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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 |
|---|---|
| 313 | |
| 314 | /** |
| 315 | * Filters the Read More link text. |
| 316 | * |
| 317 | * @since 2.8.0 |
| 318 | * |
| 319 | * @param string $more_link_element Read More link element. |
| 320 | * @param string $more_link_text Read More text. |
| 321 | */ |
| 322 | $output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink() . "#more-{$post->ID}\" class=\"more-link\">$more_link_text</a>", $more_link_text ); |
| 323 | $output = force_balance_tags( $output ); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | if ( $preview ) // Preview fix for JavaScript bug with foreign languages. |
| 328 | $output = preg_replace_callback( '/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output ); |
| 329 | |
| 330 | return $output; |
| 331 | } |