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("")); var_dump(strlen("0")); var_dump(strlen(true));

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)
8.3.40.0070.00718.54
8.3.30.0060.00818.79
8.3.20.0040.00420.21
8.3.10.0040.00423.61
8.3.00.0040.00419.25
8.2.170.0090.00922.96
8.2.160.0090.00920.37
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0090.00019.16
8.2.110.0030.00620.36
8.2.100.0090.00318.03
8.2.90.0060.00319.09
8.2.80.0000.00817.97
8.2.70.0090.00017.25
8.2.60.0040.00417.68
8.2.50.0060.00318.07
8.2.40.0000.00817.78
8.2.30.0050.00319.34
8.2.20.0070.00017.63
8.2.10.0040.00417.98
8.2.00.0000.00817.66
8.1.270.0040.00424.04
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00420.84
8.1.230.0030.00717.76
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.23
8.1.190.0100.00017.23
8.1.180.0050.00318.10
8.1.170.0000.00818.51
8.1.160.0030.00521.94
8.1.150.0040.00418.87
8.1.140.0040.00417.32
8.1.130.0000.00817.80
8.1.120.0040.00417.25
8.1.110.0000.00817.38
8.1.100.0080.00017.27
8.1.90.0040.00417.32
8.1.80.0000.00717.33
8.1.70.0050.00317.20
8.1.60.0040.00417.43
8.1.50.0040.00417.30
8.1.40.0060.00317.43
8.1.30.0030.00617.54
8.1.20.0050.00217.43
8.1.10.0040.00417.34
8.1.00.0000.00717.40
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00918.31
8.0.270.0030.00317.00
8.0.260.0000.00616.98
8.0.250.0030.00316.83
8.0.240.0030.00316.90
8.0.230.0070.00016.86
8.0.220.0000.00716.82
8.0.210.0000.00616.86
8.0.200.0000.00616.92
8.0.190.0040.00416.88
8.0.180.0050.00316.74
8.0.170.0080.00016.79
8.0.160.0080.00016.73
8.0.150.0000.00716.74
8.0.140.0030.00316.77
8.0.130.0060.00313.19
8.0.120.0030.00616.80
8.0.110.0020.00516.89
8.0.100.0030.00516.88
8.0.90.0070.00016.88
8.0.80.0070.01416.79
8.0.70.0070.00016.66
8.0.60.0000.00716.68
8.0.50.0040.00416.78
8.0.30.0140.00516.89
8.0.20.0060.01517.40
8.0.10.0040.00416.92
8.0.00.0060.01316.52
7.4.330.0030.00315.00
7.4.320.0000.00616.40
7.4.300.0030.00316.47
7.4.290.0040.00416.39
7.4.280.0000.00816.45
7.4.270.0030.00316.47
7.4.260.0000.00716.27
7.4.250.0040.00416.32
7.4.240.0000.00716.40
7.4.230.0040.00416.21
7.4.220.0110.01116.54
7.4.210.0090.00616.57
7.4.200.0040.00416.51
7.4.160.0180.00316.47
7.4.150.0120.00617.40
7.4.140.0060.01117.86
7.4.130.0100.00716.32
7.4.120.0170.00316.39
7.4.110.0070.01316.23
7.4.100.0200.00316.43
7.4.90.0110.00716.29
7.4.80.0100.00719.39
7.4.70.0060.01216.32
7.4.60.0110.00516.45
7.4.50.0040.00416.08
7.4.40.0120.00316.55
7.4.30.0060.00916.68
7.4.00.0070.00714.96
7.3.330.0000.00612.94
7.3.320.0030.00313.03
7.3.310.0030.00316.27
7.3.300.0000.00616.22
7.3.290.0070.00716.16
7.3.280.0110.00616.20
7.3.270.0070.01117.40
7.3.260.0090.00616.09
7.3.250.0100.00716.35
7.3.240.0030.01616.42
7.3.230.0040.01516.39
7.3.210.0140.00316.46
7.3.200.0100.00719.39
7.3.190.0130.01016.26
7.3.180.0130.00616.12
7.3.170.0070.00816.27
7.3.160.0080.00816.46
7.3.120.0040.01414.61
7.3.110.0030.01314.65
7.3.100.0050.01114.75
7.3.90.0080.00614.46
7.3.80.0090.00614.74
7.3.70.0100.00314.68
7.3.60.0040.00714.61
7.3.50.0070.00714.73
7.3.40.0060.00614.69
7.3.30.0040.00714.54
7.3.20.0040.00616.60
7.3.10.0020.00916.64
7.3.00.0070.00916.59
7.2.330.0060.01216.39
7.2.320.0150.00816.17
7.2.310.0090.01216.49
7.2.300.0110.00716.41
7.2.290.0060.01216.34
7.2.250.0110.00814.84
7.2.240.0030.01514.86
7.2.230.0060.01114.67
7.2.220.0020.00914.86
7.2.210.0060.00714.80
7.2.200.0030.00914.73
7.2.190.0090.00414.94
7.2.180.0020.01214.82
7.2.170.0080.00814.97
7.2.00.0080.00419.26
7.1.330.0050.00815.53
7.1.320.0030.00915.64
7.1.310.0050.00715.59
7.1.300.0040.00915.51
7.1.290.0060.00615.51
7.1.280.0070.00415.73
7.1.270.0090.00515.66
7.1.260.0110.00415.71
