3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = [ 'talk' => [ 'displayname' => 'kesselb' ], //'deck' => [ // 'deadline' => 'asap', //] ]; var_dump(isset($data['deck']['deadline']) ? $data['deck']['deadline'] : 'no deadline'); var_dump($data['deck']['deadline'] ?? 'no deadline');

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.140.0120.01017.51
8.4.130.0110.00919.30
8.4.120.0100.01020.43
8.4.110.0140.00518.73
8.4.100.0150.00518.81
8.4.90.0140.00620.40
8.4.80.0080.00318.57
8.4.70.0100.01218.71
8.4.60.0050.00418.79
8.4.50.0080.00618.47
8.4.40.0100.01317.59
8.4.30.0050.00320.77
8.4.20.0160.00322.41
8.4.10.0090.00019.61
8.3.270.0120.00616.55
8.3.260.0110.00916.64
8.3.250.0120.00717.20
8.3.240.0110.00918.24
8.3.230.0130.00716.61
8.3.220.0060.00619.00
8.3.210.0040.00316.64
8.3.200.0040.00516.49
8.3.190.0040.00417.15
8.3.180.0040.00418.79
8.3.170.0070.01118.58
8.3.160.0080.00017.27
8.3.150.0080.01117.11
8.3.140.0070.01120.87
8.3.130.0060.00318.37
8.3.120.0000.00920.84
8.3.110.0080.00020.94
8.3.100.0040.00424.06
8.3.90.0000.00818.59
8.3.80.0090.00019.36
8.3.70.0150.00618.15
8.3.60.0110.01116.75
8.3.50.0120.00723.50
8.3.40.0070.01020.11
8.3.30.0060.00918.59
8.3.20.0080.00024.18
8.3.10.0080.00024.66
8.3.00.0050.00326.16
8.2.290.0120.00720.31
8.2.280.0150.00518.51
8.2.270.0110.00718.41
8.2.260.0070.01016.53
8.2.250.0080.00016.60
8.2.240.0040.00417.00
8.2.230.0110.00422.58
8.2.220.0000.00937.54
8.2.210.0070.00026.77
8.2.200.0070.00318.41
8.2.190.0070.01116.58
8.2.180.0170.00325.92
8.2.170.0090.00618.76
8.2.160.0030.01022.96
8.2.150.0050.00325.66
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0040.00426.35
8.2.110.0090.00021.06
8.2.100.0040.00819.45
8.2.90.0000.00817.75
8.2.80.0000.00818.79
8.2.70.0060.00317.25
8.2.60.0040.00417.62
8.2.50.0000.00818.05
8.2.40.0050.00320.01
8.2.30.0000.00718.06
8.2.20.0040.00417.98
8.2.10.0040.00419.05
8.2.00.0040.00418.99
8.1.330.0080.01022.03
8.1.320.0100.01016.36
8.1.310.0040.01116.15
8.1.300.0110.00720.14
8.1.290.0090.00018.88
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0040.00428.09
8.1.250.0000.00728.09
8.1.240.0070.00318.95
8.1.230.0040.00720.95
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0000.00917.51
8.1.190.0040.00416.88
8.1.180.0030.00618.10
8.1.170.0020.00518.90
8.1.160.0000.00718.75
8.1.150.0040.00418.79
8.1.140.0040.00418.86
8.1.130.0030.00520.12
8.1.120.0040.00417.30
8.1.110.0000.00817.27
8.1.100.0000.00717.40
8.1.90.0040.00417.32
8.1.80.0030.00617.40
8.1.70.0030.00317.40
8.1.60.0030.00517.63
8.1.50.0000.00817.53
8.1.40.0030.00617.57
8.1.30.0050.00317.54
8.1.20.0080.00017.68
8.1.10.0040.00417.59
8.1.00.0060.00317.42
8.0.300.0060.00318.77
