Fix bug in DB IO prepared statement with INSERT and auto RETURNING add

INSERT will get a RETURNING added automatically if it has a primary key
This was not checked when query was compared for prepared statements.

Also added a prepared statement status checker

4dev/tests/DB/CoreLibsDBIOTest.php

@@ -3692,7 +3692,7 @@ final class CoreLibsDBIOTest extends TestCase
 	 *
 	 * @return array
 	 */
-	public function preparedProviderValue(): array
+	public function providerDbGetPrepareCursorValue(): array
 	{
 		// 1: query (can be empty for do not set)
 		// 2: stm name
@@ -3736,7 +3736,7 @@ final class CoreLibsDBIOTest extends TestCase
 	 * test return prepare cursor errors
 	 *
 	 * @covers ::dbGetPrepareCursorValue
-	 * @dataProvider preparedProviderValue
+	 * @dataProvider providerDbGetPrepareCursorValue
 	 * @testdox prepared query $stm_name with $key expect error id $error_id [$_dataName]
 	 *
 	 * @param string $query
@@ -3769,6 +3769,94 @@ final class CoreLibsDBIOTest extends TestCase
 		);
 	}
 
+	/**
+	 * Undocumented function
+	 *
+	 * @return array
+	 */
+	public function providerDbPreparedCursorStatus(): array
+	{
+		return [
+			'empty statement pararm' => [
+				'query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'stm_name' => 'test_stm_a',
+				'check_stm_name' => '',
+				'check_query' => '',
+				'expected' => false
+			],
+			'different stm_name' => [
+				'query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'stm_name' => 'test_stm_b',
+				'check_stm_name' => 'other_name',
+				'check_query' => '',
+				'expected' => 0
+			],
+			'same stm_name' => [
+				'query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'stm_name' => 'test_stm_c',
+				'check_stm_name' => 'test_stm_c',
+				'check_query' => '',
+				'expected' => 1
+			],
+			'same stm_name and query' => [
+				'query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'stm_name' => 'test_stm_d',
+				'check_stm_name' => 'test_stm_d',
+				'check_query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'expected' => 2
+			],
+			'same stm_name and different query' => [
+				'query' => 'SELECT row_int, uid FROM table_with_primary_key',
+				'stm_name' => 'test_stm_e',
+				'check_stm_name' => 'test_stm_e',
+				'check_query' => 'SELECT row_int, uid, row_int FROM table_with_primary_key',
+				'expected' => 1
+			],
+			'insert query test' => [
+				'query' => 'INSERT INTO table_with_primary_key (row_int, uid) VALUES ($1, $2)',
+				'stm_name' => 'test_stm_f',
+				'check_stm_name' => 'test_stm_f',
+				'check_query' => 'INSERT INTO table_with_primary_key (row_int, uid) VALUES ($1, $2)',
+				'expected' => 2
+			]
+		];
+	}
+
+	/**
+	 * test cursor status for prepared statement
+	 *
+	 * @covers ::dbPreparedCursorStatus
+	 * @dataProvider providerDbPreparedCursorStatus
+	 * @testdox Check prepared $stm_name ($check_stm_name) status is $expected [$_dataName]
+	 *
+	 * @param  string   $query
+	 * @param  string   $stm_name
+	 * @param  string   $check_stm_name
+	 * @param  string   $check_query
+	 * @param  bool|int $expected
+	 * @return void
+	 */
+	public function testDbPreparedCursorStatus(
+		string $query,
+		string $stm_name,
+		string $check_stm_name,
+		string $check_query,
+		bool|int $expected
+	): void {
+		$db = new \CoreLibs\DB\IO(
+			self::$db_config['valid'],
+			self::$log
+		);
+		$db->dbPrepare($stm_name, $query);
+		// $db->dbExecute($stm_name);
+		$this->assertEquals(
+			$expected,
+			$db->dbPreparedCursorStatus($check_stm_name, $check_query),
+			'check prepared stement cursor status'
+		);
+		unset($db);
+	}
+
 	// - schema set/get tests
 	//   dbGetSchema, dbSetSchema
 

