Add better error reporting to DB\IO for query with params

On error with query with params the query was sent to the server and
if ther query itself is ok but there is a problem with the parameters
a wrong error message ($1 not found) will be returned

Add pg_last_error reporting to catch this too.

Update both error reporting to return not string and prefix combined
but prefix + error string in array

In error return check that both strings are not equal, so we do not
return the same error string twice.

Also default set dbh variable in the PgSQL class to false so it will
skip last error report if there is no dbh set yet.

Bug fix for db query with params debug output. if there are more than 9
entries the $1 of eg $10 is replaced with $1 entry again. Changed to
'#' instead '$' to avoid this.

Other:
ACL\Login: replace EOM with HTML
config.master: replace list() with []
Add single DB tester where we can test single db calls without adding
more to the general test run

4dev/tests/DB/CoreLibsDBIOTest.php

@@ -156,7 +156,7 @@ final class CoreLibsDBIOTest extends TestCase
 			$db->dbExec("DROP TABLE test_meta");
 		}
 		// uid is for internal reference tests
-		$base_table = <<<EOM
+		$base_table = <<<SQL
 			uid VARCHAR,
 			row_int INT,
 			row_numeric NUMERIC,
@@ -172,36 +172,36 @@ final class CoreLibsDBIOTest extends TestCase
 			row_array_varchar VARCHAR ARRAY
 		)
 		WITHOUT OIDS
-		EOM;
+		SQL;
 		// create the tables
 		$db->dbExec(
 			// primary key name is table + '_id'
-			<<<EOM
+			<<<SQL
 			CREATE TABLE table_with_primary_key (
 				table_with_primary_key_id SERIAL PRIMARY KEY,
 				$base_table
-			EOM
+			SQL
 			/* "CREATE TABLE table_with_primary_key ("
 			// primary key name is table + '_id'
 			. "table_with_primary_key_id SERIAL PRIMARY KEY, "
 			. $base_table */
 		);
 		$db->dbExec(
-			<<<EOM
+			<<<SQL
 			CREATE TABLE table_without_primary_key (
 				$base_table
-			EOM
+			SQL
 			/* "CREATE TABLE table_without_primary_key ("
 			. $base_table */
 		);
 		// create simple table for meta test
 		$db->dbExec(
-			<<<EOM
+			<<<SQL
 			CREATE TABLE test_meta (
 				row_1 VARCHAR,
 				row_2 INT
 			) WITHOUT OIDS
-			EOM
+			SQL
 			/* "CREATE TABLE test_meta ("
 			. "row_1 VARCHAR, "
 			. "row_2 INT"
@@ -1342,10 +1342,10 @@ final class CoreLibsDBIOTest extends TestCase
 						'has default' => false,
 						'array dims' => 0,
 						'is enum' => false,
-						'is base' => 1,
+						'is base' => true,
 						'is composite' => false,
-						'is pesudo' => false,
 						'description' => '',
+						'is pseudo' => false
 					],
 					'row_2' => [
 						'num' => 2,
@@ -1355,10 +1355,10 @@ final class CoreLibsDBIOTest extends TestCase
 						'has default' => false,
 						'array dims' => 0,
 						'is enum' => false,
-						'is base' => 1,
+						'is base' => true,
 						'is composite' => false,
-						'is pesudo' => false,
 						'description' => '',
+						'is pseudo' => false
 					]
 				]
 			],
@@ -1374,10 +1374,10 @@ final class CoreLibsDBIOTest extends TestCase
 						'has default' => false,
 						'array dims' => 0,
 						'is enum' => false,
-						'is base' => 1,
+						'is base' => true,
 						'is composite' => false,
-						'is pesudo' => false,
 						'description' => '',
+						'is pseudo' => false
 					],
 					'row_2' => [
 						'num' => 2,
@@ -1387,10 +1387,10 @@ final class CoreLibsDBIOTest extends TestCase
 						'has default' => false,
 						'array dims' => 0,
 						'is enum' => false,
-						'is base' => 1,
+						'is base' => true,
 						'is composite' => false,
-						'is pesudo' => false,
 						'description' => '',
+						'is pseudo' => false
 					]
 				]
 			],
@@ -4425,16 +4425,16 @@ final class CoreLibsDBIOTest extends TestCase
 					]
 				]
 			],
-			// same but as EOM
+			// same but as heredoc
-			'single insert (PK), EOM string' => [
+			'single insert (PK), heredoc string' => [
-				<<<EOM
+				<<<SQL
 				INSERT INTO table_with_primary_key (
 					row_varchar, row_varchar_literal, row_int, row_date
 				) VALUES (
 					'Text', 'Other', 123, '2022-03-01'
 				)
 				RETURNING row_varchar, row_varchar_literal, row_int, row_date
-				EOM,
+				SQL,
 				null,
 				null,
 				null,
@@ -4529,16 +4529,16 @@ final class CoreLibsDBIOTest extends TestCase
 					]
 				]
 			],
-			// same as above but as EOM string
+			// same as above but as heredoc string
-			'single insert (No PK), EOM string' => [
+			'single insert (No PK), heredoc string' => [
-				<<<EOM
+				<<<SQL
 				INSERT INTO table_without_primary_key (
 					row_varchar, row_varchar_literal, row_int, row_date
 				) VALUES (
 					'Text', 'Other', 123, '2022-03-01'
 				)
 				RETURNING row_varchar, row_varchar_literal, row_int, row_date
-				EOM,
+				SQL,
 				null,
 				null,
 				null,

