3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace a; ßsubstr('asdas', 1);

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)
8.3.70.0140.00716.75
8.3.60.0120.00616.75
8.3.50.0100.01017.19
8.3.40.0110.00718.83
8.3.30.0140.00018.69
8.3.20.0070.00019.98
8.3.10.0080.00021.88
8.3.00.0040.01119.69
8.2.190.0130.01016.58
8.2.180.0070.01116.72
8.2.170.0040.01122.96
8.2.160.0120.00319.02
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0000.00719.24
8.2.120.0020.00526.35
8.2.110.0090.00022.26
8.2.100.0040.00717.91
8.2.90.0000.00819.05
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0050.00317.80
8.2.50.0000.00818.10
8.2.40.0080.00022.32
8.2.30.0080.00019.23
8.2.20.0000.00718.12
8.2.10.0070.00017.96
8.2.00.0040.00417.98
8.1.280.0040.01525.92
8.1.270.0040.00423.75
8.1.260.0070.00026.35
8.1.250.0070.00728.09
8.1.240.0080.00024.01
8.1.230.0090.00322.20
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00717.25
8.1.190.0000.00817.23
8.1.180.0030.00518.10
8.1.170.0040.00418.44
8.1.160.0000.00718.98
8.1.150.0040.00418.80
8.1.140.0020.00519.43
8.1.130.0070.00018.72
8.1.120.0000.00717.34
8.1.110.0070.00017.24
8.1.100.0060.00317.22
8.1.90.0040.00417.21
8.1.80.0000.00817.25
8.1.70.0030.00517.29
8.1.60.0040.00417.33
8.1.50.0000.01017.48
8.1.40.0050.00217.44
8.1.30.0030.00617.51
8.1.20.0070.00017.49
8.1.10.0000.00817.51
8.1.00.0070.00017.42
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0070.00018.39
8.0.270.0040.00417.18
8.0.260.0060.00018.68
8.0.250.0000.00716.96
8.0.240.0040.00416.98
8.0.230.0070.00016.95
8.0.220.0000.00616.89
8.0.210.0000.00716.88
8.0.200.0040.00416.93
8.0.190.0030.00616.93
8.0.180.0000.00716.79
8.0.170.0040.00416.79
8.0.160.0000.00716.86
8.0.150.0030.00316.86
8.0.140.0040.00516.83
8.0.130.0000.00713.20
8.0.120.0040.00416.73
8.0.110.0040.00416.68
8.0.100.0000.00716.74
8.0.90.0040.00416.79
8.0.80.0090.00616.85
8.0.70.0050.00316.82
8.0.60.0030.00616.85
8.0.50.0040.00416.68
8.0.30.0090.00816.94
8.0.20.0090.01017.40
8.0.10.0050.00316.76
8.0.00.0120.00616.68
7.4.330.0060.00015.55
7.4.320.0030.00316.45
7.4.300.0030.00316.57
7.4.290.0030.00616.40
7.4.280.0070.00016.35
7.4.270.0040.00416.44
7.4.260.0030.00316.44
7.4.250.0030.00316.38
7.4.240.0030.00316.34
7.4.230.0030.00616.54
7.4.220.0100.00616.48
7.4.210.0100.01016.59
7.4.200.0030.00316.63
7.4.160.0080.00716.38
7.4.150.0110.00717.40
7.4.140.0120.00717.86
7.4.130.0080.01216.50
7.4.120.0130.00616.43
7.4.110.0060.01016.64
7.4.100.0150.00616.59
7.4.90.0100.00716.35
7.4.80.0120.00619.39
7.4.70.0100.00616.60
7.4.60.0080.00816.44
7.4.50.0140.00616.45
7.4.40.0070.01016.32
7.4.30.0160.00016.44
7.4.10.0130.00615.04
7.4.00.0120.00514.89
7.3.330.0020.00212.98
7.3.320.0050.00013.10
7.3.310.0060.00016.08
7.3.300.0030.00316.28
7.3.290.0000.00716.10
7.3.280.0070.01016.26
7.3.270.0060.01317.40
7.3.260.0140.00516.45
7.3.250.0150.00616.38
7.3.240.0090.01016.37
7.3.230.0100.01416.24
7.3.210.0040.01116.36
7.3.200.0070.01016.27
7.3.190.0130.00316.20
7.3.180.0030.01316.37
7.3.170.0030.01216.41
7.3.160.0110.00516.30
7.3.130.0100.00714.63
7.3.120.0080.01014.79
7.3.110.0070.01114.72
7.3.100.0080.00514.66
7.3.90.0050.00714.74
7.3.80.0100.00715.00
7.3.70.0070.00714.67
7.3.60.0080.00614.78
7.3.50.0080.00514.71
