如何將多個文件附加到wordpress的一個php表單插件

Question

我有一個插件，我正在用一個發送電子郵件的php表單。表單中的所有內容都發送了我需要發送的值，但是有一個文件附件區域，用戶可以在其中附加多個文件。

HTML表單（通過回聲在插件）

function html_form_code() { 

    echo '<form action="' . esc_url($_SERVER['REQUEST_URI']) . '" method="post">'; 
    echo '<div class="row">'; 
    echo '<div class="col-xs-12 col-md-4">'; 
    echo '<input class="form-control" type="text" placeholder="Name" label="Name" name="cf-name" pattern="[a-zA-Z0-9 ]+" value="' . (isset($_POST["cf-name"]) ? esc_attr($_POST["cf-name"]) : '') . '" size="40" />'; 
    echo '</div>'; 
    echo '<div class="col-xs-12 col-md-4">'; 
    echo '<input class="form-control" type="text" placeholder="company" label="company" name="cf-company" value="' . (isset($_POST["cf-company"]) ? esc_attr($_POST["cf-company"]) : '') . '" size="40" />'; 
    echo '</div>'; 
    echo '<div class="col-xs-12 col-md-4">'; 
    echo '<input class="form-control" type="text" placeholder="phone" label="phone" name="cf-phone" pattern="[0-9 ]+" value="' . (isset($_POST["cf-phone"]) ? esc_attr($_POST["cf-phone"]) : '') . '" size="40" />'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '<div class="row">'; 
    echo '<div class="col-xs-12">'; 
    echo '<input class="form-control" type="text" placeholder="email" label="email" name="cf-email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$" value="' . (isset($_POST["cf-email"]) ? esc_attr($_POST["cf-email"]) : '') . '" size="40" />'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '<div class="row">'; 
    echo '<div class="col-xs-12">'; 
    echo '<label for="formDeliverables[]">Select the countries that you have visited:</label><br>'; 
    echo '<select name="formDeliverables[]">'; 
    echo '<option value="New Website">New Website</option>'; 
    echo '<option value="New Web Features">New Web Features</option>'; 
    echo '<option value="Website Stabilization">Website Stabilization</option>'; 
    echo '<option value="3rd Party Email Integration">3rd Party Email Integration</option>'; 
    echo '<option value="Web Virus Removal">Web Virus Removal</option>'; 
    echo '<option value="Web Security Review">Web Security Review</option>'; 
    echo '</select>'; 
    echo '</div>'; 
    echo '</div>'; 


    echo '<div class="row checkboxes">'; 
    echo '<div class="col-sm-12 col-md-6">'; 
    echo '<label>Copy Writing:</label><br>'; 
    echo '<input type="checkbox" name="copy[]" value="Copy provided" size="40" /><label for="Copy provided" name="check" class="checks">I will provide copy.</label>'; 
    echo '<input type="checkbox" name="copy[]" value="Copy needed" size="40" /><label for="Copy needed" name="check" class="checks">I need copy.</label>'; 
    echo '<input type="checkbox" name="copy[]" value="Not sure about copy" size="40" /><label for="Not sure about copy" name="check" class="checks">I\'m not sure.</label>'; 
    echo '</div>'; 


    echo '<div class="col-sm-12 col-md-6">'; 
    echo '<label>Design Services:</label><br>'; 
    echo '<input type="checkbox" name="design[]" value="Design provided" size="40" /><label for="Design provided" name="check" class="checks">I will need design services.</label>'; 
    echo '<input type="checkbox" name="design[]" value="Design needed" size="40" /><label for="Design needed" name="check" class="checks">I will not need design services.</label>'; 
    echo '<input type="checkbox" name="design[]" value="Not sure about design" size="40" /><label for="Not sure about design" name="check" class="checks">I\'m not sure.</label>'; 
    echo '</div>'; 

    echo '<div class="col-sm-12 col-md-6">'; 
    echo '<label>Illustration:</label><br>'; 
    echo '<input type="checkbox" name="illustration[]" value="Illustration needed" size="40" /><label for="Illustration needed" name="check" class="checks">I need illustration services.</label>'; 
    echo '<input type="checkbox" name="illustration[]" value="Illustration not needed" size="40" /><label for="Illustration not needed" name="check" class="checks">I will not need illustration services.</label>'; 
    echo '<input type="checkbox" name="illustration[]" value="Not sure about illustration" size="40" /><label for="Not sure about illustration" name="check" class="checks">I\'m not sure.</label>'; 
    echo '</div>'; 

