3v4l.org

run code in 300+ PHP versions simultaneously
<?php function encode($str) { $str = mb_convert_encoding($str , 'UTF-32', 'UTF-8'); //big endian $split = str_split($str, 4); $res = ""; foreach ($split as $c) { $cur = 0; for ($i = 0; $i < 4; $i++) { $cur |= ord($c[$i]) << (8*(3 - $i)); } $res .= "&#" . $cur . ";"; } return $res; } echo encode("mailto:liisa@finnanimation.fi");

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)
8.3.60.0100.00318.48
8.3.50.0080.01221.90
8.3.40.0070.01018.93
8.3.30.0190.00019.07
8.3.20.0050.00220.25
8.3.10.0060.00320.65
8.3.00.0050.00319.38
8.2.180.0180.00016.75
8.2.170.0120.00322.96
8.2.160.0140.00020.52
8.2.150.0030.00524.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0000.00720.90
8.2.110.0060.00322.16
8.2.100.0040.00717.84
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0030.00517.75
8.2.60.0030.01018.03
8.2.50.0040.00418.07
8.2.40.0050.00318.28
8.2.30.0040.00418.25
8.2.20.0040.00417.67
8.2.10.0060.00318.11
8.2.00.0090.00017.86
8.1.280.0140.00025.92
8.1.270.0040.00423.82
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00823.73
8.1.230.0070.00719.22
8.1.220.0080.00017.75
8.1.210.0050.00318.77
8.1.200.0030.00617.48
8.1.190.0080.00017.23
8.1.180.0000.00718.10
8.1.170.0030.00618.52
8.1.160.0040.00422.12
8.1.150.0040.00418.87
8.1.140.0040.00417.57
8.1.130.0000.00717.74
8.1.120.0000.00717.54
8.1.110.0030.00517.53
8.1.100.0000.00717.52
8.1.90.0100.00017.41
8.1.80.0040.00317.42
8.1.70.0000.00717.50
8.1.60.0080.00417.65
8.1.50.0030.00617.63
8.1.40.0000.00817.61
8.1.30.0060.00317.59
8.1.20.0030.00517.66
8.1.10.0030.00617.55
8.1.00.0040.00417.59
8.0.300.0070.00018.77
8.0.290.0040.00416.88
8.0.280.0000.00718.43
8.0.270.0070.00017.29
8.0.260.0060.00017.33
8.0.250.0000.00717.04
8.0.240.0040.00417.04
8.0.230.0030.00317.08
8.0.220.0030.00316.87
8.0.210.0030.00316.98
8.0.200.0040.00416.95
8.0.190.0030.00517.06
8.0.180.0040.00416.98
8.0.170.0040.00417.05
8.0.160.0000.00716.86
8.0.150.0070.00016.88
8.0.140.0050.00316.93
8.0.130.0060.00013.40
8.0.120.0030.00516.91
8.0.110.0000.00716.89
8.0.100.0000.00716.79
8.0.90.0000.00716.86
8.0.80.0110.00316.97
8.0.70.0070.00016.82
8.0.60.0000.00717.00
8.0.50.0000.00716.94
8.0.30.0090.01316.92
8.0.20.0110.01017.40
8.0.10.0000.00717.03
8.0.00.0160.00316.90
7.4.330.0000.00515.21
7.4.320.0000.00616.69
7.4.300.0070.00016.54
7.4.290.0080.00316.66
7.4.280.0040.00416.50
7.4.270.0030.00316.67
7.4.260.0030.00316.55
7.4.250.0040.00416.55
7.4.240.0020.00616.58
7.4.230.0040.00416.42
7.4.220.0100.00916.54
7.4.210.0090.00616.63
7.4.200.0040.00416.76
