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<?php testme(); function testme() { $data='b=2'; parse_str($data); if(isset($b)) { echo 'isset b='.$b,"\n"; } else { echo 'notset b='.$b,"\n"; } if(isset($b)) { echo 'isset b='.$b,"\n"; } else { echo 'no b='.$b,"\n"; } }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
isset b=2 isset b=2