce( $_POST['nonce'], 'image_upload' ) ){ // here nonce text is "image_upload" you need to add in form
$files = reArrayFiles($_FILES['files']);
if(!empty($_FILES['files'])){
//$i = 0;
$set_featured_img = 0 ;
foreach( $files as $file ){
if( is_array($file) ){
$attachment_id = upload_user_file( $file, basename($file['name']) );
if ( is_numeric($attachment_id) ) {
if ($set_featured_img == '0') {
set_post_thumbnail($new_post_id, $attachment_id);
$set_featured_img++;
$attachment_ids[] = $attachment_id;
}
else{
$attachment_ids[] = $attachment_id;
}
}
}
}
//add to array
$mediaurl = array();
foreach ($attachment_ids as $img_id) {
$imgurl = wp_get_attachment_url( $img_id );
$image_gallery[$img_id] = $imgurl;
}
update_post_meta( $new_post_id, '_stw_property_multi_images', $image_gallery); // 2nd arg field key
}
}
else {
$data['status'] = false;
$data['message'] = __('Nonce verify failed','realestate');
}
return $new_post_id;
}
endif;
if ( ! function_exists( 'reArrayFiles' ) ) :
function reArrayFiles(&$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;
}
endif;
if ( ! function_exists( 'upload_user_file' ) ) :
function upload_user_file( $file = array(), $title = false ) {
require_once ABSPATH.'wp-admin/includes/admin.php';
$file_return = wp_handle_upload($file, array('test_form' => false));
if(isset($file_return['error']) || isset($file_return['upload_error_handler'])){
return false;
}else{
$filename = $file_return['file'];
$attachment = array(
'post_mime_type' => $file_return['type'],
'post_content' => '',
'post_type' => 'attachment',
'post_status' => 'inherit',
'guid' => $file_return['url']
);
if($title){
$attachment['post_title'] = $title;
}
$attachment_id = wp_insert_attachment( $attachment, $filename );
require_once(ABSPATH . 'wp-admin/includes/image.php');
$attachment_data = wp_generate_attachment_metadata( $attachment_id, $filename );
wp_update_attachment_metadata( $attachment_id, $attachment_data );
if( 0 < intval( $attachment_id ) ) {
return $attachment_id;
}
}
return false;
}
endif;
function my_handle_attachment($file_handler,$post_id,$set_thu=false) {
$attachurlarray = array();
// check to make sure its a successful upload
if ($_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 );
return $attach_id;
}