3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo key((array)(object)null);

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)
8.3.40.0090.00918.72
8.3.30.0150.00018.46
8.3.20.0040.00418.52
8.3.10.0040.00418.51
8.3.00.0030.00619.26
8.2.170.0110.00422.96
8.2.160.0120.00418.82
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0070.00420.78
8.2.110.0100.00020.56
8.2.100.0090.00317.91
8.2.90.0060.00318.22
8.2.80.0080.00017.97
8.2.70.0030.00617.63
8.2.60.0040.00417.63
8.2.50.0040.00417.63
8.2.40.0030.00617.63
8.2.30.0060.00317.68
8.2.20.0030.00617.51
8.2.10.0020.00517.52
8.2.00.0040.00417.61
8.1.270.0070.00023.99
8.1.260.0000.00726.35
8.1.250.0050.00328.09
8.1.240.0040.00422.20
8.1.230.0060.00620.97
8.1.220.0040.00417.74
8.1.210.0030.00518.91
8.1.200.0050.00317.29
8.1.190.0000.01117.00
8.1.180.0040.00418.10
8.1.170.0050.00319.13
8.1.160.0090.00018.39
8.1.150.0000.00718.56
8.1.140.0000.00817.39
8.1.130.0000.00717.25
8.1.120.0030.00317.30
8.1.110.0040.00417.21
8.1.100.0030.00417.33
8.1.90.0000.00717.35
8.1.80.0000.00817.35
8.1.70.0030.00317.30
8.1.60.0070.00317.50
8.1.50.0040.00417.43
8.1.40.0000.00917.46
8.1.30.0030.00617.47
8.1.20.0000.00717.57
8.1.10.0040.00417.46
8.1.00.0000.00917.34
8.0.300.0000.00720.21
8.0.290.0000.00716.63
8.0.280.0000.00717.99
8.0.270.0070.00017.19
8.0.260.0000.00616.76
8.0.250.0040.00416.93
8.0.240.0030.00316.89
8.0.230.0050.00316.83
8.0.220.0030.00316.71
8.0.210.0030.00316.72
8.0.200.0060.00016.89
8.0.190.0070.00016.83
8.0.180.0030.00716.72
8.0.170.0040.00416.73
8.0.160.0030.00516.83
8.0.150.0040.00416.82
8.0.140.0050.00516.73
8.0.130.0050.00013.20
8.0.120.0000.00816.78
8.0.110.0000.00816.70
8.0.100.0000.00716.86
8.0.90.0000.00716.64
8.0.80.0120.00316.76
8.0.70.0000.00716.69
8.0.60.0000.00916.79
8.0.50.0000.00916.69
8.0.30.0130.00417.14
8.0.20.0140.00716.97
8.0.10.0050.00216.93
8.0.00.0080.00816.75
7.4.330.0040.00012.89
7.4.320.0000.00616.42
7.4.300.0000.00616.57
7.4.290.0000.00716.49
7.4.280.0000.00716.56
7.4.270.0030.00316.35
7.4.260.0030.00313.30
7.4.250.0000.00716.42
7.4.240.0030.00316.33
7.4.230.0000.00916.54
7.4.220.0110.01416.48
7.4.210.0070.00716.37
7.4.200.0030.00516.34
7.4.190.0070.00016.39
7.4.160.0040.01116.30
7.4.150.0040.01516.40
7.4.140.0100.00716.62
7.4.130.0030.01216.45
7.4.120.0100.00716.26
7.4.110.0070.01616.60
7.4.100.0090.00916.39
7.4.90.0060.01216.49
7.4.80.0060.01416.45
7.4.70.0100.00616.21
7.4.60.0130.00716.54
7.4.50.0030.00316.42
7.4.40.0070.01116.55
7.4.30.0180.00316.32
