3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getUTF8CharCode($c) { $h = ord($c{0}); if ($h <= 0x7F) { return $h; } else if ($h < 0xC2) { return false; } else if ($h <= 0xDF) { return ($h & 0x1F) << 6 | (ord($c{1}) & 0x3F); } else if ($h <= 0xEF) { return ($h & 0x0F) << 12 | (ord($c{1}) & 0x3F) << 6 | (ord($c{2}) & 0x3F); } else if ($h <= 0xF4) { return ($h & 0x0F) << 18 | (ord($c{1}) & 0x3F) << 12 | (ord($c{2}) & 0x3F) << 6 | (ord($c{3}) & 0x3F); } else { return false; } } echo getUTF8CharCode('a');

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)
8.3.60.0110.00716.88
8.3.50.0170.00317.97
8.3.40.0110.00718.70
8.3.30.0080.00819.04
8.3.20.0070.00020.03
8.3.10.0170.00023.47
8.3.00.0000.00818.99
8.2.180.0060.00918.06
8.2.170.0090.00622.96
8.2.160.0110.00720.35
8.2.150.0000.00724.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0030.00520.91
8.2.110.0060.00322.11
8.2.100.0120.00019.51
8.2.90.0040.00419.14
8.2.80.0000.00917.97
8.2.70.0000.00817.50
8.2.60.0080.00017.68
8.2.50.0030.00518.07
8.2.40.0080.00019.88
8.2.30.0000.00818.13
8.2.20.0080.00017.53
8.2.10.0040.00417.80
8.2.00.0000.00817.42
8.1.270.0040.00423.83
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00023.79
8.1.230.0070.00319.00
8.1.220.0030.00517.74
8.1.210.0050.00318.77
8.1.200.0090.00017.23
8.1.190.0060.00317.10
8.1.180.0030.00718.10
8.1.170.0000.00918.55
8.1.160.0000.00721.94
8.1.150.0020.00518.41
8.1.140.0000.00717.32
8.1.130.0000.00717.70
8.1.120.0000.00717.34
8.1.110.0050.00317.31
8.1.100.0040.00417.29
8.1.90.0040.00417.36
8.1.80.0040.00417.31
8.1.70.0000.00617.32
8.1.60.0040.00417.43
8.1.50.0000.00817.43
8.1.40.0050.00217.28
8.1.30.0040.00417.58
8.1.20.0000.00717.45
8.1.10.0030.00717.29
8.1.00.0040.00417.32
8.0.300.0000.00718.77
8.0.290.0040.00416.93
8.0.280.0060.00318.28
8.0.270.0000.00717.17
8.0.260.0000.00617.03
8.0.250.0000.00716.82
8.0.240.0000.00616.76
8.0.230.0070.00016.88
8.0.220.0000.00816.86
8.0.210.0050.00316.82
8.0.200.0030.00316.75
8.0.190.0040.00416.86
8.0.180.0020.00516.91
8.0.170.0000.00816.71
8.0.160.0040.00416.93
8.0.150.0000.00816.77
8.0.140.0000.00716.68
8.0.130.0070.00013.29
8.0.120.0000.00816.66
8.0.110.0040.00416.65
8.0.100.0040.00416.93
8.0.90.0070.00016.61
8.0.80.0120.00316.83
8.0.70.0070.00016.82
8.0.60.0000.00716.89
8.0.50.0000.00716.68
8.0.30.0080.01116.94
8.0.20.0090.00917.40
8.0.10.0080.00016.93
8.0.00.0030.01416.56
7.4.330.0050.00015.14
7.4.320.0030.00316.55
7.4.300.0030.00516.54
7.4.290.0040.00416.57
7.4.280.0030.00516.62
7.4.270.0050.00516.52
