3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strlen(null)); var_dump(strlen(0)); var_dump(strlen(1234)); var_dump(strlen(""));

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)
8.3.40.0110.00418.79
8.3.30.0100.00319.06
8.3.20.0040.00420.16
8.3.10.0040.00423.66
8.3.00.0080.00019.25
8.2.170.0110.00422.96
8.2.160.0040.01120.18
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0150.00019.37
8.2.110.0030.00620.27
8.2.100.0110.00018.03
8.2.90.0100.00018.92
8.2.80.0060.00317.97
8.2.70.0030.00617.50
8.2.60.0040.00417.91
8.2.50.0050.00318.07
8.2.40.0040.00418.09
8.2.30.0000.00819.39
8.2.20.0070.00017.53
8.2.10.0050.00217.87
8.2.00.0000.00717.61
8.1.270.0050.00323.79
8.1.260.0050.00226.35
8.1.250.0070.00028.09
8.1.240.0060.00323.80
8.1.230.0060.00618.91
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0060.00617.10
8.1.190.0000.00817.10
8.1.180.0000.00818.10
8.1.170.0000.00918.50
8.1.160.0000.00722.00
8.1.150.0040.00418.86
8.1.140.0070.00017.29
8.1.130.0030.00517.70
8.1.120.0030.00317.34
8.1.110.0080.00017.36
8.1.100.0000.00717.36
8.1.90.0040.00417.35
8.1.80.0030.00517.35
8.1.70.0000.00717.13
8.1.60.0030.00617.45
8.1.50.0000.00817.43
8.1.40.0030.00617.26
8.1.30.0040.00417.40
8.1.20.0040.00417.48
8.1.10.0040.00417.37
8.1.00.0000.00817.20
8.0.300.0080.00018.77
8.0.290.0000.00816.63
8.0.280.0070.00318.23
8.0.270.0040.00417.13
8.0.260.0030.00317.13
8.0.250.0030.00316.79
8.0.240.0070.00016.84
8.0.230.0070.00016.90
8.0.220.0070.00016.82
8.0.210.0030.00316.86
8.0.200.0030.00316.81
8.0.190.0000.00716.88
8.0.180.0050.00216.79
8.0.170.0040.00416.88
8.0.160.0000.00716.78
8.0.150.0000.00716.63
8.0.140.0040.00416.75
8.0.130.0040.00413.25
8.0.120.0040.00416.73
8.0.110.0040.00416.85
8.0.100.0000.00816.71
8.0.90.0000.00716.69
8.0.80.0060.00916.78
8.0.70.0040.00416.65
8.0.60.0080.00016.65
8.0.50.0040.00416.89
8.0.30.0130.00817.00
8.0.20.0060.01217.40
8.0.10.0070.00016.81
8.0.00.0070.01116.55
7.4.330.0000.00515.00
7.4.320.0000.00616.39
7.4.300.0000.00616.43
7.4.290.0030.00316.42
7.4.280.0000.00716.31
7.4.270.0000.00816.46
7.4.260.0070.00016.51
7.4.250.0000.00816.35
7.4.240.0020.00516.43
7.4.230.0000.00616.46
7.4.220.0120.00816.33
7.4.210.0040.01116.45
7.4.200.0030.00316.29
7.4.160.0070.00716.54
7.4.150.0070.01017.40
7.4.140.0120.00717.86
7.4.130.0100.00716.32
7.4.120.0050.01416.37
7.4.110.0100.00716.35
7.4.100.0110.00816.35
7.4.90.0070.01116.38
7.4.80.0100.00719.39
7.4.70.0090.00616.54
7.4.60.0030.01316.39
7.4.50.0040.00416.48
7.4.40.0110.00516.48
7.4.30.0090.00616.34
7.4.00.0070.01014.76
7.3.330.0000.00512.94
