diff --git a/wp-admin/network.php b/wp-admin/network.php
index 31ba4208c9..cf93115f6d 100644
--- a/wp-admin/network.php
+++ b/wp-admin/network.php
@@ -2,30 +2,28 @@
 /**
  * Network settings administration panel.
  *
- * @since 3.0
+ * A multi-step process allowing the user to enable a network of WordPress sites.
+ *
+ * @since 3.0.0
  *
  * @package WordPress
  * @subpackage Administration
  */
 
 /** WordPress Administration Bootstrap */
-require_once('./admin.php');
+require_once( './admin.php' );
 
 if ( ! is_super_admin() )
-	wp_die(__('You do not have sufficient permissions to manage options for this blog.'));
+	wp_die( __( 'You do not have sufficient permissions to manage options for this blog.' ) );
 
-$title = __('Network Settings');
+$title = __( 'Network Settings' );
 $parent_file = 'tools.php';
 
-add_contextual_help($current_screen, __('<a href="http://codex.wordpress.org/Settings_Network_SubPanel" target="_blank">Network Settings</a>'));
+add_contextual_help( $current_screen, __( '<a href="http://codex.wordpress.org/Settings_Network_SubPanel" target="_blank">Network Settings</a>') );
 
-include('./admin-header.php');
-/*
-This option panel does not save data to the options table.
-It contains a multi-step process allowing the user to enable a network of WordPress sites.
-*/
+include( './admin-header.php' );
 
-$dirs = array( substr( ABSPATH, 0, -1), ABSPATH . "wp-content" );
+$dirs = array( substr( ABSPATH, 0, -1 ), ABSPATH . 'wp-content' );
 ?>
 <div class="wrap">
 <?php screen_icon(); ?>
@@ -33,91 +31,107 @@ $dirs = array( substr( ABSPATH, 0, -1), ABSPATH . "wp-content" );
 
 <form method="post" action="network.php">
 <?php
+/**
+ * Prints summary of server statistics in preparation for setting up a network.
+ *
+ * @since 3.0.0
+ */
 function filestats( $err ) {
 ?>
-	<h2><?php esc_html_e('Server Summary'); ?></h2>
-	<p><?php _e('If you post a message to the WordPress support forum at <a target="_blank" href="http://wordpress.org/support/">http://wordpress.org/support/</a> then copy and paste the following information into your message:'); ?></p>
+	<h2><?php esc_html_e( 'Server Summary' ); ?></h2>
+	<p><?php _e( 'If you post a message to the WordPress support forum at <a target="_blank" href="http://wordpress.org/support/">http://wordpress.org/support/</a> then copy and paste the following information into your message:' ); ?></p>
 	<blockquote style="background: #eee; border: 1px solid #333; padding: 5px;">
-	<br /><strong><?php echo __('ERROR:') . " $err"; ?></strong><br />
+	<br /><strong><?php printf( __( 'ERROR: %s' ), $err ); ?></strong><br />
 <?php
 	clearstatcache();
-	$files = array( "htaccess.dist", ".htaccess" );
+	$files = array( 'htaccess.dist', '.htaccess' );
 
