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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 |
|---|---|
| 1974 | * @type array $attrs Attributes from block comment delimiters. |
| 1975 | * @type array[] $innerBlocks List of inner blocks. An array of arrays that |
| 1976 | * have the same structure as this one. |
| 1977 | * @type string $innerHTML HTML from inside block comment delimiters. |
| 1978 | * @type array $innerContent List of string fragments and null markers where |
| 1979 | * inner blocks were found. |
| 1980 | * } |
| 1981 | * @param WP_Block|null $parent_block If this is a nested block, a reference to the parent block. |
| 1982 | */ |
| 1983 | $pre_render = apply_filters( 'pre_render_block', null, $parsed_block, $parent_block ); |
| 1984 | if ( ! is_null( $pre_render ) ) { |
| 1985 | return $pre_render; |
| 1986 | } |
| 1987 | |
| 1988 | $source_block = $parsed_block; |
| 1989 | |
| 1990 | /** |
| 1991 | * Filters the block being rendered in render_block(), before it's processed. |
| 1992 | * |