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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 |
|---|---|
| 509 | */ |
| 510 | function parse_blocks( $content ) { |
| 511 | /** |
| 512 | * Filter to allow plugins to replace the server-side block parser |
| 513 | * |
| 514 | * @since 5.0.0 |
| 515 | * |
| 516 | * @param string $parser_class Name of block parser class. |
| 517 | */ |
| 518 | $parser_class = apply_filters( 'block_parser_class', 'WP_Block_Parser' ); |
| 519 | |
| 520 | $parser = new $parser_class(); |
| 521 | return $parser->parse( $content ); |
| 522 | } |
| 523 | |
| 524 | /** |
| 525 | * Parses dynamic blocks out of `post_content` and re-renders them. |
| 526 | * |
| 527 | * @since 5.0.0 |