3v4l.org

run code in 300+ PHP versions simultaneously
<?php $current = null; $count = 0; while ($current !== 0) { $count++; $bytes = openssl_random_pseudo_bytes(2); $current = unpack("S", $bytes); } var_dump($count);

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)
8.3.60.0160.00618.31
8.3.50.0140.01021.91
8.3.40.0070.00718.98
8.3.30.0090.00918.86
8.3.20.0050.00320.34
8.3.10.0000.00820.56
8.3.00.0070.00419.51
8.2.180.0090.00616.63
8.2.170.0070.00722.96
8.2.160.0050.00820.32
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00422.23
8.2.110.0000.00922.29
8.2.100.0030.00917.72
8.2.90.0000.00719.09
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0000.01017.93
8.2.50.0000.00818.07
8.2.40.0000.00718.22
8.2.30.0050.00318.00
8.2.20.0040.00417.68
8.2.10.0040.00418.07
8.2.00.0030.00617.80
8.1.280.0040.01125.92
8.1.270.0060.00323.83
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.87
8.1.230.0040.00819.02
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0060.00317.35
8.1.190.0040.00417.22
8.1.180.0030.00618.10
8.1.170.0030.00618.59
8.1.160.0000.00721.94
8.1.150.0000.00818.77
8.1.140.0040.00417.30
8.1.130.0050.00217.70
8.1.120.0050.00317.42
8.1.110.0020.00517.28
8.1.100.0000.00717.43
8.1.90.0030.00317.38
8.1.80.0000.00717.30
8.1.70.0040.00417.30
8.1.60.0030.00517.51
8.1.50.0050.00317.54
8.1.40.0040.00417.39
8.1.30.0080.00017.63
8.1.20.0030.00517.70
8.1.10.0030.00617.56
8.1.00.0060.00317.55
8.0.300.0000.00718.80
8.0.290.0000.00716.75
8.0.280.0000.00718.43
8.0.270.0040.00417.18
8.0.260.0000.00717.08
8.0.250.0070.00016.89
8.0.240.0030.00516.83
8.0.230.0000.00616.98
8.0.220.0040.00516.83
8.0.210.0000.00716.86
8.0.200.0050.00216.93
8.0.190.0060.00316.95
8.0.180.0000.01116.77
8.0.170.0060.00316.80
8.0.160.0000.00716.84
8.0.150.0070.00016.84
8.0.140.0080.00016.88
8.0.130.0050.00013.36
8.0.120.0000.00816.79
8.0.110.0040.00416.85
8.0.100.0040.00416.73
8.0.90.0040.00416.93
8.0.80.0090.00616.93
8.0.70.0050.00216.68
8.0.60.0000.00716.78
8.0.50.0000.00716.93
8.0.30.0120.00916.98
8.0.20.0080.01117.40
8.0.10.0000.00717.05
8.0.00.0140.00316.65
7.4.330.0000.00515.16
7.4.320.0060.00016.65
7.4.300.0060.00016.60
7.4.290.0040.00416.61
7.4.280.0040.00416.49
7.4.270.0030.00316.50
7.4.260.0040.00416.60
7.4.250.0000.00716.52
7.4.240.0020.00516.51
7.4.230.0000.00716.68
7.4.220.0060.01216.66
7.4.210.0070.00716.47
7.4.200.0030.00316.34
7.4.160.0100.00716.68
7.4.150.0130.00417.40
7.4.140.0080.00817.86
7.4.130.0050.01116.54
7.4.120.0140.00816.60
7.4.110.0060.01016.37
7.4.100.0190.00016.57
7.4.90.0090.00916.51
7.4.80.0090.00819.39
7.4.70.0030.01916.56
7.4.60.0130.00616.46
7.4.50.0030.00316.39
7.4.40.0120.00316.26
7.4.30.0100.01016.60
7.3.330.0050.00013.24
7.3.320.0000.00513.08
7.3.310.0030.00316.37
7.3.300.0070.00016.37
7.3.290.0080.00816.36
7.3.280.0080.01016.31
7.3.270.0100.01317.40
7.3.260.0100.01316.38
7.3.250.0110.00616.30
7.3.240.0100.00716.68
7.3.230.0090.00816.45
7.3.210.0120.00616.45
7.3.200.0220.00019.39
7.3.190.0140.00316.39
7.3.180.0040.01216.39
7.3.170.0090.00916.51
7.3.160.0110.00716.22
7.2.330.0070.01116.68
7.2.320.0120.01016.72
7.2.310.0050.01416.68
7.2.300.0080.00816.71
7.2.290.0110.01016.57
7.1.70.0602.44117.30
7.1.60.4502.05219.32
7.1.50.3602.14217.28
7.1.00.0002.50022.35
7.0.200.3202.18116.89
7.0.140.0072.49321.92
7.0.60.0102.49020.09
7.0.50.0032.49717.88
7.0.40.0102.49019.80
7.0.30.0432.45719.77
7.0.20.0232.47720.00
