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('á'); 225 //echo utf8(0xE1); á $strTest='holá'; for($i = 0, $n = mb_strlen($strTest); $i < $n; $i++) { $mbchar = mb_substr($strTest, $i, 1); echo 'current char: '.$mbchar.' '; echo 'uniord= '.uniord($mbchar).' '; echo 'prev dec= '.(uniord($mbchar)-1).' '; echo 'prev hex= '.dechex(uniord($mbchar)-1).' '; echo 'prev char= '.utf8(dechex(uniord($mbchar)-1)).' - '; }

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)
8.3.60.0140.00016.50
8.3.50.0340.00721.99
8.3.40.0140.00318.67
8.3.30.0110.00719.07
8.3.20.0040.00420.20
8.3.10.0060.00323.59
8.3.00.0040.00419.38
8.2.180.0090.00616.50
8.2.170.0110.00422.96
8.2.160.0040.01120.13
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0040.00422.27
8.2.110.0070.00322.23
8.2.100.0060.00617.70
8.2.90.0080.00018.92
8.2.80.0040.00417.97
8.2.70.0050.00317.38
8.2.60.0040.00417.91
8.2.50.0000.00818.07
8.2.40.0060.00319.76
8.2.30.0090.00019.77
8.2.20.0000.00717.50
8.2.10.0000.00817.83
8.2.00.0000.01217.46
8.1.280.0100.00725.92
8.1.270.0080.00024.02
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00323.83
8.1.230.0080.00419.18
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0000.01017.23
8.1.190.0030.00617.10
8.1.180.0050.00518.10
8.1.170.0040.00418.49
8.1.160.0040.00421.87
8.1.150.0040.00418.46
8.1.140.0070.00017.39
8.1.130.0000.00817.84
8.1.120.0000.00717.36
8.1.110.0030.00517.29
8.1.100.0000.01017.27
8.1.90.0050.00217.29
8.1.80.0050.00317.38
8.1.70.0000.00717.25
8.1.60.0000.00917.37
8.1.50.0040.00417.25
8.1.40.0050.00217.33
8.1.30.0040.00417.50
8.1.20.0040.00417.48
8.1.10.0030.00617.43
8.1.00.0070.00317.32
8.0.300.0070.00018.77
8.0.290.0080.00016.93
8.0.280.0070.00018.22
8.0.270.0000.00717.06
8.0.260.0030.00617.16
8.0.250.0030.00316.91
8.0.240.0070.00016.94
8.0.230.0000.00716.98
8.0.220.0030.00316.74
8.0.210.0030.00516.78
8.0.200.0000.00616.94
8.0.190.0000.00916.84
8.0.180.0000.00916.91
8.0.170.0030.00516.86
8.0.160.0000.00716.89
8.0.150.0040.00416.80
8.0.140.0040.00416.79
8.0.130.0050.00013.28
8.0.120.0070.00016.70
8.0.110.0030.00616.86
8.0.100.0040.00416.82
8.0.90.0000.00716.76
8.0.80.0130.00316.83
8.0.70.0000.00716.73
8.0.60.0000.00716.80
8.0.50.0040.00416.70
8.0.30.0120.01016.87
8.0.20.0110.00717.40
8.0.10.0040.00417.04
8.0.00.0100.00716.62
7.4.330.0000.00615.08
7.4.320.0000.00616.63
7.4.300.0050.00216.53
7.4.290.0000.00716.55
7.4.280.0040.00416.52
7.4.270.0070.00016.55
7.4.260.0040.00416.57
7.4.250.0060.00316.60
7.4.240.0060.00216.68
7.4.230.0000.00716.44
7.4.220.0170.00016.47
7.4.210.0050.00816.58
7.4.200.0030.00316.64
7.4.190.0030.00316.70
7.4.160.0100.00716.51
7.4.150.0090.00917.40
7.4.140.0070.01217.86
7.4.130.0060.01316.54
7.4.120.0110.00616.61
7.4.110.0090.00916.70
7.4.100.0040.01816.75
7.4.90.0110.00616.45
7.4.80.0140.00419.39
7.4.70.0040.01516.68
7.4.60.0070.01016.77
7.4.50.0040.00016.68
7.4.40.0060.01022.77
7.4.30.0110.00516.50
7.4.00.0070.01115.07
7.3.330.0030.00313.39
7.3.320.0000.00513.53
7.3.310.0050.00216.56
7.3.300.0000.00716.33
7.3.290.0130.00416.45
7.3.280.0060.01016.36
7.3.270.0190.00317.40
7.3.260.0090.00916.43
7.3.250.0110.00716.64
7.3.240.0130.00316.59
7.3.230.0060.01016.41
7.3.210.0110.01216.66
7.3.200.0120.01219.39
7.3.190.0120.00916.38
7.3.180.0100.00616.45
7.3.170.0160.00016.39
7.3.160.0120.00416.38
7.3.120.0090.00914.93
7.2.330.0100.00716.72
7.2.320.0060.01216.72
7.2.310.0110.01016.83
7.2.300.0030.01316.75
7.2.290.0070.01016.66
7.2.60.0030.01217.00
7.2.00.0070.00719.57
7.1.200.0080.00415.84
7.1.100.0060.00618.27
7.1.70.0030.00716.89
7.1.60.0150.00919.46
