diff --git a/adodb.inc.php b/adodb.inc.php
index e7d867191..73bef1efd 100644
--- a/adodb.inc.php
+++ b/adodb.inc.php
@@ -1666,6 +1666,18 @@ function _Execute($sql,$inputarr=false) {
 		return $rs;
 	}
 
+	/**
+	 * Execute a query.
+	 *
+	 * @param string|array $sql        Query to execute.
+	 * @param array        $inputarr   An optional array of parameters.
+	 *
+	 * @return mixed|bool Query identifier or true if execution successful, false if failed.
+	 */
+	function _query($sql, $inputarr = false) {
+		return false;
+	}
+
 	function CreateSequence($seqname='adodbseq',$startID=1) {
 		if (empty($this->_genSeqSQL)) {
 			return false;
diff --git a/drivers/adodb-ado.inc.php b/drivers/adodb-ado.inc.php
index fc000cecb..a0b6ffa91 100644
--- a/drivers/adodb-ado.inc.php
+++ b/drivers/adodb-ado.inc.php
@@ -208,10 +208,6 @@ function MetaColumns($table, $normalize=true)
 		return empty($arr) ? $false : $arr;
 	}
 
-
-
-
-	/* returns queryID or false */
 	function _query($sql,$inputarr=false)
 	{
 
diff --git a/drivers/adodb-ado5.inc.php b/drivers/adodb-ado5.inc.php
index 36f9c3b8d..8b641cf7d 100644
--- a/drivers/adodb-ado5.inc.php
+++ b/drivers/adodb-ado5.inc.php
@@ -233,7 +233,6 @@ function MetaColumns($table, $normalize=true)
 		return $arr;
 	}
 
-	/* returns queryID or false */
 	function _query($sql,$inputarr=false)
 	{
 		try { // In PHP5, all COM errors are exceptions, so to maintain old behaviour...
diff --git a/drivers/adodb-ads.inc.php b/drivers/adodb-ads.inc.php
index 8b877b6df..16eec9766 100644
--- a/drivers/adodb-ads.inc.php
+++ b/drivers/adodb-ads.inc.php
@@ -564,7 +564,6 @@ function Prepare($sql)
 		return array($sql, $stmt, false);
 	}
 
-	/* returns queryID or false */
 	function _query($sql, $inputarr = false)
 	{
 		$last_php_error = $this->resetLastError();
diff --git a/drivers/adodb-fbsql.inc.php b/drivers/adodb-fbsql.inc.php
index a4255eb97..64913bc24 100644
--- a/drivers/adodb-fbsql.inc.php
+++ b/drivers/adodb-fbsql.inc.php
@@ -134,7 +134,6 @@ function SelectDB($dbName)
 	}
 
 
-	// returns queryID or false
 	function _query($sql,$inputarr=false)
 	{
 		return fbsql_query("$sql;",$this->_connectionID);
diff --git a/drivers/adodb-firebird.inc.php b/drivers/adodb-firebird.inc.php
index 133d9f43c..db3cca5d6 100644
--- a/drivers/adodb-firebird.inc.php
+++ b/drivers/adodb-firebird.inc.php
@@ -483,14 +483,14 @@ public function prepare($sql)
 	}
 
 	/**
-	* Return the query id.
-	*
-	* @param string|array $sql
-	* @param array $iarr
-	*
-	* @return bool|object
-	*/
-	function _query($sql, $iarr = false)
+	 * Execute a query.
+	 *
+	 * @param string|array $sql        Query to execute.
+	 * @param array        $inputarr   An optional array of parameters.
+	 *
+	 * @return object|bool Query identifier or true if execution successful, false if failed.
+	 */
+	function _query($sql, $inputarr = false)
 	{
 		if (!$this->isConnected()) {
 			return false;
@@ -512,8 +512,8 @@ function _query($sql, $iarr = false)
 			$fn = 'fbird_query';
 			$args = [$conn, $sql];
 		}
-		if (is_array($iarr)) {
-			$args = array_merge($args, $iarr);
+		if (is_array($inputarr)) {
+			$args = array_merge($args, $inputarr);
 		}
 		$ret = call_user_func_array($fn, $args);
 
diff --git a/drivers/adodb-ibase.inc.php b/drivers/adodb-ibase.inc.php
index 25a9c3e86..fe9e033b0 100644
--- a/drivers/adodb-ibase.inc.php
+++ b/drivers/adodb-ibase.inc.php
@@ -332,7 +332,7 @@ function Prepare($sql)
 
