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Description

Retrieves the full permalink for the current post or post ID.

Usage

$string|false = get_permalink( $post, $leavename );

Parameters

$post

( int|WP_Post ) optional – Optional. Post ID or post object. Default is the global `$post`.

$leavename

( bool ) optional – Optional. Whether to keep post name or page name. Default false.

Returns

string|false The permalink URL. False if the post does not exist.

Source

File name: wordpress/wp-includes/link-template.php
Lines:

function get_permalink( $post = 0, $leavename = false ) {
  $rewritecode = array(
    '%year%',
    '%monthnum%',
    '%day%',
    '%hour%',
    '%minute%',
    '%second%',
    $leavename ? '' : '%postname%',
    '%post_id%',
    '%category%',
    '%author%',
    $leavename ? '' : '%pagename%',
  );

  if ( is_object( $post ) && isset( $post->filter ) && 'sample' === $post->filter ) {
    $sample = true;
  } else {
    $post   = get_post( $post );
    $sample = false;
  }

  if ( empty( $post->ID ) ) {
    return false;
  }

  if ( 'page' === $post->post_type ) {
    return get_page_link( $post, $leavename, $sample );
  } elseif ( 'attachment' === $post->post_type ) {
    return get_attachment_link( $post, $leavename );
  } elseif ( in_array( $post->post_type, get_post_types( array( '_builtin' => false ) ), true ) ) {
    return get_post_permalink( $post, $leavename, $sample );
  }

  $permalink = get_option( 'permalink_structure' );

  
/**
 * Filters the permalink structure for a post before token replacement occurs.
 *
 * Only applies to posts with post_type of 'post'.
 *
 * @since 3.0.0
 *
 * @param string  $permalink The site's permalink structure.
 * @param WP_Post $post      The post in question.
 * @param bool    $leavename Whether to keep the post name.
 */
  $permalink = apply_filters( 'pre_post_link', $permalink, $post, $leavename );

  if (
    $permalink &&
    ! wp_force_plain_post_permalink( $post )
  ) {

    $category = '';
    if ( strpos( $permalink, '%category%' ) !== false ) {
      $cats = get_the_category( $post->ID );
      if ( $cats ) {
        $cats = wp_list_sort(
          $cats,
          array(
            'term_id' => 'ASC',
          )
        );

        
/**
 * Filters the category that gets used in the %category% permalink token.
 *
 * @since 3.5.0
 *
 * @param WP_Term  $cat  The category to use in the permalink.
 * @param array    $cats Array of all categories (WP_Term objects) associated with the post.
 * @param WP_Post  $post The post in question.
 */
        $category_object = apply_filters( 'post_link_category', $cats[0], $cats, $post );

        $category_object = get_term( $category_object, 'category' );
        $category        = $category_object->slug;
        if ( $category_object->parent ) {
          $category = get_category_parents( $category_object->parent, false, '/', true ) . $category;
        }
      }
      // Show default category in permalinks,
      // without having to assign it explicitly.
      if ( empty( $category ) ) {
        $default_category = get_term( get_option( 'default_category' ), 'category' );
        if ( $default_category && ! is_wp_error( $default_category ) ) {
          $category = $default_category->slug;
        }
      }
    }

    $author = '';
    if ( strpos( $permalink, '%author%' ) !== false ) {
      $authordata = get_userdata( $post->post_author );
      $author     = $authordata->user_nicename;
    }

    // This is not an API call because the permalink is based on the stored post_date value,
    // which should be parsed as local time regardless of the default PHP timezone.
 

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