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<hr />
$a: 'test187_a'<br />
$caller.self.a: 'MAIN_a'<br />
$caller.CLASS_NAME: 'MAIN'<br />
$caller.self.CLASS_NAME: 'MAIN'<br />
<hr />
$a: 'test187_a'<br />
$caller.self.a: 'test187_a'<br />
$caller.CLASS_NAME: 'MAIN'<br />
$caller.self.CLASS_NAME: 'MAIN'<br />