8.0.290.0060.00316.75
8.0.280.0030.00318.33
8.0.270.0070.00017.78
8.0.260.0070.00018.36
8.0.250.0030.00316.89
8.0.240.0000.00716.77
8.0.230.0030.00316.90
8.0.220.0000.00716.82
8.0.210.0000.00716.71
8.0.200.0000.00816.78
8.0.190.0000.00716.87
8.0.180.0070.00016.80
8.0.170.0060.00316.87
8.0.160.0000.00816.78
8.0.150.0060.00316.64
8.0.140.0050.00216.78
8.0.130.0060.00013.26
8.0.120.0000.00716.75
8.0.110.0000.00816.84
8.0.100.0040.00416.86
8.0.90.0040.00416.87
8.0.80.0060.01016.72
8.0.70.0000.01016.65
8.0.60.0040.00416.82
8.0.50.0030.00516.81
8.0.30.0070.01817.00
8.0.20.0090.00917.06
8.0.10.0000.00716.80
8.0.00.0150.00916.74
7.4.330.0050.00015.55
7.4.320.0000.00616.55
7.4.300.0000.00716.43
7.4.290.0040.00416.44
7.4.280.0040.00416.50
7.4.270.0000.00716.43
7.4.260.0030.00313.25
7.4.250.0030.00316.49
7.4.240.0080.00016.47
7.4.230.0070.00016.61
7.4.220.0020.00516.62
7.4.210.0080.00916.51
7.4.200.0000.00716.52
7.4.130.0060.01116.47
7.4.120.0150.00416.55
7.4.110.0190.00316.58
7.4.100.0110.00816.38
7.4.90.0090.00816.34
7.4.80.0080.00916.29
7.4.70.0110.01116.25
7.4.60.0100.01016.31
7.4.50.0120.00716.32
7.4.40.0110.00716.28
7.4.30.0100.00916.49
7.4.20.0110.01016.38
7.4.10.0120.00616.28
7.4.00.0130.00516.60
7.3.330.0060.00016.19
7.3.320.0030.00313.06
7.3.310.0070.00016.46
7.3.300.0030.00316.28
7.3.290.0020.01416.30
7.3.260.0110.00716.32
7.3.230.0130.00316.32
7.3.220.0110.00516.17
7.3.210.0130.00616.13
7.3.200.0130.00416.22
7.3.190.0100.00716.41
7.3.180.0090.01216.35
7.3.170.0100.00716.19
7.3.160.0070.01016.25
7.3.150.0090.01016.27
7.3.140.0130.00516.11
7.3.130.0150.00316.17
7.3.120.0130.00516.39
7.3.110.0100.01016.25
7.3.100.0120.00816.42
7.3.90.0130.01116.32
7.3.80.0070.01316.28
7.3.70.0150.00416.24
7.3.60.0150.00616.20
7.3.50.0100.01016.23
7.3.40.0100.00916.24
7.3.30.0050.01316.28
7.3.20.0100.00716.41
7.3.10.0080.00916.17
7.3.00.0080.01216.21
7.2.330.0050.01616.46
7.2.320.0050.01216.51
7.2.310.0100.01316.44
7.2.300.0060.01116.59
7.2.290.0090.00916.48
7.2.280.0100.01016.23
7.2.270.0140.00816.41
7.2.260.0080.01216.30
7.2.250.0080.01016.46
7.2.240.0110.01016.49
7.2.230.0160.01316.30
7.2.220.0080.01216.51
7.2.210.0110.00516.41
7.2.200.0150.00616.37
7.2.190.0080.01016.40
7.2.180.0060.01216.35
7.2.170.0160.00316.37
7.2.160.0110.00816.30
7.2.150.0120.00816.62
7.2.140.0050.01516.45
7.2.130.0120.00916.46
7.2.120.0230.01116.39
7.2.110.0310.00416.38
7.2.100.0100.01016.45
7.2.90.0080.01216.33
7.2.80.0080.01316.41
7.2.70.0100.01016.42
7.2.60.0090.01116.62
7.2.50.0130.00816.53
7.2.40.0080.01416.43
7.2.30.0160.00816.51
7.2.20.0160.00816.49
7.2.10.0140.00716.42
7.2.00.0150.00716.44

preferences:
153.94 ms | 403 KiB | 5 Q