Contact Form 7 – Dynamic Text Extension

تفصیل

Contact Form 7 is an excellent WordPress plugin and one of the top choices of free WordPress plugins for contact forms. Contact Form 7 – Dynamic Text Extension (DTX) makes it even more awesome by adding dynamic content capabilities. While default values in Contact Form 7 are static, DTX lets you create pre-populated fields based on other values. Some examples might include:

  • Auto-filling a URL
  • Auto-filling a post ID, title, or slug
  • Pre-populating a product number
  • Referencing other content on the site
  • Populating with post info
  • Populating with user info
  • Populating with custom fields
  • Generating unique identifiers for support tickets
  • Any value using custom shortcodes

The possibilities are endless!

WHAT DOES IT DO?

DTX comes with several built-in shortcodes that will allow the contact form to be populated from HTTPS GET variable or any info from the get_bloginfo() function, among others. See below for included shortcodes.

Don’t see the shortcode you need on the list? You can write a custom one! Any shortcode that returns a string or numeric value can be used here. The included shortcodes just cover the most common scenarios, but DTX provides the flexibility for you to grab any value you have access to programmatically.

HOW TO USE IT

After installing and activating the plugin, you will have 2 new tag types to select from when creating or editing a Contact Form 7 form: the dynamic text field and dynamic hidden field. Most of the options in their tag generators will be familiar to Contact Form 7 users but there have been some upgrades.

Dynamic Value

This fields can take a shortcode, with two important provisions:

  1. The shortcode should NOT include the normal square brackets ([ and ]). So, instead of [CF7_GET key='value'] you would use CF7_GET key='value'.
  2. Any parameters in the shortcode must use single quotes. That is: CF7_GET key='value' and not CF7_GET key="value"

Dynamic placeholder

Only available for the dynamic text form tag, this field can take static text or a shortcode. If using a shortcode, the same syntax applies from the dynamic value field. However, this field also has a few more needs:

  1. The text/shortcode must first have apostrophes converted to it’s HTML entity code, '
  2. After that, it must be URL encoded so that spaces become %20 and other non-alphanumeric characters are converted.

Read Only Attribute

Only available for the dynamic text form tag, simply check this box if you do not want to let users edit this field. It will add the readonly attribute to your form field.

INCLUDED SHORTCODES

The plugin includes several shortcodes for use with the Dynamic Text Extension right out of the box. You can write your own as well—any self-closing shortcode will work, even with attributes!

Current URL

Retrieve the current URL. This shortcode takes no parameters: CF7_URL

Your Contact Form 7 Tag would look like: [dynamictext dynamicname "CF7_URL"]

Referrer URL

Get the referral URL, if it exists. Note that this is not necessarily reliable as not all browsers send this data.

CF7 Tag: [dynamictext dynamicname "CF7_referrer"]

Post/Page Info

Retrieve information about the current post or page that the contact form is displayed on. The shortcode works as follows:

CF7_get_post_var key='title'      <-- retrieves the Post's Title
CF7_get_post_var key='slug'       <-- retrieves the Post's Slug

You can also retrieve any parameter from the global $post object. Just set that as the key value, for example post_date

The Contact Form 7 Tag would look like: [dynamictext dynamicname "CF7_get_post_var key='title'"]

Need to pull data from a different post/page? Not a problem! Just specify it’s post ID like this:

Dynamic value: CF7_get_post_var key='title' post_id='245'

Contact Form 7 Tag: [dynamictext dynamicname "CF7_get_post_var key='title' post_id='245'"]

Post Meta & Custom Fields

Retrieve custom fields from the current post/page. Just set the custom field as the key in the shortcode.

The dynamic value input becomes: CF7_get_custom_field key='my_custom_field'

And the tag looks like this: [dynamictext dynamicname "CF7_get_custom_field key='my_custom_field'"]

For the purposes of including an email address, you can obfuscate the custom field value by setting obfuscate=’on’ in the shortcode like this:
[dynamictext dynamicname “CF7_get_custom_field key=’my_custom_field’ obfuscate=’on'”]

Featured Images & Media Attachments

Retrieve the current post’s featured image, the featured image of a different page, or any attachment from the Media Library with this shortcode!

The base shortcode is simply: CF7_get_attachment which returns the absolute URL of the current page’s featured image.

By setting the post_id attribute to a post ID, you can get the featured image of another page.

By setting the id attribute to an attachment ID, you can get the absolute URL of any image uploaded to your WordPress website.

By setting the size attribute to any size registered on your website, you can get a specific image size.

Want to return the attachment ID instead of the URL? Also not a problem! Just set return='id' in the shortcode.