 	$indent = '&nbsp;&nbsp;&nbsp;&nbsp;';
 	foreach ( (array) $files as $val ) {
 		$stats = @stat( $val );
-		if( $stats ) {
+		if ( $stats ) {
 ?>
 			<h2><?php echo esc_html( $val ); ?></h2>
-			<?php echo $indent . sprintf( __('uid/gid: %1$s/%2$s'), $stats[ 'uid' ], $stats[ 'gid' ] ); ?><br />
-			<?php echo $indent . sprintf( __('size: %s'), $stats['size'] ); ?><br/>
-			<?php echo $indent . sprintf( __('perms: %s'), substr( sprintf('%o', fileperms( $val ) ), -4 ) ); ?><br/>
-			<?php echo $indent . sprintf( __('readable: %s'), is_readable( $val ) ? __('yes') : __('no') ); ?><br/>
-			<?php echo $indent . sprintf( __('writeable: %s'), is_writeable( $val ) ? __('yes') : __('no') ); ?><br/>
+			<?php echo $indent . sprintf( __( 'uid/gid: %1$s/%2$s' ), $stats['uid'], $stats['gid'] ); ?><br />
+			<?php echo $indent . sprintf( __( 'size: %s' ), $stats['size'] ); ?><br/>
+			<?php echo $indent . sprintf( __( 'perms: %s' ), substr( sprintf( '%o', fileperms( $val ) ), -4 ) ); ?><br/>
+			<?php echo $indent . sprintf( __( 'readable: %s' ), is_readable( $val ) ? __( 'yes' ) : __( 'no' ) ); ?><br/>
+			<?php echo $indent . sprintf( __( 'writeable: %s' ), is_writeable( $val ) ? __( 'yes' ) : __( 'no' ) ); ?><br/>
 <?php
-		} elseif( ! file_exists( $val ) ) {
+		} elseif ( ! file_exists( $val ) ) {
 ?>
 			<h2><?php echo esc_html( $val ); ?></h2>
-			<?php echo $indent . sprintf( __('FILE NOT FOUND: %s'), $val ); ?><br/>
+			<?php echo $indent . sprintf( __( 'FILE NOT FOUND: %s' ), $val ); ?><br/>
 <?php
 		}
 	}
 	echo "</blockquote>";
 }
 
+/**
+ * Prints .htaccess component of step 2 for network settings.
+ *
+ * @since 3.0.0
+ */
 function step2_htaccess() {
 	global $base;
 
 	// remove ending slash from $base and $url
 	$htaccess = '';
-	if( substr($base, -1 ) == '/') {
-		$base = substr($base, 0, -1);
-	}
+	if ( substr( $base, -1 ) == '/' )
+		$base = substr( $base, 0, -1 );
+
 	$htaccess_sample = ABSPATH . 'wp-admin/includes/htaccess.ms';
-	if ( !file_exists( $htaccess_sample ) )
-		wp_die( sprintf( __('Sorry, I need a %s to work from. Please re-upload this file to your WordPress installation.'), $htaccess_sample ) );
+	if ( ! file_exists( $htaccess_sample ) )
+		wp_die( sprintf( __( 'Sorry, I need a %s to work from. Please re-upload this file to your WordPress installation.' ), $htaccess_sample ) );
 
 	$htaccess_file = file( $htaccess_sample );
 	$fp = @fopen( $htaccess_sample, "r" );
-	if( $fp ) {
-		while( !feof( $fp ) ) {
+	if ( $fp ) {
+		while ( ! feof( $fp ) ) {
 			$htaccess .= fgets( $fp, 4096 );
 		}
 		fclose( $fp );
 		$htaccess_file = str_replace( "BASE", $base, $htaccess );
 	} else {
-		wp_die( sprintf( __('Sorry, I need to be able to read %s. Please check the permissions on this file.'), $htaccess_sample ) );
+		wp_die( sprintf( __( 'Sorry, I need to be able to read %s. Please check the permissions on this file.' ), $htaccess_sample ) );
 	}
 
 	//@todo: check for super-cache in use
 ?>
-			<li><p><?php _e('Replace the contents of your <code>.htaccess</code> with the following:'); ?></p>
+			<li><p><?php _e( 'Replace the contents of your <code>.htaccess</code> with the following:' ); ?></p>
 				<textarea name="htaccess" cols="120" rows="20">
-<?php echo $htaccess_file; ?>
+<?php echo wp_htmledit_pre( $htaccess_file ); ?>
 				</textarea>
 			</li>
 <?php
 }
 