7.4.260.0000.00716.49
7.4.250.0040.00416.51
7.4.240.0040.00316.60
7.4.230.0030.00316.37
7.4.220.0090.01616.48
7.4.210.0120.00716.56
7.4.200.0000.00716.65
7.4.190.0050.00316.60
7.4.160.0040.01316.66
7.4.150.0070.01017.40
7.4.140.0080.00917.86
7.4.130.0080.00916.63
7.4.120.0050.01616.53
7.4.110.0180.00616.75
7.4.100.0100.01316.44
7.4.90.0030.01516.61
7.4.80.0140.00319.39
7.4.70.0030.01216.43
7.4.60.0100.00716.32
7.4.50.0050.00316.39
7.4.40.0180.00416.39
7.4.30.0090.00916.53
7.4.00.0060.00615.13
7.3.330.0060.00013.38
7.3.320.0030.00313.26
7.3.310.0000.00716.42
7.3.300.0000.00616.36
7.3.290.0090.00616.24
7.3.280.0080.00716.33
7.3.270.0120.00617.40
7.3.260.0110.00716.35
7.3.250.0090.01316.60
7.3.240.0100.01016.67
7.3.230.0110.00716.59
7.3.210.0150.00416.63
7.3.200.0080.00819.39
7.3.190.0150.00616.55
7.3.180.0090.00616.50
7.3.170.0060.01216.40
7.3.160.0040.01216.45
7.3.120.0040.01114.94
7.3.10.0080.00716.59
7.3.00.0080.00616.60
7.2.330.0120.00616.88
7.2.320.0080.00816.54
7.2.310.0160.00716.49
7.2.300.0100.00616.59
7.2.290.0130.00916.55
7.2.130.0120.00316.82
7.2.120.0050.01016.89
7.2.110.0070.00516.87
7.2.100.0060.00716.95
7.2.90.0040.01116.96
7.2.80.0050.00516.70
7.2.70.0060.00616.76
7.2.60.0080.00816.78
7.2.50.0100.00616.96
7.2.40.0060.01016.67
7.2.30.0090.00717.06
7.2.20.0070.00916.66
7.2.10.0050.01016.99
7.2.00.0080.00717.68
7.1.250.0070.00515.69
7.1.100.0090.00318.23
7.1.70.0000.00817.21
7.1.60.0160.00619.46
7.1.50.0000.01117.09
7.1.00.0070.07322.44
7.0.200.0000.01016.86
7.0.140.0030.07322.10
7.0.60.0130.07319.80
7.0.50.0030.08317.89
7.0.40.0030.08719.96
7.0.30.0230.04320.09
7.0.20.0270.08020.24
7.0.10.0070.06320.08
7.0.00.0130.08020.33
5.6.280.0070.07021.13
5.6.210.0130.07320.68
5.6.200.0070.08318.27
5.6.190.0070.07320.48
5.6.180.0170.04720.61
5.6.170.0370.06720.55
5.6.160.0100.07320.48
5.6.150.0030.07318.15
5.6.140.0070.08018.15
5.6.130.0100.07718.30
5.6.120.0070.05320.97
5.6.110.0030.08021.02
5.6.100.0130.07721.09
5.6.90.0100.07720.99
5.6.80.0100.06020.42
5.5.350.0000.08720.40
5.5.340.0070.08318.05
5.5.330.0030.04320.27
5.5.320.0270.04320.20
5.5.310.0230.04720.24
5.5.300.0070.07318.00
5.5.290.0100.03317.93
5.5.280.0030.04320.84
5.5.270.0100.07320.98
5.5.260.0070.08320.90
5.5.250.0200.05720.69
5.5.240.0070.06720.16
5.4.450.0770.06019.34
5.4.440.0600.05719.38
5.4.430.0070.07719.53
5.4.420.0870.05719.55
5.4.410.0930.05019.50
5.4.400.0970.06019.17
5.4.390.1100.05318.88
5.4.380.0430.05018.57
5.4.370.0500.05318.63
5.4.360.0400.04718.53
5.4.350.0330.07318.85