www/admin/class_test.db.php

@@ -141,14 +141,14 @@ var_dump($db->dbGetReturningExt());
 
 // same as above but use an EOM string
 $some_time = time();
-$query = <<<EOM
+$query = <<<SQL
 INSERT INTO test_foo (
 	test, number_a
 ) VALUES (
 	'EOM FOO TEST $some_time', 1
 )
 RETURNING test, number_a
-EOM;
+SQL;
 $status = $db->dbExec($query);
 print "EOM STRING DIRECT INSERT STATUS: " . Support::printToString($status) . " |<br>"
 	. "QUERY: " . $db->dbGetQuery() . " |<br>"
@@ -167,21 +167,21 @@ print "DIRECT INSERT PREVIOUS INSERTED: "
 	. print_r($db->dbReturnRow("SELECT test_foo_id, test FROM test_foo "
 		. "WHERE test_foo_id = " . (int)$last_insert_pk), true) . "<br>";
 $__last_insert_pk = (int)$last_insert_pk;
-$query = <<<EOM
+$query = <<<SQL
 SELECT
 	test_foo_id, test
 FROM test_foo
 WHERE test_foo_id = $__last_insert_pk;
-EOM;
+SQL;
 print "EOM READ OF PREVIOUS INSERTED: " . print_r($db->dbReturnRow($query), true) . "<br>";
 print "LAST ERROR: " . $db->dbGetLastError() . "<br>";
 print "<br>";
-$query = <<<EOM
+$query = <<<SQL
 	SELECT
 		test_foo_id, test
 	FROM test_foo
 	WHERE test_foo_id = $1;
-EOM;
+SQL;
 print "RETURN ROW PARAMS: " . print_r(
 	$db->dbReturnRowParams(
 		$query,
@@ -208,7 +208,7 @@ foreach (['pk_name', 'count', 'query', 'returning_id'] as $key) {
 	print "KEY: " . $key . ': ' . $db->dbGetPrepareCursorValue('ins_test_foo', $key) . "<br>";
 }
 
-$query = <<<EOM
+$query = <<<SQL
 INSERT INTO
 	test_foo
 (
@@ -217,7 +217,7 @@ INSERT INTO
 	$1, '$2'
 )
 RETURNING test, string_a
-EOM;
+SQL;
 $db->dbPrepare("ins_test_foo_eom", $query);
 $status = $db->dbExecute("ins_test_foo_eom", ['EOM BAR TEST ' . time()]);
 print "EOM STRING PREPARE INSERT[ins_test_foo_eom] STATUS: " . Support::printToString($status) . " |<br>"
@@ -235,7 +235,7 @@ print "EOM STRING EXEC PARAMS INSERT STATUS: " . Support::printToString($status)
 	. "RETURNING RETURN: " . print_r($db->dbGetReturningArray(), true) . "<br>";
 
