get_meta_sql()
Function: Given a meta query, generates SQL clauses to be appended to a main query.
Source: wp-includes/meta.php:1245
is_protected_meta
Filter Hook: Filters whether a meta key is considered protected.
Source: wp-includes/meta.php:1297
_get_meta_table()
Function: Retrieves the name of the metadata table for the specified object type.
Source: wp-includes/meta.php:1261
sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}
Filter Hook: Filters the sanitization of a specific meta key of a specific meta type and subtype.
Source: wp-includes/meta.php:1331
is_protected_meta()
Function: Determines whether a meta key is considered protected.
Source: wp-includes/meta.php:1283
sanitize_{$object_type}_meta_{$meta_key}
Filter Hook: Filters the sanitization of a specific meta key of a specific meta type.
Source: wp-includes/meta.php:1348
sanitize_meta()
Function: Sanitizes meta value.
Source: wp-includes/meta.php:1313
register_meta_args
Filter Hook: Filters the registration arguments when registering meta.
Source: wp-includes/meta.php:1447
register_meta()
Function: Registers a meta key.
Source: wp-includes/meta.php:1399
registered_meta_key_exists()
Function: Checks if a meta key is registered.
Source: wp-includes/meta.php:1590