7.1.50.0110.00834.71
7.1.00.0000.07722.29
7.0.200.0040.00416.76
7.0.140.0070.06722.05
7.0.60.0100.06319.94
7.0.50.0000.04717.89
7.0.40.0070.06320.07
7.0.30.0430.05720.26
7.0.20.0230.05020.23
7.0.10.0070.09020.12
7.0.00.0100.08020.09
5.6.280.0030.07720.88
5.6.210.0030.09020.51
5.6.200.0000.04318.23
5.6.190.0100.08020.52
5.6.180.0100.04720.63
5.6.170.0170.04320.58
5.6.160.0030.09020.54
5.6.150.0070.08018.18
5.6.140.0030.07018.28
5.6.130.0000.06018.15
5.6.120.0100.08321.01
5.6.110.0000.09021.00
5.6.100.0070.06321.00
5.6.90.0170.07721.03
5.6.80.0070.03720.42
5.5.350.0200.05020.56
5.5.340.0070.07718.09
5.5.330.0170.07320.27
5.5.320.0100.06320.36
5.5.310.0300.06020.31
5.5.300.0130.07317.99
5.5.290.0100.08018.07
5.5.280.0170.07320.79
5.5.270.0070.09020.86
5.5.260.0030.08320.70
5.5.250.0130.03720.80
5.5.240.0230.07320.30
5.4.450.0730.05319.38
5.4.440.0770.05719.48
5.4.430.0700.05319.33
5.4.420.0070.06319.31
5.4.410.0800.06019.34
5.4.400.0100.05719.16
5.4.390.0670.06719.27
5.4.380.0530.04318.79
5.4.370.0370.06018.74
5.4.360.0430.04718.55
5.4.350.0430.04018.79
5.4.340.0400.05318.58
5.4.320.0060.04312.52
5.4.310.0070.04112.52
5.4.300.0040.03712.52
5.4.290.0090.05412.50
5.4.280.0180.04812.39
5.4.270.0110.04012.40
5.4.260.0080.05212.40
5.4.250.0180.05412.40
5.4.240.0070.08712.40
5.4.230.0090.06212.39
5.4.220.0180.07312.39
5.4.210.0140.07412.39
5.4.200.0180.06612.39
5.4.190.0220.07512.39
5.4.180.0130.06412.39
5.4.170.0150.06412.39
5.4.160.0120.04512.39
5.4.150.0140.06812.39
5.4.140.0090.04812.07
5.4.130.0090.04612.06
5.4.120.0170.10712.02
5.4.110.0110.04812.02
5.4.100.0090.03812.01
5.4.90.0100.04812.02
5.4.80.0120.04312.01
5.4.70.0110.04512.01
5.4.60.0080.03412.01
5.4.50.0090.03512.01
5.4.40.0070.03512.00
5.4.30.0050.04112.00
5.4.20.0080.03711.99
5.4.10.0050.03811.99
5.4.00.0030.04111.48
5.3.290.0110.04012.80
5.3.280.0270.08512.71
5.3.270.0110.03812.72
5.3.260.0140.05912.72
5.3.250.0110.06012.72
5.3.240.0090.04812.72
5.3.230.0090.04112.71
5.3.220.0060.04812.68
5.3.210.0120.06012.68
5.3.200.0130.07912.68
5.3.190.0090.05912.68
5.3.180.0100.05112.68
5.3.170.0090.05312.67
5.3.160.0120.05812.68
5.3.150.0150.05212.68
5.3.140.0100.05812.66
5.3.130.0110.05712.66
5.3.120.0190.05412.65
5.3.110.0140.07312.66
5.3.100.0100.05512.14
5.3.90.0110.05112.12
5.3.80.0110.04712.11
5.3.70.0110.04712.11
5.3.60.0070.04812.10
5.3.50.0140.03812.05
5.3.40.0100.04812.05
5.3.30.0070.03612.00
5.3.20.0080.03711.79
5.3.10.0050.04011.75
5.3.00.0080.04111.74
5.2.170.0050.0339.24
5.2.160.0110.0339.24
5.2.150.0190.0769.24
5.2.140.0060.0429.23
5.2.130.0060.0419.20
5.2.120.0130.0339.20
5.2.110.0080.0489.20
5.2.100.0080.0389.20
5.2.90.0080.0389.20
5.2.80.0110.0749.20
5.2.70.0080.0479.20
5.2.60.0090.0429.16
5.2.50.0080.0359.13
5.2.40.0070.0309.10
5.2.30.0050.0399.07
5.2.20.0090.0299.06
5.2.10.0060.0308.97
5.2.00.0030.0338.83
5.1.60.0060.0268.12
5.1.50.0060.0298.11
5.1.40.0080.0388.09
5.1.30.0070.0428.44
5.1.20.0080.0308.46
5.1.10.0060.0298.19
5.1.00.0060.0288.19
5.0.50.0060.0266.68
5.0.40.0100.0296.54
5.0.30.0070.0466.36
5.0.20.0050.0226.34
5.0.10.0010.0266.32
5.0.00.0040.0706.31
4.4.90.0050.0214.77
4.4.80.0120.0404.76
4.4.70.0100.0254.75
4.4.60.0100.0294.75
4.4.50.0060.0274.77
4.4.40.0100.0414.71
4.4.30.0050.0374.76
4.4.20.0030.0234.84
4.4.10.0110.0414.84
4.4.00.0030.0344.76
4.3.110.0070.0384.67
4.3.100.0090.0254.66
4.3.90.0050.0214.63
4.3.80.0070.0304.61
4.3.70.0040.0284.63
4.3.60.0030.0234.63
4.3.50.0050.0214.63
4.3.40.0080.0374.56
4.3.30.0020.0233.37
4.3.20.0040.0473.35
4.3.10.0120.0293.30
4.3.00.0330.02010.54

preferences:
53.39 ms | 401 KiB | 5 Q