diff --git wp-admin/network/edit.php wp-admin/network/edit.php
index 1e06e49..1025eaa 100644
--- wp-admin/network/edit.php
+++ wp-admin/network/edit.php
@@ -110,7 +110,7 @@ switch ( $_GET['action'] ) {
 		if ( is_email( $_POST['admin_email'] ) )
 			update_site_option( 'admin_email', $_POST['admin_email'] );
 
-		$illegal_names = split( ' ', $_POST['illegal_names'] );
+		$illegal_names = explode( ' ', $_POST['illegal_names'] );
 		foreach ( (array) $illegal_names as $name ) {
 			$name = trim( $name );
 			if ( $name != '' )
@@ -120,7 +120,7 @@ switch ( $_GET['action'] ) {
 
 		if ( $_POST['limited_email_domains'] != '' ) {
 			$limited_email_domains = str_replace( ' ', "\n", $_POST['limited_email_domains'] );
-			$limited_email_domains = split( "\n", stripslashes( $limited_email_domains ) );
+			$limited_email_domains = explode( "\n", stripslashes( $limited_email_domains ) );
 			$limited_email = array();
 			foreach ( (array) $limited_email_domains as $domain ) {
 					$domain = trim( $domain );
@@ -133,7 +133,7 @@ switch ( $_GET['action'] ) {
 		}
 
 		if ( $_POST['banned_email_domains'] != '' ) {
-			$banned_email_domains = split( "\n", stripslashes( $_POST['banned_email_domains'] ) );
+			$banned_email_domains = explode( "\n", stripslashes( $_POST['banned_email_domains'] ) );
 			$banned = array();
 			foreach ( (array) $banned_email_domains as $domain ) {
 				$domain = trim( $domain );
diff --git wp-admin/press-this.php wp-admin/press-this.php
index aa4eb47..3e5e1de 100644
--- wp-admin/press-this.php
+++ wp-admin/press-this.php
@@ -381,12 +381,12 @@ var photostorage = false;
 					<?php
 					$content = '';
 					if ( preg_match("/youtube\.com\/watch/i", $url) ) {
-						list($domain, $video_id) = split("v=", $url);
+						list($domain, $video_id) = explode("v=", $url);
 						$video_id = esc_attr($video_id);
 						$content = '<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/' . $video_id . '"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/' . $video_id . '" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>';
 
 					} elseif ( preg_match("/vimeo\.com\/[0-9]+/i", $url) ) {
-						list($domain, $video_id) = split(".com/", $url);
+						list($domain, $video_id) = explode(".com/", $url);
 						$video_id = esc_attr($video_id);
 						$content = '<object width="400" height="225"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://www.vimeo.com/moogaloop.swf?clip_id=' . $video_id . '&amp;server=www.vimeo.com&amp;show_title=1&amp;show_byline=1&amp;show_portrait=0&amp;color=&amp;fullscreen=1" />	<embed src="http://www.vimeo.com/moogaloop.swf?clip_id=' . $video_id . '&amp;server=www.vimeo.com&amp;show_title=1&amp;show_byline=1&amp;show_portrait=0&amp;color=&amp;fullscreen=1" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="400" height="225"></embed></object>';
 
diff --git wp-includes/class-wp-xmlrpc-server.php wp-includes/class-wp-xmlrpc-server.php
index 5e9bbd4..40c5b38 100644
--- wp-includes/class-wp-xmlrpc-server.php
+++ wp-includes/class-wp-xmlrpc-server.php
@@ -2735,7 +2735,7 @@ class wp_xmlrpc_server extends IXR_Server {
 			foreach ( (array) get_post_custom($post_ID) as $key => $val) {
 				if ($key == 'enclosure') {
 					foreach ( (array) $val as $enc ) {
-						$encdata = split("\n", $enc);
+						$encdata = explode("\n", $enc);
 						$enclosure['url'] = trim(htmlspecialchars($encdata[0]));
 						$enclosure['length'] = (int) trim($encdata[1]);
 						$enclosure['type'] = trim($encdata[2]);
diff --git wp-includes/feed.php wp-includes/feed.php
index b94e347..ec68221 100644
--- wp-includes/feed.php
+++ wp-includes/feed.php
@@ -423,7 +423,7 @@ function atom_enclosure() {
 	foreach ( (array) get_post_custom() as $key => $val ) {
 		if ($key == 'enclosure') {
 			foreach ( (array) $val as $enc ) {
-				$enclosure = split("\n", $enc);
+				$enclosure = explode("\n", $enc);
 				echo apply_filters('atom_enclosure', '<link href="' . trim(htmlspecialchars($enclosure[0])) . '" rel="enclosure" length="' . trim($enclosure[1]) . '" type="' . trim($enclosure[2]) . '" />' . "\n");
 			}
 		}
diff --git wp-includes/kses.php wp-includes/kses.php
index aea7aa8..afdea53 100644
--- wp-includes/kses.php
+++ wp-includes/kses.php
@@ -1404,7 +1404,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
 		if ( strpos( $css_item, ':' ) === false ) {
 			$found = true;
 		} else {
-			$parts = split( ':', $css_item );
+			$parts = explode( ':', $css_item );
 			if ( in_array( trim( $parts[0] ), $allowed_attr ) )
 				$found = true;
 		}
diff --git wp-includes/pluggable.php wp-includes/pluggable.php
index 4082340..a8d8a7b 100644
--- wp-includes/pluggable.php
+++ wp-includes/pluggable.php
@@ -1740,8 +1740,8 @@ function wp_text_diff( $left_string, $right_string, $args = null ) {
 	$left_string  = normalize_whitespace($left_string);
 	$right_string = normalize_whitespace($right_string);
 
-	$left_lines  = split("\n", $left_string);
-	$right_lines = split("\n", $right_string);
+	$left_lines  = explode("\n", $left_string);
+	$right_lines = explode("\n", $right_string);
 
 	$text_diff = new Text_Diff($left_lines, $right_lines);
 	$renderer  = new WP_Text_Diff_Renderer_Table();
diff --git wp-includes/post.php wp-includes/post.php
index 3c3759e..e5dd986 100644
--- wp-includes/post.php
+++ wp-includes/post.php
@@ -2996,7 +2996,7 @@ function get_enclosed($post_id) {
 		if ( 'enclosure' != $key || !is_array( $val ) )
 			continue;
 		foreach( $val as $enc ) {
-			$enclosure = split( "\n", $enc );
+			$enclosure = explode( "\n", $enc );
 			$pung[] = trim( $enclosure[ 0 ] );
 		}
 	}