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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 |
|---|---|
| 77 | |
| 78 | add_action( 'wp_head', 'wpmu_signup_stylesheet' ); |
| 79 | get_header( 'wp-signup' ); |
| 80 | |
| 81 | /** |
| 82 | * Fires before the site sign-up form. |
| 83 | * |
| 84 | * @since 3.0.0 |
| 85 | */ |
| 86 | do_action( 'before_signup_form' ); |
| 87 | ?> |
| 88 | <div id="signup-content" class="widecolumn"> |
| 89 | <div class="mu_register wp-signup-container"> |
| 90 | <?php |
| 91 | /** |
| 92 | * Generates and displays the Signup and Create Site forms |
| 93 | * |
| 94 | * @since MU (3.0.0) |
| 95 | * |