Function and usage of get_post_modified_time() in wordpress


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    The get_post_modified_time() function in WordPress is designed to retrieve the time at which a specific post was last modified. This function can be particularly useful for developers who need to display or use the modified time of posts in their themes or plugins. Here's a detailed explanation of the function and its usage:


    get_post_modified_time( string $format = 'U', bool $gmt = false, int|WP_Post $post = null, bool $translate = false ): string|int|false


    1. $format (string, optional): This parameter specifies the format in which the modified time should be returned. It accepts either:

      • 'G': for Greenwich Mean Time (GMT) in 24-hour format without leading zeros.
      • 'U': for Unix timestamp (default).
      • PHP date format: any format accepted by the PHP date() function.
      • Default: 'U'.
    2. $gmt (bool, optional): Determines whether to retrieve the time in Greenwich Mean Time (GMT) or local time.

      • Default: false (local time).
    3. $post (int|WP_Post, optional): You can specify the post by passing either:

      • A post ID (integer).
      • A WP_Post object.
      • If not specified, it uses the global $post object.
      • Default: null (global $post).
    4. $translate (bool, optional): Indicates whether to translate the time string.

      • Default: false.


    • string|int|false: The function returns:
      • A formatted date string, if a PHP date format is provided.
      • A Unix timestamp if $format is 'U' or 'G'.
      • false on failure or if the post does not exist.

    Sample Usage:

    // Example 1: Get the last modified time as Unix timestamp
    $last_modified = get_post_modified_time(); // Default format 'U'
    // Example 2: Get the last modified time in a custom format
    $last_modified_formatted = get_post_modified_time('Y-m-d H:i:s'); // e.g., '2024-01-08 12:00:00'
    // Example 3: Get the GMT modified time
    $last_modified_gmt = get_post_modified_time('Y-m-d H:i:s', true);
    // Example 4: Get the modified time of a specific post
    $post_id = 123; // Replace with a specific post ID
    $specific_post_modified = get_post_modified_time('Y-m-d', false, $post_id);
    // Example 5: Get the translated modified time
    $last_modified_translated = get_post_modified_time('F j, Y', false, null, true);

    This function is versatile and can be adjusted to suit different requirements, such as fetching the modified time in different formats, for different posts, and in different time zones.

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