Most of the optional attributes can be used at the same time. For example, if I wanted to retrieve the attachment ID of a featured image for a different post, then the dynamic text form tag would look like this:
[dynamictext input_name “CF7_get_attachment post_id=’123′ return=’id'”]

If I wanted to get a specific image at a specific size, I can use this:
[dynamictext input_name “CF7_get_attachment id=’123′ size=’thumbnail'”]

The only two attributes that can’t play together is id and post_id. If both are specified, it will get the attachment specified by id and completely ignore the post_id attribute. If neither are specified, then it looks to the current featured image assigned to the global $post object.

Current User Info & User Meta

Get data about the current logged-in user.

Dynamic value: CF7_get_current_user key='user_displayname'
CF7 Tag: [dynamictext dynamicname "CF7_get_current_user"]

Valid values for key include:

  • ID
  • user_login
  • display_name
  • user_email
  • user_firstname
  • user_lastname
  • user_description

But also custom meta user keys!

For the purposes of including an email address, you can obfuscate the value by setting obfuscate=’on’ in the shortcode like this:
[dynamictext dynamicname “CF7_get_current_user key=’user_email’ obfuscate=’on'”]

Site/Blog Info

Want to grab some information from your blog like the URL or the site name? Use the CF7_bloginfo shortcode. For example, to get the site’s URL:

Enter the following into the “Dynamic Value” input: CF7_bloginfo show='url'

Your Content Form 7 Tag will look something like this: [dynamictext dynamicname "CF7_bloginfo show='url'"]

Your form’s dynamicname text input will then be pre-populated with your site’s URL

HTTP GET Variables

Want to use a variable from the PHP $_GET array? Just use the CF7_GET shortcode. For example, if you want to get the foo parameter from the url
http://mysite.com?foo=bar

Enter the following into the “Dynamic Value” input: CF7_GET key='foo'

Your Content Form 7 Tag will look something like this: [dynamictext dynamicname "CF7_GET key='foo'"]

Your form’s dynamicname text input will then be pre-populated with the value of foo, in this case, bar

HTTP POST Variables

Grab variables from the PHP $_POST array. The shortcode is much like the GET shortcode:

Dynamic value: CF7_POST key='foo'

Your Content Form 7 Tag will look something like this: [dynamictext dynamicname "CF7_POST key='foo'"]

GUID

Generate a globally unique identifier (GUID) in a form field. This is a great utility shortcode for forms that need unique identifiers for support tickets, receipts, reference numbers, etc., without having to expose personally identifiable information (PII). This shortcode takes no parameters: CF7_guid

Your Contact Form 7 Tag would look like: [dynamictext dynamicname "CF7_guid"]

Shortcode attribute: obfuscate

All of the included shortcodes have an obfuscate attribute that you can set to any truthy value to provide an additional layer of security for sensitive data.

سکرین شاٹاں

  • A screenshot of the form-tag generator for the dynamic text field.

انسٹال کرݨ

There are three (3) ways to install my plugin: automatically, upload, or manually.

Install Method 1: Automatic Installation

Automatic installation is the easiest option as WordPress handles the file transfers itself and you don’t need to leave your web browser.

  1. Log in to your WordPress dashboard.
  2. Navigate to Plugins > Add New.
  3. Where it says “Keyword” in a dropdown, change it to “Author”
  4. In the search form, type “TessaWatkinsLLC” (results may begin populating as you type but my plugins will only show when the full name is there)
  5. Once you’ve found my plugin in the search results that appear, click the Install Now button and wait for the installation process to complete.
  6. Once the installation process is completed, click the Activate button to activate my plugin.

Install Method 2: Upload via WordPress Admin

This method involves is a little more involved. You don’t need to leave your web browser, but you’ll need to download and then upload the files yourself.

  1. Download my plugin from WordPress.org; it will be in the form of a zip file.
  2. Log in to your WordPress dashboard.
  3. Navigate to Plugins > Add New.
  4. Click the Upload Plugin button at the top of the screen.
  5. Select the zip file from your local file system that was downloaded in step 1.
  6. Click the Install Now button and wait for the installation process to complete.
  7. Once the installation process is completed, click the Activate button to activate my plugin.

Install Method 3: Manual Installation

This method is the most involved as it requires you to be familiar with the process of transferring files using an SFTP client.

  1. Download my plugin from WordPress.org; it will be in the form of a zip file.
  2. Unzip the contents; you should have a single folder named contact-form-7-dynamic-text-extension.
  3. Connect to your WordPress server with your favorite SFTP client.
  4. Copy the folder from step 2 to the /wp-content/plugins/ folder in your WordPress directory. Once the folder and all of its files are there, installation is complete.
  5. Now log in to your WordPress dashboard.
  6. Navigate to Plugins > Installed Plugins. You should now see my plugin in your list.
  7. Click the Activate button under my plugin to activate it.

