3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); echo 'Subject: ', mb_encode_mimeheader('“”‘’♥', 'UTF-8', 'B');

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)
8.3.60.0150.00018.30
8.3.50.0110.01021.04
8.3.40.0170.00018.80
8.3.30.0110.00718.91
8.3.20.0070.00020.16
8.3.10.0040.00420.53
8.3.00.0030.00519.13
8.2.180.0210.00016.50
8.2.170.0100.00722.96
8.2.160.0070.00720.41
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0050.00222.10
8.2.110.0060.00320.47
8.2.100.0070.00417.90
8.2.90.0050.00319.09
8.2.80.0060.00317.97
8.2.70.0060.00317.38
8.2.60.0080.00417.68
8.2.50.0000.01118.07
8.2.40.0000.00718.03
8.2.30.0050.00317.93
8.2.20.0030.00617.62
8.2.10.0000.00717.80
8.2.00.0030.00517.55
8.1.280.0140.00325.92
8.1.270.0000.00822.06
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00322.08
8.1.230.0120.00019.15
8.1.220.0040.00417.74
8.1.210.0080.00318.77
8.1.200.0100.00017.10
8.1.190.0040.00416.97
8.1.180.0090.00018.10
8.1.170.0030.00518.64
8.1.160.0000.00722.04
8.1.150.0040.00418.86
8.1.140.0040.00417.45
8.1.130.0040.00417.76
8.1.120.0040.00417.34
8.1.110.0040.00417.35
8.1.100.0030.00317.41
8.1.90.0000.00717.43
8.1.80.0000.00817.41
8.1.70.0070.00017.33
8.1.60.0000.00817.51
8.1.50.0040.00417.30
8.1.40.0040.00417.46
8.1.30.0030.00517.50
8.1.20.0040.00417.47
8.1.10.0000.00717.43
8.1.00.0000.00717.46
8.0.300.0040.00418.77
8.0.290.0000.00916.75
8.0.280.0000.00718.40
8.0.270.0030.00317.31
8.0.260.0000.00717.18
8.0.250.0000.00716.83
8.0.240.0060.00016.99
8.0.230.0030.00316.77
8.0.220.0070.00016.84
8.0.210.0030.00316.81
8.0.200.0030.00316.92
8.0.190.0000.00816.90
8.0.180.0040.00416.79
8.0.170.0060.00316.77
8.0.160.0000.00716.93
8.0.150.0000.00816.78
8.0.140.0070.00016.73
8.0.130.0030.00313.21
8.0.120.0030.00516.71
8.0.110.0040.00416.72
8.0.100.0000.00716.88
8.0.90.0000.00716.60
8.0.80.0060.00916.80
8.0.70.0050.00316.71
8.0.60.0000.00716.87
8.0.50.0000.00716.87
8.0.30.0100.01116.89
8.0.20.0090.01017.40
8.0.10.0040.00416.84
8.0.00.0120.00416.77
7.4.330.0060.00015.00
7.4.320.0080.00016.55
7.4.300.0000.00616.52
7.4.290.0060.00016.50
7.4.280.0070.00016.54
7.4.270.0080.00016.43
7.4.260.0000.00716.52
7.4.250.0000.00716.48
7.4.240.0000.00716.55
7.4.230.0000.00716.55
7.4.220.0100.01616.37
7.4.210.0120.00416.30
7.4.200.0000.00716.28
7.4.160.0050.01416.21
7.4.150.0110.01217.40
7.4.140.0110.00617.86
7.4.130.0120.01116.41
7.4.120.0140.00316.27
7.4.110.0100.00716.48
7.4.100.0070.01016.38
7.4.90.0100.00716.40
7.4.80.0210.00319.39
7.4.70.0120.00616.32
