3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr("test", 0));

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)
8.3.70.0110.01116.75
8.3.60.0100.00716.50
8.3.50.0080.01022.06
8.3.40.0100.00718.41
8.3.30.0000.01418.96
8.3.20.0080.00020.16
8.3.10.0040.01121.66
8.3.00.0030.00519.26
8.2.190.0100.00718.20
8.2.180.0090.00918.16
8.2.170.0070.00722.96
8.2.160.0100.01020.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0060.00319.64
8.2.110.0060.00319.44
8.2.100.0060.00617.50
8.2.90.0090.00018.90
8.2.80.0080.00017.97
8.2.70.0040.00817.34
8.2.60.0000.00817.68
8.2.50.0030.00618.07
8.2.40.0080.00317.67
8.2.30.0040.00418.05
8.2.20.0080.00017.41
8.2.10.0070.00017.80
8.2.00.0050.00317.44
8.1.280.0110.00425.92
8.1.270.0100.00018.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.80
8.1.230.0060.00617.42
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0100.00316.98
8.1.190.0040.00416.98
8.1.180.0060.00318.10
8.1.170.0040.00420.44
8.1.160.0000.00721.91
8.1.150.0040.00418.64
8.1.140.0050.00317.24
8.1.130.0030.00317.82
8.1.120.0000.00817.36
8.1.110.0030.00617.25
8.1.100.0040.00417.19
8.1.90.0050.00217.24
8.1.80.0050.00217.31
8.1.70.0070.00017.18
8.1.60.0060.00317.30
8.1.50.0040.00417.43
8.1.40.0000.00817.41
8.1.30.0000.00817.53
8.1.20.0000.00717.37
8.1.10.0090.00017.30
8.1.00.0000.00717.35
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0070.00018.31
8.0.270.0030.00317.16
8.0.260.0030.00317.14
8.0.250.0030.00316.82
8.0.240.0000.00616.84
8.0.230.0000.00716.71
8.0.220.0050.00216.64
8.0.210.0040.00416.66
8.0.200.0000.00716.83
8.0.190.0050.00316.70
8.0.180.0040.00416.77
8.0.170.0000.00816.67
8.0.160.0000.00816.76
8.0.150.0000.00716.63
8.0.140.0000.00716.57
8.0.130.0060.00013.21
8.0.120.0070.00016.77
8.0.110.0040.00416.81
8.0.100.0040.00416.82
8.0.90.0080.00016.66
8.0.80.0060.01516.70
8.0.70.0040.00416.58
8.0.60.0050.00216.70
8.0.50.0000.00716.64
8.0.30.0160.00416.95
8.0.20.0100.01117.40
8.0.10.0040.00316.75
8.0.00.0050.01316.67
7.4.330.0000.00615.07
7.4.320.0000.00616.38
7.4.300.0000.00816.33
7.4.290.0040.00716.47
7.4.280.0000.00816.31
7.4.270.0030.00316.23
7.4.260.0070.00016.28
7.4.250.0000.00816.32
7.4.240.0050.00316.42
7.4.230.0000.00716.35
7.4.220.0110.01116.34
7.4.210.0070.00716.55
7.4.200.0040.00416.46
7.4.160.0030.01316.45
7.4.150.0060.01717.40
7.4.140.0090.01217.86
7.4.130.0080.00916.36
7.4.120.0130.00316.47
7.4.110.0100.00616.21
7.4.100.0070.01016.34
7.4.90.0110.00716.38
7.4.80.0140.00319.39
7.4.70.0080.00816.27
7.4.60.0100.00716.28
7.4.50.0000.00416.29
7.4.40.0040.01516.08
7.4.30.0140.00716.52
7.4.00.0030.01414.87
7.3.330.0070.00013.01
7.3.320.0080.00413.12
7.3.310.0060.00015.95
7.3.300.0000.00715.96
7.3.290.0110.00416.18
7.3.280.0080.01016.14
7.3.270.0110.00717.40
7.3.260.0070.01716.13
7.3.250.0120.00916.21
7.3.240.0130.00316.17
7.3.230.0070.01016.39
7.3.210.0160.00316.17
7.3.200.0140.00319.39
7.3.190.0080.00816.33
7.3.180.0070.01316.12
7.3.170.0150.00716.27
7.3.160.0030.01316.35
7.3.10.0200.00716.54
7.3.00.0110.00716.20
7.2.330.0140.01416.47
7.2.320.0100.01016.41
7.2.310.0050.01116.08
7.2.300.0100.00716.26
7.2.290.0060.01616.26
7.2.130.0200.00716.32
7.2.120.0190.00716.16
7.2.110.0240.00316.67
7.2.100.0210.00316.81
7.2.90.0160.00416.50
7.2.80.0140.01116.62
7.2.70.0090.00616.40
7.2.60.0090.00616.27
7.2.50.0160.00016.01
7.2.40.0320.00516.25
7.2.30.0060.01315.82
7.2.20.0160.00315.86
7.2.10.0090.00915.87
7.2.00.0070.00617.94
7.1.250.0160.00715.08
7.1.100.0070.00717.85
7.1.70.0000.00716.89
7.1.60.0130.01319.46
7.1.50.0000.01016.77
7.1.00.0030.07722.44
7.0.200.0000.01016.69