ہرہک دے سوال

Please check out the FAQ on our website.

ریویو

جنوری 26, 2023 1 reply
I have been using CF7 DTX since 2016 (my first post about DTX was using it for a refund request form and involved custom shortcodes). Chris of SevenSpark.com wrote a great plugin. In the very short time since AuRise Creative adopted the plugin a number of very interesting and useful enhancements have been added. This is bringing new life to this plugin (not that it was dying - the core functionality is timeless). Good luck!
سارے 93 ریویو پڑھو

Contributors & Developers

“Contact Form 7 – Dynamic Text Extension” is open source software. The following people have contributed to this plugin.

حصہ پاوݨ آلے

“Contact Form 7 – Dynamic Text Extension” has been translated into 15 locales. Thank you to the translators for their contributions.

“Contact Form 7 – Dynamic Text Extension” دا آپݨی زبان وچ ترجمہ کرو۔

ڈیویلپمنٹ وچ دلچسپی ہے؟

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

تبدیلی لاگ

3.1.3

  • Fix: Fixed the syntax error that reappeared in 3.1.2.

3.1.2

Release Date: January 27, 2023

  • Fix: updated the text domain to match the plugin slug
  • Fix: updated all of the translated strings to match

3.1.1

Release Date: January 26, 2023

  • Fix: Fixed the syntax error: Parse error: syntax error, unexpected ) in /wp-content/plugins/contact-form-7-dynamic-text extension/includes/admin.php on line 212

3.1.0

Release Date: January 25, 2023

  • Feature: Added the CF7_get_attachment shortcode. For usage details, see the knowledge base
  • Feature: Added the CF7_guid shortcode. For usage details, see the knowledge base.
  • Feature: Added the dynamic placeholder option to the dynamic form tags that allows you to specify dynamic or static placeholder content while also setting dynamic values. For usage details, see the knowledge base
  • Feature: Added a “required” dynamic hidden tag (e.g., [dynamichidden* ...]). It is identical to the original dynamic hidden tag (as in the field is not actually validated as required because it is hidden); it just doesn’t break your website if you use it. This feature was requested by a user.
  • Feature: Added the obfuscate attribute to all included shortcodes

3.0.0

Release Date: January 17, 2023

  • Major: Plugin was adopted by AuRise Creative
  • Major: All functions use the wpcf7dtx_ prefix
  • Feature: Added a post_id key for the CF7_get_post_var shortcode so you can specify a different post
  • Feature: Updated the CF7_get_current_user shortcode to be able to pull data from user metadata too
  • Feature: Added the “obfuscate” option to CF7_get_custom_field shortcode
  • Feature: Added the “placeholder” checkbox option to the dynamictext tag
  • Fix: Added additional validation for post ID input
  • Fix: Added additional validation for the key attribute in the CF7_GET and CF7_POST shortcodes
  • Fix: Shortcode keys are normalized into lowercase before processing
  • Security: Sanitizing URLs for the CF7_URL and CF7_referrer shortcode outputs
  • Feature/Security: Added a allowed_protocols attribute to the CF7_URL and CF7_referrer shortcodes that defaults to http,https

2.0.3

2.0.2.1

  • Update changelog properly for 2.0.2 changes:

2.0.2

  • Update deprecated get_currentuserinfo() function to wp_get_current_user()
  • Update deprecated functions from WPCF7_add_shortcode to WPCF7_add_formtag and class from WPCF7_Shortcode to WPCF7_FormTag to comply with CF7 4.6 changes

2.0.1

  • Hook change to guarantee the plugin only runs when Contact Form 7 is present in the admin (avoids errors if Contact Form 7 is disabled, or if there is a plugin sequencing issue)

2.0

  • Complete rewrite for Compatibility with Contact Form 7 v4

1.2

  • Compatibility update for Contact Form 7 v3.9

1.1.0.2

  • Updated to work with Contact Form 7 v3.7.x

1.1.0.1

  • Removed undefined variable warning

1.1

  • Updated for compatibility with Contact Form 7 v3.6
  • Added Referrer shortcode

1.0.4.2

  • Fixed a bug that created repeating square brackets around dynamic text values in cases where the form doesn’t validate and JavaScript is deactivated.

1.0.4.1

  • Removed trailing whitespace to fix “Headers already sent” errors

1.0.4

  • Added Current User Info shortcode
  • Added Post Custom Field shortcode (with obfuscation support)
  • Added Hidden Field capability

1.0.3

  • Added $_POST shortcode
  • Added current post/page variable shortcode
  • Added current URL shortcode

1.0.2

  • Fixed administrative control panel dependency issue

1.0.1

  • Fixed dependency issue.