3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); echo 'Subject: ', mb_encode_mimeheader('Événement pré-Fêtes Panasonic', '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)
8.3.40.0120.00318.71
8.3.30.0100.00320.09
8.3.20.0040.00420.39
8.3.10.0040.00420.95
8.3.00.0070.00023.61
8.2.170.0000.01522.96
8.2.160.0100.00320.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0040.00420.93
8.2.110.0030.00619.45
8.2.100.0080.00417.72
8.2.90.0000.00819.13
8.2.80.0050.00317.97
8.2.70.0040.00417.38
8.2.60.0060.00317.91
8.2.50.0060.00318.07
8.2.40.0060.00318.21
8.2.30.0030.00319.34
8.2.20.0000.00717.46
8.2.10.0000.00817.46
8.2.00.0000.00717.59
8.1.270.0000.00723.99
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0070.00323.78
8.1.230.0070.00421.03
8.1.220.0040.00418.77
8.1.210.0090.00019.01
8.1.200.0060.00317.23
8.1.190.0050.00217.28
8.1.180.0040.00418.10
8.1.170.0000.00718.59
8.1.160.0070.00018.67
8.1.150.0030.00618.57
8.1.140.0000.00717.39
8.1.130.0000.00717.77
8.1.120.0070.00017.30
8.1.110.0000.00717.39
8.1.100.0040.00417.26
8.1.90.0000.00817.41
8.1.80.0030.00517.29
8.1.70.0000.00817.38
8.1.60.0000.00817.55
8.1.50.0040.00417.41
8.1.40.0040.00417.49
8.1.30.0000.00817.50
8.1.20.0040.00417.57
8.1.10.0050.00217.44
8.1.00.0040.00417.41
8.0.300.0080.00020.08
8.0.290.0040.00417.17
8.0.280.0050.00318.35
8.0.270.0050.00317.20
8.0.260.0030.00316.82
8.0.250.0000.00716.86
8.0.240.0030.00516.82
8.0.230.0040.00416.87
8.0.220.0030.00316.81
8.0.210.0030.00316.86
8.0.200.0030.00316.89
8.0.190.0070.00016.79
8.0.180.0050.00316.81
8.0.170.0000.00816.83
8.0.160.0030.00316.87
8.0.150.0000.00716.75
8.0.140.0000.00716.77
8.0.130.0030.00613.34
8.0.120.0040.00416.67
8.0.110.0030.00616.78
8.0.100.0040.00416.89
8.0.90.0040.00416.83
8.0.80.0060.01016.82
8.0.70.0080.00016.87
8.0.60.0000.00716.76
8.0.50.0040.00416.81
8.0.30.0120.00716.90
8.0.20.0100.00817.40
8.0.10.0000.00716.75
8.0.00.0120.00616.62
7.4.330.0000.00716.84
7.4.320.0070.00016.38
7.4.300.0000.00616.44
7.4.290.0070.00016.46
7.4.280.0070.00016.41
7.4.270.0000.00716.43
7.4.260.0060.00013.15
7.4.250.0040.00416.47
7.4.240.0020.00516.45
7.4.230.0070.00016.43
7.4.220.0120.00916.39
7.4.210.0060.01016.53
7.4.200.0000.00716.23
7.4.190.0030.00316.52
7.4.160.0030.01316.33
7.4.150.0210.01117.40
7.4.140.0060.01117.86
7.4.130.0140.00816.58
7.4.120.0090.00816.46
7.4.110.0090.00916.38
7.4.100.0100.01016.39
7.4.90.0070.01316.50
7.4.80.0070.01419.39
7.4.70.0150.00816.63
7.4.60.0140.00716.35