7.4.10.0060.01215.15
7.4.00.0070.00914.79
7.3.330.0060.00013.18
7.3.320.0040.00412.96
7.3.310.0030.00316.32
7.3.300.0030.00316.20
7.3.290.0110.00716.23
7.3.280.0080.00816.21
7.3.270.0060.01016.25
7.3.260.0050.01116.34
7.3.250.0100.00716.52
7.3.240.0070.01016.53
7.3.230.0120.00616.47
7.3.210.0130.00916.41
7.3.200.0100.01016.31
7.3.190.0070.01516.26
7.3.180.0100.01016.18
7.3.170.0100.00616.24
7.3.160.0080.01516.37
7.3.130.0030.01415.06
7.3.120.0070.00714.62
7.3.110.0160.00314.62
7.3.100.0040.00814.72
7.3.90.0060.00914.65
7.3.80.0060.00614.98
7.3.70.0030.00614.90
7.3.60.0040.00714.59
7.3.50.0030.00914.80
7.3.40.0000.01014.69
7.3.30.0080.00414.59
7.3.20.0050.00516.73
7.3.10.0070.00516.42
7.3.00.0070.01016.45
7.2.330.0090.01216.45
7.2.320.0100.00616.21
7.2.310.0110.01116.59
7.2.300.0100.00716.43
7.2.290.0110.00816.57
7.2.260.0060.01314.92
7.2.250.0070.01114.68
7.2.240.0040.01214.66
7.2.230.0090.00614.81
7.2.220.0000.00914.95
7.2.210.0000.01314.81
7.2.200.0100.00314.77
7.2.190.0040.00514.58
7.2.180.0060.00814.97
7.2.170.0110.00014.79
7.2.160.0040.00415.07
7.2.150.0000.00916.58
7.2.140.0140.00016.48
7.2.130.0080.00716.42
7.2.120.0100.00516.51
7.2.110.0100.00316.53
7.2.100.0080.00616.59
7.2.90.0060.00816.42
7.2.80.0070.00716.59
7.2.70.0130.00316.60
7.2.60.0100.00616.34
7.2.50.0070.00916.43
7.2.40.0100.00616.58
7.2.30.0050.00916.51
7.2.20.0110.00716.31
7.2.10.0120.00916.41
7.2.00.0080.01116.70
7.1.330.0080.00815.60
7.1.320.0120.00415.77
7.1.310.0070.00415.70
7.1.300.0030.01015.86
7.1.290.0030.00615.42
7.1.280.0100.00315.67
7.1.270.0040.00815.61
7.1.260.0060.00615.72
7.1.250.0070.00715.41
7.1.240.0040.01215.82
7.1.230.0030.01015.54
7.1.220.0080.00415.86
7.1.210.0000.01415.53
7.1.200.0070.00715.75
7.1.190.0000.01015.64
7.1.180.0070.00315.54
7.1.170.0060.00615.78
7.1.160.0040.00715.85
7.1.150.0030.00715.55
7.1.140.0060.00915.36
7.1.130.0030.00915.70
7.1.120.0130.00315.64
7.1.110.0060.00915.89
7.1.100.0080.00616.92
7.1.90.0070.00715.82
7.1.80.0060.00315.78
7.1.70.0040.00516.46
7.1.60.0090.00717.50
7.1.50.0040.01216.26
7.1.40.0100.00315.64
7.1.30.0060.00915.44
7.1.20.0090.00615.64
7.1.10.0000.01315.79
7.1.00.0100.03719.08
7.0.330.0100.00315.17
7.0.320.0030.01015.52
7.0.310.0080.00415.12
7.0.300.0000.01115.29
7.0.290.0040.00415.14
7.0.280.0060.00615.30
7.0.270.0030.00615.07
7.0.260.0100.00315.54
7.0.250.0080.00315.48
7.0.240.0040.01115.49
7.0.230.0070.00715.09
7.0.220.0070.00415.46
7.0.210.0050.00315.36
7.0.200.0020.00616.17
7.0.190.0030.00615.32
