wp-includes/post.php:2823Sanitizes every post field.
$postobject|WP_Post|array$contextstringoptional'display'object|WP_Post|arrayfunction sanitize_post( $post, $context = 'display' ) { if ( is_object( $post ) ) { // Check if post already filtered for this context. if ( isset( $post->filter ) && $context == $post->filter ) { return $post; } if ( ! isset( $post->ID ) ) { $post->ID = 0; } foreach ( array_keys( get_object_vars( $post ) ) as $field ) { $post->$field = sanitize_post_field( $field, $post->$field, $post->ID, $context ); } $post->filter = $context; } elseif ( is_array( $post ) ) { // Check if post already filtered for this context. if ( isset( $post['filter'] ) && $context == $post['filter'] ) { return $post; } if ( ! isset( $post['ID'] ) ) { $post['ID'] = 0; } foreach ( array_keys( $post ) as $field ) { $post[ $field ] = sanitize_post_field( $field, $post[ $field ], $post['ID'], $context ); } $post['filter'] = $context; } return $post;}Introduced in 2.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/post.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.