3 * Retrieves and creates the wp-config.php file.
5 * The permissions for the base directory must allow for writing files in order
6 * for the wp-config.php to be created using this page.
8 * @internal This file must be parsable by PHP4.
11 * @subpackage Administration
17 define('WP_INSTALLING', true);
20 * We are blissfully unaware of anything.
22 define('WP_SETUP_CONFIG', true);
25 * Disable error reporting
27 * Set this to error_reporting( -1 ) for debugging
31 if ( ! defined( 'ABSPATH' ) ) {
32 define( 'ABSPATH', dirname( dirname( __FILE__ ) ) . '/' );
35 require( ABSPATH . 'wp-settings.php' );
37 /** Load WordPress Administration Upgrade API */
38 require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
40 /** Load WordPress Translation Install API */
41 require_once( ABSPATH . 'wp-admin/includes/translation-install.php' );
45 // Support wp-config-sample.php one level up, for the develop repo.
46 if ( file_exists( ABSPATH . 'wp-config-sample.php' ) )
47 $config_file = file( ABSPATH . 'wp-config-sample.php' );
48 elseif ( file_exists( dirname( ABSPATH ) . '/wp-config-sample.php' ) )
49 $config_file = file( dirname( ABSPATH ) . '/wp-config-sample.php' );
51 wp_die( __( 'Sorry, I need a wp-config-sample.php file to work from. Please re-upload this file to your WordPress installation.' ) );
53 // Check if wp-config.php has been created
54 if ( file_exists( ABSPATH . 'wp-config.php' ) )
55 wp_die( '<p>' . sprintf(
56 /* translators: %s: install.php */
57 __( "The file 'wp-config.php' already exists. If you need to reset any of the configuration items in this file, please delete it first. You may try <a href='%s'>installing now</a>." ),
62 // Check if wp-config.php exists above the root directory but is not part of another install
63 if ( @file_exists( ABSPATH . '../wp-config.php' ) && ! @file_exists( ABSPATH . '../wp-settings.php' ) ) {
64 wp_die( '<p>' . sprintf(
65 /* translators: %s: install.php */
66 __( "The file 'wp-config.php' already exists one level above your WordPress installation. If you need to reset any of the configuration items in this file, please delete it first. You may try <a href='%s'>installing now</a>." ),
72 $step = isset( $_GET['step'] ) ? (int) $_GET['step'] : -1;
75 * Display setup wp-config.php file header.
80 * @global string $wp_local_package
81 * @global WP_Locale $wp_locale
83 * @param string|array $body_classes
85 function setup_config_display_header( $body_classes = array() ) {
86 $body_classes = (array) $body_classes;
87 $body_classes[] = 'wp-core-ui';
89 $body_classes[] = 'rtl';
92 header( 'Content-Type: text/html; charset=utf-8' );
95 <html xmlns="http://www.w3.org/1999/xhtml"<?php if ( is_rtl() ) echo ' dir="rtl"'; ?>>
97 <meta name="viewport" content="width=device-width" />
98 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
99 <meta name="robots" content="noindex,nofollow" />
100 <title><?php _e( 'WordPress › Setup Configuration File' ); ?></title>
101 <?php wp_admin_css( 'install', true ); ?>
103 <body class="<?php echo implode( ' ', $body_classes ); ?>">
104 <p id="logo"><a href="<?php esc_attr_e( 'https://wordpress.org/' ); ?>" tabindex="-1"><?php _e( 'WordPress' ); ?></a></p>
106 } // end function setup_config_display_header();
109 if ( ! empty( $_REQUEST['language'] ) ) {
110 $language = preg_replace( '/[^a-zA-Z_]/', '', $_REQUEST['language'] );
111 } elseif ( isset( $GLOBALS['wp_local_package'] ) ) {
112 $language = $GLOBALS['wp_local_package'];
117 if ( wp_can_install_language_pack() && empty( $language ) && ( $languages = wp_get_available_translations() ) ) {
118 setup_config_display_header( 'language-chooser' );
119 echo '<h1 class="screen-reader-text">Select a default language</h1>';
120 echo '<form id="setup" method="post" action="?step=0">';
121 wp_install_language_form( $languages );
126 // Deliberately fall through if we can't reach the translations API.
