MySQL: Do not show 'empty' enum value in strict mode

adminer/drivers/mssql.inc.php

@@ -630,6 +630,13 @@ WHERE sys1.xtype = 'TR' AND sys2.name = " . q($table)
 		return array();
 	}
 
+	/**
+	 * @return bool
+	 */
+	function is_strict_mode() {
+		return false;
+	}
+
 	function show_status() {
 		return array();
 	}

adminer/drivers/mysql.inc.php

@@ -50,7 +50,7 @@ if (!defined("DRIVER")) {
 				$row = $result->fetch_array();
 				return $row[$field];
 			}
-			
+
 			function quote($string) {
 				return "'" . $this->escape_string($string) . "'";
 			}
@@ -305,7 +305,7 @@ if (!defined("DRIVER")) {
 			}
 			return queries($prefix . implode(",\n", $values) . $suffix);
 		}
-		
+
 		function slowQuery($query, $timeout) {
 			if (min_version('5.7.8', '10.1.2')) {
 				if (preg_match('~MariaDB~', $this->_conn->server_info)) {
@@ -322,7 +322,7 @@ if (!defined("DRIVER")) {
 				: $idf
 			);
 		}
-		
+
 		function warnings() {
 			$result = $this->_conn->query("SHOW WARNINGS");
 			if ($result && $result->num_rows) {
@@ -1056,6 +1056,19 @@ if (!defined("DRIVER")) {
 		return get_key_vals("SHOW VARIABLES");
 	}
 
+	/**
+	 * @return bool
+	 */
+	function is_strict_mode() {
+		static $strictMode = null;
+
+		if ($strictMode === null) {
+			$strictMode = (bool)preg_match('~STRICT_(TRANS|ALL)_TABLES~', get_key_vals("SHOW VARIABLES LIKE 'sql_mode'")["sql_mode"]);
+		}
+
+		return $strictMode;
+	}
+
 	/** Get process list
 	* @return array ($row)
 	*/

adminer/drivers/oracle.inc.php

@@ -486,6 +486,13 @@ AND c_src.TABLE_NAME = " . q($table);
 		return get_key_vals('SELECT name, display_value FROM v$parameter');
 	}
 
+	/**
+	 * @return bool
+	 */
+	function is_strict_mode() {
+		return false;
+	}
+
 	function process_list() {
 		return get_rows('SELECT sess.process AS "process", sess.username AS "user", sess.schemaname AS "schema", sess.status AS "status", sess.wait_class AS "wait_class", sess.seconds_in_wait AS "seconds_in_wait", sql.sql_text AS "sql_text", sess.machine AS "machine", sess.port AS "port"
 FROM v$session sess LEFT OUTER JOIN v$sql sql

adminer/drivers/pgsql.inc.php

@@ -860,6 +860,13 @@ AND typelem = 0"
 		return get_key_vals("SHOW ALL");
 	}
 
+	/**
+	 * @return bool
+	 */
+	function is_strict_mode() {
+		return false;
+	}
+
 	function process_list() {
 		return get_rows("SELECT * FROM pg_stat_activity ORDER BY " . (min_version(9.2) ? "pid" : "procpid"));
 	}

adminer/drivers/sqlite.inc.php

@@ -764,6 +764,13 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
 		return $return;
 	}
 
+	/**
+	 * @return bool
+	 */
+	function is_strict_mode() {
+		return false;
+	}
+
 	function show_status() {
 		$return = array();
 		foreach (get_vals("PRAGMA compile_options") as $option) {