post_(field) │ filter-hook │ WP 1.0

Usage

add_filter( 'post_(field)', 'wp_kama_post_field_filter', 10, 3 );

/**
 * Function for `post_(field)` filter-hook.
 * 
 * @param  $value   
 * @param  $post_id 
 * @param  $context 
 *
 * @return 
 */
function wp_kama_post_field_filter( $value, $post_id, $context ){

	// filter...
	return $value;
}
$value
-
$post_id
-
$context
-

Changelog

Since 2.3.0 Introduced.

Where the hook is called

sanitize_post_field()
post_(field)
wp-includes/post.php 2897 
$value = apply_filters( "post_{$field}", $value, $post_id, $context );

Where the hook is used in WordPress

wp-admin/includes/admin-filters.php 167 
add_action( 'post_updated', array( 'WP_Privacy_Policy_Content', '_policy_page_updated' ) );
wp-includes/default-filters.php 101 
add_filter( 'post_mime_type', 'sanitize_mime_type' );
wp-includes/default-filters.php 418 
add_action( 'post_updated', 'wp_save_post_revision', 10, 1 );
wp-includes/default-filters.php 455 
add_action( 'post_updated', 'wp_check_for_changed_slugs', 12, 3 );
wp-includes/default-filters.php 459 
add_action( 'post_updated', 'wp_check_for_changed_dates', 12, 3 );
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php 1778 
add_filter( 'post_password_required', '__return_false' );
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php 1790 
remove_filter( 'post_password_required', '__return_false' );
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 1851 
add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 1889 
remove_filter( 'post_password_required', array( $this, 'check_password_required' ) );
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 368 
add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 391 
remove_filter( 'post_password_required', array( $this, 'check_password_required' ) );
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 507 
add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );