diff --git a/src/Dibi/Bridges/Tracy/Panel.php b/src/Dibi/Bridges/Tracy/Panel.php
index 268e18e8..76bda79c 100644
--- a/src/Dibi/Bridges/Tracy/Panel.php
+++ b/src/Dibi/Bridges/Tracy/Panel.php
@@ -165,7 +165,7 @@ class Panel implements Tracy\IBarPanel
 	private function getConnectionName(Dibi\Connection $connection): string
 	{
 		$driver = $connection->getConfig('driver');
-		return (is_object($driver) ? $driver::class : $driver)
+		return get_debug_type($driver)
 			. ($connection->getConfig('name') ? '/' . $connection->getConfig('name') : '')
 			. ($connection->getConfig('host') ? "\u{202f}@\u{202f}" . $connection->getConfig('host') : '');
 	}
diff --git a/src/Dibi/Connection.php b/src/Dibi/Connection.php
index 2042ae35..ee230806 100644
--- a/src/Dibi/Connection.php
+++ b/src/Dibi/Connection.php
@@ -508,9 +508,9 @@ class Connection implements IConnection
 	 */
 	public function substitute(string $value): string
 	{
-		return strpos($value, ':') === false
-			? $value
-			: preg_replace_callback('#:([^:\s]*):#', fn(array $m) => $this->substitutes->{$m[1]}, $value);
+		return str_contains($value, ':')
+			? preg_replace_callback('#:([^:\s]*):#', fn(array $m) => $this->substitutes->{$m[1]}, $value)
+			: $value;
 	}
 
 
diff --git a/src/Dibi/Drivers/PostgreReflector.php b/src/Dibi/Drivers/PostgreReflector.php
index 6d08a17d..c97ff437 100644
--- a/src/Dibi/Drivers/PostgreReflector.php
+++ b/src/Dibi/Drivers/PostgreReflector.php
@@ -123,7 +123,7 @@ class PostgreReflector implements Dibi\Reflector
 				'size' => $size > 0 ? $size : null,
 				'nullable' => $row['is_nullable'] === 'YES' || $row['is_nullable'] === 't' || $row['is_nullable'] === true,
 				'default' => $row['column_default'],
-				'autoincrement' => (int) $row['ordinal_position'] === $primary && substr($row['column_default'] ?? '', 0, 7) === 'nextval',
+				'autoincrement' => (int) $row['ordinal_position'] === $primary && str_starts_with($row['column_default'] ?? '', 'nextval'),
 				'vendor' => $row,
 			];
 		}
diff --git a/src/Dibi/Event.php b/src/Dibi/Event.php
index 9777b82b..92f4a162 100644
--- a/src/Dibi/Event.php
+++ b/src/Dibi/Event.php
@@ -58,7 +58,7 @@ class Event
 			if (
 				isset($row['file'])
 				&& preg_match('~\.(php.?|phtml)$~', $row['file'])
-				&& substr($row['file'], 0, strlen($dibiDir)) !== $dibiDir
+				&& !str_starts_with($row['file'], $dibiDir)
 			) {
 				$this->source = [$row['file'], (int) $row['line']];
 				break;
diff --git a/src/Dibi/Helpers.php b/src/Dibi/Helpers.php
index cf67a861..acfaff13 100644
--- a/src/Dibi/Helpers.php
+++ b/src/Dibi/Helpers.php
@@ -22,7 +22,7 @@ class Helpers
 	{
 		ob_start();
 		if ($sql instanceof Result && PHP_SAPI === 'cli') {
-			$hasColors = (substr((string) getenv('TERM'), 0, 5) === 'xterm');
+			$hasColors = (str_starts_with((string) getenv('TERM'), 'xterm'));
 			$maxLen = 0;
 			foreach ($sql as $i => $row) {
 				if ($i === 0) {
@@ -87,7 +87,7 @@ class Helpers
 			// syntax highlight
 			$highlighter = "#(/\\*.+?\\*/)|(\\*\\*.+?\\*\\*)|(?<=[\\s,(])($keywords1)(?=[\\s,)])|(?<=[\\s,(=])($keywords2)(?=[\\s,)=])#is";
 			if (PHP_SAPI === 'cli') {
-				if (substr((string) getenv('TERM'), 0, 5) === 'xterm') {
+				if (str_starts_with((string) getenv('TERM'), 'xterm')) {
 					$sql = preg_replace_callback($highlighter, function (array $m) {
 						if (!empty($m[1])) { // comment
 							return "\033[1;30m" . $m[1] . "\033[0m";
@@ -255,7 +255,7 @@ class Helpers
 			if (strtoupper(substr($s, 0, 10)) === 'DELIMITER ') {
 				$delimiter = trim(substr($s, 10));
 