7.4.50.0000.00816.45
7.4.40.0040.01122.77
7.4.30.0160.00416.44
7.4.00.0070.01114.99
7.3.330.0060.00013.04
7.3.320.0030.00312.91
7.3.310.0070.00016.28
7.3.300.0000.00816.09
7.3.290.0070.00716.16
7.3.280.0120.00616.21
7.3.270.0130.00617.40
7.3.260.0150.00918.24
7.3.250.0050.01316.36
7.3.240.0060.01716.14
7.3.230.0090.00916.53
7.3.210.0120.00616.25
7.3.200.0100.00719.39
7.3.190.0100.01016.39
7.3.180.0060.01016.26
7.3.170.0120.00416.27
7.3.160.0150.00416.23
7.3.120.0100.00614.68
7.3.110.0050.01114.71
7.3.100.0020.01214.77
7.3.90.0030.00814.78
7.3.80.0070.01114.69
7.3.70.0050.01114.76
7.3.60.0030.01214.53
7.3.50.0050.01014.81
7.3.40.0050.00814.55
7.3.30.0050.00714.62
7.3.20.0060.00816.66
7.3.10.0070.00716.42
7.3.00.0080.01016.56
7.2.330.0140.00416.38
7.2.320.0070.01016.53
7.2.310.0140.00716.29
7.2.300.0120.00916.46
7.2.290.0060.01016.50
7.2.250.0060.01215.02
7.2.240.0070.01014.75
7.2.230.0070.00714.85
7.2.220.0030.01115.00
7.2.210.0020.01215.01
7.2.200.0090.00314.79
7.2.190.0020.01214.91
7.2.180.0080.00514.78
7.2.170.0070.00714.98
7.2.160.0040.00814.96
7.2.150.0040.01016.95
7.2.140.0050.01116.71
7.2.130.0090.00716.83
7.2.120.0080.00616.84
7.2.110.0050.00716.95
7.2.100.0050.01016.68
7.2.90.0080.00416.64
7.2.80.0070.01116.76
7.2.70.0020.01316.90
7.2.60.0060.00916.96
7.2.50.0030.01116.77
7.2.40.0050.01116.77
7.2.30.0100.00516.67
7.2.20.0070.00416.82
7.2.10.0070.01016.62
7.2.00.0050.01017.56
7.1.330.0040.01215.81
7.1.320.0060.00815.68
7.1.310.0070.00815.73
7.1.300.0050.00715.74
7.1.290.0070.00715.72
7.1.280.0050.00715.75
7.1.270.0080.00515.49
7.1.260.0050.00515.54
7.1.250.0050.00615.53
7.1.240.0100.01015.63
7.1.230.0000.01615.72
7.1.220.0090.00615.82
7.1.210.0030.01015.72
7.1.200.0080.00415.80
7.1.190.0080.00315.50
7.1.180.0000.01215.79
7.1.170.0070.00715.72
7.1.160.0100.00715.78
7.1.150.0070.00415.57
7.1.140.0070.00715.77
7.1.130.0080.00515.76
7.1.120.0060.00615.78
7.1.110.0060.00615.58
7.1.100.0040.00916.75
7.1.90.0030.01315.44
7.1.80.0060.00315.49
7.1.70.0040.00816.29
7.1.60.0050.01117.41
7.1.50.0050.01316.13
7.1.40.0000.01215.50
7.1.30.0000.01215.78
7.1.20.0030.01015.66
7.1.10.0080.00015.50
7.1.00.0060.03419.15
7.0.330.0040.00815.12
7.0.320.0000.01415.08
7.0.310.0070.00715.43
7.0.300.0060.00315.48
7.0.290.0100.01015.28
7.0.280.0110.00715.41
7.0.270.0000.01415.48
7.0.260.0060.00615.09
7.0.250.0090.00315.18
7.0.240.0030.01015.53
7.0.230.0070.00415.33
7.0.220.0000.00815.38
7.0.210.0090.00315.29
7.0.200.0020.00715.94
7.0.190.0030.00615.34