4dev/tests/Logging/CoreLibsLoggingLoggingTest.php

@@ -395,7 +395,7 @@ final class CoreLibsLoggingLoggingTest extends TestCase
 		}
 		$per_run_id = $log->getLogUniqueId();
 		$this->assertMatchesRegularExpression(
-			"/^\d{4}-\d{2}-\d{2}_\d{6}_U_[a-z0-9]{8}$/",
+			"/^\d{4}-\d{2}-\d{2}_\d{6}\.U_[a-z0-9]{8}$/",
 			$per_run_id,
 			'assert per log run id 1st'
 		);
@@ -403,7 +403,7 @@ final class CoreLibsLoggingLoggingTest extends TestCase
 			$log->setLogUniqueId(true);
 			$per_run_id_2nd = $log->getLogUniqueId();
 			$this->assertMatchesRegularExpression(
-				"/^\d{4}-\d{2}-\d{2}_\d{6}_U_[a-z0-9]{8}$/",
+				"/^\d{4}-\d{2}-\d{2}_\d{6}\.U_[a-z0-9]{8}$/",
 				$per_run_id_2nd,
 				'assert per log run id 2nd'
 			);
@@ -824,13 +824,13 @@ final class CoreLibsLoggingLoggingTest extends TestCase
 		$this->assertTrue($log_ok, 'assert ::log (debug) OK');
 		$this->assertEquals(
 			$log->getLogFile(),
-			$log->getLogFileId() . '_DEBUG.log'
+			$log->getLogFileId() . '.DEBUG.log'
 		);
 		$log_ok = $log->log(Level::Info, 'INFO', group_id: 'GROUP_ID', prefix: 'PREFIX:');
 		$this->assertTrue($log_ok, 'assert ::log (info) OK');
 		$this->assertEquals(
 			$log->getLogFile(),
-			$log->getLogFileId() . '_INFO.log'
+			$log->getLogFileId() . '.INFO.log'
 		);
 	}
 

www/admin/class_test.db.php

@@ -707,6 +707,17 @@ if (
 } else {
 	print "[PGB] [3] pgb_sel_test_foo prepare OK<br>";
 }
+$stm_status = $db->dbPreparedCursorStatus('');
+print "[PGB] Empty statement name: " . $log->prAr($stm_status) . "<br>";
+$stm_status = $db->dbPreparedCursorStatus('pgb_sel_test_foobar');
+print "[PGB] Prepared name not match status: $stm_status<br>";
+$stm_status = $db->dbPreparedCursorStatus('pgb_sel_test_foo');
+print "[PGB] Prepared name match status: $stm_status<br>";
+$stm_status = $db->dbPreparedCursorStatus('pgb_sel_test_foo', $q_prep);
+print "[PGB] prepared exists and query match status: $stm_status<br>";
+$stm_status = $db->dbPreparedCursorStatus('pgb_sel_test_foo', "SELECT * FROM test_foo");
+print "[PGB] prepared exists and query not match status: $stm_status<br>";
+
 $db_pgb->dbClose();
 
