3v4l.org

run code in 300+ PHP versions simultaneously
<?php function utf8($num) { if($num<=0x7F) return chr($num); if($num<=0x7FF) return chr(($num>>6)+192).chr(($num&63)+128); if($num<=0xFFFF) return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128); if($num<=0x1FFFFF) return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128).chr(($num&63)+128); return ''; } function uniord($c) { $ord0 = ord($c{0}); if ($ord0>=0 && $ord0<=127) return $ord0; $ord1 = ord($c{1}); if ($ord0>=192 && $ord0<=223) return ($ord0-192)*64 + ($ord1-128); $ord2 = ord($c{2}); if ($ord0>=224 && $ord0<=239) return ($ord0-224)*4096 + ($ord1-128)*64 + ($ord2-128); $ord3 = ord($c{3}); if ($ord0>=240 && $ord0<=247) return ($ord0-240)*262144 + ($ord1-128)*4096 + ($ord2-128)*64 + ($ord3-128); return false; } echo uniord('รก'); echo utf8(0xE1);

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)
8.3.60.0090.00916.75
8.3.50.0140.00621.96
8.3.40.0130.00318.76
8.3.30.0090.00619.11
8.3.20.0040.00420.29
8.3.10.0000.00823.61
8.3.00.0030.00619.38
8.2.180.0220.00018.16
8.2.170.0140.00722.96
8.2.160.0070.01120.39
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0050.00222.25
8.2.110.0090.00022.43
8.2.100.0060.00617.75
8.2.90.0000.00919.09
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0040.00417.68
8.2.50.0000.00818.07
8.2.40.0050.00319.82
8.2.30.0000.00819.77
8.2.20.0000.00817.59
8.2.10.0040.00418.03
8.2.00.0030.00917.46
8.1.280.0110.00425.92
8.1.270.0080.00023.91
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0040.00423.98
8.1.230.0070.00417.42
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0060.00317.10
8.1.190.0000.00817.28
8.1.180.0000.01018.10
8.1.170.0030.00518.65
8.1.160.0070.00321.91
8.1.150.0040.00418.50
8.1.140.0040.00417.36
8.1.130.0000.00717.80
8.1.120.0040.00417.36
8.1.110.0080.00017.34
8.1.100.0040.00417.23
8.1.90.0040.00417.38
8.1.80.0000.00717.25
8.1.70.0030.00317.22
8.1.60.0060.00317.50
8.1.50.0030.00617.38
8.1.40.0000.00717.43
8.1.30.0030.00517.48
8.1.20.0040.00417.54
8.1.10.0000.00817.42
8.1.00.0000.00817.29
8.0.300.0040.00418.77
8.0.290.0030.00616.75
8.0.280.0000.00718.34
8.0.270.0000.00818.54
8.0.260.0030.00317.07
8.0.250.0080.00016.92
8.0.240.0030.00316.89
8.0.230.0080.00016.83
8.0.220.0030.00316.93
8.0.210.0040.00416.85
8.0.200.0000.00616.92
8.0.190.0030.00516.84
8.0.180.0040.00416.84
8.0.170.0040.00416.89
8.0.160.0000.00716.85
8.0.150.0040.00416.73
8.0.140.0040.00416.79
8.0.130.0000.00513.33
8.0.120.0030.00516.74
8.0.110.0040.00416.78
8.0.100.0050.00216.83
