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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 |
|---|---|
| 2322 | * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string. |
| 2323 | * |
| 2324 | * @param string[] $types Types of connections. |
| 2325 | * @param array $credentials Credentials to connect with. |
| 2326 | * @param string $type Chosen filesystem method. |
| 2327 | * @param bool|WP_Error $error Whether the current request has failed to connect, |
| 2328 | * or an error object. |
| 2329 | * @param string $context Full path to the directory that is tested for being writable. |
| 2330 | */ |
| 2331 | $types = apply_filters( 'fs_ftp_connection_types', $types, $credentials, $type, $error, $context ); |
| 2332 | ?> |
| 2333 | <form action="<?php echo esc_url( $form_post ); ?>" method="post"> |
| 2334 | <div id="request-filesystem-credentials-form" class="request-filesystem-credentials-form"> |
| 2335 | <?php |
| 2336 | // Print a H1 heading in the FTP credentials modal dialog, default is a H2. |
| 2337 | $heading_tag = 'h2'; |
| 2338 | if ( 'plugins.php' === $pagenow || 'plugin-install.php' === $pagenow ) { |
| 2339 | $heading_tag = 'h1'; |
| 2340 | } |