 // I/S Query
-$query_insert = <<<EOM
+$query_insert = <<<SQL
 INSERT INTO
 	test_foo
 (
@@ -246,8 +246,8 @@ INSERT INTO
 	$6, $7, $8
 )
 RETURNING test
-EOM;
+SQL;
-$query_select = <<<EOM
+$query_select = <<<SQL
 SELECT
 	test, some_bool, string_a, number_a, number_a_numeric,
 	some_time, some_time, some_timestamp, json_string
@@ -255,7 +255,7 @@ FROM
 	test_foo
 WHERE
 	test_foo_id = $1
-EOM;
+SQL;
 // A
 $status = $db->dbExecParams(
 	$query_insert,
@@ -313,18 +313,51 @@ print "EOM STRING EXEC RETURN TEST: " . print_r(
 		[$__last_insert_id]
 	)
 ) . "<br>";
+// params > 10 for debug
+// error catcher
+$query_insert = <<<SQL
+INSERT INTO many_columns (
+	col_01_int,
+	col_01, col_02, col_03, col_04, col_05, col_06, col_07, col_08, col_09,
+    col_10, col_11, col_12, col_02_int
+) VALUES (
+	1,
+	$1, $2, $3, $4, $5, $6, $7, $8, $9,
+	$10, $11, $12, $13
+)
+RETURNING
+	many_columns_id,
+	col_01_int,
+	col_01, col_02, col_03, col_04, col_05, col_06, col_07, col_08, col_09,
+    col_10, col_11, col_12, col_02_int
+SQL;
+// will fail with "NULL" string on int
+$query_params = [
+	'col 1', 'col 2', 'col 3', 'col 4', 'col 5', 'col 6', 'col 7', 'col 8',
+	'col 9',
+	'col 10', 'col 11', 'col 12', "NULL"
+];
+$status = $db->dbExecParams($query_insert, $query_params);
+echo "<b>*</b><br>";
+echo "EOM STRING WITH MORE THAN 10 PARAMETERS: "
+	. Support::printToString($query_params) . " |<br>"
+	. " |<br>"
+	. "PRIMARY KEY: " . Support::printToString($db->dbGetInsertPK()) . " | "
+	. "RETURNING EXT: " . print_r($db->dbGetReturningExt(), true) . " | "
+	. "RETURNING RETURN: " . print_r($db->dbGetReturningArray(), true)
+	. "ERROR: " . $db->dbGetLastError(true) . "<br>";
 echo "<hr>";
 // binary insert tests
 $filename = $db->dbEscapeLiteral('class_test.db.php');
 $rand_bin_uid = $db->dbEscapeLiteral(\CoreLibs\Create\Uids::uniqIdShort());
 $binary_data = $db->dbEscapeBytea(file_get_contents('class_test.db.php') ?:  '');
-$query = <<<EOM
+$query = <<<SQL
 INSERT INTO binary_test (
 	filename, uid, binary_data
 ) VALUES (
 	$filename, $rand_bin_uid, '$binary_data'
 )
-EOM;
+SQL;
 $status = $db->dbExec($query);
 $__last_insert_id = $db->dbGetInsertPK();
 print "BINARY DATA INSERT: "
@@ -336,13 +369,13 @@ print "BINARY DATA INSERT: "
 	. "ERROR: " . $db->dbGetLastError(true) . "<br>";
 