8.0.90.0000.00716.83
8.0.80.0120.00316.92
8.0.70.0040.00416.80
8.0.60.0000.00816.88
8.0.50.0040.00416.81
8.0.30.0090.01017.00
8.0.20.0090.01117.40
8.0.10.0070.00017.02
8.0.00.0110.00816.81
7.4.330.0000.00515.15
7.4.320.0060.00016.45
7.4.300.0000.00616.68
7.4.290.0030.00316.63
7.4.280.0070.00316.45
7.4.270.0000.00716.60
7.4.260.0070.00016.63
7.4.250.0050.00316.47
7.4.240.0040.00416.52
7.4.230.0040.00416.74
7.4.220.0130.01316.50
7.4.210.0040.01416.66
7.4.200.0000.00716.66
7.4.190.0000.00716.50
7.4.160.0070.01016.59
7.4.150.0070.01017.40
7.4.140.0090.00917.86
7.4.130.0060.01116.62
7.4.120.0150.00116.60
7.4.110.0200.00316.71
7.4.100.0100.01016.38
7.4.90.0070.01116.61
7.4.80.0070.01419.39
7.4.70.0060.01616.67
7.4.60.0040.01116.41
7.4.50.0000.00416.41
7.4.40.0100.00322.77
7.4.30.0120.00316.59
7.4.00.0070.01014.77
7.3.330.0030.00313.36
7.3.320.0000.00513.34
7.3.310.0000.00716.39
7.3.300.0000.00716.35
7.3.290.0070.01416.29
7.3.280.0090.00916.29
7.3.270.0130.00317.40
7.3.260.0060.01216.44
7.3.250.0110.00916.51
7.3.240.0060.01516.74
7.3.230.0110.00616.50
7.3.210.0070.01016.60
7.3.200.0100.01019.39
7.3.190.0130.01016.65
7.3.180.0150.00016.40
7.3.170.0110.00416.30
7.3.160.0030.01316.43
7.3.120.0040.01115.06
7.2.330.0110.00816.66
7.2.320.0040.01316.54
7.2.310.0090.01316.70
7.2.300.0100.00716.52
7.2.290.0090.01316.79
7.2.60.0090.00616.74
7.2.00.0060.00619.40
7.1.200.0060.00615.89
7.1.100.0030.01018.20
7.1.70.0060.01017.21
7.1.60.0120.00619.46
7.1.50.0100.01734.92
7.1.00.0030.07722.54
7.0.200.0030.00616.47
7.0.140.0070.07022.12
7.0.60.0100.07019.94
7.0.50.0170.07317.93
7.0.40.0170.06720.02
7.0.30.0230.07720.26
7.0.20.0200.09020.30
7.0.10.0030.09720.18
7.0.00.0100.07020.16
5.6.280.0000.07720.88
5.6.210.0100.06720.53
5.6.200.0100.06018.19
5.6.190.0070.05020.77
5.6.180.0100.07320.47
5.6.170.0330.06320.52
5.6.160.0030.07720.58
5.6.150.0030.05318.16
5.6.140.0130.04318.21
5.6.130.0070.07018.18
5.6.120.0070.05321.01
5.6.110.0170.07721.06
5.6.100.0070.04321.04
5.6.90.0070.08720.98
5.6.80.0070.05320.55
5.5.350.0300.07320.34
5.5.340.0030.05017.99
5.5.330.0070.04020.42
5.5.320.0300.07320.31
5.5.310.0400.06720.50
5.5.300.0030.04018.04
5.5.290.0030.04318.09
5.5.280.0000.05320.91
5.5.270.0030.06320.79
5.5.260.0100.07020.90
5.5.250.0070.06320.68
5.5.240.0170.07320.29
5.4.450.0100.07319.45
5.4.440.0200.06019.44
5.4.430.0100.05319.55
5.4.420.0770.05019.69
5.4.410.0700.05019.05
5.4.400.0470.04718.98
5.4.390.0630.05019.15
5.4.380.0370.06318.58
5.4.370.0370.07018.60
5.4.360.0730.05718.60
