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<?php $_SESSION['MAster'] = '4632763278'; unset($_SESSION['MAster']); if($_SESSION['MAster']){ echo 'HELLO'; } if(in_array('MAster',$_SESSION)){ echo 'HELLO'; } if(isset($_SESSION['MAster'])){ echo 'HELLO 2'; } if($_SESSION['MAster']=='4632763278'){ echo 'HELLO 3'; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined array key "MAster" in /in/81A1e on line 5 Warning: Undefined array key "MAster" in /in/81A1e on line 14
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: MAster in /in/81A1e on line 5 Notice: Undefined index: MAster in /in/81A1e on line 14
Output for 7.3.32 - 7.3.33
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: MAster in /in/81A1e on line 5 Notice: Undefined index: MAster in /in/81A1e on line 14

preferences:
234.21 ms | 402 KiB | 323 Q