    echo '<div class="col-sm-12 col-md-6">'; 
    echo '<label>Photography:</label><br>'; 
    echo '<input type="checkbox" name="photography[]" value="photography needed" size="40" /><label for="photography needed" name="check" class="checks">I need photography services.</label>'; 
    echo '<input type="checkbox" name="photography[]" value="photography not needed" size="40" /><label for="photography not needed" name="check" class="checks">I will not need photography services.</label>'; 
    echo '<input type="checkbox" name="photography[]" value="Not sure about photography" size="40" /><label for="Not sure about photography" name="check" class="checks">I\'m not sure.</label>'; 
    echo '</div>'; 

    echo '</div>'; 


    echo '<div class="container">'; 
    echo '<div class="row">'; 
    echo '<label class="control-label">Timelines:</label>'; 
    echo '</div>'; 
    echo '<div class="row">'; 
    echo '<div class="col-sm-6">'; 
    echo '<input class="form-control datepicker" id="date" name="date_from" placeholder="Select the start date" type="text"/>'; 
    echo '</div>'; 

    echo '<div class="col-sm-6">'; 
    echo '<input class="form-control datepicker" id="date_end" name="date_end" placeholder="Select the end date" type="text"/>'; 
    echo '</div>'; 
    echo '</div>'; 

    echo '<div class="container">'; 
    echo '<div class="row budget">'; 
    echo '<div class="col-xs-12">'; 
    echo '<label for="price">Budget:</label>'; 
    echo '<div class="double-point-slide">'; 
    echo '<div id="slider-3"></div>'; 
    echo '<input type="text" id="price" name="price" style="border:0; color:#000; font-weight:bold;">'; 
    echo '<input type="text" id="price-two" name="price-two" style="border:0; color:#000; font-weight:bold;">'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '</div>'; 


    echo '<div class="container table">'; 
    echo '<div class="row description">'; 
    echo '<div class="col-xs"> '; 
    echo '<textarea id="projectDescription" placeholder="Describe Your Project" name="cf-message"></textarea>'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '<div class="row add-attachments">'; 
    echo '<div class="col-xs text-right" >'; 
    echo '<label><input id="file" type="file" name="file[]" multiple="true"><span>+ Add Inspiration Image</span></label>'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '<div class="row attachments" style="display:none">'; 
    echo '<div class="col-xs">'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '</div>'; 


    echo '<div class="container">'; 
    echo '<div class="row">'; 
    echo '<div class="col-xs-12">'; 
    echo '<input type="submit" class="final" name="cf-submitted" value="Submit"/>'; 
    echo '</div>'; 
    echo '</div>'; 
    echo '</div>'; 



    echo '</form>'; 


} 

這裏是發送郵件的功能。

function deliver_mail() { 

    // if the submit button is clicked, send the email 
    if (isset($_POST['cf-submitted'])) { 

      // sanitize form values 
     $name = sanitize_text_field($_POST["cf-name"]); 
     $email = sanitize_email($_POST["cf-email"]); 
     $phone = "Phone: " . sanitize_text_field($_POST["cf-phone"]); 
     $company = "Company: " . sanitize_text_field($_POST["cf-company"]); 
     $deliverablesArr = $_POST["formDeliverables"]; 
     $deliverables = "Deliverables: " . implode($deliverablesArr); 
     $message = "Message: " . esc_textarea($_POST["cf-message"]); 
     $date_from = $_POST['date_from']; 
     $date_end = $_POST['date_end']; 
     $date_span = "Timeline: " . $date_from . " - " . $date_end; 
     $price = $_POST['price']; 
     $price_two = $_POST['price-two']; 
     $budget = $price . " - " . $price_two; 
     $subject = "Someone needs " . $deliverables . "from a-three.cc!"; 





     $copy = 'None'; 
     if(isset($_POST['copy']) && is_array($_POST['copy']) && count($_POST['copy']) > 0){ 
      $copy = implode(', ', $_POST['copy']); 
     } 

     $design = 'None'; 
     if(isset($_POST['design']) && is_array($_POST['design']) && count($_POST['design']) > 0){ 
      $design = implode(', ', $_POST['design']); 
     } 

     $illustration = 'None'; 
     if(isset($_POST['illustration']) && is_array($_POST['illustration']) && count($_POST['illustration']) > 0){ 
      $illustration = implode(', ', $_POST['illustration']); 
     } 

