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 echo utf8(0x67); $strTest='holá'; for($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)
8.3.60.0040.01116.75
8.3.50.0200.01322.06
8.3.40.0140.00318.58
8.3.30.0070.01119.04
8.3.20.0070.00020.15
8.3.10.0000.00823.52
8.3.00.0050.00319.26
8.2.180.0040.01116.38
8.2.170.0100.01022.96
8.2.160.0150.00020.52
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.23
8.2.110.0090.00020.55
8.2.100.0040.00817.84
8.2.90.0030.00519.05
8.2.80.0080.00017.97
8.2.70.0000.00817.63
8.2.60.0080.00017.80
8.2.50.0040.00418.07
8.2.40.0060.00319.72
8.2.30.0090.00019.60
8.2.20.0000.00717.47
8.2.10.0040.00417.96
8.2.00.0080.00617.56
8.1.280.0100.00325.92
8.1.270.0080.00023.66
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0090.00321.95
8.1.230.0080.00422.69
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0040.00417.23
8.1.190.0070.00317.13
8.1.180.0040.00418.10
8.1.170.0030.00618.38
8.1.160.0000.00721.98
8.1.150.0000.00718.60
8.1.140.0000.00717.24
8.1.130.0000.00717.86
8.1.120.0030.00317.39
8.1.110.0050.00217.32
8.1.100.0100.00017.34
8.1.90.0030.00517.33
8.1.80.0080.00017.38
8.1.70.0040.00417.38
8.1.60.0060.00317.51
8.1.50.0030.00517.42
8.1.40.0020.00517.48
8.1.30.0000.00817.48
8.1.20.0040.00417.49
8.1.10.0000.00817.32
8.1.00.0000.00817.36
8.0.300.0080.00020.84
8.0.290.0080.00017.05
8.0.280.0030.00318.26
8.0.270.0030.00317.18
8.0.260.0000.00717.20
8.0.250.0070.00016.92
8.0.240.0030.00316.96
8.0.230.0030.00316.94
8.0.220.0040.00416.75
8.0.210.0040.00416.78
8.0.200.0000.00716.96
8.0.190.0000.00816.88
8.0.180.0040.00416.90
8.0.170.0040.00416.87
8.0.160.0000.00716.83
8.0.150.0050.00316.79
8.0.140.0000.00816.86
8.0.130.0000.00513.29
8.0.120.0070.00016.88
8.0.110.0040.00416.89
8.0.100.0080.00016.94
8.0.90.0070.00016.88
8.0.80.0130.00316.79
8.0.70.0030.00316.74
8.0.60.0020.00516.93
8.0.50.0040.00416.66
8.0.30.0120.01317.04
8.0.20.0060.01117.40
8.0.10.0040.00416.98
8.0.00.0140.00616.65
7.4.330.0050.00015.12
7.4.320.0000.00616.47
7.4.300.0030.00316.57
7.4.290.0000.00716.64
7.4.280.0040.00416.46
7.4.270.0040.00416.63
7.4.260.0070.00016.60
7.4.250.0040.00416.59
7.4.240.0020.00616.63
7.4.230.0000.00716.36
7.4.220.0110.00616.41
7.4.210.0050.01116.61
7.4.200.0070.00016.66
7.4.190.0030.00316.42
7.4.160.0080.00816.65
7.4.150.0040.01317.40
7.4.140.0090.00917.86
7.4.130.0140.00416.66
7.4.120.0050.01116.60
7.4.110.0120.00816.62
7.4.100.0130.00616.60
7.4.90.0030.01416.65
7.4.80.0090.00919.39
7.4.70.0140.00716.62
