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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 |
|---|---|
| 2886 | * Returning a non-null value from the filter will effectively short-circuit |
| 2887 | * checking the DB for the charset, returning that value instead. |
| 2888 | * |
| 2889 | * @since 4.2.0 |
| 2890 | * |
| 2891 | * @param string|WP_Error|null $charset The character set to use, WP_Error object |
| 2892 | * if it couldn't be found. Default null. |
| 2893 | * @param string $table The name of the table being checked. |
| 2894 | */ |
| 2895 | $charset = apply_filters( 'pre_get_table_charset', null, $table ); |
| 2896 | if ( null !== $charset ) { |
| 2897 | return $charset; |
| 2898 | } |
| 2899 | |
| 2900 | if ( isset( $this->table_charset[ $tablekey ] ) ) { |
| 2901 | return $this->table_charset[ $tablekey ]; |
| 2902 | } |
| 2903 | |
| 2904 | $charsets = array(); |