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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 |
|---|---|
| 2813 | /** |
| 2814 | * Filters the dbDelta SQL queries for inserting or updating. |
| 2815 | * |
| 2816 | * Queries filterable via this hook contain "INSERT INTO" or "UPDATE". |
| 2817 | * |
| 2818 | * @since 3.3.0 |
| 2819 | * |
| 2820 | * @param string[] $iqueries An array of dbDelta insert or update SQL queries. |
| 2821 | */ |
| 2822 | $iqueries = apply_filters( 'dbdelta_insert_queries', $iqueries ); |
| 2823 | |
| 2824 | $text_fields = array( 'tinytext', 'text', 'mediumtext', 'longtext' ); |
| 2825 | $blob_fields = array( 'tinyblob', 'blob', 'mediumblob', 'longblob' ); |
| 2826 | $int_fields = array( 'tinyint', 'smallint', 'mediumint', 'int', 'integer', 'bigint' ); |
| 2827 | |
| 2828 | $global_tables = $wpdb->tables( 'global' ); |
| 2829 | $db_version = $wpdb->db_version(); |
| 2830 | $db_server_info = $wpdb->db_server_info(); |
| 2831 | |