Add GC support for PDO driver data

Add a get_gc method that can be implemented by drivers, which can
be used to add additional zvals to the GC buffer.

Implement GC support for PDO SQLite callbacks in particular.

Closes GH-6262.

1 files changed, 24 insertions, 0 deletions

diff --git a/ext/pdo_sqlite/tests/gc.phpt b/ext/pdo_sqlite/tests/gc.phpt
new file mode 100644
index 0000000000..25407697e6
--- /dev/null
+++ b/ext/pdo_sqlite/tests/gc.phpt
@@ -0,0 +1,24 @@
+--TEST--
+GC support for PDO Sqlite driver data
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo_sqlite')) print 'skip not loaded';
+?>
+--FILE--
+<?php
+
+class Obj {
+	public $a;
+	public function callback() { }
+}
+
+$obj = new Obj;
+$obj->a = new PDO('sqlite::memory:');
+$obj->a->sqliteCreateFunction('func1', function() use ($obj) {}, 1);
+$obj->a->sqliteCreateAggregate('func2', function() use ($obj) {}, function() use($obj) {});
+$obj->a->sqliteCreateCollation('col', function() use ($obj) {});
+
+?>
+===DONE===
+--EXPECT--
+===DONE===