7.0.180.0090.00915.38
7.0.170.0100.00715.45
7.0.160.0080.00615.52
7.0.150.0040.01115.32
7.0.140.0030.04218.71
7.0.130.0030.01315.44
7.0.120.0020.03618.82
7.0.110.0030.00615.40
7.0.100.0060.00815.40
7.0.90.0120.00015.30
7.0.80.0120.00315.47
7.0.70.0060.00615.45
7.0.60.0040.02317.74
7.0.50.0070.04416.66
7.0.40.0110.04316.62
7.0.30.0190.03416.87
7.0.20.0150.04016.75
7.0.10.0080.02216.85
7.0.00.0020.05116.70
5.6.400.0100.00314.28
5.6.390.0090.00314.55
5.6.380.0030.00913.93
5.6.370.0060.00613.99
5.6.360.0030.01014.16
5.6.350.0030.00614.44
5.6.340.0060.00914.35
5.6.330.0000.00914.53
5.6.320.0000.01014.27
5.6.310.0070.00713.78
5.6.300.0080.00013.96
5.6.290.0000.01414.34
5.6.280.0080.03917.63
5.6.270.0110.00014.05
5.6.260.0030.01014.16
5.6.250.0030.00614.24
5.6.240.0090.00014.26
5.6.230.0030.01014.18
5.6.220.0000.01514.20
5.6.210.0070.04317.28
5.6.200.0070.04416.20
5.6.190.0030.03517.29
5.6.180.0300.03717.22
5.6.170.0080.03317.36
5.6.160.0060.03617.17
5.6.150.0050.04816.24
5.6.140.0090.02816.21
5.6.130.0070.02716.09
5.6.120.0080.02517.57
5.6.110.0050.04717.59
5.6.100.0030.02517.59
5.6.90.0100.03317.52
5.6.80.0050.04617.30
5.6.70.0070.00713.82
5.6.60.0060.00614.14
5.6.50.0070.00414.12
5.6.40.0090.00614.26
5.6.30.0070.00714.14
5.6.20.0000.01614.05
5.6.10.0070.00714.42
5.6.00.0120.00314.43
5.5.380.0120.00413.80
5.5.370.0070.01014.27
5.5.360.0030.01314.18
5.5.350.0090.04217.29
5.5.340.0050.04215.99
5.5.330.0050.02517.02
5.5.320.0340.02817.22
5.5.310.0130.02417.04
5.5.300.0100.04215.89
5.5.290.0070.04516.16
5.5.280.0070.02217.53
5.5.270.0010.04817.57
5.5.260.0070.04717.67
5.5.250.0030.03317.21
5.5.240.0070.01816.88
5.5.230.0060.00614.04
5.5.220.0110.00713.88
5.5.210.0000.01314.15
5.5.200.0070.00314.10
5.5.190.0070.00714.03
5.5.180.0060.00314.10
5.5.170.0090.00613.63
5.5.160.0030.00613.99
5.5.150.0070.00713.95
5.5.140.0080.00414.14
5.5.130.0030.01013.92
5.5.120.0060.00913.93
5.5.110.0040.01113.91
5.5.100.0040.00714.01
5.5.90.0080.00013.99
5.5.80.0090.00314.03
5.5.70.0070.00313.91
5.5.60.0040.00714.24
5.5.50.0030.00814.17
5.5.40.0090.00614.11
5.5.30.0000.01013.90
5.5.20.0000.00913.86
5.5.10.0090.00614.08
5.5.00.0070.00414.10
5.4.450.0080.03715.83
5.4.440.0020.03515.83
5.4.430.0070.03315.89
5.4.420.0030.03815.87
5.4.410.0100.03015.85
5.4.400.0070.02815.74
5.4.390.0020.03215.75
5.4.380.0030.03115.75
5.4.370.0020.03815.71
5.4.360.0070.02515.67
5.4.350.0130.03515.72
5.4.340.0020.03915.75
5.4.330.0060.00612.33
5.4.320.0080.03815.73