 # db write class test

www/admin/class_test.deprecated.helper.php

@@ -0,0 +1,107 @@
+<?php // phpcs:ignore warning
+
+/**
+ * @phan-file-suppress PhanTypeSuspiciousStringExpression
+ */
+
+declare(strict_types=1);
+
+error_reporting(E_ALL | E_ERROR | E_WARNING | E_PARSE | E_COMPILE_ERROR);
+
+ob_start();
+
+// basic class test file
+define('USE_DATABASE', false);
+// sample config
+require 'config.php';
+// define log file id
+$LOG_FILE_ID = 'classTest-phpv';
+ob_end_flush();
+
+$log = new CoreLibs\Logging\Logging([
+	'log_folder' => BASE . LOG,
+	'log_file_id' => $LOG_FILE_ID,
+	'log_per_date' => true,
+]);
+$_phpv = new CoreLibs\Check\PhpVersion();
+$phpv_class = 'CoreLibs\Check\PhpVersion';
+
+$PAGE_NAME = 'TEST CLASS: PHP VERSION';
+print "<!DOCTYPE html>";
+print "<html><head><title>" . $PAGE_NAME . "</title></head>";
+print "<body>";
+print '<div><a href="class_test.php">Class Test Master</a></div>';
+print '<div><h1>' . $PAGE_NAME . '</h1></div>';
+
+// fputcsv
+print "<h3>\CoreLibs\DeprecatedHelper\Deprecated84::fputcsv()</h3>";
+$test_csv = BASE . TMP . 'DeprecatedHelper.test.csv';
+print "File: $test_csv<br>";
+
+$fp = fopen($test_csv, "w");
+if (!is_resource($fp)) {
+	die("Cannot open file: $test_csv");
+}
+\CoreLibs\DeprecatedHelper\Deprecated84::fputcsv($fp, ["A", "B", "C"]);
+fclose($fp);
+
+$fp = fopen($test_csv, "r");
+if (!is_resource($fp)) {
+	die("Cannot open file: $test_csv");
+}
+while ($entry = \CoreLibs\DeprecatedHelper\Deprecated84::fgetcsv($fp)) {
+	print "fgetcsv: <pre>" . print_r($entry, true) . "</pre>";
+}
+fclose($fp);
+
+$out = \CoreLibs\DeprecatedHelper\Deprecated84::str_getcsv("A,B,C");
+print "str_getcsv: <pre>" . print_r($out, true) . "</pre>";
+
+/**
+ * temporary different CSV function, because fgetcsv seems to be broken on some systems
+ * (does not read out japanese text)
+ *
+ * @param  string $string    full line for csv split
+ * @param  string $encoding  optional, if given, converts string to the internal encoding
+ *                           before we do anything
+ * @param  string $delimiter sepperate character, default ','
+ * @param  string $enclosure string line marker, default '"'
+ * @param  string $flag      INTERN | EXTERN. if INTERN uses the PHP function, else uses explode
+ * @return array<int,string|null> array with split data from input line
+ */
+function mtParseCSV(
+	string $string,
+	string $encoding = '',
+	string $delimiter = ',',
+	string $enclosure = '"',
+	string $flag = 'INTERN'
+): array {
+	$lines = [];
+	if ($encoding) {
+		$string = \CoreLibs\Convert\Encoding::convertEncoding(
+			$string,
+			'UTF-8',
+			$encoding
+		);
+	}
+	if ($flag == 'INTERN') {
+		// split with PHP function
+		$lines = str_getcsv($string, $delimiter, $enclosure);
+	} else {
+		// split up with delimiter
+		$lines = explode(',', $string) ?: [];
+	}
+	// strip " from beginning and end of line
+	for ($i = 0; $i < count($lines); $i++) {
+		// remove line breaks
+		$lines[$i] = preg_replace("/\r\n?/", '', (string)$lines[$i]) ?? '';
+		// lingering " at the beginning and end of the line
+		$lines[$i] = preg_replace("/^\"/", '', (string)$lines[$i]) ?? '';
+		$lines[$i] = preg_replace("/\"$/", '', (string)$lines[$i]) ?? '';
+	}
+	return $lines;
+}
+
+print "</body></html>";
+
+// __END__

www/admin/class_test.login.php

@@ -117,7 +117,7 @@ if (isset($login->loginGetAcl()['unit'])) {
 	if ($login->loginCheckEditAccessCuid($edit_access_cuid)) {
 		print "Set new:" . $edit_access_cuid . "<br>";
 	} else {
-		print "Load default unit id: " . $login->loginGetAcl()['unit_id'] . "<br>";
+		print "Load default unit id: " . $login->loginGetAcl()['unit_cuid'] . "<br>";
 	}
 } else {
 	print "Something went wrong with the login<br>";
@@ -140,4 +140,17 @@ $login->writeLog(
 	write_type:'JSON'
 );
 
+echo "<hr>";
+print "<h3>Legacy Lookups</h3>";
+
+$edit_access_id = 1;
+$edit_access_cuid = $login->loginGetEditAccessCuidFromId($edit_access_id);
+$edit_access_id_rev = null;
+if (is_string($edit_access_cuid)) {
+	$edit_access_id_rev = $login->loginGetEditAccessIdFromCuid($edit_access_cuid);
+}
+print "EA ID: " . $edit_access_id . "<br>";
+print "EA CUID: " . $log->prAr($edit_access_cuid) . "<br>";
+print "REV EA CUID: " . $log->prAr($edit_access_id_rev) . "<br>";
+
 print "</body></html>";

www/admin/class_test.php

@@ -141,6 +141,7 @@ $test_files = [
 	'class_test.error_msg.php' => 'Class Test: ERROR MSG',
 	'class_test.url-requests.curl.php' => 'Class Test: URL REQUESTS: CURL',
 	'subfolder/class_test.config.direct.php' => 'Class Test: CONFIG DIRECT SUB',
+	'class_test.deprecated.helper.php' => 'Class Test: DEPRECATED HELPERS',
 ];
 
 asort($test_files);

www/admin/class_test.phpv.php

@@ -28,8 +28,6 @@ $log = new CoreLibs\Logging\Logging([
 $_phpv = new CoreLibs\Check\PhpVersion();
 $phpv_class = 'CoreLibs\Check\PhpVersion';
 
