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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 |
|---|---|
| 3813 | |
| 3814 | if ( '' === trim( $text ) ) { |
| 3815 | $post = get_post( $post ); |
| 3816 | $text = get_the_content( '', false, $post ); |
| 3817 | |
| 3818 | $text = strip_shortcodes( $text ); |
| 3819 | $text = excerpt_remove_blocks( $text ); |
| 3820 | |
| 3821 | /** This filter is documented in wp-includes/post-template.php */ |
| 3822 | $text = apply_filters( 'the_content', $text ); |
| 3823 | $text = str_replace( ']]>', ']]>', $text ); |
| 3824 | |
| 3825 | /* translators: Maximum number of words used in a post excerpt. */ |
| 3826 | $excerpt_length = (int) _x( '55', 'excerpt_length' ); |
| 3827 | |
| 3828 | /** |
| 3829 | * Filters the maximum number of words in a post excerpt. |
| 3830 | * |
| 3831 | * @since 2.7.0 |