3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); echo 'Subject: ', mb_encode_mimeheader('Idées-cadeaux signées 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)
8.3.60.0100.00718.16
8.3.50.0130.00221.21
8.3.40.0070.00718.76
8.3.30.0070.00720.35
8.3.20.0040.00420.25
8.3.10.0040.00421.14
8.3.00.0050.00322.32
8.2.180.0140.00416.38
8.2.170.0150.00022.96
8.2.160.0070.01022.29
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0060.00320.63
8.2.110.0090.00019.03
8.2.100.0080.00417.66
8.2.90.0000.00919.28
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0100.00017.91
8.2.50.0100.00018.07
8.2.40.0000.00818.21
8.2.30.0000.00719.48
8.2.20.0000.00817.46
8.2.10.0040.00417.48
8.2.00.0000.00717.54
8.1.280.0120.00325.92
8.1.270.0080.00023.99
8.1.260.0130.00326.35
8.1.250.0130.00728.09
8.1.240.0060.00322.51
8.1.230.0070.00420.89
8.1.220.0040.00418.77
8.1.210.0000.00819.04
8.1.200.0060.00317.36
8.1.190.0050.00317.16
8.1.180.0000.00818.10
8.1.170.0050.00318.66
8.1.160.0040.00418.82
8.1.150.0030.00618.51
8.1.140.0000.00717.25
8.1.130.0000.00717.80
8.1.120.0000.00717.37
8.1.110.0000.00717.34
8.1.100.0000.00817.28
8.1.90.0070.00017.40
8.1.80.0040.00417.24
8.1.70.0070.00017.39
8.1.60.0020.00517.47
8.1.50.0040.00417.53
8.1.40.0000.00717.33
8.1.30.0030.00617.61
8.1.20.0030.00517.46
8.1.10.0000.00817.53
8.1.00.0080.00017.49
8.0.300.0000.00719.84
8.0.290.0040.00417.05
8.0.280.0000.00718.49
8.0.270.0030.00317.17
8.0.260.0040.00418.53
8.0.250.0050.00316.96
8.0.240.0040.00416.98
8.0.230.0030.00316.93
8.0.220.0070.00016.75
8.0.210.0030.00316.81
8.0.200.0040.00416.86
8.0.190.0040.00416.89
8.0.180.0070.00016.74
8.0.170.0000.00716.73
8.0.160.0070.00016.71
8.0.150.0050.00316.81
8.0.140.0040.00416.64
8.0.130.0090.00013.21
8.0.120.0020.00516.90
8.0.110.0000.00716.67
8.0.100.0080.00016.88
8.0.90.0000.00716.78
8.0.80.0040.01716.72
8.0.70.0000.00716.82
8.0.60.0050.00216.79
8.0.50.0040.00416.62
8.0.30.0130.00617.06
8.0.20.0080.01017.40
8.0.10.0000.00816.67
8.0.00.0080.01316.75
7.4.330.0000.00516.67
7.4.320.0000.00616.41
7.4.300.0000.00716.44
7.4.290.0030.00316.48
7.4.280.0030.00316.28
7.4.270.0030.00316.44
7.4.260.0000.00513.21
7.4.250.0040.00416.41
7.4.240.0060.00116.45
7.4.230.0000.00716.63
7.4.220.0090.00916.41
7.4.210.0090.00816.59
7.4.200.0030.00316.60
7.4.190.0030.00316.68
7.4.160.0120.00316.35
7.4.150.0070.01017.40
7.4.140.0100.00717.86
7.4.130.0080.01016.44
7.4.120.0100.00716.32
7.4.110.0150.00316.60
7.4.100.0070.01316.61
7.4.90.0060.00916.23
7.4.80.0140.00519.39