 echo "<b>*</b><br>";
-$query = <<<EOM
+$query = <<<SQL
 INSERT INTO binary_test (
 	filename, uid, binary_data
 ) VALUES (
 	$1, $2, $3
 )
-EOM;
+SQL;
 $status = $db->dbExecParams($query, [$filename, $rand_bin_uid, $binary_data]);
 $__last_insert_id = $db->dbGetInsertPK();
 print "BINARY DATA INSERT PARAMS: "
@@ -380,7 +413,7 @@ print "DIRECT MULTIPLE INSERT WITH RETURN STATUS: " . Support::printToString($st
 $t_1 = time();
 $t_2 = time();
 $t_3 = time();
-$query = <<<EOM
+$query = <<<SQL
 INSERT INTO test_foo (
 	test
 ) VALUES
@@ -388,7 +421,7 @@ INSERT INTO test_foo (
 ('EOM BAR 2 $t_2'),
 ('EOM BAR 3 $t_3')
 RETURNING test_foo_id, test
-EOM;
+SQL;
 $status = $db->dbExec($query);
 print "EOM STRING DIRECT MULTIPLE INSERT WITH RETURN STATUS: " . Support::printToString($status) . " |<br>"
 	. "QUERY: " . $db->dbGetQuery() . " |<br>"
@@ -422,7 +455,7 @@ print "UPDATE WITH PK " . Support::printToString($last_insert_pk)
 	. "RETURNING ARRAY: " . print_r($db->dbGetReturningArray(), true) . "<br>";
 // UPDATE BUT EOM STYLE
 $status = $db->dbExecParams(
-	<<<EOM
+	<<<SQL
 	UPDATE
 		test_foo
 	SET
@@ -432,7 +465,7 @@ $status = $db->dbExecParams(
 		tset_foo_id = ?
 	RETURNING
 		test_foo.test, string_a
-	EOM,
+	SQL,
 	['SOMETHING DIFFERENT EOM', (string)rand(1, 100)]
 );
 print "UPDATE EOM WITH PK " . Support::printToString($last_insert_pk)
@@ -524,27 +557,27 @@ echo "<hr>";
 print "EOM STYLE STRINGS<br>";
 $test_bar = $db->dbEscapeLiteral('SOMETHING DIFFERENT');
 // Test EOM block
-$q = <<<EOM
+$q = <<<SQL
 SELECT test_foo_id, test, some_bool, string_a, number_a,
 -- comment
 number_a_numeric, some_time
 FROM test_foo
 WHERE test = $test_bar
 ORDER BY test_foo_id DESC LIMIT 5
-EOM;
+SQL;
 while (is_array($res = $db->dbReturn($q))) {
 	print "ROW: <pre>" . print_r($res, true) . "</pre><br>";
 }
 echo "<hr>";
 print "DB RETURN PARAMS<br>";
-$q = <<<EOM
+$q = <<<SQL
 SELECT test_foo_id, test, some_bool, string_a, number_a,
 -- comment
 number_a_numeric, some_time
 FROM test_foo
 WHERE test = $1
 ORDER BY test_foo_id DESC LIMIT 5
-EOM;
+SQL;
 while (
 	is_array($res = $db->dbReturnParams($q, ['SOMETHING DIFFERENT']))
 ) {
@@ -632,14 +665,14 @@ print "Wrote to DB tabel $table with data " . print_r($data, true) . " and got p
 $query = "SELECT type, sdate, integer FROM foobar";
 $data = $db->dbReturnArray($query, true);
 print "RETURN ARRAY: " . $db->dbGetNumRows() . ", Full foobar list: <br><pre>" . print_r($data, true) . "</pre><br>";
-$query = <<<EOM
+$query = <<<SQL
 SELECT
 	type, sdate
 FROM
 	foobar
 WHERE
 	type = $1
-EOM;
+SQL;
 $data = $db->dbReturnArrayParams($query, ['schmalz'], true);
 print "RETURN ARRAY PARAMS: " . $db->dbGetNumRows() . ", Full foobar list: <br><pre>"
 	. print_r($data, true) . "</pre><br>";