 	// returns query ID if successful, otherwise false
 	// there have been reports of problems with nested queries - the code is probably not re-entrant?
-	function _query($sql,$iarr=false)
+	function _query($sql, $inputarr = false)
 	{
 		if (!$this->autoCommit && $this->_transactionID) {
 			$conn = $this->_transactionID;
@@ -344,11 +344,11 @@ function _query($sql,$iarr=false)
 		if (is_array($sql)) {
 			$fn = 'ibase_execute';
 			$sql = $sql[1];
-			if (is_array($iarr)) {
-				if (!isset($iarr[0])) {
-					$iarr[0] = '';  // PHP5 compat hack
+			if (is_array($inputarr)) {
+				if (!isset($inputarr[0])) {
+					$inputarr[0] = '';  // PHP5 compat hack
 				}
-				$fnarr = array_merge(array($sql), $iarr);
+				$fnarr = array_merge(array($sql), $inputarr);
 				$ret = call_user_func_array($fn, $fnarr);
 			} else {
 				$ret = $fn($sql);
@@ -356,11 +356,11 @@ function _query($sql,$iarr=false)
 		} else {
 			$fn = 'ibase_query';
 
-			if (is_array($iarr)) {
-				if (sizeof($iarr) == 0) {
-					$iarr[0] = ''; // PHP5 compat hack
+			if (is_array($inputarr)) {
+				if (sizeof($inputarr) == 0) {
+					$inputarr[0] = ''; // PHP5 compat hack
 				}
-				$fnarr = array_merge(array($conn, $sql), $iarr);
+				$fnarr = array_merge(array($conn, $sql), $inputarr);
 				$ret = call_user_func_array($fn, $fnarr);
 			} else {
 				$ret = $fn($conn, $sql);
diff --git a/drivers/adodb-informix72.inc.php b/drivers/adodb-informix72.inc.php
index 759bd5c8f..6fddde3d6 100644
--- a/drivers/adodb-informix72.inc.php
+++ b/drivers/adodb-informix72.inc.php
@@ -334,7 +334,6 @@ function Prepare($sql)
 		else return array($sql,$stmt);
 	}
 */
-	// returns query ID if successful, otherwise false
 	function _query($sql,$inputarr=false)
 	{
 	global $ADODB_COUNTRECS;
diff --git a/drivers/adodb-ldap.inc.php b/drivers/adodb-ldap.inc.php
index 323b35856..305f6a7ff 100644
--- a/drivers/adodb-ldap.inc.php
+++ b/drivers/adodb-ldap.inc.php
@@ -157,7 +157,6 @@ function _inject_bind_options( $options ) {
 		}
 	}
 
-	/* returns _queryID or false */
 	function _query($sql,$inputarr=false)
 	{
 		$rs = @ldap_search( $this->_connectionID, $this->database, $sql );
diff --git a/drivers/adodb-mssql.inc.php b/drivers/adodb-mssql.inc.php
index 269dd7ed3..c0b714ede 100644
--- a/drivers/adodb-mssql.inc.php
+++ b/drivers/adodb-mssql.inc.php
@@ -725,7 +725,6 @@ function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
 		return $this->Execute($sql) != false;
 	}
 
