3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'lorem ipsum'; for ($length = 0; isset($str[$length]); $length++); echo $length;

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)
8.3.60.0160.00618.27
8.3.50.0190.00621.95
8.3.40.0070.00718.58
8.3.30.0030.01018.95
8.3.20.0040.00420.14
8.3.10.0050.00323.46
8.3.00.0080.00022.39
8.2.180.0120.00316.75
8.2.170.0080.00822.96
8.2.160.0070.00722.16
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0090.00019.38
8.2.110.0030.00622.25
8.2.100.0070.00717.72
8.2.90.0000.00819.25
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0000.00917.80
8.2.50.0030.00618.07
8.2.40.0080.00018.22
8.2.30.0030.00518.07
8.2.20.0030.00517.76
8.2.10.0040.00417.68
8.2.00.0060.00317.55
8.1.280.0100.01025.92
8.1.270.0040.00421.95
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.72
8.1.230.0110.00019.06
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0090.00017.23
8.1.190.0000.00817.41
8.1.180.0040.00418.10
8.1.170.0000.00818.35
8.1.160.0040.00421.81
8.1.150.0040.00418.48
8.1.140.0040.00417.29
8.1.130.0030.00317.74
8.1.120.0040.00417.38
8.1.110.0040.00417.40
8.1.100.0030.00317.36
8.1.90.0060.00317.21
8.1.80.0000.00817.33
8.1.70.0030.00317.33
8.1.60.0040.00717.55
8.1.50.0000.00817.40
8.1.40.0040.00417.50
8.1.30.0000.00817.57
8.1.20.0060.00317.58
8.1.10.0050.00217.53
8.1.00.0000.00817.41
8.0.300.0050.00318.77
8.0.290.0040.00417.05
8.0.280.0030.00318.44
8.0.270.0030.00517.25
8.0.260.0030.00316.68
8.0.250.0060.00016.90
8.0.240.0080.00016.94
8.0.230.0000.00816.87
8.0.220.0000.00716.85
8.0.210.0000.00716.71
8.0.200.0040.00416.80
8.0.190.0070.00016.75
8.0.180.0070.00016.85
8.0.170.0000.00816.75
8.0.160.0000.00716.73
8.0.150.0040.00416.72
8.0.140.0000.00716.75
8.0.130.0040.00413.24
8.0.120.0000.00716.77
8.0.110.0000.00716.79
8.0.100.0030.00616.83
8.0.90.0000.00816.93
8.0.80.0100.00716.73
8.0.70.0040.00416.70
8.0.60.0050.00216.93
8.0.50.0000.00716.71
8.0.30.0120.00616.78
8.0.20.0150.00917.40
8.0.10.0000.00716.79
8.0.00.0090.01316.83
7.4.330.0000.00515.00
7.4.320.0030.00316.53
7.4.300.0040.00416.56
7.4.290.0030.00316.49
7.4.280.0030.00316.43
7.4.270.0040.00416.35
7.4.260.0050.00216.49
7.4.250.0000.00716.51
7.4.240.0020.00616.43
7.4.230.0070.00016.47
7.4.220.0120.01216.63
7.4.210.0080.00816.58
7.4.200.0070.00016.64
7.4.190.0030.00316.70
7.4.160.0040.01116.36
7.4.150.0160.00017.40
7.4.140.0120.00917.86
7.4.130.0060.01316.40
7.4.120.0090.00916.34
7.4.110.0040.01316.35
7.4.100.0120.00616.23
7.4.90.0090.00916.40
7.4.80.0060.01016.34
7.4.70.0070.01016.32
7.4.60.0090.01016.38
7.4.50.0030.00316.29
7.4.40.0070.00722.77
7.4.30.0110.00716.50
7.4.00.0090.00614.64
7.3.330.0050.00013.17
7.3.320.0050.00013.25
7.3.310.0030.00316.20
7.3.300.0030.00316.16
7.3.290.0070.00716.22
7.3.280.0090.00916.27
7.3.270.0070.01117.40
7.3.260.0160.00016.72
7.3.250.0130.00416.45
7.3.240.0090.00616.54
7.3.230.0070.01416.39
7.3.210.0080.00816.21
7.3.200.0150.00619.39
7.3.190.0110.01116.35
7.3.180.0090.01116.56
7.3.170.0060.01216.29
7.3.160.0120.00916.39
7.3.120.0030.00914.54
7.2.330.0110.00516.33
7.2.320.0070.01016.70
7.2.310.0130.01016.49
7.2.300.0120.00616.67
7.2.290.0100.00616.55
7.2.00.0000.01219.38
7.1.200.0030.01015.73
7.1.100.0070.01017.66
7.1.70.0030.01017.04
7.1.60.0100.01419.24
7.1.50.0030.02016.80
7.1.00.0070.07022.40
7.0.200.0030.00516.43
7.0.140.0030.07021.93
7.0.60.0030.05019.91
7.0.50.0000.06317.88
7.0.40.0030.09020.24
7.0.30.0270.03320.31