7.4.160.0100.00616.51
7.4.150.0090.00917.40
7.4.140.0130.01017.86
7.4.130.0090.00816.53
7.4.120.0080.00916.53
7.4.110.0130.01016.42
7.4.100.0100.01016.65
7.4.90.0130.00316.61
7.4.80.0080.00819.39
7.4.70.0070.01016.63
7.4.60.0090.00716.52
7.4.50.0040.00416.57
7.4.40.0100.00716.54
7.4.30.0080.00816.50
7.4.00.0040.01115.02
7.3.330.0030.00313.38
7.3.320.0080.00013.34
7.3.310.0000.00616.36
7.3.300.0000.00716.29
7.3.290.0130.00316.39
7.3.280.0080.00816.40
7.3.270.0250.00017.40
7.3.260.0130.01016.42
7.3.250.0120.00816.65
7.3.240.0060.01016.27
7.3.230.0090.01516.39
7.3.210.0090.00916.31
7.3.200.0100.01019.39
7.3.190.0040.01516.55
7.3.180.0070.01416.38
7.3.170.0080.00816.58
7.3.160.0060.00916.62
7.3.120.0070.01114.98
7.3.110.0090.00414.96
7.3.100.0030.01314.93
7.3.90.0070.00714.55
7.3.80.0060.01014.89
7.3.70.0080.00814.82
7.3.60.0030.00614.96
7.3.50.0070.00714.80
7.3.40.0090.00314.54
7.3.30.0000.01314.95
7.3.20.0030.01016.88
7.3.10.0060.00916.49
7.3.00.0030.01316.73
7.2.330.0040.01416.90
7.2.320.0080.00816.48
7.2.310.0100.00716.42
7.2.300.0040.01216.56
7.2.290.0040.01416.70
7.2.250.0030.01415.13
7.2.240.0030.01615.02
7.2.230.0000.01714.84
7.2.220.0070.01015.14
7.2.210.0100.00015.26
7.2.200.0070.01015.16
7.2.190.0040.01114.91
7.2.180.0030.01015.21
7.2.170.0070.00715.09
7.2.00.0000.01219.45
7.1.330.0080.00816.02
7.1.320.0060.00315.81
7.1.310.0100.00315.68
7.1.300.0100.00315.76
7.1.290.0030.00915.54
7.1.280.0060.01015.66
7.1.270.0030.00616.00
7.1.260.0070.00715.85
7.1.100.0030.00917.79
7.1.70.0030.00617.29
7.1.60.0140.01019.32
7.1.50.0070.01117.10
7.1.00.0070.07022.47
7.0.200.0030.00516.79
7.0.140.0130.06022.09
7.0.60.0070.08019.82
7.0.50.0100.05317.87
7.0.40.0030.06320.09
7.0.30.0300.07720.07
7.0.20.0230.08020.20
7.0.10.0100.05320.15
7.0.00.0070.08720.05
5.6.280.0100.07021.03
5.6.210.0070.04720.73
5.6.200.0070.06018.12
5.6.190.0070.06720.43
5.6.180.0100.05020.60
5.6.170.0230.03720.47
5.6.160.0030.06020.54
5.6.150.0100.06318.23
5.6.140.0030.07018.17
5.6.130.0030.04318.28
5.6.120.0130.03321.14
5.6.110.0070.07321.12
5.6.100.0070.08021.01
5.6.90.0030.06321.11
5.6.80.0070.05020.43
5.6.70.0270.06720.38
5.5.350.0070.04720.50
5.5.340.0100.03718.08
5.5.330.0170.07720.40
5.5.320.0100.03320.31
5.5.310.0370.03320.27
5.5.300.0100.08318.09
5.5.290.0070.08317.92
5.5.280.0000.04320.77
5.5.270.0030.08320.65
5.5.260.0070.04020.87
5.5.250.0030.08320.70
5.5.240.0030.04020.34
5.4.450.0470.03319.41
5.4.440.0030.03319.54
5.4.430.0930.04019.54
5.4.420.0830.00019.42
5.4.410.0670.00019.35
5.4.400.0600.00019.12
5.4.390.0670.00019.04
5.4.380.0700.00019.21