7.3.320.0030.00312.91
7.3.310.0060.00016.24
7.3.300.0070.00016.23
7.3.290.0040.01216.22
7.3.280.0070.01116.18
7.3.270.0030.01417.40
7.3.260.0130.00316.31
7.3.250.0060.00916.21
7.3.240.0180.00016.13
7.3.230.0060.01516.39
7.3.210.0030.01316.11
7.3.200.0140.00719.39
7.3.190.0060.01116.08
7.3.180.0110.00816.15
7.3.170.0080.00716.27
7.3.160.0090.00616.18
7.3.120.0110.00714.71
7.3.110.0090.00914.58
7.3.100.0030.01514.77
7.3.90.0090.00614.66
7.3.80.0050.00814.32
7.3.70.0050.00814.44
7.3.60.0030.01014.75
7.3.50.0030.00614.49
7.3.40.0000.01214.77
7.3.30.0060.00314.73
7.3.20.0040.00716.38
7.3.10.0070.00816.48
7.3.00.0060.00716.54
7.2.330.0070.01016.31
7.2.320.0040.01716.23
7.2.310.0070.01316.64
7.2.300.0130.01016.47
7.2.290.0080.00816.43
7.2.250.0070.01114.75
7.2.240.0100.00615.02
7.2.230.0070.00314.75
7.2.220.0030.01314.87
7.2.210.0040.01214.92
7.2.200.0040.00414.68
7.2.190.0040.00415.03
7.2.180.0030.01314.82
7.2.170.0040.01114.76
7.2.130.0070.00716.64
7.2.120.0100.00716.86
7.2.110.0000.01016.55
7.2.100.0070.00716.65
7.2.90.0070.00716.90
7.2.80.0060.00916.80
7.2.70.0060.00916.69
7.2.60.0040.01216.82
7.2.50.0070.00716.54
7.2.40.0070.00316.75
7.2.30.0090.00616.59
7.2.20.0040.01216.96
7.2.10.0040.00716.61
7.2.00.0030.01017.98
7.1.330.0030.01015.86
7.1.320.0000.01315.67
7.1.310.0060.00615.70
7.1.300.0070.00415.66
7.1.290.0070.00715.74
7.1.280.0070.01015.53
7.1.270.0000.01415.28
7.1.260.0040.00915.68
7.1.250.0040.00415.68
7.1.100.0200.00317.57
7.1.70.0060.00616.71
7.1.60.0130.01019.46
7.1.50.0100.01416.83
7.1.00.0030.07322.52
7.0.200.0100.00716.59
7.0.140.0030.07322.00
7.0.60.0100.07319.92
7.0.50.0100.05017.77
7.0.40.0070.08020.05
7.0.30.0330.03720.30
7.0.20.0330.05720.19
7.0.10.0130.05320.01
7.0.00.0000.08320.09
5.6.280.0030.07321.12
5.6.210.0070.04720.61
5.6.200.0030.06018.09
5.6.190.0100.03720.41
5.6.180.0170.04720.67
5.6.170.0200.08320.52
5.6.160.0000.08720.70
5.6.150.0070.07318.18
5.6.140.0100.07018.21
5.6.130.0100.07718.17
5.6.120.0070.04320.96
5.6.110.0070.06320.88
5.6.100.0070.04721.03
5.6.90.0000.04320.98
5.6.80.0070.07720.40
5.6.70.0270.06020.27
5.5.350.0100.05720.45
5.5.340.0030.08017.95
5.5.330.0030.04020.25
5.5.320.0330.06320.17
5.5.310.0330.03320.29
5.5.300.0070.03717.87
5.5.290.0200.06018.02
5.5.280.0130.04320.94
5.5.270.0070.08320.75
5.5.260.0030.07020.96
5.5.250.0030.08320.65
5.5.240.0100.06720.25
5.4.450.0170.04719.21
5.4.440.0430.05019.10
5.4.430.0170.05019.25
5.4.420.0270.05019.45
5.4.410.0200.05019.02
5.4.400.0330.04319.14
5.4.390.0070.05719.13
5.4.380.0370.05718.44
5.4.370.0530.05318.48