7.0.140.0000.05021.95
7.0.60.0000.08319.91
7.0.50.0030.08017.77
7.0.40.0070.04019.95
7.0.30.0170.08020.33
7.0.20.0300.06320.21
7.0.10.0300.08020.01
7.0.00.0030.08320.16
5.6.280.0030.07321.13
5.6.210.0030.08320.49
5.6.200.0130.07018.23
5.6.190.0030.08320.77
5.6.180.0230.05320.36
5.6.170.0430.05020.47
5.6.160.0030.08020.44
5.6.150.0070.03718.20
5.6.140.0000.04318.17
5.6.130.0070.07318.14
5.6.120.0030.09021.00
5.6.110.0130.07021.02
5.6.100.0030.04020.98
5.6.90.0130.07721.07
5.6.80.0030.05720.37
5.6.70.0270.06720.37
5.5.350.0100.08320.40
5.5.340.0070.07317.93
5.5.330.0170.07020.42
5.5.320.0030.05020.20
5.5.310.0430.06720.34
5.5.300.0000.04318.01
5.5.290.0030.07717.98
5.5.280.0070.04020.88
5.5.270.0070.04320.86
5.5.260.0030.05720.87
5.5.250.0170.07320.60
5.5.240.0070.05720.15
5.4.450.0370.06719.54
5.4.440.0930.05019.55
5.4.430.0830.05719.60
5.4.420.0500.06319.64
5.4.410.0570.06019.45
5.4.400.0170.05318.60
5.4.390.0130.05718.79
5.4.380.0130.06318.62
5.4.370.0130.05718.79
5.4.360.0170.06018.62
5.4.350.0200.05018.75
5.4.340.0170.05718.72
5.4.320.0130.05718.62
5.4.310.0200.05318.72
5.4.300.0300.05018.71
5.4.290.0230.07018.78
5.4.280.0200.05018.71
5.4.270.0130.05718.75
5.4.260.0170.05718.64
5.4.250.0100.06018.50
5.4.240.0370.06018.57
5.4.230.0200.07318.68
5.4.220.0170.05718.55
5.4.210.0170.07718.45
5.4.200.0200.05316.51
5.4.190.0170.07718.72
5.4.180.0170.05718.44
5.4.170.0200.06018.61
5.4.160.0330.05718.54
5.4.150.0100.06718.54
5.4.140.0100.06316.07
5.4.130.0130.05316.19
5.4.120.0170.05316.04
5.4.110.0330.04716.22
5.4.100.0170.05016.21
5.4.90.0130.05316.16
5.4.80.0070.05716.19
5.4.70.0130.05316.23
5.4.60.0170.04716.25
5.4.50.0270.03716.12
5.4.40.0030.06716.20
5.4.30.0300.04016.32
5.4.20.0130.05316.19
5.4.10.0070.05716.21
5.4.00.0170.04715.75
5.3.290.0170.05314.75
5.3.280.0200.04714.48
5.3.270.0130.05714.67
5.3.260.0100.05714.71
5.3.250.0100.05714.65
5.3.240.0130.06714.65
5.3.230.0230.05714.50
5.3.220.0170.05714.54
5.3.210.0130.06314.61
5.3.200.0170.06014.54
5.3.190.0170.05314.52
5.3.180.0230.05314.54
5.3.170.0200.05014.47
5.3.160.0130.05314.46
5.3.150.0070.06314.55
5.3.140.0200.05314.55
5.3.130.0100.06314.57
5.3.120.0170.05314.57
5.3.110.0130.05714.52
5.3.100.0200.04714.01
5.3.90.0100.05713.98
5.3.80.0170.05014.00
5.3.70.0070.06314.02
5.3.60.0230.04714.07
5.3.50.0230.06713.89
5.3.40.0170.05713.92
5.3.30.0230.04713.87
5.3.20.0130.06013.67
5.3.10.0200.04713.62
5.3.00.0170.05013.60
5.2.170.0130.04011.09
5.2.160.0070.05011.09
5.2.150.0130.04311.09
5.2.140.0170.04011.19
5.2.130.0070.05011.05
5.2.120.0170.05311.13
5.2.110.0130.04711.25
5.2.100.0170.04011.03
5.2.90.0200.03311.03
5.2.80.0100.04711.14
5.2.70.0100.04311.13
5.2.60.0070.05011.05
5.2.50.0170.03711.05
5.2.40.0070.04311.14
5.2.30.0130.04011.02
5.2.20.0130.03711.01
5.2.10.0170.03710.87
5.2.00.0100.04010.73
5.1.60.0130.0309.95
5.1.50.0100.03310.10
5.1.40.0070.0379.97
5.1.30.0170.04010.32
5.1.20.0030.06010.45
5.1.10.0070.04010.04
5.1.00.0200.04310.20
5.0.50.0030.0338.56
5.0.40.0070.0278.47
5.0.30.0030.0478.21
5.0.20.0030.0308.32
5.0.10.0070.0278.36
5.0.00.0030.0508.14
4.4.90.0000.0305.89
4.4.80.0030.0235.89
4.4.70.0070.0205.87
4.4.60.0030.0235.81
4.4.50.0130.0135.90
4.4.40.0030.0375.92
4.4.30.0130.0135.90
4.4.20.0030.0235.92
4.4.10.0070.0235.92
4.4.00.0030.0375.93
4.3.110.0030.0235.82
4.3.100.0100.0175.80
4.3.90.0070.0305.80
4.3.80.0100.0305.79
4.3.70.0030.0205.78
4.3.60.0070.0205.88
4.3.50.0030.0275.79
4.3.40.0000.0375.77
4.3.30.0000.0274.63
4.3.20.0000.0234.58
4.3.10.0000.0234.48
4.3.00.0100.0236.91

preferences:
43.67 ms | 401 KiB | 5 Q