7.0.20.0200.05720.17
7.0.10.0100.08020.13
7.0.00.0130.08020.04
5.6.280.0100.06720.77
5.6.210.0130.07720.55
5.6.200.0000.04718.13
5.6.190.0030.05320.57
5.6.180.0000.04020.67
5.6.170.0330.07320.54
5.6.160.0100.03320.50
5.6.150.0070.03718.18
5.6.140.0030.05718.07
5.6.130.0130.07318.11
5.6.120.0100.07321.04
5.6.110.0070.06721.12
5.6.100.0170.07020.97
5.6.90.0030.04321.09
5.6.80.0100.08020.37
5.5.350.0030.07720.52
5.5.340.0070.04017.96
5.5.330.0030.06020.38
5.5.320.0270.08020.41
5.5.310.0270.07320.32
5.5.300.0030.04318.02
5.5.290.0130.07717.91
5.5.280.0030.08020.84
5.5.270.0000.08320.96
5.5.260.0000.04720.72
5.5.250.0030.08320.63
5.5.240.0030.07020.14
5.4.450.0430.04019.41
5.4.440.0400.04019.10
5.4.430.0330.04319.40
5.4.420.0100.04319.24
5.4.410.0070.06018.92
5.4.400.0070.05318.73
5.4.390.0170.05718.62
5.4.380.0100.05718.68
5.4.370.0070.05718.62
5.4.360.0100.05318.72
5.4.350.0070.06018.49
5.4.340.0030.06018.46
5.4.320.0060.04112.45
5.4.310.0060.03812.45
5.4.300.0060.04312.45
5.4.290.0110.04012.45
5.4.280.0080.04112.34
5.4.270.0060.03912.35
5.4.260.0060.04012.34
5.4.250.0070.05412.35
5.4.240.0120.03712.35
5.4.230.0090.04512.34
5.4.220.0090.04112.34
5.4.210.0100.04112.34
5.4.200.0060.03812.34
5.4.190.0050.03812.34
5.4.180.0060.03712.33
5.4.170.0170.04212.33
5.4.160.0120.04812.32
5.4.150.0170.04612.32
5.4.140.0140.04412.00
5.4.130.0140.04311.99
5.4.120.0160.04011.95
5.4.110.0150.04111.94
5.4.100.0130.04411.95
5.4.90.0150.04211.95
5.4.80.0060.05111.95
5.4.70.0230.06311.94
5.4.60.0110.04511.94
5.4.50.0130.04411.94
5.4.40.0130.04311.93
5.4.30.0150.04311.93
5.4.20.0090.04711.93
5.4.10.0130.04311.93
5.4.00.0150.04011.42
5.3.290.0050.04312.80
5.3.280.0060.03912.71
5.3.270.0200.04312.73
5.3.260.0170.04412.72
5.3.250.0180.04212.72
5.3.240.0260.06512.72
5.3.230.0100.05112.70
5.3.220.0150.04412.68
5.3.210.0140.04612.68
5.3.200.0170.04312.68
5.3.190.0250.06612.68
5.3.180.0150.04412.67
5.3.170.0150.04412.67
5.3.160.0140.04512.68
5.3.150.0130.04612.68
5.3.140.0180.04212.66
5.3.130.0170.04412.66
5.3.120.0180.04212.66
5.3.110.0190.04312.66
5.3.100.0280.06412.12
5.3.90.0130.04812.08
5.3.80.0300.09012.07
5.3.70.0120.04812.07
5.3.60.0200.04112.07
5.3.50.0150.04612.00
5.3.40.0170.04212.00
5.3.30.0130.04411.95
5.3.20.0140.04611.73
5.3.10.0150.04211.68
5.3.00.0200.03711.67
5.2.170.0150.0339.18
5.2.160.0230.0549.18
5.2.150.0100.0379.17
5.2.140.0140.0359.17
5.2.130.0130.0339.13
5.2.120.0160.0309.13
5.2.110.0150.0339.14
5.2.100.0390.0709.14
5.2.90.0140.0339.13
5.2.80.0150.0349.12
5.2.70.0160.0339.12
5.2.60.0140.0369.08
5.2.50.0150.0359.05
5.2.40.0140.0339.02
5.2.30.0150.0359.00
5.2.20.0150.0339.00
5.2.10.0130.0348.92
5.2.00.0120.0358.79
5.1.60.0110.0288.06
5.1.50.0130.0278.07
5.1.40.0120.0278.05
5.1.30.0310.0718.40
5.1.20.0110.0338.43
5.1.10.0120.0338.15
5.1.00.0120.0308.14
5.0.50.0100.0256.62
5.0.40.0090.0236.48
5.0.30.0110.0336.30
5.0.20.0090.0246.27
5.0.10.0190.0436.24
5.0.00.0120.0326.23
4.4.90.0070.0184.78
4.4.80.0040.0214.76
4.4.70.0050.0204.75
4.4.60.0110.0454.75
4.4.50.0080.0174.77
4.4.40.0050.0314.71
4.4.30.0090.0164.75
4.4.20.0070.0184.84
4.4.10.0100.0154.85
4.4.00.0040.0324.76
4.3.110.0060.0194.66
4.3.100.0070.0174.66
4.3.90.0140.0444.64
4.3.80.0050.0324.58
4.3.70.0090.0194.63
4.3.60.0100.0154.63
4.3.50.0050.0194.63
4.3.40.0060.0284.54
4.3.30.0060.0203.30
4.3.20.0050.0183.29
4.3.10.0070.0183.25
4.3.00.0070.02013.32

preferences:
41.03 ms | 401 KiB | 5 Q