7.4.60.0100.01016.56
7.4.50.0000.00416.54
7.4.40.0120.00622.77
7.4.30.0130.00316.66
7.4.00.0090.00815.12
7.3.330.0050.00013.24
7.3.320.0050.00013.38
7.3.310.0050.00216.35
7.3.300.0000.00816.43
7.3.290.0060.00916.39
7.3.280.0090.01016.36
7.3.270.0070.01117.40
7.3.260.0120.01316.39
7.3.250.0080.01416.54
7.3.240.0080.00816.47
7.3.230.0150.00316.39
7.3.210.0110.00616.38
7.3.200.0100.01319.39
7.3.190.0100.01316.42
7.3.180.0070.01416.48
7.3.170.0030.01316.56
7.3.160.0090.00616.38
7.3.120.0100.00714.92
7.3.110.0070.01114.85
7.3.100.0070.01114.86
7.3.90.0120.00314.91
7.3.80.0110.00715.28
7.3.70.0070.01514.85
7.3.60.0110.00414.72
7.3.50.0040.01415.06
7.3.40.0040.01415.00
7.3.30.0030.01014.77
7.3.20.0000.01416.58
7.3.10.0030.01316.97
7.3.00.0070.01116.69
7.2.330.0140.00416.71
7.2.320.0070.01016.52
7.2.310.0140.00316.68
7.2.300.0040.01216.82
7.2.290.0100.00716.45
7.2.250.0030.01315.17
7.2.240.0090.00615.33
7.2.230.0040.01215.26
7.2.220.0040.01215.09
7.2.210.0030.01015.21
7.2.200.0080.00614.86
7.2.190.0060.00914.86
7.2.180.0060.01014.74
7.2.170.0140.00415.27
7.2.160.0070.00715.14
7.2.150.0030.01417.25
7.2.140.0090.00317.19
7.2.130.0090.00917.14
7.2.120.0090.00416.76
7.2.110.0030.00617.13
7.2.100.0000.01617.08
7.2.90.0090.00617.00
7.2.80.0030.00617.19
7.2.70.0030.01217.05
7.2.60.0000.01417.14
7.2.50.0030.00717.11
7.2.40.0070.00716.85
7.2.30.0060.00917.07
7.2.20.0000.01417.21
7.2.10.0030.01017.02
7.2.00.0030.01418.32
7.1.330.0120.00615.59
7.1.320.0060.01315.83
7.1.310.0070.01015.78
7.1.300.0060.00915.83
7.1.290.0110.00415.67
7.1.280.0000.01115.99
7.1.270.0140.00015.66
7.1.260.0030.01115.91
7.1.250.0120.00015.80
7.1.240.0070.00715.82
7.1.230.0030.00715.97
7.1.220.0000.01015.70
7.1.210.0000.01015.95
7.1.200.0060.00315.88
7.1.190.0060.00915.92
7.1.180.0080.00615.82
7.1.170.0000.01416.06
7.1.160.0040.00815.74
7.1.150.0070.00715.77
7.1.140.0080.00415.94
7.1.130.0000.01315.84
7.1.120.0000.00915.85
7.1.110.0000.01216.02
7.1.100.0020.01116.92
7.1.90.0030.01015.69
7.1.80.0070.00715.63
7.1.70.0040.00616.45
7.1.60.0070.01217.65
7.1.50.0140.00925.13
7.1.40.0000.01715.63
7.1.30.0080.00415.81
7.1.20.0040.00815.77
7.1.10.0030.00615.68
7.1.00.0050.03819.05
7.0.330.0080.00515.28
7.0.320.0070.00715.50
7.0.310.0040.00815.55
7.0.300.0060.00615.46
7.0.290.0030.01015.18
7.0.280.0040.00815.34
7.0.270.0000.01515.19
7.0.260.0060.00615.24
7.0.250.0040.00815.66
7.0.240.0000.01215.67
7.0.230.0030.00715.56
7.0.220.0080.00315.54
7.0.210.0070.00715.27
7.0.200.0050.00716.16