5.4.350.0400.06718.77
5.4.340.0430.07018.48
5.4.320.0080.03812.52
5.4.310.0060.03912.52
5.4.300.0060.05012.52
5.4.290.0160.08412.50
5.4.280.0080.05812.40
5.4.270.0090.05612.40
5.4.260.0050.06212.40
5.4.250.0130.05712.40
5.4.240.0080.05712.40
5.4.230.0090.06212.39
5.4.220.0130.05712.39
5.4.210.0100.05212.39
5.4.200.0110.07212.39
5.4.190.0080.05412.38
5.4.180.0060.05612.38
5.4.170.0090.06912.39
5.4.160.0080.05112.39
5.4.150.0120.06512.39
5.4.140.0090.05212.07
5.4.130.0080.05212.06
5.4.120.0070.05312.02
5.4.110.0070.05312.01
5.4.100.0100.04912.01
5.4.90.0050.05512.01
5.4.80.0080.05212.02
5.4.70.0070.05012.01
5.4.60.0050.05212.01
5.4.50.0060.05112.01
5.4.40.0050.05212.00
5.4.30.0070.04712.00
5.4.20.0040.05211.99
5.4.10.0070.04012.00
5.4.00.0100.03811.48
5.3.290.0080.04212.80
5.3.280.0040.04112.71
5.3.270.0070.04012.73
5.3.260.0070.04012.72
5.3.250.0080.04712.72
5.3.240.0100.05012.72
5.3.230.0050.03912.71
5.3.220.0050.03712.68
5.3.210.0060.04012.68
5.3.200.0030.03812.68
5.3.190.0090.03312.68
5.3.180.0060.03612.67
5.3.170.0080.04612.67
5.3.160.0090.03712.68
5.3.150.0080.03512.67
5.3.140.0050.03712.66
5.3.130.0090.03512.66
5.3.120.0050.04612.66
5.3.110.0060.03912.66
5.3.100.0060.03812.14
5.3.90.0050.04112.12
5.3.80.0060.03612.12
5.3.70.0070.03512.11
5.3.60.0050.03912.10
5.3.50.0050.03612.04
5.3.40.0040.03812.04
5.3.30.0060.03612.00
5.3.20.0080.03411.78
5.3.10.0050.05211.75
5.3.00.0080.04111.74
5.2.170.0050.0339.24
5.2.160.0060.0289.24
5.2.150.0060.0299.24
5.2.140.0030.0339.23
5.2.130.0030.0369.20
5.2.120.0030.0309.20
5.2.110.0040.0319.20
5.2.100.0030.0319.19
5.2.90.0050.0299.20
5.2.80.0050.0339.20
5.2.70.0070.0309.19
5.2.60.0050.0429.16
5.2.50.0040.0459.12
5.2.40.0030.0339.10
5.2.30.0050.0299.07
5.2.20.0050.0299.06
5.2.10.0110.0328.96
5.2.00.0060.0398.83
5.1.60.0080.0328.11
5.1.50.0100.0328.11
5.1.40.0040.0278.08
5.1.30.0050.0288.44
5.1.20.0080.0268.45
5.1.10.0050.0358.18
5.1.00.0060.0368.19
5.0.50.0090.0356.68
5.0.40.0050.0306.54
5.0.30.0030.0356.34
5.0.20.0040.0216.30
5.0.10.0010.0246.29
5.0.00.0010.0436.28
4.4.90.0060.0234.78
4.4.80.0040.0214.76
4.4.70.0030.0224.76
4.4.60.0040.0154.75
4.4.50.0030.0244.77
4.4.40.0060.0284.71
4.4.30.0060.0124.76
4.4.20.0030.0154.84
4.4.10.0040.0154.85
4.4.00.0030.0264.76
4.3.110.0030.0164.67
4.3.100.0040.0144.67
4.3.90.0030.0154.63
4.3.80.0030.0284.58
4.3.70.0030.0154.63
4.3.60.0030.0174.63
4.3.50.0020.0174.63
4.3.40.0020.0254.54
4.3.30.0000.0183.33
4.3.20.0010.0183.30
4.3.10.0020.0163.27
4.3.00.0200.01710.54

preferences:
47.78 ms | 401 KiB | 5 Q