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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2869 | /** |
| 2870 | * Filters the dbDelta SQL queries for inserting or updating. |
| 2871 | * |
| 2872 | * Queries filterable via this hook contain "INSERT INTO" or "UPDATE". |
| 2873 | * |
| 2874 | * @since 3.3.0 |
| 2875 | * |
| 2876 | * @param string[] $iqueries An array of dbDelta insert or update SQL queries. |
| 2877 | */ |
| 2878 | $iqueries = apply_filters( 'dbdelta_insert_queries', $iqueries ); |
| 2879 | |
| 2880 | $text_fields = array( 'tinytext', 'text', 'mediumtext', 'longtext' ); |
| 2881 | $blob_fields = array( 'tinyblob', 'blob', 'mediumblob', 'longblob' ); |
| 2882 | $int_fields = array( 'tinyint', 'smallint', 'mediumint', 'int', 'integer', 'bigint' ); |
| 2883 | |
| 2884 | $global_tables = $wpdb->tables( 'global' ); |
| 2885 | $db_version = $wpdb->db_version(); |
| 2886 | $db_server_info = $wpdb->db_server_info(); |
| 2887 | |