-// define a list of from to color sets for conversion test
-
 $PAGE_NAME = 'TEST CLASS: PHP VERSION';
 print "<!DOCTYPE html>";
 print "<html><head><title>" . $PAGE_NAME . "</title></head>";

www/lib/CoreLibs/ACL/Login.php

@@ -1478,6 +1478,8 @@ class Login
 		// username (login), group name
 		$this->acl['user_name'] = $_SESSION['LOGIN_USER_NAME'];
 		$this->acl['group_name'] = $_SESSION['LOGIN_GROUP_NAME'];
+		// DEPRECATED
+		$this->acl['euid'] = $_SESSION['LOGIN_EUID'];
 		// edit user cuid
 		$this->acl['eucuid'] = $_SESSION['LOGIN_EUCUID'];
 		$this->acl['eucuuid'] = $_SESSION['LOGIN_EUCUUID'];
@@ -1530,7 +1532,7 @@ class Login
 			$this->acl['page'] = $_SESSION['LOGIN_PAGES_ACL_LEVEL'][$this->page_name];
 		}
 
-		$this->acl['unit_id'] = null;
+		$this->acl['unit_cuid'] = null;
 		$this->acl['unit_name'] = null;
 		$this->acl['unit_uid'] = null;
 		$this->acl['unit'] = [];
@@ -3215,7 +3217,7 @@ HTML;
 	 * @return int|null                 same edit access id if ok
 	 *                                  or the default edit access id
 	 *                                  if given one is not valid
-	 * @deprecated Please switch to using edit access cuid check with ->loginCheckEditAccessValidCuid()
+	 * @#deprecated Please switch to using edit access cuid check with ->loginCheckEditAccessValidCuid()
 	 */
 	public function loginCheckEditAccessId(?int $edit_access_id): ?int
 	{
@@ -3288,10 +3290,24 @@ HTML;
 	 */
 	public function loginGetEditAccessCuidFromId(int $id): string|false
 	{
-		if (!isset($_SESSION['LOGIN_UNIT_ACL_LEVEL'][$id])) {
+		if (!isset($_SESSION['LOGIN_UNIT_LEGACY'][$id])) {
 			return false;
 		}
-		return (string)$_SESSION['LOGIN_UNIT_ACL_LEVEL'][$id]['cuid'];
+		return (string)$_SESSION['LOGIN_UNIT_LEGACY'][$id]['cuid'];
+	}
+
+	/**
+	 * This is a Legacy lookup from the edit access id to cuid for further lookups in the normal list
+	 *
+	 * @param  string    $cuid edit access cuid
+	 * @return int|false       false on not found or edit access id PK
+	 */
+	public function loginGetEditAccessIdFromCuid(string $cuid): int|false
+	{
+		if (!isset($_SESSION['LOGIN_UNIT'][$cuid])) {
+			return false;
+		}
+		return $_SESSION['LOGIN_UNIT'][$cuid]['id'];
 	}
 
 	/**

www/lib/CoreLibs/DB/IO.php

@@ -3141,6 +3141,7 @@ class IO
 				'pk_name' => '',
 				'count' => 0,
 				'query' => '',
+				'query_raw' => $query,
 				'result' =>  null,
 				'returning_id' => false,
 				'placeholder_converted' => [],
@@ -3237,11 +3238,12 @@ class IO
 			}
 		} else {
 			// if we try to use the same statement name for a differnt query, error abort
-			if ($this->prepare_cursor[$stm_name]['query'] != $query) {
+			if ($this->prepare_cursor[$stm_name]['query_raw'] != $query) {
 				// thrown error
 				$this->__dbError(26, false, context: [
 					'statement_name' => $stm_name,
 					'prepared_query' => $this->prepare_cursor[$stm_name]['query'],
+					'prepared_query_raw' => $this->prepare_cursor[$stm_name]['query_raw'],
 					'query' => $query,
 					'pk_name' => $pk_name,
 				]);
@@ -4364,6 +4366,37 @@ class IO
 		return $this->prepare_cursor[$stm_name][$key];
 	}
 
