3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data=array('data'=>array('something')); echo "Good\n"; var_dump(isset($data['data'][0])); var_dump($data['data'][0]); echo "\nBad\n"; var_dump(isset($data['data'][0]['data'])); var_dump(@$data['data'][0]['data']); echo "\nUgly\n"; var_dump(isset($data['data'][0]['data'][0])); var_dump(@$data['data'][0]['data'][0]); echo "\nTrick or treat\n"; var_dump(isset($data['data'][0]['2data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0])); var_dump(@$data['data'][0]['2data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]); var_dump(isset($data['data'][0]['2data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'])); var_dump(@$data['data'][0]['2data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data']);

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)
8.3.60.0120.00916.63
8.3.50.0160.00316.21
8.3.40.0120.00318.84
8.3.30.0090.00618.84
8.3.20.0080.00018.73
8.3.10.0050.00320.48
8.3.00.0070.00317.63
8.2.180.0090.00616.60
8.2.170.0170.00022.96
8.2.160.0160.00022.09
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0030.00519.36
8.2.110.0100.00020.97
8.2.100.0040.00818.16
8.2.90.0060.00319.17
8.2.80.0000.00818.03
8.2.70.0080.00017.75
8.2.60.0000.00818.16
8.2.50.0080.00018.22
8.2.40.0030.00620.64
8.2.30.0060.00319.27
8.2.20.0080.00017.86
8.2.10.0030.00517.78
8.2.00.0070.00017.86
8.1.280.0070.00725.92
8.1.270.0060.00323.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00322.69
8.1.230.0030.00919.20
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0040.00417.48
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0030.00618.65
8.1.160.0000.00718.83
8.1.150.0040.00422.06
8.1.140.0000.01017.46
8.1.130.0000.00717.80
8.1.120.0020.00517.61
8.1.110.0070.00017.55
8.1.100.0000.00717.57
8.1.90.0040.00417.42
8.1.80.0000.00717.61
8.1.70.0040.00417.45
8.1.60.0080.00017.66
8.1.50.0000.00717.57
8.1.40.0000.00817.48
8.1.30.0050.00517.70
8.1.20.0000.00817.70
8.1.10.0000.00817.63
8.1.00.0000.00817.47
8.0.300.0030.00518.77
8.0.290.0040.00416.88
8.0.280.0070.00018.52
8.0.270.0030.00317.25
8.0.260.0000.00716.87
8.0.250.0040.00417.12
8.0.240.0030.00617.16
8.0.230.0040.00416.98
8.0.220.0070.00017.04
8.0.210.0000.00716.88
8.0.200.0060.00017.14
8.0.190.0000.00816.98
8.0.180.0000.00717.05
8.0.170.0080.00017.07
8.0.160.0000.00917.03
8.0.150.0000.00816.86
8.0.140.0000.01117.02
8.0.130.0050.00013.55
8.0.120.0000.00716.88
8.0.110.0000.00817.04
8.0.100.0050.00216.89
8.0.90.0000.00716.90
8.0.80.0100.01017.09
8.0.70.0000.00716.96
8.0.60.0000.00716.94
8.0.50.0040.00416.91
8.0.30.0110.01017.21
8.0.20.0130.00817.03
8.0.10.0030.00517.14
8.0.00.0120.00516.86
7.4.330.0000.00513.05
7.4.320.0070.00016.54
7.4.300.0030.00316.53
7.4.290.0070.00016.54
7.4.280.0000.00816.67
7.4.270.0070.00016.45
7.4.260.0000.00613.37
7.4.250.0040.00716.60
7.4.240.0000.00716.67
7.4.230.0050.00216.77
7.4.220.0100.01016.77
7.4.210.0080.00716.71
7.4.200.0030.00316.70
7.4.190.0070.00016.73
7.4.160.0080.00816.59
7.4.150.0120.01216.43
7.4.140.0130.00616.59
7.4.130.0110.00616.61
7.4.120.0030.01316.59
7.4.110.0110.00716.49
7.4.100.0100.00716.60
7.4.90.0120.00616.67
7.4.80.0090.01016.56
7.4.70.0160.00616.39
7.4.60.0070.01016.61
7.4.50.0030.00616.51
7.4.40.0070.01116.63
7.4.30.0030.01916.54
7.4.00.0060.00915.00
7.3.330.0030.00313.23
7.3.320.0070.00013.18
7.3.310.0040.00416.24
7.3.300.0070.00016.42
7.3.290.0070.00716.42
7.3.280.0120.00516.54
7.3.270.0080.00816.54
7.3.260.0070.01416.43
7.3.250.0130.00816.41
7.3.240.0130.00716.28
7.3.230.0160.00716.48
7.3.210.0030.01616.62
7.3.200.0060.01219.39
7.3.190.0130.01616.61
7.3.180.0060.00916.44
7.3.170.0070.00716.34
7.3.160.0100.01016.53
7.3.120.0070.00714.63
7.2.330.0140.00416.71
7.2.320.0170.00016.41
7.2.310.0000.02516.73
7.2.300.0140.00316.26
7.2.290.0030.01316.77