7.0.190.0090.00915.56
7.0.180.0060.01015.56
7.0.170.0030.00715.51
7.0.160.0030.01015.30
7.0.150.0100.00315.55
7.0.140.0100.03518.69
7.0.130.0030.00915.46
7.0.120.0080.00315.38
7.0.110.0100.00315.55
7.0.100.0100.00315.58
7.0.90.0040.00915.53
7.0.80.0000.00915.41
7.0.70.0070.00715.57
7.0.60.0080.04317.72
7.0.50.0080.02616.75
7.0.40.0050.03216.89
7.0.30.0150.02816.86
7.0.20.0130.03116.79
7.0.10.0120.04516.84
7.0.00.0080.04516.84
5.6.400.0040.01114.36
5.6.390.0080.00414.33
5.6.380.0000.01414.28
5.6.370.0030.01214.53
5.6.360.0040.01114.59
5.6.350.0030.01014.43
5.6.340.0040.00414.53
5.6.330.0090.00613.98
5.6.320.0040.00714.48
5.6.310.0120.00314.43
5.6.300.0090.00614.79
5.6.290.0120.00314.43
5.6.280.0030.04317.91
5.6.270.0100.00314.61
5.6.260.0060.00914.54
5.6.250.0110.00414.59
5.6.240.0030.01014.61
5.6.230.0030.00614.43
5.6.220.0100.00614.52
5.6.210.0060.03817.61
5.6.200.0050.03316.42
5.6.190.0030.02917.47
5.6.180.0140.04517.37
5.6.170.0180.04117.39
5.6.160.0120.03017.43
5.6.150.0070.04216.34
5.6.140.0030.03916.38
5.6.130.0110.04216.34
5.6.120.0070.03018.02
5.6.110.0050.04317.73
5.6.100.0080.03517.79
5.6.90.0050.03317.84
5.6.80.0090.04117.41
5.6.70.0040.00814.39
5.6.60.0030.01014.31
5.6.50.0060.00914.26
5.6.40.0030.00914.62
5.6.30.0070.00714.38
5.6.20.0030.00714.33
5.6.10.0040.01114.48
5.6.00.0030.00614.32
5.5.380.0030.00714.52
5.5.370.0110.00414.56
5.5.360.0070.01014.36
5.5.350.0200.04017.33
5.5.340.0110.03016.26
5.5.330.0030.02917.43
5.5.320.0050.02517.32
5.5.310.0130.03317.53
5.5.300.0080.03516.29
5.5.290.0100.04316.15
5.5.280.0050.03017.68
5.5.270.0100.03217.62
5.5.260.0100.04317.62
5.5.250.0030.04317.37
5.5.240.0130.04117.23
5.5.230.0030.01014.40
5.5.220.0040.01114.44
5.5.210.0090.00314.46
5.5.200.0040.00814.48
5.5.190.0040.01114.23
5.5.180.0030.00614.03
5.5.170.0140.00014.23
5.5.160.0040.00714.02
5.5.150.0000.01114.28
5.5.140.0020.00914.14
5.5.130.0080.00314.41
5.5.120.0040.00414.20
5.5.110.0120.00414.45
5.5.100.0100.01014.38
5.5.90.0040.00814.28
5.5.80.0030.01013.98
5.5.70.0040.01114.21
5.5.60.0030.00914.32
5.5.50.0100.00714.52
5.5.40.0090.00314.11
5.5.30.0060.00314.48
5.5.20.0080.00414.39
5.5.10.0120.00314.47
5.5.00.0000.01214.30
5.4.450.0150.02416.31
5.4.440.0120.02216.22
5.4.430.0120.03416.31
5.4.420.0070.02816.34
5.4.410.0140.03516.21
5.4.400.0100.02016.19
5.4.390.0150.03116.04
5.4.380.0150.03016.11
5.4.370.0210.01816.18
5.4.360.0070.02616.10
5.4.350.0080.03016.22
5.4.340.0100.04415.97
5.4.330.0050.00313.13
5.4.320.0150.03216.22
