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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 |
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2902 | $text = str_replace(']]>', ']]>', $text); |
2903 |
|
2904 | /** |
2905 | * Filter the number of words in an excerpt. |
2906 | * |
2907 | * @since 2.7.0 |
2908 | * |
2909 | * @param int $number The number of words. Default 55. |
2910 | */ |
2911 | $excerpt_length = apply_filters( 'excerpt_length', 55 ); |
2912 | /** |
2913 | * Filter the string in the "more" link displayed after a trimmed excerpt. |
2914 | * |
2915 | * @since 2.9.0 |
2916 | * |
2917 | * @param string $more_string The string shown within the more link. |
2918 | */ |
2919 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |
2920 | $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); |