3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(string $a = null) { return $a; } foo();

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)
8.3.60.0070.01118.55
8.3.50.0100.00316.37
8.3.40.0090.00618.53
8.3.30.0070.00718.64
8.3.20.0050.00220.20
8.3.10.0080.00021.77
8.3.00.0070.00020.94
8.2.180.0080.00618.13
8.2.170.0090.00622.96
8.2.160.0100.01022.07
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0030.00322.09
8.2.120.0080.00026.35
8.2.110.0030.00720.57
8.2.100.0040.00817.78
8.2.90.0000.00818.97
8.2.80.0000.00917.97
8.2.70.0080.00017.25
8.2.60.0030.00617.68
8.2.50.0060.00318.10
8.2.40.0040.00420.59
8.2.30.0060.00320.78
8.2.20.0080.00017.83
8.2.10.0000.00717.80
8.2.00.0000.00717.95
8.1.280.0090.00925.92
8.1.270.0070.00022.19
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00321.99
8.1.230.0030.00819.21
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0090.00017.22
8.1.190.0030.00617.22
8.1.180.0060.00318.10
8.1.170.0000.00818.52
8.1.160.0070.00018.85
8.1.150.0080.00020.55
8.1.140.0050.00219.43
8.1.130.0030.00318.77
8.1.120.0000.00717.26
8.1.110.0000.00817.22
8.1.100.0030.00617.30
8.1.90.0000.00717.26
8.1.80.0000.00717.22
8.1.70.0040.00417.35
8.1.60.0050.00317.50
8.1.50.0000.00817.31
8.1.40.0040.00417.48
8.1.30.0040.00417.53
8.1.20.0060.00317.42
8.1.10.0000.00817.26
8.1.00.0040.00417.20
8.0.300.0030.00518.77
8.0.290.0040.00416.63
8.0.280.0000.00718.30
8.0.270.0000.00717.18
8.0.260.0030.00316.68
8.0.250.0000.00716.79
8.0.240.0040.00416.70
8.0.230.0030.00316.71
8.0.220.0000.00716.59
8.0.210.0000.00716.73
8.0.200.0030.00316.78
8.0.190.0080.00016.72
8.0.180.0040.00416.66
8.0.170.0000.00716.68
8.0.160.0070.00016.75
8.0.150.0040.00416.73
8.0.140.0030.00316.75
8.0.130.0050.00013.18
8.0.120.0060.00316.63
8.0.110.0000.00716.78
8.0.100.0050.00216.64
8.0.90.0070.00016.84
8.0.80.0100.00616.76
8.0.70.0020.00516.59
8.0.60.0000.00716.80
8.0.50.0040.00416.71
8.0.30.0090.00917.13
8.0.20.0120.00717.40
8.0.10.0070.00016.76
8.0.00.0090.00816.91
7.4.330.0000.00515.55
7.4.320.0000.00616.46
7.4.300.0000.00716.50
7.4.290.0030.00316.45
7.4.280.0000.00816.51
7.4.270.0000.00716.42
7.4.260.0030.00313.14
7.4.250.0000.00716.30
7.4.240.0030.00516.49
7.4.230.0070.00016.63
7.4.220.0120.00616.44
7.4.210.0030.01016.47
7.4.200.0000.00716.60
7.4.160.0120.00316.36
7.4.150.0110.00717.40
7.4.140.0100.01217.86
7.4.130.0090.00916.34
7.4.120.0110.00616.33
7.4.110.0110.00916.29
7.4.100.0080.01116.59
7.4.90.0090.00916.43
7.4.80.0110.00519.39
7.4.70.0120.00416.46
7.4.60.0060.01016.29
7.4.50.0070.00716.63
7.4.40.0110.00616.49
7.4.30.0090.00816.62
7.4.00.0100.00714.97
7.3.330.0000.00513.09
7.3.320.0030.00213.23
7.3.310.0030.00316.09
7.3.300.0070.00016.14
7.3.290.0070.00716.23
7.3.280.0080.00816.21
7.3.270.0100.00717.40
7.3.260.0100.00616.19
7.3.250.0110.00916.35
7.3.240.0120.00516.31
7.3.230.0060.01216.36
7.3.210.0140.00416.31
7.3.200.0070.01116.27
7.3.190.0070.01016.24
7.3.180.0110.00516.39
7.3.170.0030.01316.23
7.3.160.0030.01616.42
7.3.120.0180.00014.75
7.3.110.0110.00714.64
7.3.100.0100.01014.74
7.3.90.0120.00314.98
7.3.80.0030.00614.70
7.3.70.0100.00714.82
7.3.60.0000.01314.51
7.3.50.0080.00314.80
7.3.40.0100.00714.62