7.2.60.0090.00616.93
7.2.00.0060.00919.45
7.1.200.0110.00415.90
7.1.100.0060.01018.11
7.1.70.0030.00716.76
7.1.60.0100.01419.40
7.1.50.0110.01116.78
7.1.00.0000.06722.51
7.0.200.0000.00916.77
7.0.140.0000.07322.09
7.0.120.0030.05322.15
7.0.60.0030.09020.07
7.0.50.0070.04717.88
7.0.40.0100.06720.36
7.0.30.0330.07720.21
7.0.20.0300.03720.20
7.0.10.0270.08320.16
7.0.00.0030.05720.01
5.6.280.0000.07721.00
5.6.210.0100.07720.66
5.6.200.0030.04018.10
5.6.190.0070.04020.57
5.6.180.0530.07320.57
5.6.170.0330.08020.33
5.6.160.0030.04320.52
5.6.150.0100.07718.18
5.6.140.0030.04318.09
5.6.130.0070.08718.20
5.6.120.0100.07321.06
5.6.110.0070.05720.89
5.6.100.0000.09321.06
5.6.90.0070.06021.11
5.6.80.0030.08020.43
5.6.70.3970.03720.38
5.5.350.0330.07320.42
5.5.340.0000.04317.93
5.5.330.0070.08020.23
5.5.320.0370.06720.44
5.5.310.0270.08020.21
5.5.300.0070.04017.98
5.5.290.0200.04317.91
5.5.280.0000.04320.91
5.5.270.0100.08720.88
5.5.260.0030.06320.66
5.5.250.0070.07720.70
5.5.240.0030.04720.05
5.4.450.0030.04019.50
5.4.440.0000.06719.46
5.4.430.0030.04019.41
5.4.420.0100.03719.49
5.4.410.0030.03719.28
5.4.400.0100.03019.10
5.4.390.0030.04018.82
5.4.380.0000.04319.14
5.4.370.0000.04018.79
5.4.360.0000.04019.12
5.4.350.0030.03719.18
5.4.340.0030.03718.92
5.4.320.0200.05019.08
5.4.310.0030.06018.92
5.4.300.0030.07319.07
5.4.290.0070.03718.81
5.4.280.0030.07019.18
5.4.270.0000.05019.08
5.4.260.0070.06018.78
5.4.250.0130.06718.80
5.4.240.0030.07719.09
5.4.230.0030.07719.11
5.4.220.0170.05719.07
5.4.210.0030.07319.15
5.4.200.0100.07318.79
5.4.190.0030.07719.11
5.4.180.0000.07719.07
5.4.170.0100.08019.14
5.4.160.0030.08318.77
5.4.150.0130.07019.09
5.4.140.0130.07316.50
5.4.130.0100.06716.24
5.4.120.0070.05716.21
5.4.110.0070.04716.30
5.4.100.0070.06716.41
5.4.90.0070.03716.24
5.4.80.0030.07016.21
5.4.70.0030.04016.29
5.4.60.0070.07016.38
5.4.50.0070.07316.15
5.4.40.0070.06716.21
5.4.30.0070.04316.29
5.4.20.0030.04016.34
5.4.10.0070.04316.30
5.4.00.0100.06715.70
5.3.290.0130.03314.66
5.3.280.0070.07014.62
5.3.270.0000.08714.54
5.3.260.0100.07314.44
5.3.250.0030.03714.54
5.3.240.0030.06714.44
5.3.230.0100.07014.53
5.3.220.0100.07314.53
5.3.210.0070.07014.60
5.3.200.0070.07314.51
5.3.190.0070.04314.53
5.3.180.0030.05714.50
5.3.170.0070.08014.46
5.3.160.0030.07314.61
5.3.150.0070.06014.51
5.3.140.0130.06714.39
5.3.130.0130.06714.54
5.3.120.0030.05014.53
5.3.110.0130.07314.46
5.3.100.0030.03714.02
5.3.90.0130.03014.00
5.3.80.0100.06713.88
5.3.70.0070.05013.86
5.3.60.0130.05314.13
5.3.50.0000.04313.91
5.3.40.0030.03713.91
5.3.30.0000.08013.77
5.3.20.0070.05313.66
5.3.10.0030.07713.61
5.3.00.0100.05713.48
5.2.170.0000.03311.02
5.2.160.0070.06311.09
5.2.150.0000.04311.06
5.2.140.0070.03011.16
5.2.130.0030.03011.12
5.2.120.0000.06011.15
5.2.110.0000.03011.27
5.2.100.0000.06011.05
5.2.90.0100.05311.20
5.2.80.0070.02711.05
5.2.70.0000.03311.08
5.2.60.0030.03711.24
5.2.50.0070.03711.19
5.2.40.0070.02711.00
5.2.30.0100.05711.07
5.2.20.0000.03310.91
5.2.10.0070.04710.87
5.2.00.0000.04710.62
5.1.60.0000.02710.02
5.1.50.0070.0309.98
5.1.40.0030.0239.90
5.1.30.0000.02710.31
5.1.20.0130.02010.36
5.1.10.0030.02710.13
5.1.00.0070.05010.09
5.0.50.0000.0278.55
5.0.40.0000.0408.44
5.0.30.0000.0338.41
5.0.20.0030.0408.41
5.0.10.0000.0208.41
5.0.00.0000.0308.41
4.4.90.0000.0208.41
4.4.80.0030.0208.41
4.4.70.0030.0278.41
4.4.60.0000.0178.41
4.4.50.0030.0138.41
4.4.40.0030.0478.41
4.4.30.0000.0178.41
4.4.20.0000.0408.41
4.4.10.0000.0178.41
4.4.00.0000.0438.41
4.3.110.0000.0278.41
4.3.100.0030.0338.41
4.3.90.0000.0208.41
4.3.80.0000.0338.41
4.3.70.0030.0208.41
4.3.60.0070.0238.41
4.3.50.0030.0138.41
4.3.40.0070.0338.41
4.3.30.0000.0238.41
4.3.20.0000.0178.41
4.3.10.0000.0208.41
4.3.00.0000.0278.41

preferences:
51.78 ms | 401 KiB | 5 Q