5.4.370.0630.00019.06
5.4.360.0600.00019.25
5.4.350.0670.00018.98
5.4.340.0630.00019.11
5.4.320.0060.03812.51
5.4.310.0130.03512.50
5.4.300.0110.03412.51
5.4.290.0080.03612.50
5.4.280.0100.04312.40
5.4.270.0100.03612.40
5.4.260.0060.03712.40
5.4.250.0080.03612.40
5.4.240.0060.03612.40
5.4.230.0070.04312.39
5.4.220.0060.03912.39
5.4.210.0070.03612.39
5.4.200.0070.03712.39
5.4.190.0050.03812.39
5.4.180.0060.04412.39
5.4.170.0080.03412.39
5.4.160.0070.03812.39
5.4.150.0100.03812.39
5.4.140.0030.04012.07
5.4.130.0090.03312.06
5.4.120.0040.03712.02
5.4.110.0060.03712.02
5.4.100.0060.03712.01
5.4.90.0070.03712.01
5.4.80.0080.04312.01
5.4.70.0120.03212.01
5.4.60.0040.04212.01
5.4.50.0070.03412.01
5.4.40.0090.03212.00
5.4.30.0080.03512.00
5.4.20.0080.03511.99
5.4.10.0040.03811.99
5.4.00.0040.04211.48
5.3.290.0080.03612.80
5.3.280.0080.03812.71
5.3.270.0080.04112.72
5.3.260.0060.04312.72
5.3.250.0060.03912.72
5.3.240.0080.03512.72
5.3.230.0070.03812.70
5.3.220.0040.03912.68
5.3.210.0070.03712.68
5.3.200.0070.03612.68
5.3.190.0140.03312.68
5.3.180.0050.03712.67
5.3.170.0050.03812.67
5.3.160.0060.03712.68
5.3.150.0120.05512.67
5.3.140.0050.03912.66
5.3.130.0070.03912.66
5.3.120.0140.04312.66
5.3.110.0080.04512.66
5.3.100.0080.04212.12
5.3.90.0080.03612.10
5.3.80.0050.03712.09
5.3.70.0080.03412.09
5.3.60.0060.03612.08
5.3.50.0040.03712.02
5.3.40.0070.03612.02
5.3.30.0060.03511.98
5.3.20.0070.03511.77
5.3.10.0040.03711.73
5.3.00.0060.03611.72
5.2.170.0020.0349.22
5.2.160.0070.0289.21
5.2.150.0080.0289.22
5.2.140.0060.0299.21
5.2.130.0060.0279.17
5.2.120.0070.0359.17
5.2.110.0030.0319.18
5.2.100.0100.0359.17
5.2.90.0040.0299.18
5.2.80.0030.0319.17
5.2.70.0090.0379.17
5.2.60.0090.0389.13
5.2.50.0070.0349.09
5.2.40.0060.0329.08
5.2.30.0050.0309.05
5.2.20.0070.0279.04
5.2.10.0060.0278.95
5.2.00.0050.0298.81
5.1.60.0050.0238.09
5.1.50.0050.0248.09
5.1.40.0070.0228.07
5.1.30.0020.0288.41
5.1.20.0030.0288.43
5.1.10.0040.0268.16
5.1.00.0050.0258.16
5.0.50.0030.0226.64
5.0.40.0020.0216.50
5.0.30.0030.0386.32
5.0.20.0100.0196.28
5.0.10.0070.0236.26
5.0.00.0040.0346.25
4.4.90.0020.0164.78
4.4.80.0030.0164.75
4.4.70.0040.0144.75
4.4.60.0050.0194.75
4.4.50.0020.0204.77
4.4.40.0040.0244.71
4.4.30.0030.0154.76
4.4.20.0060.0144.85
4.4.10.0040.0164.85
4.4.00.0020.0254.76
4.3.110.0020.0164.67
4.3.100.0010.0184.67
4.3.90.0030.0154.64
4.3.80.0030.0244.59
4.3.70.0030.0164.63
4.3.60.0020.0184.63
4.3.50.0020.0184.63
4.3.40.0050.0264.54
4.3.30.0030.0173.30
4.3.20.0010.0203.27
4.3.10.0020.0163.24
4.3.00.0100.01013.59

preferences:
39.84 ms | 401 KiB | 5 Q