5.4.360.0400.06718.65
5.4.350.0570.04018.72
5.4.340.0500.04718.72
5.4.320.0060.03812.45
5.4.310.0040.04012.45
5.4.300.0070.03512.45
5.4.290.0040.03912.45
5.4.280.0120.03012.35
5.4.270.0060.03612.34
5.4.260.0040.03912.34
5.4.250.0020.04112.35
5.4.240.0090.03312.35
5.4.230.0040.03912.34
5.4.220.0080.03412.34
5.4.210.0070.03412.34
5.4.200.0080.03412.34
5.4.190.0060.03512.34
5.4.180.0060.03512.33
5.4.170.0030.03912.35
5.4.160.0050.03612.34
5.4.150.0050.03612.34
5.4.140.0070.03612.02
5.4.130.0060.03512.01
5.4.120.0080.03311.97
5.4.110.0050.03511.96
5.4.100.0050.03611.96
5.4.90.0060.03911.96
5.4.80.0070.03611.96
5.4.70.0040.03711.96
5.4.60.0040.03611.96
5.4.50.0040.03711.96
5.4.40.0080.03211.95
5.4.30.0090.03311.95
5.4.20.0110.04711.95
5.4.10.0070.03511.95
5.4.00.0050.03711.43
5.3.290.0090.04012.80
5.3.280.0060.03912.71
5.3.270.0090.04712.73
5.3.260.0100.03612.71
5.3.250.0070.03712.72
5.3.240.0060.03912.72
5.3.230.0070.03912.71
5.3.220.0040.03812.68
5.3.210.0100.03712.68
5.3.200.0040.03812.68
5.3.190.0040.04012.68
5.3.180.0090.03312.67
5.3.170.0060.03712.67
5.3.160.0090.03412.67
5.3.150.0050.03812.68
5.3.140.0080.04412.66
5.3.130.0080.03712.66
5.3.120.0060.04012.66
5.3.110.0080.03712.65
5.3.100.0090.04112.12
5.3.90.0100.03912.08
5.3.80.0060.03512.07
5.3.70.0070.03912.08
5.3.60.0070.03612.06
5.3.50.0060.03712.00
5.3.40.0070.03512.00
5.3.30.0080.03711.94
5.3.20.0090.03311.72
5.3.10.0080.03311.69
5.3.00.0080.04111.67
5.2.170.0030.0339.18
5.2.160.0080.0399.18
5.2.150.0070.0319.18
5.2.140.0050.0319.17
5.2.130.0050.0329.13
5.2.120.0050.0299.14
5.2.110.0060.0299.14
5.2.100.0040.0359.14
5.2.90.0090.0259.14
5.2.80.0060.0299.13
5.2.70.0010.0359.13
5.2.60.0060.0289.08
5.2.50.0020.0329.05
5.2.40.0070.0299.03
5.2.30.0080.0299.00
5.2.20.0070.0268.99
5.2.10.0050.0268.93
5.2.00.0050.0288.79
5.1.60.0040.0248.08
5.1.50.0040.0258.07
5.1.40.0060.0328.06
5.1.30.0040.0278.40
5.1.20.0030.0278.43
5.1.10.0040.0268.15
5.1.00.0050.0258.15
5.0.50.0050.0196.63
5.0.40.0020.0216.49
5.0.30.0040.0316.30
5.0.20.0050.0186.27
5.0.10.0090.0186.25
5.0.00.0040.0306.24
4.4.90.0030.0154.78
4.4.80.0020.0164.76
4.4.70.0020.0164.75
4.4.60.0030.0154.75
4.4.50.0050.0134.77
4.4.40.0020.0274.70
4.4.30.0040.0144.76
4.4.20.0040.0154.84
4.4.10.0020.0164.85
4.4.00.0000.0284.76
4.3.110.0040.0184.67
4.3.100.0040.0214.66
4.3.90.0050.0204.63
4.3.80.0050.0304.58
4.3.70.0020.0164.63
4.3.60.0020.0174.63
4.3.50.0060.0124.63
4.3.40.0000.0264.54
4.3.30.0030.0153.29
4.3.20.0040.0143.27
4.3.10.0010.0163.23
4.3.00.0100.01018.56

preferences:
36.59 ms | 400 KiB | 5 Q