129 if ( ! empty( $language ) ) {
130 $loaded_language = wp_download_language_pack( $language );
131 if ( $loaded_language ) {
132 load_default_textdomain( $loaded_language );
133 $GLOBALS['wp_locale'] = new WP_Locale();
137 setup_config_display_header();
138 $step_1 = 'setup-config.php?step=1';
139 if ( isset( $_REQUEST['noapi'] ) ) {
140 $step_1 .= '&noapi';
142 if ( ! empty( $loaded_language ) ) {
143 $step_1 .= '&language=' . $loaded_language;
146 <h1 class="screen-reader-text"><?php _e( 'Before getting started' ) ?></h1>
147 <p><?php _e( 'Welcome to WordPress. Before getting started, we need some information on the database. You will need to know the following items before proceeding.' ) ?></p>
149 <li><?php _e( 'Database name' ); ?></li>
150 <li><?php _e( 'Database username' ); ?></li>
151 <li><?php _e( 'Database password' ); ?></li>
152 <li><?php _e( 'Database host' ); ?></li>
153 <li><?php _e( 'Table prefix (if you want to run more than one WordPress in a single database)' ); ?></li>
156 /* translators: %s: wp-config.php */
157 printf( __( 'We’re going to use this information to create a %s file.' ),
158 '<code>wp-config.php</code>'
162 /* translators: 1: wp-config-sample.php, 2: wp-config.php */
163 printf( __( 'If for any reason this automatic file creation doesn’t work, don’t worry. All this does is fill in the database information to a configuration file. You may also simply open %1$s in a text editor, fill in your information, and save it as %2$s.' ),
164 '<code>wp-config-sample.php</code>',
165 '<code>wp-config.php</code>'
169 /* translators: %s: Codex URL */
170 printf( __( 'Need more help? <a href="%s">We got it</a>.' ),
171 __( 'https://codex.wordpress.org/Editing_wp-config.php' )
174 <p><?php _e( 'In all likelihood, these items were supplied to you by your Web Host. If you don’t have this information, then you will need to contact them before you can continue. If you’re all ready…' ); ?></p>
176 <p class="step"><a href="<?php echo $step_1; ?>" class="button button-large"><?php _e( 'Let’s go!' ); ?></a></p>
181 load_default_textdomain( $language );
182 $GLOBALS['wp_locale'] = new WP_Locale();
184 setup_config_display_header();
186 <h1 class="screen-reader-text"><?php _e( 'Set up your database connection' ) ?></h1>
187 <form method="post" action="setup-config.php?step=2">
188 <p><?php _e( 'Below you should enter your database connection details. If you’re not sure about these, contact your host.' ); ?></p>
189 <table class="form-table">
191 <th scope="row"><label for="dbname"><?php _e( 'Database Name' ); ?></label></th>
192 <td><input name="dbname" id="dbname" type="text" size="25" value="wordpress" /></td>
193 <td><?php _e( 'The name of the database you want to use with WordPress.' ); ?></td>
196 <th scope="row"><label for="uname"><?php _e( 'Username' ); ?></label></th>
197 <td><input name="uname" id="uname" type="text" size="25" value="<?php echo htmlspecialchars( _x( 'username', 'example username' ), ENT_QUOTES ); ?>" /></td>
198 <td><?php _e( 'Your database username.' ); ?></td>
201 <th scope="row"><label for="pwd"><?php _e( 'Password' ); ?></label></th>
