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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 |
|---|---|
| 235 | |
| 236 | /** |
| 237 | * Filters the content of a single block. |
| 238 | * |
| 239 | * @since 5.0.0 |
| 240 | * |
| 241 | * @param string $block_content The block content about to be appended. |
| 242 | * @param array $block The full block, including name and attributes. |
| 243 | */ |
| 244 | $block_content = apply_filters( 'render_block', $block_content, $this->parsed_block ); |
| 245 | |
| 246 | /** |
| 247 | * Filters the content of a single block. |
| 248 | * |
| 249 | * The dynamic portion of the hook name, `$name`, refers to |
| 250 | * the block name, e.g. "core/paragraph". |
| 251 | * |
| 252 | * @since 5.7.0 |
| 253 | * |