     $photography = 'None'; 
     if(isset($_POST['photography']) && is_array($_POST['photography']) && count($_POST['photography']) > 0){ 
      $photography = implode(', ', $_POST['photography']); 
     } 



     // get the blog administrator's email address 
     $to = get_option('admin_email'); 




     $body = '<html><body>'; 
     $body .= '<table rules="all" style="border-color: #666;" cellpadding="10">'; 
     $body .= "<tr style='background: #eee;'><td><strong>Name:</strong> </td><td>" . $name . "</td></tr>"; 
     $body .= "<tr><td><strong>Email:</strong> </td><td>" . $email . "</td></tr>"; 
     $body .= "<tr><td><strong>Company:</strong> </td><td>" . $company . "</td></tr>"; 
     $body .= "<tr><td><strong>Phone:</strong> </td><td>" . $phone . "</td></tr>"; 
     $body .= "<tr><td><strong>Deliverables:</strong> </td><td>" . $deliverables . "</td></tr>"; 
     $body .= "<tr><td style='font-size: 16px'><strong>Services Needed</strong> </td><td></td></tr>"; 
     $body .= "<tr><td><strong>Copy:</strong> </td><td>" . $copy . "</td></tr>"; 
     $body .= "<tr><td><strong>Design:</strong> </td><td>" . $design . "</td></tr>"; 
     $body .= "<tr><td><strong>Illustration:</strong> </td><td>" . $illustration . "</td></tr>"; 
     $body .= "<tr><td><strong>Photography:</strong> </td><td>" . $photography . "</td></tr>"; 
     $body .= "<tr><td style='font-size: 16px'><strong>Timeline</strong> </td><td></td></tr>"; 
     $body .= "<tr><td><strong>Timeline:</strong> </td><td>" . $date_span . "</td></tr>"; 
     $body .= "<tr><td style='font-size: 16px'><strong>Budget</strong> </td><td></td></tr>"; 
     $body .= "<tr><td><strong>Budget:</strong> </td><td>" . $budget . "</td></tr>"; 
     $body .= "<tr><td style='font-size: 16px'><strong>Project Description</strong> </td><td></td></tr>"; 
     $body .= "<tr><td><strong>Project Description:</strong> </td><td>" . $message . "</td></tr>"; 


     // If email has been process for sending, display a success message 
     if (wp_mail($to, $subject, $body)) { 
      echo '<div>'; 
      echo '<p>Thanks for contacting us, expect a response soon.</p>'; 
      echo '</div>'; 
     } else { 
      echo 'An unexpected error occurred'; 
     } 
    } 
} 

我已經有「文件[]」作爲名字的那場，因爲我想我需要給每個文件添加到一個數組，然後吐出來的，可以解釋的方式的電子郵件。我嘗試了很多東西，但不能完成這個工作。

如何在wordpress中將多個文件附加到php表單中進行電子郵件發送？

Answer 1

您錯過了最後一個參數​​，它可以是一個數組。 您指定要使用 file[]，但我無法在輸入名稱中看到它。

$attachments = array(WP_CONTENT_DIR . '/uploads/file_to_attach.zip'); 

wp_mail($to, $subject, $message, $headers, $attachments); 

來自實例wp_mail()

您可以使用函數move_uploaded_file()，將文件複製服務器和unlink()它只是後，郵件被髮送的。

Answer 2

所以我最終解決了這個問題。感謝@Benoti帶領我朝着正確的方向前進。這是安全性添加到上傳過程中的最終產品。

function deliver_mail() { 

    // if the submit button is clicked, send the email 
    if (isset($_POST['cf-submitted'])) { 

     $errors = array(); 

     if (empty($_POST["cf-name"])){ 
      $nameError = "Name is required"; 
     } else { 
      $name = sanitize_text_field($_POST["cf-name"]); 
     } 

      // sanitize form values 
     $name = sanitize_text_field($_POST["cf-name"]); 
     $email = sanitize_email($_POST["cf-email"]); 
     $phone = "Phone: " . sanitize_text_field($_POST["cf-phone"]); 
     $company = "Company: " . sanitize_text_field($_POST["cf-company"]); 
     $deliverablesArr = $_POST["formDeliverables"]; 
     $deliverables = implode($deliverablesArr); 
     $body = esc_textarea($_POST["cf-body"]); 

     $date_from = "None"; 
     if (empty($_POST["date_from"])){ 
      $errors[] = 'Please choose a start date.'; 
     } else { 
      $date_from = $_POST['date_from']; 
     } 

