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<?php $data = NULL; ++$data['wok']; var_dump($data); $data = NULL; $data['wok'] = $data['wok'] + 1;
Output for 8.3.0 - 8.3.6
Warning: Undefined array key "wok" in /in/IGYSm on line 2 array(1) { ["wok"]=> int(1) } Warning: Trying to access array offset on null in /in/IGYSm on line 4
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Undefined array key "wok" in /in/IGYSm on line 2 array(1) { ["wok"]=> int(1) } Warning: Trying to access array offset on value of type null in /in/IGYSm on line 4
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined index: wok in /in/IGYSm on line 2 array(1) { ["wok"]=> int(1) } Notice: Trying to access array offset on value of type null in /in/IGYSm on line 4
Output for 7.3.32 - 7.3.33, 7.4.26
array(1) { ["wok"]=> int(1) }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31
Notice: Undefined index: wok in /in/IGYSm on line 2 array(1) { ["wok"]=> int(1) }
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: wok in /in/IGYSm on line 2 array(1) { ["wok"]=> int(1) }

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