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<?php $arr = array( 'foo' => false, 'bar' => '', 'baz' => null, 'olo' => 0, ); var_dump( isset($arr['foo']), isset($arr['bar']), isset($arr['baz']), isset($arr['olo']), );
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) bool(false) bool(true)

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