+	/**
+	 * Checks if a prepared query eixsts
+	 *
+	 * @param  string $stm_name Statement to check
+	 * @param  string $query [default=''] If set then query must also match
+	 * @return false|int<0,2>             False on missing stm_name
+	 *                                    0: ok, 1: stm_name matchin, 2: stm_name and query matching
+	 */
+	public function dbPreparedCursorStatus(string $stm_name, string $query = ''): false|int
+	{
+		if (empty($stm_name)) {
+			$this->__dbError(
+				101,
+				false,
+				'No statement name given'
+			);
+			return false;
+		}
+		// does not exist
+		$return_value = 0;
+		if (!empty($this->prepare_cursor[$stm_name]['query_raw'])) {
+			// statement name eixts
+			$return_value = 1;
+			if ($this->prepare_cursor[$stm_name]['query_raw'] == $query) {
+				// query also matches
+				$return_value = 2;
+			}
+		}
+		return $return_value;
+	}
+
 	// ***************************
 	// ERROR AND WARNING DATA
 	// ***************************

www/lib/CoreLibs/DeprecatedHelper/Deprecated84.php

@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * AUTHOR: Clemens Schwaighofer
+ * CREATED: 2025/1/17
+ * DESCRIPTION:
+ * Deprecated helper for fputcsv
+*/
+
+declare(strict_types=1);
+
+namespace CoreLibs\DeprecatedHelper;
+
+use InvalidArgumentException;
+
+class Deprecated84
+{
+	/**
+	 * This is a wrapper for fputcsv to fix deprecated warning for $escape parameter
+	 * See: https://www.php.net/manual/en/function.fputcsv.php
+	 * escape parameter deprecation and recommend to set to "" for compatible with PHP 9.0
+	 *
+	 * @param mixed $stream
+	 * @param array<mixed> $fields
+	 * @param string $separator
+	 * @param string $enclosure
+	 * @param string $escape
+	 * @param string $eol
+	 * @return int|false
+	 * @throws InvalidArgumentException
+	 */
+	public static function fputcsv(
+		mixed $stream,
+		array $fields,
+		string $separator = ",",
+		string $enclosure = '"',
+		string $escape = '', // set to empty for future compatible
+		string $eol = PHP_EOL
+	): int | false {
+		if (!is_resource($stream)) {
+			throw new \InvalidArgumentException("fputcsv stream parameter must be a resrouce");
+		}
+		return fputcsv($stream, $fields, $separator, $enclosure, $escape, $eol);
+	}
+
+	/**
+	 * This is a wrapper for fgetcsv to fix deprecated warning for $escape parameter
+	 * See: https://www.php.net/manual/en/function.fgetcsv.php
+	 * escape parameter deprecation and recommend to set to "" for compatible with PHP 9.0
+	 *
+	 * @param mixed $stream
+	 * @param null|int<0,max> $length
+	 * @param string $separator
+	 * @param string $enclosure
+	 * @param string $escape
+	 * @return array<mixed>|false
+	 * @throws InvalidArgumentException
+	 */
+	public static function fgetcsv(
+		mixed $stream,
+		?int $length = null,
+		string $separator = ',',
+		string $enclosure = '"',
+		string $escape = '' // set to empty for future compatible
+	): array | false {
+		if (!is_resource($stream)) {
+			throw new \InvalidArgumentException("fgetcsv stream parameter must be a resrouce");
+		}
+		return fgetcsv($stream, $length, $separator, $enclosure, $escape);
+	}
+
+	/**
+	 * This is a wrapper for str_getcsv to fix deprecated warning for $escape parameter
+	 * See: https://www.php.net/manual/en/function.str-getcsv.php
+	 * escape parameter deprecation and recommend to set to "" for compatible with PHP 9.0
+	 *
+	 * @param string $string
+	 * @param string $separator
+	 * @param string $enclosure
+	 * @param string $escape
+	 * @return array<mixed>
+	 */
+	// phpcs:disable PSR1.Methods.CamelCapsMethodName
+	public static function str_getcsv(
+		string $string,
+		string $separator = ",",
+		string $enclosure = '"',
+		string $escape = '' // set to empty for future compatible
+	): array {
+		return str_getcsv($string, $separator, $enclosure, $escape);
+	}
+	// phpcs:enable PSR1.Methods.CamelCapsMethodName
+}
+
+// __END__

www/lib/CoreLibs/Logging/Logging.php

@@ -30,6 +30,10 @@ class Logging
 {
 	/** @var int minimum size for a max file size, so we don't set 1 byte, 10kb */
 	public const MIN_LOG_MAX_FILESIZE = 10 * 1024;
+	/** @var string log file extension, not changeable */
+	private const LOG_FILE_NAME_EXT = "log";
+	/** @var string log file block separator, not changeable */
+	private const LOG_FILE_BLOCK_SEPARATOR = '.';
 
