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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 |
---|---|
3836 | $excerpt_length = (int) apply_filters( 'excerpt_length', $excerpt_length ); |
3837 |
|
3838 | /** |
3839 | * Filters the string in the "more" link displayed after a trimmed excerpt. |
3840 | * |
3841 | * @since 2.9.0 |
3842 | * |
3843 | * @param string $more_string The string shown within the more link. |
3844 | */ |
3845 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |
3846 | $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); |
3847 | } |
3848 |
|
3849 | /** |
3850 | * Filters the trimmed excerpt string. |
3851 | * |
3852 | * @since 2.8.0 |
3853 | * |
3854 | * @param string $text The trimmed text. |