Database: In `require_wp_db()`, check if database constants are defined before using them.
Otherwise, `wp-admin/setup-config.php` triggers an undefined constant warning in PHP 7.2. Props mariusvw, jryancard for initial patch. Fixes #35560. git-svn-id: https://develop.svn.wordpress.org/trunk@42701 602fd350-edb4-49c9-b593-d223f7449a82
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@ -418,7 +418,12 @@ function require_wp_db() {
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return;
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}
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$wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
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$dbuser = defined( 'DB_USER' ) ? DB_USER : '';
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$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';
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$dbname = defined( 'DB_NAME' ) ? DB_NAME : '';
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$dbhost = defined( 'DB_HOST' ) ? DB_HOST : '';
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$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
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}
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/**
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