 	// NOTE: the second party array{} hs some errors
 	/** @var array<string,array<string,string|bool|Level>>|array{string:array{type:string,type_info?:string,mandatory:true,alias?:string,default:string|bool|Level,deprecated:bool,use?:string}} */
@@ -104,8 +108,6 @@ class Logging
 	private string $log_folder = '';
 	/** @var string a alphanumeric name that has to be set as global definition */
 	private string $log_file_id = '';
-	/** @var string log file name extension */
-	private string $log_file_name_ext = 'log';
 	/** @var string log file name with folder, for actual writing */
 	private string $log_file_name = '';
 	/** @var int set in bytes */
@@ -431,7 +433,7 @@ class Logging
 	private function buildLogFileName(Level $level, string $group_id = ''): string
 	{
 		// init base file path
-		$fn = $this->log_print_file . '.' . $this->log_file_name_ext;
+		$fn = $this->log_print_file . '.' . self::LOG_FILE_NAME_EXT;
 		// log ID prefix settings, if not valid, replace with empty
 		if (!empty($this->log_file_id)) {
 			$rpl_string = $this->log_file_id;
@@ -440,14 +442,15 @@ class Logging
 		}
 		$fn = str_replace('{LOGID}', $rpl_string, $fn); // log id (like a log file prefix)
 
-		$rpl_string = !$this->getLogFlag(Flag::per_level) ? '' :
-			'_' . $level->getName();
+		$rpl_string = $this->getLogFlag(Flag::per_level) ?
+			self::LOG_FILE_BLOCK_SEPARATOR . $level->getName() :
+			'';
 		$fn = str_replace('{LEVEL}', $rpl_string, $fn); // create output filename
 
 		// write per level
-		$rpl_string = !$this->getLogFlag(Flag::per_group) ? '' :
+		$rpl_string = $this->getLogFlag(Flag::per_group) ?
 			// normalize level, replace all non alphanumeric characters with -
-			'_' . (
+			self::LOG_FILE_BLOCK_SEPARATOR . (
 				// if return is only - then set error string
 				preg_match(
 					"/^-+$/",
@@ -455,25 +458,29 @@ class Logging
 				) ?
 					'INVALID-LEVEL-STRING' :
 					$level_string
-			);
+			) :
+			'';
 		$fn = str_replace('{GROUP}', $rpl_string, $fn); // create output filename
 		// set per class, but don't use get_class as we will only get self
-		$rpl_string = !$this->getLogFlag(Flag::per_class) ? '' : '_'
-			// set sub class settings
-			. str_replace('\\', '-', Support::getCallerTopLevelClass());
+		$rpl_string = $this->getLogFlag(Flag::per_class) ?
+				// set sub class settings
+				self::LOG_FILE_BLOCK_SEPARATOR . str_replace('\\', '-', Support::getCallerTopLevelClass()) :
+			'';
 		$fn = str_replace('{CLASS}', $rpl_string, $fn); // create output filename
 
 		// if request to write to one file
-		$rpl_string = !$this->getLogFlag(Flag::per_page) ?
-			'' :
-			'_' . System::getPageName(System::NO_EXTENSION);
+		$rpl_string = $this->getLogFlag(Flag::per_page) ?
+			self::LOG_FILE_BLOCK_SEPARATOR . System::getPageName(System::NO_EXTENSION) :
+			'';
 		$fn = str_replace('{PAGENAME}', $rpl_string, $fn); // create output filename
 
 		// if run id, we auto add ymd, so we ignore the log file date
 		if ($this->getLogFlag(Flag::per_run)) {
-			$rpl_string = '_' . $this->getLogUniqueId(); // add 8 char unique string
+			// add 8 char unique string and date block with time
+			$rpl_string = self::LOG_FILE_BLOCK_SEPARATOR . $this->getLogUniqueId();
 		} elseif ($this->getLogFlag(Flag::per_date)) {
-			$rpl_string = '_' . $this->getLogDate(); // add date to file
+			// add date to file
+			$rpl_string = self::LOG_FILE_BLOCK_SEPARATOR . $this->getLogDate();
 		} else {
 			$rpl_string = '';
 		}
@@ -739,7 +746,10 @@ class Logging
 	{
 		if (empty($this->log_file_unique_id) || $override == true) {
 			$this->log_file_unique_id =
-				date('Y-m-d_His') . '_U_'
+				date('Y-m-d_His')
+					. self::LOG_FILE_BLOCK_SEPARATOR
+					. 'U_'
+					// this doesn't have to be unique for everything, just for this logging purpose
 					. substr(hash(
 						'sha1',
 						random_bytes(63)