+/**
+ * Prints part of step 1 for network settings and checks for mod_rewrite.
+ *
+ * @since 3.0.0
+ * @return bool Whether mod_rewrite is enabled.
+ */
 function step1() {
 	$rewrite_enabled = false;
 	?>
-	<h2><?php esc_html_e('Installing Network of WordPress Sites'); ?></h2>
-	<p><?php _e('I will help you enable the features for creating a network of sites by asking you a few questions so that you can create configuration files and make a directory to store all your uploaded files.'); ?></p>
+	<h2><?php esc_html_e( 'Installing Network of WordPress Sites' ); ?></h2>
+	<p><?php _e( 'I will help you enable the features for creating a network of sites by asking you a few questions so that you can create configuration files and make a directory to store all your uploaded files.' ); ?></p>
 
-	<h2><?php esc_html_e('What do I need?'); ?></h2>
+	<h2><?php esc_html_e( 'What do I need?' ); ?></h2>
 	<ul>
 		<li><?php _e( 'Access to your server to change directory permissions. This can be done through ssh or ftp for example.' ); ?></li>
 		<li><?php _e( 'A valid email where your password and administrative emails will be sent.' ); ?></li>
-		<li><?php _e( "Wildcard dns records if you're going to use the virtual host (sub-domain) functionality. Check the <a href='http://trac.mu.wordpress.org/browser/trunk/README.txt'>README</a> for further details."); ?></li>
+		<li><?php _e( "Wildcard dns records if you're going to use the virtual host (sub-domain) functionality. Check the <a href='http://trac.mu.wordpress.org/browser/trunk/README.txt'>README</a> for further details." ); ?></li>
 	</ul>
 	<?php
-	$mod_rewrite_msg = "\n<p>" . __( "If the <code>mod_rewrite</code> module is disabled ask your administrator to enable that module, or look at the <a href='http://httpd.apache.org/docs/mod/mod_rewrite.html'>Apache documentation</a> or <a href='http://www.google.com/search?q=apache+mod_rewrite'>elsewhere</a> for help setting it up." ) . '</p>';
+	$mod_rewrite_msg = "\n<p>" . __( 'If the <code>mod_rewrite</code> module is disabled ask your administrator to enable that module, or look at the <a href="http://httpd.apache.org/docs/mod/mod_rewrite.html">Apache documentation</a> or <a href="http://www.google.com/search?q=apache+mod_rewrite">elsewhere</a> for help setting it up.' ) . '</p>';
 
 	if ( function_exists( 'apache_get_modules' ) ) {
 		$modules = apache_get_modules();
 		if ( ! in_array( 'mod_rewrite', $modules ) )
-			echo '<p>' . __('<strong>Warning!</strong> It looks like mod_rewrite is not installed.') . '</p>' . $mod_rewrite_msg;
+			echo '<p>' . __( '<strong>Warning!</strong> It looks like mod_rewrite is not installed.' ) . '</p>' . $mod_rewrite_msg;
 		else
 			$rewrite_enabled = true;
 	} else {
@@ -126,11 +140,17 @@ function step1() {
 	return $rewrite_enabled;
 }
 
+/**
+ * Prints most of step 1 for network settings.
+ *
+ * @since 3.0.0
+ * @param bool $rewrite_enabled Whether mod_rewrite is enabled. Default false.
+ */
 function printstep1form( $rewrite_enabled = false ) {
-	$weblog_title = sprintf( __('%s Sites'), ucfirst( get_option( 'blogname' ) ) );
+	$weblog_title = sprintf( __( '%s Sites' ), ucfirst( get_option( 'blogname' ) ) );
 	$email = get_option( 'admin_email' );
 	$hostname = get_clean_basedomain();
-	if( substr( $hostname, 0, 4 ) == 'www.' )
+	if ( substr( $hostname, 0, 4 ) == 'www.' )
 		$nowww = substr( $hostname, 4 );
 