www/admin/class_test.db.single.php

@@ -0,0 +1,105 @@
+<?php // phpcs:ignore warning
+
+/**
+ * @phan-file-suppress PhanTypeSuspiciousStringExpression
+ */
+
+declare(strict_types=1);
+
+// turn on all error reporting
+error_reporting(E_ALL | E_STRICT | E_ERROR | E_WARNING | E_PARSE | E_COMPILE_ERROR);
+
+ob_start();
+
+// basic class test file
+define('USE_DATABASE', true);
+// sample config
+require 'config.php';
+// override ECHO ALL FALSE
+$ECHO_ALL = true;
+// define log file id
+$LOG_FILE_ID = 'classTest-db-single';
+ob_end_flush();
+
+use CoreLibs\Debug\Support as DgS;
+use CoreLibs\DB\IO as DbIo;
+use CoreLibs\Debug\Support;
+use CoreLibs\Convert\SetVarType;
+
+$log = new CoreLibs\Debug\Logging([
+	'log_folder' => BASE . LOG,
+	'file_id' => $LOG_FILE_ID,
+	// add file date
+	'print_file_date' => true,
+	// set debug and print flags
+	'debug_all' => $DEBUG_ALL ?? true,
+	'echo_all' => $ECHO_ALL,
+	'print_all' => $PRINT_ALL ?? true,
+]);
+// db connection and attach logger
+$db = new CoreLibs\DB\IO(DB_CONFIG, $log);
+$db->log->debug('START', '=============================>');
+
+$PAGE_NAME = 'TEST CLASS: DB SINGLE';
+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><a href="class_test.db.dbReturn.php">Class Test DB dbReturn</a></div>';
+print '<div><h1>' . $PAGE_NAME . '</h1></div>';
+
+print "LOGFILE NAME: " . $db->log->getSetting('log_file_name') . "<br>";
+print "LOGFILE ID: " . $db->log->getSetting('log_file_id') . "<br>";
+print "DBINFO: " . $db->dbInfo() . "<br>";
+// DB client encoding
+print "DB client encoding: " . $db->dbGetEncoding() . "<br>";
+print "DB search path: " . $db->dbGetSchema() . "<br>";
+
+$to_db_version = '15.2';
+print "VERSION DB: " . $db->dbVersion() . "<br>";
+print "SERVER ENCODING: " . $db->dbVersionInfo('server_encoding') . "<br>";
+if (($dbh = $db->dbGetDbh()) instanceof \PgSql\Connection) {
+	print "ALL OUTPUT [TEST]: <pre>" . print_r(pg_version($dbh), true) . "</pre><br>";
+} else {
+	print "NO DB HANDLER<br>";
+}
+
+// params > 10 for debug
+// error catcher
+$query_insert = <<<SQL
+INSERT INTO many_columns (
+	col_01_int,
+	col_01, col_02, col_03, col_04, col_05, col_06, col_07, col_08, col_09,
+    col_10, col_11, col_12, col_02_int
+) VALUES (
+	1,
+	$1, $2, $3, $4, $5, $6, $7, $8, $9,
+	$10, $11, $12, $13
+)
+RETURNING
+	many_columns_id,
+	col_01_int,
+	col_01, col_02, col_03, col_04, col_05, col_06, col_07, col_08, col_09,
+    col_10, col_11, col_12, col_02_int
+SQL;
+$query_params = [
+	'col 1', 'col 2', 'col 3', 'col 4', 'col 5', 'col 6', 'col 7', 'col 8',
+	'col 9', 'col 10', 'col 11', 'col 12', null
+];
+$status = $db->dbExecParams($query_insert, $query_params);
+echo "<b>*</b><br>";
+echo "EOM STRING WITH MORE THAN 10 PARAMETERS: "
+	. Support::printToString($query_params) . " |<br>"
+	. " |<br>"
+	. "PRIMARY KEY: " . Support::printToString($db->dbGetInsertPK()) . " | "
+	// . "RETURNING EXT: " . Support::printToString($db->dbGetReturningExt()) . " | "
+	. "RETURNING RETURN: " . Support::printToString($db->dbGetReturningArray())
+	. "ERROR: " . $db->dbGetLastError(true) . "<br>";
+echo "<hr>";
+
+// error message
+print $log->printErrorMsg();
+
+print "</body></html>";
+
+// __END__

www/admin/class_test.php

@@ -73,6 +73,7 @@ print "<html><head><title>TEST CLASS</title><head>";
 print "<body>";
 