202 <td><input name="pwd" id="pwd" type="text" size="25" value="<?php echo htmlspecialchars( _x( 'password', 'example password' ), ENT_QUOTES ); ?>" autocomplete="off" /></td>
203 <td><?php _e( 'Your database password.' ); ?></td>
206 <th scope="row"><label for="dbhost"><?php _e( 'Database Host' ); ?></label></th>
207 <td><input name="dbhost" id="dbhost" type="text" size="25" value="localhost" /></td>
209 /* translators: %s: localhost */
210 printf( __( 'You should be able to get this info from your web host, if %s doesn’t work.' ),'<code>localhost</code>' );
214 <th scope="row"><label for="prefix"><?php _e( 'Table Prefix' ); ?></label></th>
215 <td><input name="prefix" id="prefix" type="text" value="wp_" size="25" /></td>
216 <td><?php _e( 'If you want to run multiple WordPress installations in a single database, change this.' ); ?></td>
219 <?php if ( isset( $_GET['noapi'] ) ) { ?><input name="noapi" type="hidden" value="1" /><?php } ?>
220 <input type="hidden" name="language" value="<?php echo esc_attr( $language ); ?>" />
221 <p class="step"><input name="submit" type="submit" value="<?php echo htmlspecialchars( __( 'Submit' ), ENT_QUOTES ); ?>" class="button button-large" /></p>
227 load_default_textdomain( $language );
228 $GLOBALS['wp_locale'] = new WP_Locale();
230 $dbname = trim( wp_unslash( $_POST[ 'dbname' ] ) );
231 $uname = trim( wp_unslash( $_POST[ 'uname' ] ) );
232 $pwd = trim( wp_unslash( $_POST[ 'pwd' ] ) );
233 $dbhost = trim( wp_unslash( $_POST[ 'dbhost' ] ) );
234 $prefix = trim( wp_unslash( $_POST[ 'prefix' ] ) );
236 $step_1 = 'setup-config.php?step=1';
237 $install = 'install.php';
238 if ( isset( $_REQUEST['noapi'] ) ) {
239 $step_1 .= '&noapi';
242 if ( ! empty( $language ) ) {
243 $step_1 .= '&language=' . $language;
244 $install .= '?language=' . $language;
246 $install .= '?language=en_US';
249 $tryagain_link = '</p><p class="step"><a href="' . $step_1 . '" onclick="javascript:history.go(-1);return false;" class="button button-large">' . __( 'Try again' ) . '</a>';
251 if ( empty( $prefix ) )
252 wp_die( __( '<strong>ERROR</strong>: "Table Prefix" must not be empty.' . $tryagain_link ) );
254 // Validate $prefix: it can only contain letters, numbers and underscores.
255 if ( preg_match( '|[^a-z0-9_]|i', $prefix ) )
256 wp_die( __( '<strong>ERROR</strong>: "Table Prefix" can only contain numbers, letters, and underscores.' . $tryagain_link ) );
258 // Test the db connection.
262 define('DB_NAME', $dbname);
263 define('DB_USER', $uname);
264 define('DB_PASSWORD', $pwd);
265 define('DB_HOST', $dbhost);
268 // Re-construct $wpdb with these new values.
273 * The wpdb constructor bails when WP_SETUP_CONFIG is set, so we must
274 * fire this manually. We'll fail here if the values are no good.
278 if ( ! empty( $wpdb->error ) )
279 wp_die( $wpdb->error->get_error_message() . $tryagain_link );
281 $wpdb->query( "SELECT $prefix" );
282 if ( ! $wpdb->last_error ) {
283 // MySQL was able to parse the prefix as a value, which we don't want. Bail.
284 wp_die( __( '<strong>ERROR</strong>: "Table Prefix" is invalid.' ) );
287 // Generate keys and salts using secure CSPRNG; fallback to API if enabled; further fallback to original wp_generate_password().