5.4.310.0080.02515.74
5.4.300.0040.03915.73
5.4.290.0070.03015.74
5.4.280.0100.02015.56
5.4.270.0030.04415.57
5.4.260.0020.02715.55
5.4.250.0070.03715.55
5.4.240.0120.03315.56
5.4.230.0030.04215.66
5.4.220.0110.03515.72
5.4.210.0050.04315.75
5.4.200.0020.04515.73
5.4.190.0030.04315.62
5.4.180.0140.03215.75
5.4.170.0050.04615.73
5.4.160.0030.03915.74
5.4.150.0030.03515.73
5.4.140.0070.02514.27
5.4.130.0070.02214.24
5.4.120.0090.03814.29
5.4.110.0080.03014.47
5.4.100.0060.04014.24
5.4.90.0030.02014.37
5.4.80.0070.02714.27
5.4.70.0040.03614.28
5.4.60.0020.02214.33
5.4.50.0050.02814.28
5.4.40.0040.03214.45
5.4.30.0030.02214.25
5.4.20.0050.02114.27
5.4.10.0030.03614.27
5.4.00.0030.03814.03
5.3.290.0050.03813.47
5.3.280.0030.04113.42
5.3.270.0070.03313.40
5.3.260.0030.02713.36
5.3.250.0030.04113.41
5.3.240.0080.03713.37
5.3.230.0080.03813.43
5.3.220.0060.04013.42
5.3.210.0020.03013.41
5.3.200.0050.02513.43
5.3.190.0030.02113.42
5.3.180.0100.03713.39
5.3.170.0080.04013.40
5.3.160.0080.01813.41
5.3.150.0020.03813.41
5.3.140.0050.02813.45
5.3.130.0070.02313.49
5.3.120.0070.04013.42
5.3.110.0030.03013.44
5.3.100.0100.03313.14
5.3.90.0080.02813.14
5.3.80.0080.03513.12
5.3.70.0030.03513.21
5.3.60.0070.04013.17
5.3.50.0060.03113.10
5.3.40.0050.02913.10
5.3.30.0050.02313.08
5.3.20.0060.02312.90
5.3.10.0000.02812.97
5.3.00.0050.02012.89
5.2.170.0030.06311.12
5.2.160.0030.03011.21
5.2.150.0070.04011.07
5.2.140.0100.03311.02
5.2.130.0000.04311.03
5.2.120.0000.04010.95
5.2.110.0070.06010.95
5.2.100.0030.03011.08
5.2.90.0070.04011.03
5.2.80.0070.06011.03
5.2.70.0030.06310.97
5.2.60.0070.06010.94
5.2.50.0070.02710.90
5.2.40.0100.05310.98
5.2.30.0000.04010.89
5.2.20.0000.06010.89
5.2.10.0130.05010.86
5.2.00.0130.03010.70
5.1.60.0030.03310.13
5.1.50.0030.03010.00
5.1.40.0070.0509.97
5.1.30.0070.05710.41
5.1.20.0070.04310.38
5.1.10.0070.04310.09
5.1.00.0000.03310.05
5.0.50.0070.0308.52
5.0.40.0070.0408.48
5.0.30.0030.0608.30
5.0.20.0030.0308.27
5.0.10.0030.0408.27
5.0.00.0030.0338.30
4.4.90.0000.0278.27
4.4.80.0000.0208.27
4.4.70.0030.0178.27
4.4.60.0000.0278.27
4.4.50.0030.0278.27
4.4.40.0000.0538.27
4.4.30.0030.0208.27
4.4.20.0000.0238.27
4.4.10.0070.0338.27
4.4.00.0030.0278.27
4.3.110.0000.0238.27
4.3.100.0100.0278.27
4.3.90.0030.0338.27
4.3.80.0000.0278.27
4.3.70.0030.0208.27
4.3.60.0070.0338.27
4.3.50.0070.0308.27
4.3.40.0000.0538.27
4.3.30.0030.0378.27
4.3.20.0000.0308.27
4.3.10.0000.0378.27
4.3.00.0030.0338.27

preferences:
56.16 ms | 400 KiB | 5 Q