7.3.30.0110.00014.64
7.3.20.0030.01516.44
7.3.10.0110.00416.66
7.3.00.0040.00816.65
7.2.330.0140.00516.52
7.2.320.0160.00616.22
7.2.310.0100.00716.33
7.2.300.0100.00716.17
7.2.290.0040.01416.55
7.2.250.0060.00914.77
7.2.240.0030.01514.72
7.2.230.0030.01014.71
7.2.220.0100.00614.89
7.2.210.0050.00814.91
7.2.200.0070.00714.88
7.2.190.0060.00914.76
7.2.180.0110.00414.85
7.2.170.0070.00714.95
7.2.160.0060.00914.68
7.2.150.0070.00716.83
7.2.140.0000.01416.79
7.2.130.0110.00416.34
7.2.120.0060.01016.82
7.2.110.0030.00616.70
7.2.100.0130.00316.71
7.2.90.0470.00715.60
7.2.80.0430.00815.60
7.2.70.0410.00815.59
7.2.60.0450.01115.64
7.2.50.0440.00615.51
7.2.40.0420.00815.57
7.2.30.0450.01215.58
7.2.20.0430.00815.60
7.2.10.0570.00815.75
7.2.00.0530.00515.79
7.1.330.0070.01015.80
7.1.320.0030.01015.55
7.1.310.0120.00015.44
7.1.300.0130.00015.65
7.1.290.0110.00015.48
7.1.280.0030.01015.64
7.1.270.0070.01015.71
7.1.260.0030.01015.71
7.1.250.0040.01115.74
7.1.240.0030.01015.49
7.1.230.0070.00715.54
7.1.220.0070.00715.66
7.1.210.0460.00714.56
7.1.200.0440.00514.30
7.1.190.0400.00514.39
7.1.180.0470.00314.50
7.1.170.0400.00614.59
7.1.160.0490.00614.47
7.1.150.0390.00914.60
7.1.140.0560.00414.65
7.1.130.0480.00614.51
7.1.120.0460.00914.58
7.1.110.0460.01014.62
7.1.100.0480.00914.60
7.1.90.0800.00614.54
7.1.80.0800.00514.37
7.1.70.0750.00814.53
7.1.60.0900.00523.55
7.1.50.0810.00923.62
7.1.40.0720.00923.75
7.1.30.0680.01123.23
7.1.20.0610.00823.49
7.1.10.0630.00314.35
7.1.00.0470.00614.73
7.0.330.0060.00615.36
7.0.320.0080.00015.25
7.0.310.0380.00614.13
7.0.300.0510.00614.30
7.0.290.0460.00514.35
7.0.280.0520.00714.20
7.0.270.0550.00214.17
7.0.260.0540.00614.21
7.0.250.0490.00614.42
7.0.240.0500.00514.37
7.0.230.0910.00814.33
7.0.220.0840.00914.49
7.0.210.0630.01014.37
7.0.200.0640.00714.30
7.0.190.0690.00414.50
7.0.180.0870.00814.53
7.0.170.0570.00914.29
7.0.160.0530.00714.09
7.0.150.0550.00514.31
7.0.140.0510.00714.45
7.0.130.0500.00414.26
7.0.120.0510.00614.29
7.0.110.0670.00514.41
7.0.100.0520.00514.22
7.0.90.0570.00414.31
7.0.80.0680.00714.30
7.0.70.0480.00614.33
7.0.60.0470.00514.45
7.0.50.0440.00814.45
7.0.40.0450.00713.32
7.0.30.0450.00613.26
7.0.20.0440.00413.50
7.0.10.0530.00313.29
7.0.00.0460.01013.41
5.6.400.0060.00914.13
5.6.390.0030.01014.24
5.6.380.0070.00714.33
5.6.370.0050.00514.00
5.6.360.0060.00314.12
5.6.350.0090.00313.99
5.6.340.0030.00614.14
5.6.330.0040.00814.20
5.6.320.0060.00614.00
5.6.310.0000.00814.16
5.6.300.0060.00614.09
5.6.290.0040.01114.15
5.6.280.0030.01014.27
5.6.270.0030.00614.35
5.6.260.0030.01014.00
5.6.250.0040.01114.03
5.6.240.0040.00714.32
5.6.230.0000.01314.18
5.6.220.0070.00714.04
5.6.210.0030.00614.49
5.6.200.0120.00014.24
5.6.190.0000.00914.10
5.6.180.0120.00313.99
5.6.170.0030.00614.01
5.6.160.0060.00613.97
5.6.150.0090.00914.07
5.6.140.0000.01214.08
5.6.130.0060.00614.09
5.6.120.0060.00314.37
5.6.110.0040.00814.05
5.6.100.0030.00713.96
5.6.90.0030.00814.19
5.6.80.0060.00613.70
5.6.70.0030.00513.91
5.6.60.0070.00713.82
5.6.50.0040.00413.80
5.6.40.0030.00914.12
5.6.30.0040.00814.11
5.6.20.0060.00614.04
5.6.10.0070.00413.93
5.6.00.0000.00814.11

preferences:
44.43 ms | 400 KiB | 5 Q