-			} elseif (substr($ts = rtrim($s), -strlen($delimiter)) === $delimiter) {
+			} elseif (str_ends_with($ts = rtrim($s), $delimiter)) {
 				$sql .= substr($ts, 0, -strlen($delimiter));
 				$driver->query($sql);
 				$sql = '';
diff --git a/src/Dibi/Loggers/FileLogger.php b/src/Dibi/Loggers/FileLogger.php
index 3a71fc88..24239e65 100644
--- a/src/Dibi/Loggers/FileLogger.php
+++ b/src/Dibi/Loggers/FileLogger.php
@@ -70,7 +70,7 @@ class FileLogger
 	{
 		$driver = $event->connection->getConfig('driver');
 		$message .=
-			"\n-- driver: " . (is_object($driver) ? $driver::class : $driver) . '/' . $event->connection->getConfig('name')
+			"\n-- driver: " . get_debug_type($driver) . '/' . $event->connection->getConfig('name')
 			. "\n-- " . date('Y-m-d H:i:s')
 			. "\n\n";
 		file_put_contents($this->file, $message, FILE_APPEND | LOCK_EX);
diff --git a/src/Dibi/Result.php b/src/Dibi/Result.php
index d089b19b..328f05fc 100644
--- a/src/Dibi/Result.php
+++ b/src/Dibi/Result.php
@@ -230,7 +230,7 @@ class Result implements IDataSource
 	 */
 	final public function fetchAssoc(string $assoc): array
 	{
-		if (strpos($assoc, ',') !== false) {
+		if (str_contains($assoc, ',')) {
 			return $this->oldFetchAssoc($assoc);
 		}
 
@@ -487,7 +487,7 @@ class Result implements IDataSource
 				$row[$key] = ((bool) $value) && $value !== 'f' && $value !== 'F';
 
 			} elseif ($type === Type::DATETIME || $type === Type::DATE || $type === Type::TIME) {
-				if ($value && substr((string) $value, 0, 7) !== '0000-00') { // '', null, false, '0000-00-00', ...
+				if ($value && !str_starts_with((string) $value, '0000-00')) { // '', null, false, '0000-00-00', ...
 					$value = new DateTime($value);
 					$row[$key] = $format ? $value->format($format) : $value;
 				} else {
diff --git a/src/Dibi/Row.php b/src/Dibi/Row.php
index ad4a17d6..8a99d4e8 100644
--- a/src/Dibi/Row.php
+++ b/src/Dibi/Row.php
@@ -37,7 +37,7 @@ class Row implements \ArrayAccess, \IteratorAggregate, \Countable
 	{
 		$time = $this[$key];
 		if (!$time instanceof DateTime) {
-			if (!$time || substr((string) $time, 0, 7) === '0000-00') { // '', null, false, '0000-00-00', ...
+			if (!$time || str_starts_with((string) $time, '0000-00')) { // '', null, false, '0000-00-00', ...
 				return null;
 			}
 
diff --git a/src/Dibi/Translator.php b/src/Dibi/Translator.php
index 98299d4a..b037edeb 100644
--- a/src/Dibi/Translator.php
+++ b/src/Dibi/Translator.php
@@ -187,7 +187,7 @@ final class Translator
 								$v = $this->formatValue($v, $pair[1]);
 								if ($pair[1] === 'l' || $pair[1] === 'in') {
 									$op = 'IN ';
-								} elseif (strpos($pair[1], 'like') !== false) {
+								} elseif (str_contains($pair[1], 'like')) {
 									$op = 'LIKE ';
 								} elseif ($v === 'NULL') {
 									$op = 'IS ';
@@ -257,7 +257,7 @@ final class Translator
 								$proto = array_keys($v);
 							}
 						} else {
-							return $this->errors[] = '**Unexpected type ' . (is_object($v) ? $v::class : gettype($v)) . '**';
+							return $this->errors[] = '**Unexpected type ' . get_debug_type($v) . '**';
 						}
 
 						$pair = explode('%', $k, 2); // split into identifier & modifier
@@ -326,7 +326,7 @@ final class Translator
 				) {
 					// continue
 				} else {
-					$type = is_object($value) ? $value::class : gettype($value);
+					$type = get_debug_type($value);
 					return $this->errors[] = "**Invalid combination of type $type and modifier %$modifier**";
 				}
 			}
@@ -492,7 +492,7 @@ final class Translator
 			return $this->connection->translate(...$value->getValues());
 
 		} else {
-			$type = is_object($value) ? $value::class : gettype($value);
+			$type = get_debug_type($value);
 			return $this->errors[] = "**Unexpected $type**";
 		}
 	}
diff --git a/src/Dibi/exceptions.php b/src/Dibi/exceptions.php
index 8711cb65..612ca7a1 100644
--- a/src/Dibi/exceptions.php
+++ b/src/Dibi/exceptions.php
@@ -56,17 +56,9 @@ class DriverException extends Exception
  */
 class PcreException extends Exception
 {
-	public function __construct(string $message = '%msg.')
+	public function __construct()
 	{
-		static $messages = [
-			PREG_INTERNAL_ERROR => 'Internal error',
-			PREG_BACKTRACK_LIMIT_ERROR => 'Backtrack limit was exhausted',
-			PREG_RECURSION_LIMIT_ERROR => 'Recursion limit was exhausted',
-			PREG_BAD_UTF8_ERROR => 'Malformed UTF-8 data',
-			5 => 'Offset didn\'t correspond to the begin of a valid UTF-8 code point', // PREG_BAD_UTF8_OFFSET_ERROR
-		];
-		$code = preg_last_error();
-		parent::__construct(str_replace('%msg', $messages[$code] ?? 'Unknown error', $message), $code);
+		parent::__construct(preg_last_error_msg(), preg_last_error());
 	}
 }