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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 |
|---|---|
| 1552 | if ( rest_is_field_included( 'content.protected', $fields ) ) { |
| 1553 | $data['content']['protected'] = (bool) $post->post_password; |
| 1554 | } |
| 1555 | if ( rest_is_field_included( 'content.block_version', $fields ) ) { |
| 1556 | $data['content']['block_version'] = block_version( $post->post_content ); |
| 1557 | } |
| 1558 | |
| 1559 | if ( rest_is_field_included( 'excerpt', $fields ) ) { |
| 1560 | /** This filter is documented in wp-includes/post-template.php */ |
| 1561 | $excerpt = apply_filters( 'the_excerpt', apply_filters( 'get_the_excerpt', $post->post_excerpt, $post ) ); |
| 1562 | $data['excerpt'] = array( |
| 1563 | 'raw' => $post->post_excerpt, |
| 1564 | 'rendered' => post_password_required( $post ) ? '' : $excerpt, |
| 1565 | 'protected' => (bool) $post->post_password, |
| 1566 | ); |
| 1567 | } |
| 1568 | |
| 1569 | if ( $has_password_filter ) { |
| 1570 | // Reset filter. |