javascript - 将数组从 HTML 表单传递到 PHP，然后传递到 WordPress

Question

我试图将数组从表单传递到 php，一切正常，直到在 php 文件中到达 Foreach 循环，在其中仅运行一次(在所有其他循环周期 var_dump 给出 NULL)。

HTML:

 <div id="dynamicInput">
                 <div class="project">
                    <span>Project images</span> <input id="pr_img" multiple type='file' name='my_file_upload0[]'></br>
                      <input id="pr_name" type='text' placeholder='Project name' name='pname[]'> 
                      <textarea id="pr_desc"  cols="40" rows="8" placeholder='Project description' name='pdescr[]'></textarea>
                </div>


            <script>
            var counter = 1;
            var limit = 99;
            function addInput(divName){
                 if (counter == limit)  {
                      alert("You have reached the limit of adding " + counter + " inputs");
                 }
                 else {
                      var newdiv = document.createElement('div');
                      newdiv.className = "project";
                      newdiv.innerHTML = " <span>Project images</span> <input multiple id='pr_img' type='file' name='my_file_upload" + counter + "[]'></br><input id='pr_name' type='text' placeholder='Project name' name='pname[]'> <textarea  cols='40' rows='8' type='text' id='pr_desc' placeholder='Project description' name='pdescr[]'></textarea>";
                      document.getElementById(divName).appendChild(newdiv);
                      counter++;
                 }
            }
        </script>

            </div>

PHP:

 require_once( ABSPATH . 'wp-admin/includes/image.php' );
        require_once( ABSPATH . 'wp-admin/includes/file.php' );
        require_once( ABSPATH . 'wp-admin/includes/media.php' );


        $combo = array_combine($_POST[pname], $_POST[pdescr]);

        $countt=0;

        foreach ($combo as $nam => $descri) {

                     $projectid =wp_insert_post( array(
        'post_title'     => $nam,
        'post_type'      => 'Projects',
        'comment_status' => 'closed',
        'ping_status'    => 'closed',
        'post_content'   => $descri,
        'post_status'    => 'publish',
        'post_author'    => $userrid,
        'menu_order'     => 0,

    ) );  
/*---------------------This is the place where it doesnt work------------*/ 

               $files = $_FILES["my_file_upload".$countt.""];
                  ++$countt;

/*-----------------------------------------------------------------------*/             
                 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_image_upload" => $file); 
                        //var_dump($_FILES);
                                foreach ($_FILES as $file => $array) {              
                                   // $newupload = my_handle_attachment($file,$post_id); 
                          $attach_id = media_handle_upload( $file, 0);


                                }

                            } 
                            unset($files);
                        } 

                    add_post_meta( $projectid, 'project_pics',  $attach_id, true );
                  if ( is_wp_error( $attachment_id ) ) {
                    echo "Error while uploading images";
                  } else {


                  }

}

编辑:$_FILES数组内容:

 ["my_file_upload0"]=>
  array(5) {
  ["name"]=>
array(2) {
  [0]=>
  string(6) "bg.bmp"
  [1]=>
  string(6) "bg.png"
}
["type"]=>
array(2) {
  [0]=>
  string(9) "image/bmp"
  [1]=>
  string(9) "image/png"
}
["tmp_name"]=>
array(2) {
  [0]=>
  string(38) "/customers/c/e/b/********/phpO2lni7"
  [1]=>
  string(38) "/customers/c/e/b/********/phpcIObqF"
}
["error"]=>
array(2) {
  [0]=>
  int(0)
  [1]=>
  int(0)
}
["size"]=>
array(2) {
  [0]=>
  int(64)
  [1]=>
  int(10946)
  }
}
["my_file_upload1"]=>
 array(5) {
 ["name"]=>
 array(2) {
  [0]=>
  string(12) "job-icon.png"
  [1]=>
  string(8) "nova.png"
}
["type"]=>
array(2) {
  [0]=>
  string(9) "image/png"
  [1]=>
  string(9) "image/png"
}
["tmp_name"]=>
array(2) {
  [0]=>
  string(38) "/customers/c/e/b/********/phpZKskyd"
  [1]=>
  string(38) "/customers/c/e/b/********/phpbMlgIL"
}
["error"]=>
array(2) {
  [0]=>
  int(0)
  [1]=>
  int(0)
}
["size"]=>
array(2) {
  [0]=>
  int(15213)
  [1]=>
  int(10906)
}

Answer 1

查看$_FILES的内容。我的猜测是您只会看到 my_file_upload0，就像在循环中您尝试循环遍历 my_file_upload0、my_file_upload1、 my_file_upload2 等

您需要循环遍历 $_FILES['my_file_upload0'] 本身，因为这应该是一个数组，其中包含表单上文件输入中选择的所有文件。

   foreach($_FILES['my_file_upload0'] as $key => $files) {
      // Code
   }

编辑 - 为了清楚起见，我实际上建议将 my_file_upload0 的名称更改为 my_file_upload。

第二次编辑 - 我已经复制了您对此处提供的数组所做的操作 - http://phpfiddle.org/main/code/j88g-i2ci这会毫无问题地执行 for 循环两次。