3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0; $i<20; $i++) { echo base64_encode(pack('S', $i*256)) . "\n"; }

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)
8.3.70.0040.01116.58
8.3.60.0170.00316.50
8.3.50.0120.00722.84
8.3.40.0070.01018.67
8.3.30.0120.00318.89
8.3.20.0050.00220.18
8.3.10.0090.00021.73
8.3.00.0000.00817.38
8.2.180.0150.00416.50
8.2.170.0090.00522.96
8.2.160.0070.00720.52
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00421.09
8.2.110.0090.00022.20
8.2.100.0040.00719.52
8.2.90.0040.00419.08
8.2.80.0090.00317.97
8.2.70.0080.00017.49
8.2.60.0000.00917.80
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0000.00717.97
8.2.20.0040.00417.54
8.2.10.0030.00618.10
8.2.00.0040.00417.67
8.1.280.0040.01125.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.96
8.1.230.0040.00719.16
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0040.00617.22
8.1.180.0040.00418.10
8.1.170.0000.00818.46
8.1.160.0040.00422.00
8.1.150.0000.00718.77
8.1.140.0000.00817.41
8.1.130.0000.00617.80
8.1.120.0050.00217.49
8.1.110.0000.00817.43
8.1.100.0040.00417.33
8.1.90.0070.00017.43
8.1.80.0070.00017.41
8.1.70.0000.00817.38
8.1.60.0000.01117.59
8.1.50.0000.00817.50
8.1.40.0000.00817.39
8.1.30.0080.00017.53
8.1.20.0040.00417.66
8.1.10.0050.00217.44
8.1.00.0060.00317.43
8.0.300.0000.00718.77
8.0.290.0030.00616.75
8.0.280.0040.00418.48
8.0.270.0060.00317.30
8.0.260.0000.00717.24
8.0.250.0030.00316.98
8.0.240.0030.00316.87
8.0.230.0030.00316.79
8.0.220.0030.00316.92
8.0.210.0080.00016.78
8.0.200.0050.00316.87
8.0.190.0040.00416.94
8.0.180.0000.00716.82
8.0.170.0000.00816.95
8.0.160.0070.00016.93
8.0.150.0000.00716.78
8.0.140.0000.00716.87
8.0.130.0030.00313.27
8.0.120.0000.00716.87
8.0.110.0000.00716.77
8.0.100.0000.00716.92
8.0.90.0000.00716.69
8.0.80.0110.01116.84
8.0.70.0040.00416.89
8.0.60.0000.00716.80
8.0.50.0040.00416.68
8.0.30.0070.01216.96
8.0.20.0140.00517.40
8.0.10.0030.00316.91
8.0.00.0080.01016.65
7.4.330.0030.00315.00
7.4.320.0040.00416.56
7.4.300.0070.00016.33
7.4.290.0000.00716.43
7.4.280.0030.00616.54
7.4.270.0050.00316.47
7.4.260.0000.00716.42
7.4.250.0030.00316.36
7.4.240.0030.00316.50
7.4.230.0000.00716.56
7.4.220.0140.00416.54
7.4.210.0080.00616.39
7.4.200.0030.00316.24
7.4.160.0100.01016.33
7.4.150.0040.01317.40
7.4.140.0120.01017.86
7.4.130.0110.00716.56
7.4.120.0080.01016.37
7.4.110.0070.01016.59
7.4.100.0120.01016.57
7.4.90.0060.01216.29
7.4.80.0090.00919.39
7.4.70.0090.01116.37
7.4.60.0070.01116.42
7.4.50.0030.00316.22
7.4.40.0090.01216.60
7.4.30.0100.00716.54
7.4.00.0070.01014.79
7.3.330.0020.00213.12
7.3.320.0050.00013.20
7.3.310.0030.00316.32
7.3.300.0070.00016.10
7.3.290.0090.00916.22
7.3.280.0090.00816.23
7.3.270.0140.00317.40
7.3.260.0090.01216.53
7.3.250.0100.01016.47
7.3.240.0080.00816.25
7.3.230.0160.00316.39
7.3.210.0140.00316.64
7.3.200.0100.00719.39
7.3.190.0110.01116.30
7.3.180.0090.00616.41
7.3.170.0170.00516.40
7.3.160.0070.01016.32
7.2.330.0090.00916.75
7.2.320.0030.01316.75
7.2.310.0090.00916.40
7.2.300.0130.00716.26
7.2.290.0130.00616.29
7.2.00.0070.00319.00
7.1.100.0000.01117.78
7.1.70.0080.00017.01
7.1.60.0100.01419.40
7.1.50.0060.01616.63
7.1.00.0030.07322.57
7.0.200.0060.00916.63
7.0.140.0000.07722.16
7.0.60.0130.07320.01
7.0.50.0170.07017.88
7.0.40.0030.07020.30
7.0.30.0130.05320.01
7.0.20.0330.07720.00
7.0.10.0030.04320.13