7.4.60.0100.00716.52
7.4.50.0000.00516.29
7.4.40.0060.01016.41
7.4.30.0150.00316.50
7.4.00.0050.00714.65
7.3.330.0000.00513.03
7.3.320.0060.00013.05
7.3.310.0000.00716.23
7.3.300.0060.00016.12
7.3.290.0060.01316.26
7.3.280.0060.00916.21
7.3.270.0060.01217.40
7.3.260.0170.00816.10
7.3.250.0080.00816.26
7.3.240.0100.00716.38
7.3.230.0140.00416.39
7.3.210.0110.00716.47
7.3.200.0120.01119.39
7.3.190.0100.00616.32
7.3.180.0100.00616.21
7.3.170.0110.00516.27
7.3.160.0090.00616.43
7.3.120.0090.00614.67
7.3.110.0040.01114.97
7.3.100.0030.00914.45
7.3.90.0030.01214.73
7.3.80.0030.01015.02
7.3.70.0060.00614.63
7.3.60.0040.01214.78
7.3.50.0090.00814.83
7.3.40.0090.00414.63
7.3.30.0030.00614.74
7.3.20.0060.00616.66
7.3.10.0050.00516.66
7.3.00.0030.01316.42
7.2.330.0030.01416.38
7.2.320.0070.01016.62
7.2.310.0120.00916.43
7.2.300.0030.01316.41
7.2.290.0120.01016.58
7.2.250.0060.01014.84
7.2.240.0060.01214.70
7.2.230.0030.01315.11
7.2.220.0070.00714.78
7.2.210.0090.00315.12
7.2.200.0090.00914.77
7.2.190.0110.00414.95
7.2.180.0060.00914.67
7.2.170.0030.00715.00
7.2.00.0070.01019.21
7.1.330.0070.01015.63
7.1.320.0030.00815.56
7.1.310.0000.01315.88
7.1.300.0100.00715.79
7.1.290.0070.00715.75
7.1.280.0000.01315.57
7.1.270.0000.01615.78
7.1.260.0100.00715.62
7.1.100.0090.00018.31
7.1.70.0000.00817.09
7.1.60.0040.01519.32
7.1.50.0030.01416.80
7.1.00.0000.08022.50
7.0.200.0000.01316.77
7.0.140.0030.07321.95
7.0.70.4470.03719.90
7.0.60.0030.08719.92
7.0.50.0170.07017.84
7.0.40.0100.05720.18
7.0.30.0370.04020.18
7.0.20.0730.04020.01
7.0.10.0370.05720.30
7.0.00.0170.07020.02
5.6.280.0000.07721.12
5.6.210.0130.06320.51
5.6.200.0030.07018.12
5.6.190.0100.04320.27
5.6.180.0100.04720.29
5.6.170.0200.04720.71
5.6.160.0070.08720.33
5.6.150.0070.07018.08
5.6.140.0030.08018.23
5.6.130.0030.07718.21
5.6.120.0000.09021.13
5.6.110.0170.04020.97
5.6.100.0130.07721.00
5.6.90.0100.07720.99
5.6.80.0100.07720.38
5.6.70.0100.07020.36
5.5.350.0000.04020.45
5.5.340.0070.03717.91
5.5.330.0100.08320.21
5.5.320.0100.07720.33
5.5.310.0270.07720.29
5.5.300.0070.03717.91
5.5.290.0030.07317.95
5.5.280.0000.05020.76
5.5.270.0070.05020.87
5.5.260.0070.04320.95
5.5.250.0070.07020.68
5.5.240.0070.06320.23
5.4.450.0200.07019.57
5.4.440.0230.05019.41
5.4.430.0230.04019.13
5.4.420.0300.05319.23
5.4.410.0200.05719.27
5.4.400.0170.07319.25
5.4.390.0270.05019.16
5.4.380.0230.05719.08
5.4.370.0300.06319.09
5.4.360.0230.06318.82
5.4.350.0300.07019.25
5.4.340.0230.07319.12
5.4.320.0100.06018.79
5.4.310.0370.06319.09