289 $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';
290 $max = strlen($chars) - 1;
291 for ( $i = 0; $i < 8; $i++ ) {
293 for ( $j = 0; $j < 64; $j++ ) {
294 $key .= substr( $chars, random_int( 0, $max ), 1 );
296 $secret_keys[] = $key;
298 } catch ( Exception $ex ) {
299 $no_api = isset( $_POST['noapi'] );
302 $secret_keys = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
305 if ( $no_api || is_wp_error( $secret_keys ) ) {
306 $secret_keys = array();
307 for ( $i = 0; $i < 8; $i++ ) {
308 $secret_keys[] = wp_generate_password( 64, true, true );
311 $secret_keys = explode( "\n", wp_remote_retrieve_body( $secret_keys ) );
312 foreach ( $secret_keys as $k => $v ) {
313 $secret_keys[$k] = substr( $v, 28, 64 );
319 // Not a PHP5-style by-reference foreach, as this file must be parseable by PHP4.
320 foreach ( $config_file as $line_num => $line ) {
321 if ( '$table_prefix =' == substr( $line, 0, 16 ) ) {
322 $config_file[ $line_num ] = '$table_prefix = \'' . addcslashes( $prefix, "\\'" ) . "';\r\n";
326 if ( ! preg_match( '/^define\(\'([A-Z_]+)\',([ ]+)/', $line, $match ) )
329 $constant = $match[1];
330 $padding = $match[2];
332 switch ( $constant ) {
337 $config_file[ $line_num ] = "define('" . $constant . "'," . $padding . "'" . addcslashes( constant( $constant ), "\\'" ) . "');\r\n";
340 if ( 'utf8mb4' === $wpdb->charset || ( ! $wpdb->charset && $wpdb->has_cap( 'utf8mb4' ) ) ) {
341 $config_file[ $line_num ] = "define('" . $constant . "'," . $padding . "'utf8mb4');\r\n";
345 case 'SECURE_AUTH_KEY' :
346 case 'LOGGED_IN_KEY' :
349 case 'SECURE_AUTH_SALT' :
350 case 'LOGGED_IN_SALT' :
352 $config_file[ $line_num ] = "define('" . $constant . "'," . $padding . "'" . $secret_keys[$key++] . "');\r\n";
358 if ( ! is_writable(ABSPATH) ) :
359 setup_config_display_header();
362 /* translators: %s: wp-config.php */
363 printf( __( 'Sorry, but I can’t write the %s file.' ), '<code>wp-config.php</code>' );
366 /* translators: %s: wp-config.php */
367 printf( __( 'You can create the %s manually and paste the following text into it.' ), '<code>wp-config.php</code>' );
369 <textarea id="wp-config" cols="98" rows="15" class="code" readonly="readonly"><?php
370 foreach ( $config_file as $line ) {
371 echo htmlentities($line, ENT_COMPAT, 'UTF-8');
374 <p><?php _e( 'After you’ve done that, click “Run the install.”' ); ?></p>
375 <p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the install' ); ?></a></p>
378 if ( ! /iPad|iPod|iPhone/.test( navigator.userAgent ) ) {
379 var el = document.getElementById('wp-config');
388 * If this file doesn't exist, then we are using the wp-config-sample.php
389 * file one level up, which is for the develop repo.
391 if ( file_exists( ABSPATH . 'wp-config-sample.php' ) )
392 $path_to_wp_config = ABSPATH . 'wp-config.php';
394 $path_to_wp_config = dirname( ABSPATH ) . '/wp-config.php';
396 $handle = fopen( $path_to_wp_config, 'w' );
397 foreach ( $config_file as $line ) {
398 fwrite( $handle, $line );
401 chmod( $path_to_wp_config, 0666 );
402 setup_config_display_header();
404 <h1 class="screen-reader-text"><?php _e( 'Successful database connection' ) ?></h1>
405 <p><?php _e( 'All right, sparky! You’ve made it through this part of the installation. WordPress can now communicate with your database. If you are ready, time now to…' ); ?></p>
407 <p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the install' ); ?></a></p>
413 <?php wp_print_scripts( 'language-chooser' ); ?>