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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 |
|---|---|
| 2424 | |
| 2425 | if ( ! is_single() && $paged > 1 ) { |
| 2426 | /** |
| 2427 | * Filters the anchor tag attributes for the previous posts page link. |
| 2428 | * |
| 2429 | * @since 2.7.0 |
| 2430 | * |
| 2431 | * @param string $attributes Attributes for the anchor tag. |
| 2432 | */ |
| 2433 | $attr = apply_filters( 'previous_posts_link_attributes', '' ); |
| 2434 | return '<a href="' . previous_posts( false ) . "\" $attr>" . preg_replace( '/&([^#])(?![a-z]{1,8};)/i', '&$1', $label ) . '</a>'; |
| 2435 | } |
| 2436 | } |
| 2437 | |
| 2438 | /** |
| 2439 | * Displays the previous posts page link. |
| 2440 | * |
| 2441 | * @since 0.71 |
| 2442 | * |