     $date_end = "None"; 
     if (empty($_POST["date_end"])){ 
      $errors[] = 'Please choose an end date.'; 
     } else { 
      $date_end = $_POST['date_end']; 
     } 



     $date_span = $date_from . " - " . $date_end; 
     $price = $_POST['price']; 
     $price_two = $_POST['price-two']; 
     $budget = $price . " - " . $price_two; 
     $subject = "Someone needs " . $deliverables . " from a-three.cc!"; 

     $copy = 'None'; 
     if(isset($_POST['copy']) && is_array($_POST['copy']) && count($_POST['copy']) > 0){ 
      $copy = implode(', ', $_POST['copy']); 
     } else { 
      $errors[] = 'Please choose if copy is needed.'; 
     } 

     $design = 'None'; 
     if(isset($_POST['design']) && is_array($_POST['design']) && count($_POST['design']) > 0){ 
      $design = implode(', ', $_POST['design']); 
     } else { 
      $errors[] = 'Please choose if design is needed.'; 
     } 

     $illustration = 'None'; 
     if(isset($_POST['illustration']) && is_array($_POST['illustration']) && count($_POST['illustration']) > 0){ 
      $illustration = implode(', ', $_POST['illustration']); 
     } else { 
      $errors[] = 'Error: Please choose if Illustration is needed'; 
     } 

     $photography = 'None'; 
     if(isset($_POST['photography']) && is_array($_POST['photography']) && count($_POST['photography']) > 0){ 
      $photography = implode(', ', $_POST['photography']); 
     } else { 
      $errors[] = 'Please choose if Photography is needed.'; 
     } 

     // get the blog administrator's email address 
     $to = get_option('admin_email'); 

     $message = '<html><body>'; 
     $message .= '<table rules="all" style="border: 1px solid #666; width: 600px;" cellpadding="10">'; 
     $message .= "<tr style='background: #eee;'><td style='font-size: 16px' colspan='2'><strong><center>Contact from A-Three</center></strong> </td></tr>"; 
     $message .= "<tr><td><strong>Name:</strong> </td><td>" . $name . "</td></tr>"; 
     $message .= "<tr><td><strong>Email:</strong> </td><td>" . $email . "</td></tr>"; 
     $message .= "<tr><td><strong>Company:</strong> </td><td>" . $company . "</td></tr>"; 
     $message .= "<tr><td><strong>Phone:</strong> </td><td>" . $phone . "</td></tr>"; 
     $message .= "<tr><td><strong>Deliverables:</strong> </td><td>" . $deliverables . "</td></tr>"; 
     $message .= "<tr style='background: #eee;'><td style='font-size: 16px' colspan='2'><strong><center>Services Needed</center></strong> </td></tr>"; 
     $message .= "<tr><td><strong>Copy:</strong> </td><td>" . $copy . "</td></tr>"; 
     $message .= "<tr><td><strong>Design:</strong> </td><td>" . $design . "</td></tr>"; 
     $message .= "<tr><td><strong>Illustration:</strong> </td><td>" . $illustration . "</td></tr>"; 
     $message .= "<tr><td><strong>Photography:</strong> </td><td>" . $photography . "</td></tr>"; 
     $message .= "<tr style='background: #eee;'><td style='font-size: 16px' colspan='2'><strong><center>Timeline</center></strong> </td></tr>"; 
     $message .= "<tr><td><strong>Timeline:</strong> </td><td>" . $date_span . "</td></tr>"; 
     $message .= "<tr style='background: #eee;'><td style='font-size: 16px' colspan='2'><strong><center>Budget</center></strong> </td></tr>"; 
     $message .= "<tr><td><strong>Budget:</strong> </td><td>" . $budget . "</td></tr>"; 
     $message .= "<tr style='background: #eee;'><td style='font-size: 16px' colspan='2'><strong><center>Project Description</center></strong> </td></tr>"; 
     $message .= "<tr><td><strong>Project Description:</strong> </td><td>" . $body . "</td></tr>"; 

     $headers = 'From: ' . $email . "\r\n" . 'Reply-To: ' . $email . "\r\n"; 
     $headers .= "MIME-Version: 1.0\r\n"; 
     $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n"; 

