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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 |
|---|---|
| 1715 | */ |
| 1716 | function parse_blocks( $content ) { |
| 1717 | /** |
| 1718 | * Filter to allow plugins to replace the server-side block parser. |
| 1719 | * |
| 1720 | * @since 5.0.0 |
| 1721 | * |
| 1722 | * @param string $parser_class Name of block parser class. |
| 1723 | */ |
| 1724 | $parser_class = apply_filters( 'block_parser_class', 'WP_Block_Parser' ); |
| 1725 | |
| 1726 | $parser = new $parser_class(); |
| 1727 | return $parser->parse( $content ); |
| 1728 | } |
| 1729 | |
| 1730 | /** |
| 1731 | * Parses dynamic blocks out of `post_content` and re-renders them. |
| 1732 | * |
| 1733 | * @since 5.0.0 |