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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 |
|---|---|
| 1607 | * |
| 1608 | * If modifying the password field, please note that the core database schema |
| 1609 | * limits the password field to 20 characters regardless of the value of the |
| 1610 | * size attribute in the form input. |
| 1611 | * |
| 1612 | * @since 2.7.0 |
| 1613 | * |
| 1614 | * @param string $output The password form HTML output. |
| 1615 | */ |
| 1616 | return apply_filters( 'the_password_form', $output ); |
| 1617 | } |
| 1618 | |
| 1619 | /** |
| 1620 | * Whether currently in a page template. |
| 1621 | * |
| 1622 | * This template tag allows you to determine if you are in a page template. |
| 1623 | * You can optionally provide a template name or array of template names |
| 1624 | * and then the check will be specific to that template. |
| 1625 | * |