- Properly fixed bug #49985 (pdo_pgsql prepare() re-use previous aborted transaction).

# Removed usage of the memory address when generating prepared statemend names
# as uniqueness can't be enforced. Used a statment counter instead.

NEWS

@@ -28,7 +28,7 @@ PHP                                                                        NEWS
 - Fixed bug #49990 (SNMP3 warning message about security level printed twice).
   (Jani)
 - Fixed bug #49985 (pdo_pgsql prepare() re-use previous aborted
-  transaction). (ben dot pineau at gmail dot com, Ilia)  
+  transaction). (ben dot pineau at gmail dot com, Ilia, Matteo)  
 - Fixed bug #49921 (Curl post upload functions changed). (Ilia)
 - Fixed bug #49855 (import_request_variables() always returns NULL). (Ilia,
   sjoerd at php dot net)

ext/pdo_pgsql/pgsql_driver.c

@@ -232,7 +232,7 @@ static int pgsql_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len,
 		if (S->cursor_name) {
 			efree(S->cursor_name);
 		}
-		spprintf(&S->cursor_name, 0, "pdo_crsr_%016lx", (unsigned long) stmt);
+		spprintf(&S->cursor_name, 0, "pdo_crsr_%08x", ++H->stmt_counter);
 #if HAVE_PQPREPARE
 		emulate = 1;
 #endif
@@ -262,7 +262,7 @@ static int pgsql_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len,
 			return 0;
 		}
 
-		spprintf(&S->stmt_name, 0, "pdo_stmt_%016lx", (unsigned long)stmt);
+		spprintf(&S->stmt_name, 0, "pdo_stmt_%08x", ++H->stmt_counter);
 		/* that's all for now; we'll defer the actual prepare until the first execute call */
 	
 		if (nsql) {

ext/pdo_pgsql/pgsql_statement.c

@@ -185,7 +185,7 @@ stmt_retry:
 					 * deallocate it and retry ONCE (thies 2005.12.15)
 					 */
 					if (!strcmp(sqlstate, "42P05")) {
-						char buf[100]; /* stmt_name == "pdo_crsr_%016lx" */
+						char buf[100]; /* stmt_name == "pdo_crsr_%08x" */
 						PGresult *res;
 						snprintf(buf, sizeof(buf), "DEALLOCATE %s", S->stmt_name);
 						res = PQexec(H->server, buf);

ext/pdo_pgsql/php_pdo_pgsql_int.h

@@ -50,6 +50,7 @@ typedef struct {
 	int		emulate_prepares;
 	int		disable_native_prepares;
 #endif
+	unsigned int stmt_counter;
 } pdo_pgsql_db_handle;
 
 typedef struct {

ext/pdo_pgsql/tests/bug_49985.phpt

@@ -0,0 +1,35 @@
+--TEST--
+Bug #49985 (pdo_pgsql prepare() re-use previous aborted transaction)
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo') || !extension_loaded('pdo_pgsql')) die('skip not loaded');
+require dirname(__FILE__) . '/config.inc';
+require dirname(__FILE__) . '/../../../ext/pdo/tests/pdo_test.inc';
+PDOTest::skip();
+?>
+--FILE--
+<?php
+require dirname(__FILE__) . '/../../../ext/pdo/tests/pdo_test.inc';
+$db = PDOTest::test_factory(dirname(__FILE__) . '/common.phpt');
+$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+$db->exec("CREATE TABLE test (a int PRIMARY KEY)");
+
+for ($i = 0; $i < 3; $i++) {
+    try {
+        $db->beginTransaction();
+        $stmt = $db->prepare("INSERT INTO test (a) VALUES (?)");
+        var_dump($stmt->execute(array(1)));
+        $db->commit();
+    } catch (Exception $e) {
+        echo $e->getMessage()."\n";
+        $db->rollback();
+    }
+}
+
+?>
+--EXPECTF--
+bool(true)
+SQLSTATE[23505]: %s"test_pkey"
+SQLSTATE[23505]: %s"test_pkey"
+