7.4.70.0070.00916.38
7.4.60.0090.00916.36
7.4.50.0050.00316.11
7.4.40.0040.01122.77
7.4.30.0090.00616.43
7.4.00.0100.00414.90
7.3.330.0050.00013.00
7.3.320.0050.00013.06
7.3.310.0050.00316.27
7.3.300.0040.00416.20
7.3.290.0040.01516.21
7.3.280.0080.01016.23
7.3.270.0160.00017.40
7.3.260.0150.00418.24
7.3.250.0090.00916.45
7.3.240.0060.01516.28
7.3.230.0080.00816.39
7.3.210.0060.01216.24
7.3.200.0190.00319.39
7.3.190.0090.01216.29
7.3.180.0000.01616.07
7.3.170.0080.00816.51
7.3.160.0110.00816.30
7.3.120.0070.00914.87
7.3.110.0000.01214.91
7.3.100.0030.00914.74
7.3.90.0130.00614.73
7.3.80.0090.00014.57
7.3.70.0110.00414.82
7.3.60.0040.00814.75
7.3.50.0110.00414.75
7.3.40.0090.00614.56
7.3.30.0030.00814.78
7.3.20.0060.00316.49
7.3.10.0040.00716.34
7.3.00.0070.00716.43
7.2.330.0070.01116.31
7.2.320.0130.00916.29
7.2.310.0110.01016.38
7.2.300.0060.00916.44
7.2.290.0030.01216.23
7.2.250.0030.01415.09
7.2.240.0100.01014.70
7.2.230.0070.01014.72
7.2.220.0060.01314.96
7.2.210.0030.01414.60
7.2.200.0060.01014.91
7.2.190.0100.00314.87
7.2.180.0060.00614.91
7.2.170.0070.00714.75
7.2.60.0060.00916.91
7.2.00.0090.00619.21
7.1.330.0100.00315.89
7.1.320.0060.01215.70
7.1.310.0060.01215.89
7.1.300.0080.00415.68
7.1.290.0130.00015.71
7.1.280.0030.00615.68
7.1.270.0090.00615.68
7.1.260.0090.00615.60
7.1.200.0090.00615.88
7.1.100.0000.00917.99
7.1.70.0040.00417.10
7.1.60.0090.00619.17
7.1.50.0100.01416.86
7.1.00.0000.03722.35
7.0.200.0050.00316.79
7.0.140.0100.06322.15
7.0.60.0030.06320.07
7.0.50.0070.03717.89
7.0.40.0100.08720.27
7.0.30.0670.06020.13
7.0.20.0270.04020.17
7.0.10.0330.07320.09
7.0.00.0000.04320.00
5.6.280.0030.07321.09
5.6.210.0030.05320.55
5.6.200.0030.08718.09
5.6.190.0070.04720.27
5.6.180.0100.08320.40
5.6.170.0430.05720.53
5.6.160.0070.06020.44
5.6.150.0030.08318.16
5.6.140.0030.07718.20
5.6.130.0100.06718.07
5.6.120.0100.03721.11
5.6.110.0030.04320.88
5.6.100.0000.09320.96
5.6.90.0100.03321.01
5.6.80.0030.07020.27
5.6.70.0170.07720.36
5.5.350.0270.05320.46
5.5.340.0100.08018.01
5.5.330.0100.08320.21
5.5.320.0030.08320.57
5.5.310.0300.07320.29
5.5.300.0100.07717.98
5.5.290.0130.07317.87
5.5.280.0130.04320.86
5.5.270.0130.06720.75
5.5.260.0130.07320.95
5.5.250.0170.06320.57
5.5.240.0070.05720.06
5.4.450.0230.04019.13
5.4.440.0200.04019.12
5.4.430.0230.04719.45
5.4.420.0200.03719.20
5.4.410.0200.04319.41
5.4.400.0270.06719.25
5.4.390.0200.03719.08
5.4.380.0230.04319.25
5.4.370.0270.04718.91
5.4.360.0230.03718.80
5.4.350.0230.04719.13
5.4.340.0230.04018.89