-	// returns query ID if successful, otherwise false
 	function _query($sql,$inputarr=false)
 	{
 		$this->_errorMsg = false;
diff --git a/drivers/adodb-mysqli.inc.php b/drivers/adodb-mysqli.inc.php
index dcdb487bc..8dc67b887 100644
--- a/drivers/adodb-mysqli.inc.php
+++ b/drivers/adodb-mysqli.inc.php
@@ -1179,14 +1179,14 @@ private function getBindParamWithType($inputArr): array
 	}
 
 	/**
-	* Return the query id.
-	*
-	* @param string|array $sql
-	* @param array $inputarr
-	*
-	* @return bool|mysqli_result
+	 * Execute a query.
+	 *
+	 * @param string|array $sql        Query to execute.
+	 * @param array        $inputarr   An optional array of parameters.
+	 *
+	 * @return mysqli_result|bool
 	*/
-	function _query($sql, $inputarr)
+	function _query($sql, $inputarr = false)
 	{
 		global $ADODB_COUNTRECS;
 		// Move to the next recordset, or return false if there is none. In a stored proc
diff --git a/drivers/adodb-oci8.inc.php b/drivers/adodb-oci8.inc.php
index 211fa9a2c..f361d6836 100644
--- a/drivers/adodb-oci8.inc.php
+++ b/drivers/adodb-oci8.inc.php
@@ -1272,7 +1272,8 @@ function Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false)
 	}
 
 	/**
-	 * returns query ID if successful, otherwise false
+	 * Execute a query.
+	 *
 	 * this version supports:
 	 *
 	 * 1. $db->execute('select * from table');
@@ -1285,6 +1286,11 @@ function Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false)
 	 * 4. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)');
 	 *    $db->bind($stmt,1); $db->bind($stmt,2); $db->bind($stmt,3);
 	 *    $db->execute($stmt);
+	 *
+	 * @param string|array $sql        Query to execute.
+	 * @param array        $inputarr   An optional array of parameters.
+	 *
+	 * @return mixed|bool Query identifier or true if execution successful, false if failed.
 	 */
 	function _query($sql,$inputarr=false)
 	{
diff --git a/drivers/adodb-oci8po.inc.php b/drivers/adodb-oci8po.inc.php
index aaf4bb5fa..71c203b62 100644
--- a/drivers/adodb-oci8po.inc.php
+++ b/drivers/adodb-oci8po.inc.php
@@ -70,7 +70,16 @@ function SelectLimit($sql, $nrows=-1, $offset=-1, $inputarr=false, $secs2cache=0
 		return ADOConnection::SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache);
 	}
 
-	// emulate handling of parameters ? ?, replacing with :bind0 :bind1
+	/**
+	 * Execute a query.
+	 *
+	 * Emulate handling of parameters ? ?, replacing with :bind0 :bind1
+	 *
+	 * @param string|array $sql        Query to execute.
+	 * @param array        $inputarr   An optional array of parameters.
+	 *
+	 * @return mixed|bool Query identifier or true if execution successful, false if failed.
+	 */
 	function _query($sql,$inputarr=false)
 	{
 		if (is_array($inputarr)) {
diff --git a/drivers/adodb-odbc.inc.php b/drivers/adodb-odbc.inc.php
index 508711a30..9b214c533 100644
--- a/drivers/adodb-odbc.inc.php
+++ b/drivers/adodb-odbc.inc.php
@@ -518,7 +518,6 @@ function Prepare($sql)
 		return array($sql,$stmt,false);
 	}
 
-	/* returns queryID or false */
 	function _query($sql,$inputarr=false)
 	{
 		$last_php_error = $this->resetLastError();
diff --git a/drivers/adodb-oracle.inc.php b/drivers/adodb-oracle.inc.php
index 1a2735b14..dc0462fe2 100644
--- a/drivers/adodb-oracle.inc.php
+++ b/drivers/adodb-oracle.inc.php
@@ -181,7 +181,6 @@ function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
 		}
 