 	wp_nonce_field( 'install-network-1' );
@@ -138,12 +158,12 @@ function printstep1form( $rewrite_enabled = false ) {
 		<input type='hidden' name='action' value='step2' />
 		<h2><?php esc_html_e( 'Site Addresses' ); ?></h2>
 		<p><?php _e( 'Please choose whether you would like sites in your WordPress install to use sub-domains or sub-directories. You cannot change this later.' ); ?></p>
-		<?php if ( !$rewrite_enabled ) { ?>
-		<p><?php _e( '<strong>Note</strong> It looks like <code>mod_rewrite</code> is not installed.'); ?></p>
+		<?php if ( ! $rewrite_enabled ) { ?>
+		<p><?php _e( '<strong>Note</strong> It looks like <code>mod_rewrite</code> is not installed.' ); ?></p>
 		<?php } ?>
 		<p class="blog-address">
-			<label><input type='radio' name='vhost' value='yes'<?php if( $rewrite_enabled ) echo ' checked="checked"'; ?> /> <?php _e( 'Sub-domains (like <code>blog1.example.com</code>)' ); ?></label><br />
-			<label><input type='radio' name='vhost' value='no'<?php if( !$rewrite_enabled ) echo ' checked="checked"'; ?> /> <?php _e( 'Sub-directories (like <code>example.com/blog1</code>) '); ?></label>
+			<label><input type='radio' name='vhost' value='yes'<?php if ( $rewrite_enabled ) echo ' checked="checked"'; ?> /> <?php _e( 'Sub-domains (like <code>blog1.example.com</code>)' ); ?></label><br />
+			<label><input type='radio' name='vhost' value='no'<?php if ( ! $rewrite_enabled ) echo ' checked="checked"'; ?> /> <?php _e( 'Sub-directories (like <code>example.com/blog1</code>)' ); ?></label>
 		</p>
 
 		<h2><?php esc_html_e( 'Server Address' ); ?></h2>
@@ -182,6 +202,11 @@ function printstep1form( $rewrite_enabled = false ) {
 	<?php
 }
 
+/**
+ * Prints step 2 for network settings.
+ *
+ * @since 3.0.0
+ */
 function step2() {
 ?>
 		<h2><?php esc_html_e( 'Enabling WordPress Sites' ); ?></h2>
@@ -194,14 +219,19 @@ function step2() {
 <?php
 }
 
+/**
+ * Prints configuration file component of step 2 for network settings.
+ *
+ * @since 3.0.0
+ */
 function step2_config() {
 	global $base, $wpdb, $vhost;
 
-	$vhost   = stripslashes($_POST['vhost' ]);
+	$vhost   = stripslashes( $_POST['vhost' ] );
 	$prefix  = $wpdb->base_prefix;
 
 	$config_sample = ABSPATH . 'wp-admin/includes/wp-config.ms';
-	if ( !file_exists( $config_sample ) )
+	if ( ! file_exists( $config_sample ) )
 		wp_die( sprintf( __( 'Sorry, I need a <code>%s</code> to work from. Please re-upload this file to your WordPress installation.' ), $config_sample ) );
 