5.4.320.0270.06318.80
5.4.310.0200.03718.80
5.4.300.0300.07719.24
5.4.290.0270.07318.91
5.4.280.0230.06019.13
5.4.270.0270.07018.88
5.4.260.0170.04318.80
5.4.250.0270.06319.09
5.4.240.0100.04019.23
5.4.230.0230.06318.79
5.4.220.0230.05019.07
5.4.210.0230.04719.08
5.4.200.0200.03719.15
5.4.190.0170.06319.12
5.4.180.0230.06318.76
5.4.170.0200.04719.05
5.4.160.0270.04018.77
5.4.150.0130.04719.07
5.4.140.0200.04716.34
5.4.130.0270.04716.27
5.4.120.0370.06316.52
5.4.110.0200.04716.21
5.4.100.0200.07716.30
5.4.90.0230.04316.27
5.4.80.0300.04716.41
5.4.70.0330.05716.37
5.4.60.0170.04316.46
5.4.50.0300.06316.27
5.4.40.0200.04716.48
5.4.30.0330.06316.39
5.4.20.0230.07016.45
5.4.10.0300.05016.46
5.4.00.0230.03315.61
5.3.290.0230.08314.61
5.3.280.0230.07714.43
5.3.270.0230.05714.45
5.3.260.0270.05014.69
5.3.250.0200.04714.54
5.3.240.0200.03714.55
5.3.230.0230.07314.42
5.3.220.0270.06714.47
5.3.210.0330.06714.47
5.3.200.0370.06014.42
5.3.190.0330.06714.50
5.3.180.0300.04014.40
5.3.170.0330.03714.61
5.3.160.0300.06714.39
5.3.150.0300.05314.41
5.3.140.0330.06714.39
5.3.130.0300.04714.49
5.3.120.0230.07014.48
5.3.110.0230.05714.47
5.3.100.0270.03314.00
5.3.90.0230.05313.96
5.3.80.0300.06713.93
5.3.70.0270.03314.06
5.3.60.0130.03713.86
5.3.50.0130.05713.85
5.3.40.0230.06313.82
5.3.30.0100.07313.88
5.3.20.0000.04313.79
5.3.10.0000.04013.51
5.3.00.1930.04013.49
5.2.170.1870.03710.98
5.2.160.2000.03711.10
5.2.150.2100.04011.19
5.2.140.1730.04011.10
5.2.130.1730.03311.04
5.2.120.1800.03010.94
5.2.110.1930.03311.25
5.2.100.1600.03010.94
5.2.90.1570.03011.14
5.2.80.0900.03310.92
5.2.70.0030.06311.03
5.2.60.0000.03710.88
5.2.50.0500.02711.06
5.2.40.1500.03310.89
5.2.30.1430.02711.01
5.2.20.1230.03010.80
5.2.10.1370.01710.97
5.2.00.1400.02010.62
5.1.60.1470.0279.97
5.1.50.1300.0239.93
5.1.40.1200.0279.89
5.1.30.1330.02310.25
5.1.20.1470.03010.43
5.1.10.1300.0279.98
5.1.00.1400.0379.94
5.0.50.0830.0308.44
5.0.40.0700.0238.30
5.0.30.0030.0338.14
5.0.20.0070.0138.11
5.0.10.0000.0238.21
5.0.00.0030.0308.38
4.4.90.0070.0308.11
4.4.80.0030.0178.11
4.4.70.0000.0178.11
4.4.60.0000.0178.11
4.4.50.0500.0238.11
4.4.40.0670.0238.11
4.4.30.0700.0178.11
4.4.20.0830.0138.11
4.4.10.0670.0138.11
4.4.00.0770.0308.11
4.3.110.0630.0178.11
4.3.100.0770.0178.11
4.3.90.0630.0138.11
4.3.80.0670.0208.11
4.3.70.0630.0138.11
4.3.60.0730.0108.11
4.3.50.0670.0208.11
4.3.40.0670.0238.11
4.3.30.0470.0308.11
4.3.20.0500.0278.11
4.3.10.0400.0208.11
4.3.00.0330.0178.11

preferences:
62.41 ms | 401 KiB | 5 Q