 print '<div><a href="class_test.db.php">Class Test: DB</a></div>';
+print '<div><a href="class_test.db.single.php">Class Test: DB SINGLE</a></div>';
 print '<div><a href="class_test.db.dbReturn.php">Class Test: DB dbReturn</a></div>';
 print '<div><a href="class_test.convert.colors.php">Class Test: CONVERT COLORS</a></div>';
 print '<div><a href="class_test.check.colors.php">Class Test: CHECK COLORS</a></div>';

www/configs/config.master.php

@@ -185,7 +185,7 @@ if (file_exists(BASE . CONFIGS . 'config.path.php')) {
 // live frontend pages
 // ** missing live domains **
 // get the name without the port
-list($HOST_NAME) = array_pad(explode(':', $_SERVER['HTTP_HOST'], 2), 2, null);
+[$HOST_NAME] = array_pad(explode(':', $_SERVER['HTTP_HOST'], 2), 2, null);
 // set HOST name
 define('HOST_NAME', $HOST_NAME);
 // BAIL ON MISSING MASTER SITE CONFIG

www/lib/CoreLibs/ACL/Login.php

@@ -1608,7 +1608,7 @@ class Login
 			// TODO: submit or JS to set target page as ajax call
 			// NOTE: for the HTML block I ignore line lengths
 			// phpcs:disable
-			$this->login_template['password_change'] = <<<EOM
+			$this->login_template['password_change'] = <<<HTML
 <div id="pw_change_div" class="hidden" style="position: absolute; top: 30px; left: 50px; width: 400px; height: 220px; background-color: white; border: 1px solid black; padding: 25px;">
 <table>
 <tr><td class="norm" align="center" colspan="2"><h3>{TITLE_PASSWORD_CHANGE}</h3></td></tr>
@@ -1626,7 +1626,7 @@ class Login
 </table>
 </div>
 {PASSWORD_CHANGE_SHOW}
-EOM;
+HTML;
 			// phpcs:enable
 		}
 		if ($this->password_forgot) {
@@ -1650,7 +1650,7 @@ EOM;
 		// now check templates
 		// TODO: submit or JS to set target page as ajax call
 		if (!$this->login_template['template']) {
-			$this->login_template['template'] = <<<EOM
+			$this->login_template['template'] = <<<HTML
 <!DOCTYPE html>
 <html lang="{LANGUAGE}">
 <head>
@@ -1712,7 +1712,7 @@ h3 { font-size: 18px; }
 </form>
 </body>
 </html>
-EOM;
+HTML;
 		}
 	}
 

www/lib/CoreLibs/DB/IO.php

@@ -735,7 +735,10 @@ class IO
 	 */
 	private function __dbErrorPreprocessor(\PgSql\Result|false $cursor = false): array
 	{
-		$pg_error_string = '';
+		$db_prefix = '';
+		$db_error_string = '';
+		$db_prefix_last = '';
+		$db_error_string_last = '';
 		// 1 = self/__dbErrorPreprocessor, 2 = __dbError, __dbWarning,
 		// 3+ == actual source
 		// loop until we get a null, build where called chain
@@ -749,16 +752,31 @@ class IO
 		if ($where_called === null) {
 			$where_called = '[Unknown Method]';
 		}
+		[$db_prefix_last, $db_error_string_last] = $this->db_functions->__dbPrintLastError();
 		if ($cursor !== false) {
-			$pg_error_string = $this->db_functions->__dbPrintError($cursor);
+			[$db_prefix, $db_error_string] = $this->db_functions->__dbPrintError($cursor);
 		}
 		if ($cursor === false && method_exists($this->db_functions, '__dbPrintError')) {
-			$pg_error_string = $this->db_functions->__dbPrintError();
+			[$db_prefix, $db_error_string] = $this->db_functions->__dbPrintError();
 		}
-		if ($pg_error_string) {
+		// prefix the master if not the same
-			$this->__dbDebug('db', $pg_error_string, 'DB_ERROR', $where_called);
+		if (
+			!empty($db_error_string_last) &&
+			trim($db_error_string) != trim($db_error_string_last)
+		) {
+			$db_error_string =
+				$db_prefix_last . ' ' . $db_error_string_last . ';'
+				. $db_prefix . ' ' . $db_error_string;
+		} elseif (!empty($db_error_string)) {
+			$db_error_string = $db_prefix . ' ' . $db_error_string;
 		}
-		return [$where_called, $pg_error_string];
+		if ($db_error_string) {
+			$this->__dbDebug('db', $db_error_string, 'DB_ERROR', $where_called);
+		}
+		return [
+			$where_called,
+			$db_error_string
+		];
 	}
 