7.1.100.0170.01017.58
7.1.70.0000.00717.04
7.1.60.0120.00619.46
7.1.50.0120.00916.89
7.1.00.0030.07722.44
7.0.200.0190.00316.50
7.0.140.0030.07722.00
7.0.60.0130.06319.92
7.0.50.0030.08717.80
7.0.40.0130.08020.21
7.0.30.0270.04720.16
7.0.20.0200.07320.09
7.0.10.0270.05719.98
7.0.00.0130.05020.00
5.6.280.0070.06721.11
5.6.210.0100.06720.54
5.6.200.0170.06718.12
5.6.190.0070.04020.41
5.6.180.0270.03720.41
5.6.170.0070.05020.61
5.6.160.0100.07320.71
5.6.150.0100.08018.11
5.6.140.0070.06718.11
5.6.130.0030.08718.18
5.6.120.0170.08020.98
5.6.110.0030.08720.97
5.6.100.0130.07020.88
5.6.90.0100.08020.99
5.6.80.0000.04320.50
5.6.70.0270.03720.41
5.5.350.0100.08020.34
5.5.340.0100.07017.95
5.5.330.0000.04720.07
5.5.320.0330.03320.17
5.5.310.0300.07020.34
5.5.300.0030.04018.01
5.5.290.0130.06718.02
5.5.280.0070.04020.88
5.5.270.0070.05020.68
5.5.260.0070.06720.75
5.5.250.0070.04020.74
5.5.240.0000.08320.07
5.4.450.0230.04019.46
5.4.440.0230.05319.46
5.4.430.0400.05019.25
5.4.420.0270.04319.56
5.4.410.0100.05018.97
5.4.400.0170.04018.95
5.4.390.0230.05019.13
5.4.380.0330.06718.65
5.4.370.0400.06018.66
5.4.360.0330.05318.59
5.4.350.0230.06718.65
5.4.340.0330.04718.73
5.4.320.0060.03612.46
5.4.310.0030.04112.45
5.4.300.0070.03612.46
5.4.290.0080.03612.45
5.4.280.0030.03812.35
5.4.270.0050.03712.35
5.4.260.0050.03912.35
5.4.250.0080.04412.35
5.4.240.0040.03812.35
5.4.230.0070.03612.34
5.4.220.0060.03912.34
5.4.210.0050.03512.34
5.4.200.0070.04212.34
5.4.190.0050.03712.34
5.4.180.0040.03812.34
5.4.170.0050.03712.35
5.4.160.0070.03512.35
5.4.150.0090.03212.34
5.4.140.0070.03512.02
5.4.130.0050.03612.01
5.4.120.0040.03711.97
5.4.110.0040.03711.97
5.4.100.0080.03811.97
5.4.90.0070.03611.96
5.4.80.0090.03311.96
5.4.70.0060.03411.96
5.4.60.0070.03311.96
5.4.50.0070.03311.96
5.4.40.0060.03511.95
5.4.30.0060.03511.95
5.4.20.0040.03711.95
5.4.10.0080.03211.95
5.4.00.0030.03811.43
5.3.290.0040.04212.80
5.3.280.0060.04012.71
5.3.270.0110.03412.72
5.3.260.0070.03912.72
5.3.250.0070.03912.72
5.3.240.0070.03712.72
5.3.230.0070.03712.71
5.3.220.0070.03712.68
5.3.210.0060.03912.68
5.3.200.0090.03312.68
5.3.190.0080.03612.68
5.3.180.0090.03412.68
5.3.170.0070.04212.67
5.3.160.0050.03812.67
5.3.150.0070.03812.67
5.3.140.0070.03512.66
5.3.130.0040.04112.66
5.3.120.0090.03612.66
5.3.110.0060.03912.66
5.3.100.0070.03612.12
5.3.90.0070.04012.09
5.3.80.0080.03512.08
5.3.70.0060.03712.08
5.3.60.0070.03612.07
5.3.50.0110.03312.00
5.3.40.0050.03812.00
5.3.30.0090.03211.94
5.3.20.0070.03411.72
5.3.10.0040.03811.69
5.3.00.0070.03611.68
5.2.170.0050.0309.18
5.2.160.0050.0289.18
5.2.150.0060.0299.18
5.2.140.0040.0349.17
5.2.130.0060.0299.13
5.2.120.0050.0299.13
5.2.110.0090.0309.14
5.2.100.0040.0319.15
5.2.90.0060.0289.14
5.2.80.0060.0299.13
5.2.70.0050.0309.13
5.2.60.0020.0329.09
5.2.50.0030.0319.05
5.2.40.0040.0309.03
5.2.30.0050.0289.01
5.2.20.0050.0289.00
5.2.10.0040.0288.93
5.2.00.0040.0298.79
5.1.60.0040.0248.08
5.1.50.0030.0268.07
5.1.40.0080.0218.06
5.1.30.0040.0268.40
5.1.20.0050.0268.43
5.1.10.0060.0258.15
5.1.00.0070.0258.15
5.0.50.0040.0216.63
5.0.40.0040.0186.48
5.0.30.0050.0306.30
5.0.20.0070.0236.27
5.0.10.0060.0256.25
5.0.00.0060.0356.24
4.4.90.0040.0174.78
4.4.80.0010.0174.75
4.4.70.0050.0144.75
4.4.60.0050.0154.75
4.4.50.0020.0174.77
4.4.40.0040.0234.71
4.4.30.0000.0184.75
4.4.20.0030.0154.84
4.4.10.0030.0164.85
4.4.00.0020.0264.76
4.3.110.0040.0144.67
4.3.100.0010.0174.66
4.3.90.0010.0164.63
4.3.80.0040.0244.59
4.3.70.0030.0154.63
4.3.60.0030.0154.63
4.3.50.0030.0164.63
4.3.40.0010.0254.54
4.3.30.0020.0163.30
4.3.20.0000.0183.27
4.3.10.0030.0153.23
4.3.00.0000.01718.56

preferences:
43.75 ms | 400 KiB | 5 Q