3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = "My Spécial subject ❤ "; // your subject $addr = addcslashes(mb_encode_mimeheader($name, "UTF-8", "Q"), '"'); echo $addr; ?>

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)
8.5.10.0090.00616.28
8.5.00.0130.00819.71
8.4.160.0110.01123.93
8.4.150.0020.00014.05
8.4.140.0210.00917.57
8.4.130.0260.01117.88
8.4.120.0280.00918.58
8.4.110.0270.00919.25
8.4.100.0320.00517.74
8.4.90.0280.00617.90
8.4.80.0280.01018.36
8.4.70.0280.01018.06
8.4.60.0290.01118.06
8.4.50.0310.00617.94
8.4.40.0300.00817.33
8.4.30.0310.00717.63
8.4.20.0340.00618.34
8.4.10.0270.00818.07
8.3.280.0130.00918.33
8.3.270.0280.00916.42
8.3.260.0260.01017.02
8.3.250.0270.00917.04
8.3.240.0270.00716.77
8.3.230.0280.00816.49
8.3.220.0230.00916.60
8.3.210.0270.00816.44
8.3.200.0240.00716.58
8.3.190.0260.00617.28
8.3.180.0260.00717.01
8.3.170.0300.00917.78
8.3.160.0290.00916.71
8.3.150.0270.01016.60
8.3.140.0340.00516.40
8.3.130.0220.00816.47
8.3.120.0250.00617.20
8.3.110.0250.00617.96
8.3.100.0250.00817.01
8.3.90.0240.00521.56
8.3.80.0240.00719.06
8.3.70.0260.00619.52
8.3.60.0250.00819.36
8.3.50.0260.00719.31
8.3.40.0230.00720.04
8.3.30.0230.00519.93
8.3.20.0210.00421.39
8.3.10.0190.00821.52
8.3.00.0170.00721.81
8.2.290.0230.00817.94
8.2.280.0220.00817.11
8.2.270.0230.00816.84
8.2.260.0220.00616.66
8.2.250.0230.00517.22
8.2.240.0220.00617.15
8.2.230.0230.00618.58
8.2.220.0210.00718.90
8.2.210.0170.00621.56
8.2.200.0210.00519.09
8.2.190.0220.00619.08
8.2.180.0200.00821.42
8.2.170.0240.00620.25
8.2.160.0230.00521.16
8.2.150.0220.00521.86
8.2.140.0220.00521.45
8.2.130.0150.00721.94
8.2.120.0190.00520.60
8.2.110.0150.00620.94
8.2.100.0160.00719.70
8.2.90.0140.00919.81
8.2.80.0140.00819.87
8.2.70.0210.00619.84
8.2.60.0160.00719.73
8.2.50.0170.00419.84
8.2.40.0190.00419.74
8.2.30.0180.00519.75
8.2.20.0170.00519.70
8.2.10.0220.00519.78
8.2.00.0150.00519.79
8.1.330.0230.00817.95
8.1.320.0260.00316.15
8.1.310.0210.01016.32
8.1.300.0230.00616.51
8.1.290.0200.00622.43
8.1.280.0200.00821.20
8.1.270.0200.00621.24
8.1.260.0180.00921.91
8.1.250.0190.00622.22
8.1.240.0170.00420.30
8.1.230.0160.00519.83
8.1.220.0130.00819.61
8.1.210.0160.00420.28
8.1.200.0160.00619.53
8.1.190.0170.00519.40
8.1.180.0130.00819.56
8.1.170.0160.00719.72
8.1.160.0180.00619.64
8.1.150.0160.00519.94
8.1.140.0180.00619.49
8.1.130.0160.00619.61
8.1.120.0180.00419.70
8.1.110.0130.00719.65
8.1.100.0160.00519.58
8.1.90.0140.00619.57
8.1.80.0150.00619.50
8.1.70.0170.00619.65
8.1.60.0220.00419.75
8.1.50.0170.00919.72
8.1.40.0200.00519.75
8.1.30.0170.00719.78
8.1.20.0210.00519.75
8.1.10.0200.00719.75
8.1.00.0190.00519.66
8.0.300.0140.00719.33
8.0.290.0150.00719.02
8.0.280.0160.00819.21
8.0.270.0180.00519.24
8.0.260.0160.00719.19
8.0.250.0180.00619.23
8.0.240.0150.00619.22
8.0.230.0160.00619.19
8.0.220.0140.00919.21
8.0.210.0170.00619.21
8.0.200.0180.00519.23
8.0.190.0180.00419.22
8.0.180.0180.00419.18
8.0.170.0150.00819.12
8.0.160.0160.00419.22
8.0.150.0160.00619.15
8.0.140.0170.00619.14
8.0.130.0160.00619.17
8.0.120.0160.00619.21
8.0.110.0180.00419.22
8.0.100.0160.01019.08
8.0.90.0140.00619.16
8.0.80.0190.00419.12
8.0.70.0170.00619.13
8.0.60.0180.00619.14
8.0.50.0180.00419.07
8.0.30.0140.00619.21
8.0.20.0150.00619.24
8.0.10.0160.00719.25
8.0.00.0160.00520.25
7.4.330.0150.00617.98
7.4.320.0150.00518.96
7.4.300.0130.00819.22
7.4.290.0150.00719.21
7.4.280.0160.00418.96
7.4.270.0180.00519.25
7.4.260.0150.00618.93
7.4.250.0210.00419.24
7.4.240.0190.00519.26
7.4.230.0180.00718.96
7.4.220.0160.00819.20
7.4.210.0170.00719.24
7.4.200.0150.00719.30
7.4.190.0200.00519.02
7.4.180.0180.00619.26
7.4.160.0160.00819.31
7.4.150.0140.00719.28
7.4.140.0170.00619.22
7.4.130.0210.00318.88
7.4.120.0180.00718.91
7.4.110.0200.00618.54
7.4.100.0190.00918.61
7.4.90.0210.00618.49
7.4.80.0220.00518.56
7.4.70.0200.00618.55
7.4.60.0210.00518.54
7.4.50.0230.00518.54
7.4.40.0210.00518.57
7.4.30.0210.00718.63
7.4.20.0230.00518.54
7.4.10.0230.00518.58
7.4.00.0210.00419.26
7.3.330.0200.00618.80
7.3.320.0230.00718.40
7.3.310.0230.00618.48
7.3.300.0240.00618.43
7.3.290.0230.00718.44
7.3.280.0230.00618.47
7.3.270.0210.00418.69
7.3.260.0220.00518.46
7.3.250.0240.00518.42
7.3.240.0220.00418.47
7.3.230.0180.00618.36
7.3.220.0190.00318.43
7.3.210.0160.00618.30
7.3.200.0160.00518.43
7.3.190.0170.00518.45
7.3.180.0170.00418.77
7.3.170.0170.00618.35
7.3.160.0200.00318.37
7.3.150.0180.00418.33
7.3.140.0180.00618.41
7.3.130.0180.00718.78
7.3.120.0180.00418.29
7.3.110.0190.00518.37
7.3.100.0200.00418.28
7.3.90.0180.00618.61
7.3.80.0190.00518.40
7.3.70.0170.00718.49
7.3.60.0160.00619.10
7.3.50.0200.00318.52
7.3.40.0160.00418.66
7.3.30.0190.00318.75
7.3.20.0170.00419.79
7.3.10.0190.00319.72
7.3.00.0170.00419.79

preferences:
37.26 ms | 403 KiB | 5 Q