 	/**
@@ -902,11 +920,14 @@ class IO
 		// because the placeholders start with $ and at 1,
 		// we need to increase each key and prefix it with a $ char
 		for ($i = 0, $iMax = count($keys); $i < $iMax; $i++) {
-			$keys[$i] = '$' . ($keys[$i] + 1);
+			// note: if I use $ here, the str_replace will
+			//       replace it again. eg $11 '$1'1would be replaced with $1 again
 			// prefix data set with parameter pos
-			$data[$i] = $keys[$i] . ':' . ($data[$i] === null ?
+			$data[$i] = '#' . ($keys[$i] + 1) . ':' . ($data[$i] === null ?
 				'"NULL"' : (string)$data[$i]
 			);
+			// search part
+			$keys[$i] = '$' . ($keys[$i] + 1);
 		}
 		// simply replace the $1, $2, ... with the actual data and return it
 		return str_replace(

www/lib/CoreLibs/DB/SQL/Interface/SqlFunctions.php

@@ -209,10 +209,17 @@ interface SqlFunctions
 	/**
 	 * Undocumented function
 	 *
-	 * @param \PgSql\Result|false $cursor
+	 * @return array{0:string,1:string}
-	 * @return string
 	 */
-	public function __dbPrintError(\PgSql\Result|false $cursor = false): string;
+	public function __dbPrintLastError(): array;
+
+	/**
+	 * Undocumented function
+	 *
+	 * @param \PgSql\Result|false $cursor
+	 * @return array{0:string,1:string}
+	 */
+	public function __dbPrintError(\PgSql\Result|false $cursor = false): array;
 
 	/**
 	 * Undocumented function

www/lib/CoreLibs/DB/SQL/PgSQL.php

@@ -61,7 +61,7 @@ class PgSQL implements Interface\SqlFunctions
 	/** @var string */
 	private $last_error_query;
 	/** @var \PgSql\Connection|false */
-	private $dbh;
+	private $dbh = false;
 
 	/**
 	 * queries last error query and returns true or false if error was set
@@ -532,18 +532,37 @@ class PgSQL implements Interface\SqlFunctions
 		return $this->dbh;
 	}
 
+	/**
+	 * Returns last error for active cursor
+	 *
+	 * @return array{0:string,1:string} prefix, error string
+	 */
+	public function __dbPrintLastError(): array
+	{
+		if (is_bool($this->dbh)) {
+			return ['', ''];
+		}
+		if (!empty($error_message = pg_last_error($this->dbh))) {
+			return [
+				'-PostgreSQL-Error-Last-',
+				$error_message
+			];
+		}
+		return ['', ''];
+	}
+
 	/**
 	 * reads the last error for this cursor and returns
 	 * html formatted string with error name
 	 *
 	 * @param  \PgSql\Result|false $cursor cursor
-	 *                              or null
+	 *                                     or null
-	 * @return string               error string
+	 * @return array{0:string,1:string} prefix, error string
 	 */
-	public function __dbPrintError(\PgSql\Result|false $cursor = false): string
+	public function __dbPrintError(\PgSql\Result|false $cursor = false): array
 	{
 		if (is_bool($this->dbh)) {
-			return '';
+			return ['', ''];
 		}
 		// run the query again for the error result here
 		if ((is_bool($cursor)) && $this->last_error_query) {
@@ -552,10 +571,12 @@ class PgSQL implements Interface\SqlFunctions
 			$cursor = pg_get_result($this->dbh);
 		}
 		if ($cursor && $error_str = pg_result_error($cursor)) {
-			return '-PostgreSQL-Error- '
+			return [
-				. $error_str;
+				'-PostgreSQL-Error-',
+				$error_str
+			];
 		} else {
-			return '';
+			return ['', ''];
 		}
 	}