7.3.40.0050.00814.79
7.3.30.0030.01114.66
7.3.20.0060.00616.50
7.3.10.0100.00516.37
7.3.00.0090.00816.48
7.2.330.0120.00616.55
7.2.320.0100.00716.62
7.2.310.0040.01416.45
7.2.300.0080.01116.36
7.2.290.0040.01316.65
7.2.260.0050.01014.87
7.2.250.0080.01014.83
7.2.240.0020.01414.80
7.2.230.0090.00614.83
7.2.220.0100.00314.94
7.2.210.0030.01014.64
7.2.200.0030.01114.81
7.2.190.0080.00814.78
7.2.180.0090.00814.78
7.2.170.0040.01014.96
7.2.160.0030.01014.96
7.2.150.0100.00316.61
7.2.140.0110.00016.71
7.2.130.0090.00716.56
7.2.120.0090.00516.75
7.2.110.0090.00516.49
7.2.100.0070.01016.54
7.2.90.0070.01116.53
7.2.80.0070.00716.74
7.2.70.0090.01116.74
7.2.60.0080.00816.66
7.2.50.0090.00916.54
7.2.40.0120.00816.65
7.2.30.0150.00716.54
7.2.20.0020.01316.52
7.2.10.0110.00816.64
7.2.00.0140.00316.77
7.1.330.0080.00515.62
7.1.320.0070.00215.65
7.1.310.0030.01015.77
7.1.300.0040.01015.61
7.1.290.0060.00615.57
7.1.280.0060.00815.54
7.1.270.0030.00615.56
7.1.260.0080.00415.45
7.1.250.0050.01115.21
7.1.240.0000.01315.68
7.1.230.0040.00415.61
7.1.220.0040.00715.34
7.1.210.0070.00715.78
7.1.200.0030.00615.49
7.1.190.0070.00315.58
7.1.180.0100.00715.45
7.1.170.0000.01415.60
7.1.160.0080.00015.42
7.1.150.0090.00315.41
7.1.140.0040.01115.60
7.1.130.0060.00615.58
7.1.120.0090.00915.73
7.1.110.0070.00715.60
7.1.100.0030.00615.66
7.1.90.0030.01015.66
7.1.80.0040.00415.81
7.1.70.0640.00815.38
7.1.60.0250.01524.35
7.1.50.0280.01024.11
7.1.40.0250.01023.95
7.1.30.0300.01224.06
7.1.20.0220.01224.02
7.1.10.0230.00515.13
7.1.00.0310.01114.98
7.0.330.0000.01115.35
7.0.320.0030.00915.31
7.0.310.0030.01014.98
7.0.300.0000.00915.35
7.0.290.0000.01015.07
7.0.280.0030.01015.43
7.0.270.0060.00615.11
7.0.260.0070.00715.14
7.0.250.0030.00515.23
7.0.240.0060.00615.36
7.0.230.0070.00715.11
7.0.220.0060.00615.21
7.0.210.0030.00915.23
7.0.200.0190.01015.21
7.0.190.0250.01014.99
7.0.180.0160.00614.74
7.0.170.0180.00714.59
7.0.160.0150.01114.85
7.0.150.0180.00614.76
7.0.140.0200.00914.80
7.0.130.0130.01415.00
7.0.120.0140.01114.98
7.0.110.0240.00714.73
7.0.100.0250.00414.79
7.0.90.0160.01414.70
7.0.80.0130.01314.74
7.0.70.0240.01014.64
7.0.60.0230.00814.69
7.0.50.0210.01214.86
7.0.40.0240.00713.92
7.0.30.0250.00313.94
7.0.20.0230.00513.79
7.0.10.0230.01013.88
7.0.00.0330.01113.70
5.6.400.0000.01213.95
5.6.390.0000.01014.38
5.6.380.0140.00014.04
5.6.370.0000.01714.37
5.6.360.0040.00814.13
5.6.350.0060.00914.05
5.6.340.0080.00414.18
5.6.330.0030.00913.79
5.6.320.0110.00314.30
5.6.310.0030.00914.40
5.6.300.0040.00714.05
5.6.290.0070.00714.22
5.6.280.0000.01414.15
5.6.270.0030.00613.89
5.6.260.0060.00614.24
5.6.250.0000.01314.07
5.6.240.0060.00913.88
5.6.230.0080.00413.98
5.6.220.0130.00613.86
5.6.210.0150.00014.11
5.6.200.0100.00314.07
5.6.190.0090.00614.07
5.6.180.0100.00014.14
5.6.170.0110.00413.98
5.6.160.0040.00814.04
5.6.150.0040.01113.98
5.6.140.0030.01014.18
5.6.130.0140.00014.08
5.6.120.0040.01114.04
5.6.110.0090.00414.04
5.6.100.0080.00814.30
5.6.90.0060.00914.03
5.6.80.0130.00314.05
5.6.70.0030.01014.15
5.6.60.0080.00313.98
5.6.50.0000.01113.79
5.6.40.0040.00714.10
5.6.30.0040.00414.16
5.6.20.0070.00413.96
5.6.10.0030.01014.00
5.6.00.0070.01013.96

preferences:
53.4 ms | 401 KiB | 5 Q