這裏是文件上傳部分（仍然是相同的郵件功能）。

 //file upload function 
     $total = count($_FILES['upload']['name']); 
     $attachments = ""; 
     $attachmentString = ""; 
     $attachmentSet = false; 
     //variables for validation 
     $maxsize = 2097152; //just over 2mb 
     $whitelist = array(
      'image/jpeg', 
      'image/jpg', 
      'image/gif', 
      'image/png' 
     ); 



     if(file_exists($_FILES['upload']['tmp_name'][0]) || is_uploaded_file($_FILES['upload']['tmp_name'][0])) { 

      //hey look the attachment is set! 
      $attachmentSet = True; 

      // Loop through each file 
      for($i=0; $i<$total; $i++) { 
       //Get the temp file path 
       $tmpFilePath = $_FILES['upload']['tmp_name'][$i]; 

       //Make sure we have a filepath 
       if ($tmpFilePath != ""){ 
       $uploaddir = 'var/www/uploadsfolderpath/'#changed for security 
       wp_mkdir_p($uploaddir); 

       //rename file 
       $orig_name = $_FILES["upload"]["name"][$i]; 
       $temp = explode(".", $orig_name); 
       //give name with original name added by user plus hash random value 
       $newfilename = array_values($temp)[0] . md5(array_values($temp)[0]) . '.' . end($temp); 

       //variables per each iteration 
       //Setup our new file path 
       $newFilePath = $uploaddir . $newfilename; //renamed file added to new file path 
       $file_type = $_FILES['upload']['type'][$i]; //returns the mimetype 
       $imageinfo = getimagesize($_FILES['upload']['tmp_name'][$i]);//returns size of image 
       $fileName = strtolower($_FILES['upload']['name'][$i]); 
       $upload_extension = explode(".", $fileName); 
       $upload_extension = end($upload_extension);//gets just the extension 

       #check for appropriate size with php.ini 
       $POST_MAX_SIZE = ini_get('post_max_size'); 
       $mul = substr($POST_MAX_SIZE, -1); 
       $mul = ($mul == 'M' ? 1048576 : ($mul == 'K' ? 1024 : ($mul == 'G' ? 1073741824 : 1))); 
       if ($_SERVER['CONTENT_LENGTH'] > $mul*(int)$POST_MAX_SIZE && $POST_MAX_SIZE) $error = true; 
       $max_file_size_in_bytes = 2140907;    // 2MB in bytes 
       if(count($errors) === 0) 
       { 
        #restrict the limit 
        $file_size = @filesize($tmpFilePath); 
        if (!$file_size || $file_size > $max_file_size_in_bytes) { 
         $errors[] = 'File too large. File must be less than 2 GB.'; 
        } 
       } 
       else 
       { 
        $errors[] = 'File too large. File must be less than 2 GB.'; 
       } 

       //check if isn't a type and if has an image size 
       if($imageinfo['mime'] != 'image/gif' && $imageinfo['mime'] != 'image/png' && $imageinfo['mime'] != 'image/jpeg' && isset($imageinfo)) 
       { 
        $errors[] = 'Invalid file type. Only JPG, GIF and PNG types are accepted.'; 
       } 
       //file type verficatio 
       if(!in_array($file_type, $whitelist) && !empty($_FILES["upload"]["type"])) { 
        $errors[] = 'Invalid file type. Only PDF, JPG, GIF and PNG types are accepted.'; 
       } 



       //all conditions passed, upload files! 
       if(count($errors) === 0) { 
        //Upload the file into the temp dir 
        if(move_uploaded_file($tmpFilePath, $newFilePath)) { 
        chmod($newFilePath, 0644); 
        $attachments[$i] = $newFilePath; 
        //make string for sending to email 
        $attachmentString[$i] = $newFilePath; 
        $headers .= "Content-Disposition: attachment; filename = \"" . $attachmentString[$i] . "\"\n\n"; 
        } 
       } 
       } 
      }//end of loop 
     } 

     // If email has been process for sending, display a success message 
     if(count($errors) === 0) { 
      if (wp_mail($to, $subject, $message, $headers, $attachments)) { 
      echo '<div class="success"><p>Success! Thanks for contacting us, expect a response soon.</p></div>'; 

       if ($attachmentSet) { 
        //clean up your temp files after sending 
        foreach($attachments as $att) { 
         @unlink($att); 
        }; 
       } 
      } 
     } 
     else { 
      echo '<div class="error">'; 
      foreach($errors as $error) { 
       echo '<p>' .$error . '</p>'; 
       } 
      echo '</div>'; 
     } 



    } 
} 

建議表示歡迎，因爲這是我第一次建立這樣的事情在PHP :)