7.0.10.0432.45719.99
7.0.00.0032.49719.99
5.6.280.0072.49321.15
5.6.210.0132.48720.73
5.6.200.0102.49018.07
5.6.190.0032.49720.43
5.6.180.0232.47720.39
5.6.170.0272.47320.48
5.6.160.0002.50020.24
5.6.150.0002.50018.22
5.6.140.0132.48718.19
5.6.130.0172.48318.07
5.6.120.0032.49720.98
5.6.110.0132.48721.17
5.6.100.0032.49721.00
5.6.90.0072.49321.05
5.6.80.0102.49020.56
5.6.70.3432.15720.41
5.5.350.0202.48020.40
5.5.340.0102.49017.89
5.5.330.0002.50020.13
5.5.320.0332.46720.19
5.5.310.0402.46020.14
5.5.300.0032.49717.88
5.5.290.0102.49017.89
5.5.280.0032.49720.68
5.5.270.0032.49720.85
5.5.260.0072.49320.92
5.5.250.0032.49720.77
5.5.240.0372.45720.21
5.4.450.2832.20019.25
5.4.440.0772.36019.41
5.4.430.0831.90719.29
5.4.422.4470.00019.31
5.4.412.4630.00019.32
5.4.402.4100.00019.24
5.4.392.3430.00018.95
5.4.382.1670.00019.01
5.4.372.2200.00019.10
5.4.362.2100.00019.08
5.4.352.2830.00019.02
5.4.342.4830.00018.95
5.4.320.0060.03512.46
5.4.310.0040.03812.45
5.4.300.0060.03612.46
5.4.290.0060.03712.45
5.4.280.0050.03612.35
5.4.270.0050.03712.35
5.4.260.0110.03612.35
5.4.250.0030.04012.35
5.4.240.0040.03712.35
5.4.230.0060.03612.34
5.4.220.0050.04312.34
5.4.210.0050.03512.34
5.4.200.0070.04412.34
5.4.190.0040.03812.34
5.4.180.0090.03812.34
5.4.170.0060.03612.35
5.4.160.0070.04112.34
5.4.150.0110.04112.34
5.4.140.0050.04412.02
5.4.130.0070.03412.02
5.4.120.0040.04411.97
5.4.110.0060.04011.97
5.4.100.0070.03311.97
5.4.90.0050.03711.96
5.4.80.0070.03511.96
5.4.70.0040.03611.96
5.4.60.0050.03811.96
5.4.50.0080.03911.96
5.4.40.0070.03411.95
5.4.30.0040.03611.95
5.4.20.0050.03511.95
5.4.10.0050.03411.95
5.4.00.0050.03611.44
5.3.290.0050.04512.80
5.3.280.0060.04312.71
5.3.270.0060.05512.72
5.3.260.0130.06412.72
5.3.250.0080.03912.72
5.3.240.0090.03412.71
5.3.230.0060.04712.71
5.3.220.0040.04512.68
5.3.210.0080.03612.68
5.3.200.0060.04612.68
5.3.190.0060.03812.68
5.3.180.0050.03812.67
5.3.170.0070.05212.67
5.3.160.0070.04212.67
5.3.150.0020.04012.68
5.3.140.0070.03712.66
5.3.130.0040.04012.66
5.3.120.0050.03912.66
5.3.110.0080.03612.66
5.3.100.0060.04112.12
5.3.90.0060.03612.08
5.3.80.0080.03612.08
5.3.70.0060.03812.08
5.3.60.0070.04712.06
5.3.50.0100.03712.00
5.3.40.0070.04812.00
5.3.30.0120.03311.95
5.3.20.0020.03911.73
5.3.10.0030.03711.70
5.3.00.0030.03811.68
5.2.170.0050.0309.18
5.2.160.0030.0319.19
5.2.150.0060.0299.18
5.2.140.0040.0319.18
5.2.130.0060.0279.14
5.2.120.0060.0269.14
5.2.110.0050.0309.15
5.2.100.0030.0299.14
5.2.90.0050.0309.14
5.2.80.0060.0299.14
5.2.70.0040.0319.14
5.2.60.0080.0289.09
5.2.50.0050.0309.06
5.2.40.0060.0279.04
5.2.30.0050.0299.02
5.2.20.0030.0319.00
5.2.10.0040.0298.92
5.2.00.0070.0268.78
5.1.60.0030.0258.07
5.1.50.0040.0248.06
5.1.40.0050.0248.05
5.1.30.0040.0268.39
5.1.20.0050.0288.42
5.1.10.0010.0298.14
5.1.00.0060.0238.14
5.0.50.0030.0206.62
5.0.40.0030.0196.48
5.0.30.0030.0316.29
5.0.20.0020.0206.27
5.0.10.0030.0206.24
5.0.00.0000.0346.23
4.4.90.0020.0154.78
4.4.80.0010.0164.76
4.4.70.0040.0144.75
4.4.60.0010.0164.76
4.4.50.0040.0144.77
4.4.40.0020.0254.71
4.4.30.0030.0154.76
4.4.20.0020.0164.84
4.4.10.0060.0124.85
4.4.00.0000.0284.76
4.3.110.0000.0274.67
4.3.100.0040.0134.66
4.3.90.0020.0144.63
4.3.80.0040.0224.58
4.3.70.0020.0144.63
4.3.60.0030.0254.63
4.3.50.0060.0194.63
4.3.40.0020.0244.54
4.3.30.0010.0163.28
4.3.20.0030.0153.26
4.3.10.0020.0163.22
4.3.00.0000.02016.10

preferences:
39.4 ms | 401 KiB | 5 Q