7.0.180.0030.00915.27
7.0.170.0040.00815.42
7.0.160.0080.00015.49
7.0.150.0040.00715.50
7.0.140.0080.03618.73
7.0.130.0080.00815.14
7.0.120.0100.00315.20
7.0.110.0030.00615.36
7.0.100.0040.00715.18
7.0.90.0100.00315.25
7.0.80.0040.00415.05
7.0.70.0030.00915.29
7.0.60.0030.04317.43
7.0.50.0060.03216.71
7.0.40.0070.04916.74
7.0.30.0180.02816.65
7.0.20.0170.02316.78
7.0.10.0200.04216.89
7.0.00.0050.03516.88
5.6.400.0030.00714.19
5.6.390.0000.01513.95
5.6.380.0070.01014.38
5.6.370.0070.00714.18
5.6.360.0000.01614.53
5.6.350.0040.00714.27
5.6.340.0070.00314.48
5.6.330.0000.01414.11
5.6.320.0040.00814.18
5.6.310.0050.00514.45
5.6.300.0030.01014.33
5.6.290.0040.00814.16
5.6.280.0030.04217.69
5.6.270.0090.00613.98
5.6.260.0030.00814.42
5.6.250.0040.01113.91
5.6.240.0110.00014.15
5.6.230.0060.00614.45
5.6.220.0080.00414.53
5.6.210.0050.04417.29
5.6.200.0020.05316.27
5.6.190.0080.02317.24
5.6.180.0180.02517.36
5.6.170.0150.02817.25
5.6.160.0040.02517.34
5.6.150.0070.04216.15
5.6.140.0100.04316.36
5.6.130.0050.03816.13
5.6.120.0120.04017.72
5.6.110.0070.04417.61
5.6.100.0030.05117.65
5.6.90.0070.03217.50
5.6.80.0050.04117.23
5.6.70.2220.02317.43
5.6.60.0070.00714.32
5.6.50.0110.00314.23
5.6.40.0060.00914.30
5.6.30.0040.01114.29
5.6.20.0070.01013.99
5.6.10.0000.01414.30
5.6.00.0070.00414.02
5.5.380.0090.00314.08
5.5.370.0120.00014.28
5.5.360.0040.00514.28
5.5.350.0120.03717.36
5.5.340.0080.04215.92
5.5.330.0100.02517.17
5.5.320.0190.02817.29
5.5.310.0130.03417.28
5.5.300.0030.02615.94
5.5.290.0030.03015.98
5.5.280.0070.02317.38
5.5.270.0100.04317.53
5.5.260.0060.02517.47
5.5.250.0070.03717.42
5.5.240.0050.02517.13
5.5.230.0120.00314.18
5.5.220.0040.01113.90
5.5.210.0030.00713.81
5.5.200.0050.00514.05
5.5.190.0000.01514.07
5.5.180.0060.00613.95
5.5.170.0040.00813.75
5.5.160.0100.00313.66
5.5.150.0080.00013.99
5.5.140.0030.00614.21
5.5.130.0070.00314.14
5.5.120.0100.00414.40
5.5.110.0100.00713.96
5.5.100.0080.00413.88
5.5.90.0090.00614.17
5.5.80.0040.00813.89
5.5.70.0070.00714.16
5.5.60.0070.00714.09
5.5.50.0070.01314.30
5.5.40.0030.01314.01
5.5.30.0080.00613.89
5.5.20.0090.00014.05
5.5.10.0070.00714.04
5.5.00.0070.00714.02
5.4.450.0150.02315.39
5.4.440.0130.02015.31
5.4.430.0120.02715.34
5.4.420.0110.03315.39
5.4.410.0130.02415.11
5.4.400.0110.02615.23
5.4.390.0130.01815.07
5.4.380.0150.03715.14
5.4.370.0110.02615.15
5.4.360.0140.03215.15
5.4.350.0150.03115.01
5.4.340.0170.02915.07
5.4.330.0000.01011.21
5.4.320.0120.03615.15
