wp-hide/ignore_ob_start

Name: wp-hide/ignore_ob_start_callback
Type: Filter
Arguments:

(bool) $status – Determines whether the output buffering should be ignored.
- TRUE: Output buffering is ignored, and plugin features are disabled.
- FALSE: Output buffering is enabled, and plugin features remain active.
(string) $buffer – The current output buffer content. This can be used to inspect or determine if changes should apply.

The wp-hide/ignore_ob_start_callback filter is a WordPress filter hook provided by the WP Hide plugin. It allows developers to disable the plugin’s output buffering and processing features on specific pages or conditions.

This can be particularly useful in scenarios where the plugin’s functionality might interfere with certain dynamic behaviors or custom implementations on specific pages, such as AJAX actions, admin pages, or specific post types.


add_filter( 'wp-hide/ignore_ob_start_callback', 'custom_ignore_ob_start_callback', 10, 2 );

/**
 * Custom function to disable WP Hide output buffering conditionally.
 *
 * @param bool   $status Whether to ignore output buffering.
 * @param string $buffer The current output buffer content.
 * @return bool Modified status for ignoring output buffering.
 */
function custom_ignore_ob_start_callback( $status, $buffer ) {
    // If already set to TRUE, no changes are needed.
    if ( $status === TRUE ) {
        return $status;
    }

    // Example: Disable WP Hide features for a specific AJAX action.
    if ( isset( $_POST['action'] ) && $_POST['action'] === '_options_ajax_save' ) {
        $status = TRUE;
    }

    return $status;
}

Common Use Cases

Disabling WP Hide on AJAX Requests: Prevent the plugin from interfering with AJAX requests by checking for specific $_POST['action'] or $_GET['action'] values.
```
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
    $status = TRUE;
}
```
Excluding Admin Pages: Disable WP Hide on admin pages by checking if the request is for the WordPress dashboard.
```
if ( is_admin() ) {
    $status = TRUE;
}
```

Targeting Specific URLs: Disable WP Hide for specific pages based on the URL or query parameters.


if ( isset( $_SERVER['REQUEST_URI'] ) && strpos( $_SERVER['REQUEST_URI'], '/specific-page/' ) !== false ) {
    $status = TRUE;
}

Debugging Purposes: Temporarily disable WP Hide features when debugging conflicts or issues on specific pages.
```
if ( isset( $_GET['debug'] ) && $_GET['debug'] === 'true' ) {
    $status = TRUE;
}
```

Best Practices

Performance Considerations: Avoid unnecessary checks that can slow down the page load. Ensure your conditions are efficient and targeted.
Security: When working with $_POST or $_GET variables, always validate and sanitize input to avoid security vulnerabilities.
Debugging: Use WordPress logging functions like error_log to debug your filter logic and ensure it works as intended.

Advanced Example

The following example shows how you can disable WP Hide based on multiple conditions, such as user roles, specific URLs, or query parameters:


add_filter( 'wp-hide/ignore_ob_start_callback', 'advanced_ignore_ob_start_callback', 10, 2 );

function advanced_ignore_ob_start_callback( $status, $buffer ) {
    // If already set to TRUE, return immediately.
    if ( $status === TRUE ) {
        return $status;
    }

    // Example 1: Disable for logged-in administrators.
    if ( current_user_can( 'administrator' ) ) {
        return TRUE;
    }

    // Example 2: Disable for a specific page by checking URL.
    if ( isset( $_SERVER['REQUEST_URI'] ) && strpos( $_SERVER['REQUEST_URI'], '/custom-endpoint/' ) !== false ) {
        return TRUE;
    }

    // Example 3: Disable for AJAX actions.
    if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
        return TRUE;
    }

    // Return the original status if no conditions match.
    return $status;
}

Documentation

wp-hide/ignore_ob_start_callback