Function and usage of get_comment_date() in wordpress


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    The get_comment_date() function in WordPress is used to retrieve the date on which a specific comment was posted. This function is particularly useful when you need to display or manipulate the date information of comments within WordPress themes or plugins. Here's a detailed explanation of the function and its usage:

    Function Signature

    get_comment_date( string $format = '', int|WP_Comment $comment_id )


    1. $format (string, optional):

      • This parameter specifies the format in which the date should be returned.
      • It uses the PHP date format standards.
      • If this parameter is not provided or left empty, it defaults to the WordPress 'date_format' option set in the site's settings.
      • Example formats:
        • 'Y-m-d' for Year-Month-Day (e.g., 2024-01-07)
        • 'F j, Y' for a full textual representation of the month, day, and year (e.g., January 7, 2024)
      • Default value: '' (the site's date format setting)
    2. $comment_id (int | WP_Comment, optional):

      • This can be either the numerical ID of the comment or a WP_Comment object.
      • If this parameter is not provided or left empty, the function will use the current comment in the WordPress Loop.
      • Default: Current comment

    Return Value

    • Type: string
    • Description: The function returns the date of the specified comment as a string formatted according to the provided format. If no format is specified, it uses the default WordPress date format setting.

    Sample Usage

    Here's an example of how to use get_comment_date() in a WordPress theme or plugin:

    Example 1: Default Usage

    // Retrieve the date of the current comment in default format
    echo get_comment_date();

    Example 2: Custom Date Format

    // Retrieve the date of the current comment in 'Y-m-d' format
    echo get_comment_date('Y-m-d');

    Example 3: Specific Comment ID

    // Retrieve the date of a specific comment (ID = 123) in default format
    echo get_comment_date('', 123);

    Example 4: Specific Comment with Custom Format

    // Retrieve the date of a specific comment (ID = 123) in 'F j, Y' format
    echo get_comment_date('F j, Y', 123);

    Practical Application

    This function is commonly used in WordPress themes when displaying comments. It allows theme developers to show when each comment was posted, and to format the date in a way that matches the site's design and locale settings. For instance, it can be used in a comments loop to display the date alongside each comment.

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