5.4.340.0400.06018.58
5.4.320.0090.03612.52
5.4.310.0040.03912.50
5.4.300.0080.04912.51
5.4.290.0070.05312.51
5.4.280.0100.04712.41
5.4.270.0100.04812.41
5.4.260.0080.05012.41
5.4.250.0090.05012.41
5.4.240.0080.04912.41
5.4.230.0090.04912.39
5.4.220.0080.04912.40
5.4.210.0080.04812.39
5.4.200.0080.05112.39
5.4.190.0090.04712.39
5.4.180.0080.04912.39
5.4.170.0070.05612.41
5.4.160.0080.05112.40
5.4.150.0090.04212.39
5.4.140.0080.05212.08
5.4.130.0080.04712.07
5.4.120.0130.04512.03
5.4.110.0060.05012.02
5.4.100.0110.04512.02
5.4.90.0070.05412.02
5.4.80.0130.04512.02
5.4.70.0060.04112.02
5.4.60.0120.04812.02
5.4.50.0100.04812.02
5.4.40.0070.03812.00
5.4.30.0150.03712.00
5.4.20.0090.04012.00
5.4.10.0070.03812.00
5.4.00.0080.04811.49
5.3.290.0090.03712.80
5.3.280.0080.04812.71
5.3.270.0090.04612.72
5.3.260.0100.05312.72
5.3.250.0140.04812.72
5.3.240.0050.04312.72
5.3.230.0100.04012.71
5.3.220.0090.04212.68
5.3.210.0080.05412.68
5.3.200.0110.04612.68
5.3.190.0140.04612.67
5.3.180.0080.04212.68
5.3.170.0070.05212.66
5.3.160.0050.06112.67
5.3.150.0140.04712.67
5.3.140.0080.05012.66
5.3.130.0090.05312.65
5.3.120.0060.05412.66
5.3.110.0070.05512.66
5.3.100.0090.04812.13
5.3.90.0080.05112.11
5.3.80.0060.04912.10
5.3.70.0130.04412.11
5.3.60.0160.04612.09
5.3.50.0130.04712.04
5.3.40.0110.04812.03
5.3.30.0080.04911.99
5.3.20.0070.04811.77
5.3.10.0040.05311.74
5.3.00.0080.05011.73
5.2.170.0110.0379.23
5.2.160.0060.0369.22
5.2.150.0130.0359.23
5.2.140.0030.0379.22
5.2.130.0090.0379.18
5.2.120.0090.0359.18
5.2.110.0090.0359.19
5.2.100.0110.0339.19
5.2.90.0110.0359.18
5.2.80.0110.0369.18
5.2.70.0150.0349.18
5.2.60.0060.0339.14
5.2.50.0070.0309.11
5.2.40.0100.0319.09
5.2.30.0090.0349.05
5.2.20.0080.0309.05
5.2.10.0080.0308.95
5.2.00.0040.0328.82
5.1.60.0060.0268.09
5.1.50.0080.0308.09
5.1.40.0060.0348.07
5.1.30.0090.0348.43
5.1.20.0100.0268.45
5.1.10.0040.0378.17
5.1.00.0080.0328.17
5.0.50.0070.0206.65
5.0.40.0030.0216.51
5.0.30.0020.0346.32
5.0.20.0000.0246.29
5.0.10.0060.0186.27
5.0.00.0050.0306.27
4.4.90.0030.0244.78
4.4.80.0040.0154.76
4.4.70.0020.0234.75
4.4.60.0040.0214.75
4.4.50.0030.0234.77
4.4.40.0040.0304.71
4.4.30.0060.0134.76
4.4.20.0060.0144.84
4.4.10.0030.0164.85
4.4.00.0040.0254.75
4.3.110.0080.0124.67
4.3.100.0040.0154.67
4.3.90.0030.0174.64
4.3.80.0050.0234.59
4.3.70.0010.0164.63
4.3.60.0020.0154.63
4.3.50.0040.0164.62
4.3.40.0050.0224.54
4.3.30.0040.0143.32
4.3.20.0020.0173.29
4.3.10.0030.0163.25
4.3.00.0000.0237.09

preferences:
46.78 ms | 400 KiB | 5 Q