7.0.00.0070.04320.17
5.6.280.0130.06320.86
5.6.210.0030.04020.50
5.6.200.0030.07718.21
5.6.190.0070.08320.57
5.6.180.0300.04720.57
5.6.170.0300.07020.62
5.6.160.0100.08320.54
5.6.150.0070.03718.18
5.6.140.0070.06018.21
5.6.130.0130.07718.09
5.6.120.0100.08720.99
5.6.110.0130.08021.10
5.6.100.0070.04021.11
5.6.90.0070.04020.88
5.6.80.0070.05020.40
5.5.350.4230.04320.32
5.5.340.0070.07317.95
5.5.330.0070.05720.25
5.5.320.0200.08020.51
5.5.310.0370.07720.20
5.5.300.0030.08717.96
5.5.290.0070.07317.96
5.5.280.0100.08320.89
5.5.270.0070.05720.75
5.5.260.0130.07020.96
5.5.250.0130.04720.46
5.5.240.0170.07020.15
5.4.450.0770.05319.14
5.4.440.0800.07719.61
5.4.430.0870.06719.20
5.4.420.0200.06319.16
5.4.410.0630.06319.08
5.4.400.0700.05718.93
5.4.390.0330.05318.96
5.4.380.0170.05018.52
5.4.370.0130.03718.67
5.4.360.0170.03718.59
5.4.350.0120.03911.98
5.4.340.0110.04711.97
5.4.320.0060.03612.46
5.4.310.0090.03512.46
5.4.300.0050.04112.46
5.4.290.0070.04312.45
5.4.280.0080.03712.35
5.4.270.0070.03512.35
5.4.260.0070.03612.35
5.4.250.0070.03912.35
5.4.240.0070.03712.35
5.4.230.0080.03912.34
5.4.220.0070.03512.34
5.4.210.0100.03312.34
5.4.200.0070.03712.34
5.4.190.0070.03612.34
5.4.180.0060.03612.34
5.4.170.0070.03912.35
5.4.160.0110.03212.35
5.4.150.0080.03612.34
5.4.140.0080.03912.03
5.4.130.0080.04212.01
5.4.120.0060.03511.97
5.4.110.0050.03711.97
5.4.100.0090.03311.97
5.4.90.0040.04311.96
5.4.80.0090.03911.96
5.4.70.0060.03611.96
5.4.60.0050.03611.96
5.4.50.0080.04211.96
5.4.40.0050.03611.95
5.4.30.0030.04011.95
5.4.20.0060.03411.95
5.4.10.0070.03311.94
5.4.00.0040.03711.43
5.3.290.0050.03912.80
5.3.280.0060.03912.70
5.3.270.0060.04112.72
5.3.260.0060.04812.72
5.3.250.0060.05412.72
5.3.240.0080.03812.72
5.3.230.0100.03712.71
5.3.220.0120.05112.68
5.3.210.0100.05812.68
5.3.200.0140.05312.68
5.3.190.0080.06012.68
5.3.180.0150.06412.67
5.3.170.0090.05612.67
5.3.160.0080.05512.67
5.3.150.0090.05812.67
5.3.140.0070.07112.66
5.3.130.0100.06512.66
5.3.120.0070.05212.66
5.3.110.0110.03712.66
5.3.100.0080.03612.12
5.3.90.0040.04112.09
5.3.80.0060.04012.08
5.3.70.0090.03712.07
5.3.60.0070.03712.06
5.3.50.0080.03712.00
5.3.40.0110.04612.00
5.3.30.0110.04911.94
5.3.20.0140.05311.72
5.3.10.0070.05511.69
5.3.00.0040.03811.67
5.2.170.0050.0389.18
5.2.160.0050.0319.18
5.2.150.0070.0309.18
5.2.140.0040.0329.17
5.2.130.0060.0309.14
5.2.120.0040.0289.14
5.2.110.0040.0309.14
5.2.100.0060.0289.14
5.2.90.0050.0299.14
5.2.80.0070.0289.13
5.2.70.0070.0409.13
5.2.60.0100.0499.08
5.2.50.0070.0399.05
5.2.40.0040.0399.03
5.2.30.0070.0419.01
5.2.20.0090.0369.00
5.2.10.0050.0338.92
5.2.00.0070.0318.78
5.1.60.0030.0258.06
5.1.50.0060.0238.05
5.1.40.0050.0248.04
5.1.30.0030.0268.39
5.1.20.0060.0308.41
5.1.10.0050.0258.14
5.1.00.0040.0278.13
5.0.50.0050.0216.62
5.0.40.0100.0156.47
5.0.30.0030.0336.29
5.0.20.0040.0196.26
5.0.10.0040.0216.23
5.0.00.0050.0356.23
4.4.90.0050.0184.78
4.4.80.0060.0134.75
4.4.70.0040.0184.76
4.4.60.0060.0164.76
4.4.50.0030.0194.77
4.4.40.0020.0284.71
4.4.30.0040.0154.76
4.4.20.0030.0174.84
4.4.10.0040.0154.85
4.4.00.0010.0284.75
4.3.110.0030.0174.67
4.3.100.0050.0174.66
4.3.90.0060.0154.63
4.3.80.0030.0334.58
4.3.70.0030.0204.63
4.3.60.0070.0194.63
4.3.50.0060.0204.63
4.3.40.0030.0274.54
4.3.30.0040.0203.28
4.3.20.0030.0193.25
4.3.10.0070.0283.21
4.3.00.0170.0207.59

preferences:
40.59 ms | 401 KiB | 5 Q