 	$wp_config_file = file( $config_sample );
@@ -209,35 +239,35 @@ function step2_config() {
 			<li><p><?php _e( 'Replace the contents of your <code>wp-config.php</code> with the following:' ); ?></p>
 				<textarea name="wp-config" cols="120" rows="20">
 <?php
-	foreach ($wp_config_file as $line) {
-		switch ( trim( substr($line,0,16) ) ) {
+	foreach ( $wp_config_file as $line ) {
+		switch ( trim( substr( $line, 0, 16 ) ) ) {
 			case "define('DB_NAME'":
-				$output = str_replace("wordpress", DB_NAME, $line);
+				$output = str_replace( "wordpress", DB_NAME, $line );
 				break;
 			case "define('DB_USER'":
-				$output = str_replace("username", DB_USER, $line);
+				$output = str_replace( "username", DB_USER, $line );
 				break;
 			case "define('DB_PASSW":
-				$output = str_replace("password", DB_PASSWORD, $line);
+				$output = str_replace( "password", DB_PASSWORD, $line );
 				break;
 			case "define('DB_HOST'":
-				$output = str_replace("localhost", DB_HOST, $line);
+				$output = str_replace( "localhost", DB_HOST, $line );
 				break;
 			case "define('VHOST',":
-				$output = str_replace("VHOSTSETTING", $vhost, $line);
+				$output = str_replace( "VHOSTSETTING", $vhost, $line );
 				break;
 			case '$table_prefix  =':
-				$output = str_replace('wp_', $prefix, $line);
+				$output = str_replace( 'wp_', $prefix, $line );
 				break;
 			case '$base = \'BASE\';':
-				$output = str_replace('BASE', $base, $line);
+				$output = str_replace( 'BASE', $base, $line );
 				break;
 			case "define('DOMAIN_C":
 				$domain = get_clean_basedomain();
-				$output = str_replace("current_site_domain", $domain, $line);
+				$output = str_replace( "current_site_domain", $domain, $line );
 				break;
 			case "define('PATH_CUR":
-				$output = str_replace("current_site_path", $base, $line);
+				$output = str_replace( "current_site_path", $base, $line );
 				break;
 			case "define('AUTH_KEY":
 			case "define('AUTH_SAL":
@@ -249,7 +279,7 @@ function step2_config() {
 					$hash = constant( $constant );
 				else
 					$hash = md5( mt_rand() ) . md5( mt_rand() );
-				$output = str_replace('put your unique phrase here', $hash, $line);
+				$output = str_replace( 'put your unique phrase here', $hash, $line );
 				break;
 			default:
 				$output = $line;
@@ -263,39 +293,45 @@ function step2_config() {
 <?php
 }
 
+/**
+ * Gets base domain of network.
+ *
+ * @since 3.0.0
+ */
 function get_clean_basedomain() {
 	global $wpdb;
-	$domain = preg_replace( '|https?://|', '', get_option( 'siteurl') );
-	if( strpos( $domain, '/' ) )
+	$domain = preg_replace( '|https?://|', '', get_option( 'siteurl' ) );
+	if ( strpos( $domain, '/' ) )
 		$domain = substr( $domain, 0, strpos( $domain, '/' ) );
 	return $domain;
 }
 
-$action = isset($_POST[ 'action' ]) ? $_POST[ 'action' ] : null;
-switch($action) {
-	case "step2":
+$action = isset( $_POST[ 'action' ] ) ? $_POST[ 'action' ] : null;
+
+switch( $action ) {
+	case 'step2':
 		check_admin_referer( 'install-network-1' );
 
 		// Install!
-		$base = stripslashes( dirname( dirname($_SERVER["SCRIPT_NAME"]) ) );
-		if( $base != "/")
-			$base .= "/";
+		$base = stripslashes( dirname( dirname( $_SERVER['SCRIPT_NAME'] ) ) );
+		if ( $base != '/' )
+			$base .= '/';
 
 		require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
 		// create network tables
 		$domain = get_clean_basedomain();
 		install_network();
-		populate_network( 1, $domain, sanitize_email( $_POST[ 'email' ] ), $_POST[ 'weblog_title' ], $base, $_POST[ 'vhost' ] );
+		populate_network( 1, $domain, sanitize_email( $_POST['email'] ), $_POST['weblog_title'], $base, $_POST['vhost'] );
 		// create wp-config.php / htaccess
 		step2();
 	break;
 	default:
 		//@todo: give an informative screen instead
 		if ( is_multisite() ) {
-			_e('Network already enabled');
+			_e( 'Network already enabled.' );
 		} else {
 			$rewrite_enabled = step1();
-			printstep1form($rewrite_enabled);
+			printstep1form( $rewrite_enabled );
 		}
 	break;
 }
@@ -303,4 +339,4 @@ switch($action) {
 </form>
 </div>
 
-<?php include('./admin-footer.php'); ?>
+<?php include( './admin-footer.php' ); ?>