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Code Snippets lets you inject custom PHP, CSS, and JavaScript into your site without editing theme files or functions.php. Snippets are stored in the wp_wmp_snippets database table and each has an independent enable/disable toggle.
Code Snippets was added in v1.4.0. The Monaco Editor was added in v1.8.0.
PHP snippets are executed via eval() on every page load when enabled. Only enable code you trust completely.

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How snippets execute

TypeHookEffect
PHPinitCode runs on every front-end and admin page load
CSSwp_headStyles are output in the <head> of every page
JavaScriptwp_footerScript is output before the closing </body> tag

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The snippet list

All snippets are shown as cards in the main list. Each card shows:
  • An enable/disable toggle switch — flipping this activates or deactivates the snippet without deleting it.
  • The snippet title and type badge (PHP, CSS, or JS).
  • An Active badge when the snippet is currently enabled.
  • An optional description.
  • A preview of the code.
  • The last updated date.
The edit (pencil) and delete (trash) icon buttons appear on each card.

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Creating a PHP snippet

1

Open the New Snippet dialog

Click New Snippet in the top-right corner of the Code Snippets page.
2

Enter a title

Type a descriptive title in the Title field, e.g. Disable comments on posts.
3

Select PHP as the type

In the Type dropdown, select PHP.
4

Write your code

The Monaco Editor opens with PHP syntax highlighting. Write or paste your PHP code. Do not include an opening <?php tag — the plugin wraps your code automatically.
add_filter( 'comments_open', '__return_false', 20 );
add_filter( 'pings_open', '__return_false', 20 );
remove_post_type_support( 'post', 'comments' );
5

Add an optional description

The Description field is optional but helps document what the snippet does.
6

Click Create Snippet

Click Create Snippet. The snippet is saved and appears in the list in a disabled state.
7

Enable the snippet

Flip the toggle switch on the snippet card to activate it. The Active badge appears and the code begins running immediately on the next page load.

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The Monaco Editor

The code editor is powered by the Monaco Editor — the same engine used by VS Code. It provides:
  • Syntax highlighting for PHP, CSS, and JavaScript
  • Line numbers
  • Word wrap
  • Automatic layout
The editor automatically switches syntax highlighting when you change the Type dropdown.

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Disabling vs. deleting

Flipping the toggle to off disables a snippet without deleting it. Disabled snippets remain in the database and can be re-enabled at any time. Use the delete (trash) icon only when you want to permanently remove a snippet.

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