5.4.310.0080.03315.22
5.4.300.0180.03115.18
5.4.290.0140.02315.23
5.4.280.0190.02615.21
5.4.270.0120.04015.15
5.4.260.0200.03715.01
5.4.250.0180.03015.21
5.4.240.0120.04115.07
5.4.230.0150.02015.14
5.4.220.0220.02915.06
5.4.210.0210.03615.04
5.4.200.0150.04015.14
5.4.190.0150.02815.00
5.4.180.0180.03814.99
5.4.170.0130.04115.12
5.4.160.0150.04015.13
5.4.150.0160.03515.22
5.4.140.0180.03313.68
5.4.130.0150.04013.74
5.4.120.0170.03513.71
5.4.110.0100.03013.83
5.4.100.0120.02913.68
5.4.90.0150.03713.71
5.4.80.0190.03113.83
5.4.70.0150.03513.80
5.4.60.0150.03013.83
5.4.50.0110.02713.62
5.4.40.0170.03413.82
5.4.30.0130.02213.80
5.4.20.0130.03213.76
5.4.10.0120.03313.74
5.4.00.0150.02713.46
5.3.290.0140.03012.89
5.3.280.0150.03512.81
5.3.270.0120.02912.88
5.3.260.0180.02512.83
5.3.250.0150.03912.83
5.3.240.0180.02712.84
5.3.230.0130.04012.88
5.3.220.0150.03712.88
5.3.210.0230.02812.85
5.3.200.0120.04012.82
5.3.190.0150.02512.81
5.3.180.0190.03512.82
5.3.170.0120.02412.80
5.3.160.0160.03612.85
5.3.150.0120.04112.81
5.3.140.0140.03912.81
5.3.130.0100.02512.83
5.3.120.0160.02712.89
5.3.110.0120.02812.80
5.3.100.0120.02612.60
5.3.90.0130.02312.54
5.3.80.0140.01812.66
5.3.70.0150.02312.58
5.3.60.0090.02112.53
5.3.50.0080.02312.50
5.3.40.0130.01712.57
5.3.30.0150.04012.60
5.3.20.0130.02512.34
5.3.10.0120.02912.41
5.3.00.0190.02512.40
5.2.170.0200.05711.18
5.2.160.0200.04011.08
5.2.150.0130.04311.16
5.2.140.0200.06011.00
5.2.130.0230.04011.14
5.2.120.0230.05711.15
5.2.110.0230.05011.04
5.2.100.0170.04011.12
5.2.90.0100.03311.01
5.2.80.0200.06010.92
5.2.70.0100.03711.14
5.2.60.0230.04010.90
5.2.50.0200.02710.87
5.2.40.0170.03310.88
5.2.30.0130.04010.85
5.2.20.0170.05710.86
5.2.10.0130.04710.83
5.2.00.0170.05010.82
5.1.60.0170.05310.04
5.1.50.0130.0379.89
5.1.40.0130.0509.90
5.1.30.0170.06010.30
5.1.20.0170.05310.47
5.1.10.0300.02310.11
5.1.00.0100.03010.18
5.0.50.0100.0209.53
5.0.40.0170.0339.53
5.0.30.0130.0379.53
5.0.20.0100.0209.53
5.0.10.0100.0409.53
5.0.00.0100.0379.53
4.4.90.0070.0339.53
4.4.80.0100.0209.53
4.4.70.0130.0339.53
4.4.60.0130.0309.53
4.4.50.0100.0379.53
4.4.40.0130.0339.53
4.4.30.0100.0179.53
4.4.20.0170.0239.53
4.4.10.0070.0309.53
4.4.00.0130.0479.53
4.3.110.0100.0309.53
4.3.100.0100.0339.53
4.3.90.0070.0179.53
4.3.80.0070.0339.53
4.3.70.0070.0209.53
4.3.60.0030.0209.53
4.3.50.0070.0379.53
4.3.40.0130.0439.53
4.3.30.0070.0309.53
4.3.20.0030.0409.53
4.3.10.0030.0209.53
4.3.00.0030.0179.53

preferences:
52.12 ms | 400 KiB | 5 Q