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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 |
|---|---|
| 2195 | |
| 2196 | $text = strip_shortcodes( $text ); |
| 2197 | |
| 2198 | $text = apply_filters('the_content', $text); |
| 2199 | $text = str_replace(']]>', ']]>', $text); |
| 2200 | $excerpt_length = apply_filters('excerpt_length', 55); |
| 2201 | $excerpt_more = apply_filters('excerpt_more', ' ' . '[…]'); |
| 2202 | $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); |
| 2203 | } |
| 2204 | return apply_filters('wp_trim_excerpt', $text, $raw_excerpt); |
| 2205 | } |
| 2206 | |
| 2207 | /** |
| 2208 | * Trims text to a certain number of words. |
| 2209 | * |
| 2210 | * This function is localized. For languages that count 'words' by the individual |
| 2211 | * character (such as East Asian languages), the $num_words argument will apply |
| 2212 | * to the number of individual characters. |
| 2213 | * |