Merge "Improve code suffering from PHP 5.3's lack of support for foo()[]"

diff --combined includes/EditPage.php
index c6636e4,3206486..1455068
--- 1/includes/EditPage.php
--- 2/includes/EditPage.php
+++ b/includes/EditPage.php
@@@ -2320,8 -2320,7 +2320,7 @@@ class EditPage 
                # Show a warning message when someone creates/edits a user (talk) page but the user does not exist
                # Show log extract when the user is currently blocked
                if ( $namespace == NS_USER || $namespace == NS_USER_TALK ) {
-                       $parts = explode( '/', $this->mTitle->getText(), 2 );
-                       $username = $parts[0];
+                       $username = explode( '/', $this->mTitle->getText(), 2 )[0];
                        $user = User::newFromName( $username, false /* allow IP users*/ );
                        $ip = User::isIP( $username );
                        $block = Block::newFromTarget( $user, $user );
@@@ -2540,7 -2539,7 +2539,7 @@@
                        Xml::openElement( 'div', [ 'id' => 'antispam-container', 'style' => 'display: none;' ] )
                        . Html::rawElement(
                                'label',
 -                              [ 'for' => 'wpAntiSpam' ],
 +                              [ 'for' => 'wpAntispam' ],
                                wfMessage( 'simpleantispam-label' )->parse()
                        )
                        . Xml::element(