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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 |
|---|---|
| 296 | /** |
| 297 | * Filter the current comment's permalink. |
| 298 | * |
| 299 | * @since 3.6.0 |
| 300 | * |
| 301 | * @see get_comment_link() |
| 302 | * |
| 303 | * @param string $comment_permalink The current comment permalink. |
| 304 | */ |
| 305 | echo esc_url( apply_filters( 'comment_link', get_comment_link() ) ); |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * Retrieve the current comment author for use in the feeds. |
| 310 | * |
| 311 | * @since 2.0.0 |
| 312 | * |
| 313 | * @return string Comment Author |
| 314 | */ |