 
-		// returns query ID if successful, otherwise false
 		function _query($sql,$inputarr=false)
 		{
             // <G. Giunta 2003/03/03/> Reset error messages before executing
diff --git a/drivers/adodb-pdo.inc.php b/drivers/adodb-pdo.inc.php
index 0fbe3e2f7..d3ce12d08 100644
--- a/drivers/adodb-pdo.inc.php
+++ b/drivers/adodb-pdo.inc.php
@@ -578,7 +578,6 @@ function GenID($seqname='adodbseq',$startID=1)
 	}
 
 
-	/* returns queryID or false */
 	function _query($sql,$inputarr=false)
 	{
 		$ok = false;
diff --git a/drivers/adodb-postgres64.inc.php b/drivers/adodb-postgres64.inc.php
index 23a219589..9bf9e713c 100644
--- a/drivers/adodb-postgres64.inc.php
+++ b/drivers/adodb-postgres64.inc.php
@@ -784,7 +784,6 @@ function _pconnect($str,$user='',$pwd='',$db='')
 	}
 
 
-	// returns queryID or false
 	function _query($sql,$inputarr=false)
 	{
 		$this->_pnum = 0;
diff --git a/drivers/adodb-sqlite.inc.php b/drivers/adodb-sqlite.inc.php
index 0711f1dde..d41829c04 100644
--- a/drivers/adodb-sqlite.inc.php
+++ b/drivers/adodb-sqlite.inc.php
@@ -211,7 +211,6 @@ function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
 		return true;
 	}
 
-	// returns query ID if successful, otherwise false
 	function _query($sql,$inputarr=false)
 	{
 		$rez = sqlite_query($sql,$this->_connectionID);
diff --git a/drivers/adodb-sqlite3.inc.php b/drivers/adodb-sqlite3.inc.php
index 318171a8c..7623a3c88 100644
--- a/drivers/adodb-sqlite3.inc.php
+++ b/drivers/adodb-sqlite3.inc.php
@@ -331,7 +331,6 @@ function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
 		return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename);
 	}
 
-	// returns query ID if successful, otherwise false
 	function _query($sql,$inputarr=false)
 	{
 		$rez = $this->_connectionID->query($sql);
diff --git a/drivers/adodb-sybase.inc.php b/drivers/adodb-sybase.inc.php
index 5eb217a84..79fb82e8b 100644
--- a/drivers/adodb-sybase.inc.php
+++ b/drivers/adodb-sybase.inc.php
@@ -170,7 +170,6 @@ function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
 		return true;
 	}
 
-	// returns query ID if successful, otherwise false
 	function _query($sql,$inputarr=false)
 	{
 	global $ADODB_COUNTRECS;
diff --git a/drivers/adodb-text.inc.php b/drivers/adodb-text.inc.php
index 77ad06a0b..36a1a0d4d 100644
--- a/drivers/adodb-text.inc.php
+++ b/drivers/adodb-text.inc.php
@@ -129,14 +129,21 @@ function Connect(&$array, $types = false, $colnames = false)
 		return true;
 	}
 
-
-
-	// returns queryID or false
-	// We presume that the select statement is on the same table (what else?),
-	// with the only difference being the order by.
-	//You can filter by using $eval and each clause is stored in $arr .eg. $arr[1] == 'name'
-	// also supports SELECT [DISTINCT] COL FROM ... -- only 1 col supported
-	function _query($sql,$input_arr,$eval=false)
+	/**
+	 * Execute a query.
+	 *
+	 * We presume that the select statement is on the same table (what else?),
+	 * with the only difference being the order by.
+	 * You can filter by using $eval and each clause is stored in $arr e.g. $arr[1] == 'name'
+	 * also supports SELECT [DISTINCT] COL FROM ... -- only 1 col supported
+	 *
+	 * @param string|array $sql      Query to execute.
+	 * @param array        $inputarr An optional array of parameters.
+	 * @param string       $eval     Optional eval string
+	 *
+	 * @return mixed|bool Query identifier or true if execution successful, false if failed.
+	 */
+	function _query($sql, $inputarr=false, $eval=false)
 	{
 		if ($this->_origarray === false) return false;