5.4.300.0300.04019.08
5.4.290.0230.07019.05
5.4.280.0170.07718.95
5.4.270.0170.04719.13
5.4.260.0230.05018.92
5.4.250.0300.04319.24
5.4.240.0200.05018.89
5.4.230.0200.03319.09
5.4.220.0170.04019.07
5.4.210.0230.05719.09
5.4.200.0370.03719.08
5.4.190.0200.07319.23
5.4.180.0270.07319.24
5.4.170.0200.06019.11
5.4.160.0300.07319.08
5.4.150.0330.04319.20
5.4.140.0200.04316.29
5.4.130.0230.06316.22
5.4.120.0170.03716.25
5.4.110.0130.04016.51
5.4.100.0170.04016.43
5.4.90.0200.03016.39
5.4.80.0170.03316.38
5.4.70.0130.03716.18
5.4.60.0130.03716.36
5.4.50.0100.04016.43
5.4.40.0100.04016.35
5.4.30.0130.03716.36
5.4.20.0130.03316.08
5.4.10.0100.03716.36
5.4.00.0200.02715.75
5.3.290.0230.07014.60
5.3.280.0230.04714.43
5.3.270.0230.07014.44
5.3.260.0270.06714.44
5.3.250.0300.05714.64
5.3.240.0200.04314.55
5.3.230.0270.04014.62
5.3.220.0230.03314.47
5.3.210.0100.04314.44
5.3.200.0270.02714.59
5.3.190.0100.05714.47
5.3.180.0130.03714.49
5.3.170.0200.03014.50
5.3.160.0100.04014.61
5.3.150.0100.05014.41
5.3.140.0130.03714.38
5.3.130.0230.04314.49
5.3.120.0170.03714.50
5.3.110.0100.04014.49
5.3.100.0130.04313.87
5.3.90.0100.03713.92
5.3.80.0100.03714.06
5.3.70.0170.03313.96
5.3.60.0200.03013.83
5.3.50.0100.04013.89
5.3.40.0170.03313.85
5.3.30.0130.04013.81
5.3.20.0130.03313.78
5.3.10.0130.03713.45
5.3.00.0070.04013.68
5.2.170.0130.02712.00
5.2.160.0230.02712.00
5.2.150.0130.03312.00
5.2.140.0100.03012.00
5.2.130.0130.02712.00
5.2.120.0070.03012.00
5.2.110.0170.03012.00
5.2.100.0070.03012.00
5.2.90.0070.03312.00
5.2.80.0170.02712.00
5.2.70.0130.03312.00
5.2.60.0100.03012.00
5.2.50.0130.03312.00
5.2.40.0170.02012.00
5.2.30.0070.03012.00
5.2.20.0070.03712.00
5.2.10.0100.02712.00
5.2.00.0100.03012.00
5.1.60.0100.04012.00
5.1.50.0130.03012.00
5.1.40.0070.04312.00
5.1.30.0100.05712.00
5.1.20.0070.04012.00
5.1.10.0130.04312.00
5.1.00.0170.03312.00
5.0.50.0070.04712.00
5.0.40.0070.03712.00
5.0.30.0100.05712.00
5.0.20.0130.02312.00
5.0.10.0130.03712.00
5.0.00.0070.05712.00
4.4.90.0100.01012.00
4.4.80.0130.00712.00
4.4.70.0030.01712.00
4.4.60.0070.01312.00
4.4.50.0030.01712.00
4.4.40.0070.03012.00
4.4.30.0100.02012.00
4.4.20.0030.01712.00
4.4.10.0130.03312.00
4.4.00.0130.04012.00
4.3.110.0130.02012.00
4.3.100.0070.02712.00
4.3.90.0130.03012.00
4.3.80.0100.02712.00
4.3.70.0030.03312.00
4.3.60.0130.02712.00
4.3.50.0100.02012.00
4.3.40.0030.02712.00
4.3.30.0030.01712.00
4.3.20.0030.01712.00
4.3.10.0070.01312.00
4.3.00.0030.01312.00

preferences:
51.29 ms | 401 KiB | 5 Q