5.4.310.0120.02216.16
5.4.300.0150.01816.06
5.4.290.0080.02416.11
5.4.280.0150.03316.04
5.4.270.0070.02716.14
5.4.260.0120.02716.22
5.4.250.0070.02516.14
5.4.240.0070.03016.14
5.4.230.0130.03916.00
5.4.220.0130.03816.00
5.4.210.0060.02316.18
5.4.200.0080.02016.13
5.4.190.0130.01816.09
5.4.180.0060.02516.14
5.4.170.0090.02516.17
5.4.160.0160.02316.10
5.4.150.0100.02216.10
5.4.140.0150.03414.75
5.4.130.0080.02614.75
5.4.120.0100.02114.76
5.4.110.0180.01714.87
5.4.100.0100.02314.87
5.4.90.0130.01814.82
5.4.80.0130.02014.81
5.4.70.0080.02014.72
5.4.60.0170.02514.65
5.4.50.0120.02014.72
5.4.40.0120.01814.84
5.4.30.0120.02114.73
5.4.20.0110.02514.65
5.4.10.0080.02814.76
5.4.00.0170.03214.45
5.3.290.0100.02213.93
5.3.280.0150.03113.91
5.3.270.0130.02313.87
5.3.260.0190.01913.90
5.3.250.0130.03313.88
5.3.240.0110.02013.94
5.3.230.0080.02313.83
5.3.220.0120.02813.81
5.3.210.0140.01613.85
5.3.200.0180.02013.81
5.3.190.0100.02813.85
5.3.180.0080.02213.82
5.3.170.0050.02613.88
5.3.160.0120.01913.83
5.3.150.0050.03313.85
5.3.140.0140.01813.85
5.3.130.0050.02513.86
5.3.120.0100.02513.81
5.3.110.0120.03813.85
5.3.100.0120.03213.61
5.3.90.0120.02013.70
5.3.80.0120.02113.63
5.3.70.0050.02613.55
5.3.60.0130.02013.53
5.3.50.0150.01513.50
5.3.40.0150.01813.55
5.3.30.0150.01613.61
5.3.20.0150.03413.54
5.3.10.0150.02813.36
5.3.00.0100.02613.36
5.2.170.0170.02711.39
5.2.160.0100.03311.09
5.2.150.0130.03311.08
5.2.140.0230.04711.08
5.2.130.0100.03311.20
5.2.120.0200.02011.24
5.2.110.0200.02311.04
5.2.100.0130.04011.04
5.2.90.0170.03011.06
5.2.80.0130.03011.24
5.2.70.0170.03711.34
5.2.60.0070.03311.00
5.2.50.0130.03011.19
5.2.40.0070.03710.95
5.2.30.0230.05310.96
5.2.20.0170.02310.91
5.2.10.0130.03310.96
5.2.00.0200.02310.80
5.1.60.0130.02710.14
5.1.50.0130.02310.00
5.1.40.0070.0279.98
5.1.30.0100.03010.41
5.1.20.0070.03010.45
5.1.10.0170.02010.18
5.1.00.0130.02010.18
5.0.50.0070.0208.60
5.0.40.0030.0208.43
5.0.30.0070.0308.36
5.0.20.0100.0238.28
5.0.10.0070.0238.37
5.0.00.0070.0378.28
4.4.90.0100.0108.28
4.4.80.0070.0138.28
4.4.70.0070.0138.28
4.4.60.0030.0178.28
4.4.50.0030.0208.28
4.4.40.0100.0408.28
4.4.30.0030.0278.28
4.4.20.0170.0238.28
4.4.10.0000.0238.28
4.4.00.0030.0278.28
4.3.110.0070.0178.28
4.3.100.0070.0138.28
4.3.90.0070.0138.28
4.3.80.0030.0278.28
4.3.70.0070.0138.28
4.3.60.0070.0178.28
4.3.50.0030.0178.28
4.3.40.0030.0278.28
4.3.30.0030.0138.28
4.3.20.0030.0208.28
4.3.10.0030.0178.28
4.3.00.0030.0138.28

preferences:
49.2 ms | 400 KiB | 5 Q