3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'V&#xe4;xj&#xf6;'; $b = utf8_encode($a); print_r($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)
8.3.60.0070.01018.31
8.3.50.0070.01421.20
8.3.40.0040.01118.66
8.3.30.0110.00320.09
8.3.20.0040.00420.35
8.3.10.0080.00022.05
8.3.00.0050.01022.39
8.2.180.0130.00616.63
8.2.170.0110.00422.96
8.2.160.0070.00720.53
8.2.150.0040.00424.18
8.2.140.0120.00624.66
8.2.130.0080.00026.16
8.2.120.0000.00819.64
8.2.110.0000.00822.10
8.2.100.0040.00719.41
8.2.90.0000.00719.05
8.2.80.0000.00719.41
8.2.70.0000.00917.63
8.2.60.0050.00317.91
8.2.50.0000.00818.07
8.2.40.0040.00418.03
8.2.30.0040.00417.94
8.2.20.0000.00717.66
8.2.10.0030.00617.86
8.2.00.0060.00317.68
8.1.280.0110.00425.92
8.1.270.0080.00020.36
8.1.260.0140.00426.35
8.1.250.0040.00428.09
8.1.240.0130.00323.83
8.1.230.0080.00319.14
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0080.00017.40
8.1.180.0060.00318.74
8.1.170.0040.00418.59
8.1.160.0070.00022.14
8.1.150.0040.00418.53
8.1.140.0040.00417.29
8.1.130.0030.00317.87
8.1.120.0020.00517.41
8.1.110.0040.00417.27
8.1.100.0040.00317.35
8.1.90.0000.00717.28
8.1.80.0000.00717.38
8.1.70.0070.00017.37
8.1.60.0000.00817.50
8.1.50.0050.00217.33
8.1.40.0000.00817.45
8.1.30.0030.00617.60
8.1.20.0060.00317.61
8.1.10.0080.00017.42
8.1.00.0080.00017.36
8.0.300.0030.00318.77
8.0.290.0000.00817.18
8.0.280.0000.00718.22
8.0.270.0030.00316.67
8.0.260.0000.00718.38
8.0.250.0000.00716.92
8.0.240.0070.00316.93
8.0.230.0000.00716.89
8.0.220.0080.00016.85
8.0.210.0070.00016.86
8.0.200.0070.00016.79
8.0.190.0040.00416.86
8.0.180.0040.00416.71
8.0.170.0000.00716.91
8.0.160.0000.00816.70
8.0.150.0000.00716.71
8.0.140.0000.01016.80
8.0.130.0030.00313.25
8.0.120.0000.00716.76
8.0.110.0040.00416.81
8.0.100.0000.00716.73
8.0.90.0000.00816.71
8.0.80.0030.01416.77
8.0.70.0040.00416.87
8.0.60.0040.00416.69
8.0.50.0000.00716.80
8.0.30.0110.00716.91
8.0.20.0150.00617.40
8.0.10.0000.00716.98
8.0.00.0130.01316.62
7.4.330.0000.00515.00
7.4.320.0060.00016.59
7.4.300.0000.00616.44
7.4.290.0000.00716.55
7.4.280.0070.00016.57
7.4.270.0070.00016.45
7.4.260.0070.00016.47
7.4.250.0040.00416.51
7.4.240.0020.00516.43
7.4.230.0050.00216.47
7.4.220.0110.00716.34
7.4.210.0090.01016.50
7.4.200.0040.00416.51
7.4.190.0030.00316.61
7.4.160.0100.00616.22
7.4.150.0140.00317.40
7.4.140.0140.00517.86
7.4.130.0120.00516.32
7.4.120.0080.00916.45
7.4.110.0160.00316.25
7.4.100.0070.01016.34
7.4.90.0160.00416.42
7.4.80.0100.01419.39
7.4.70.0070.01116.29
7.4.60.0110.01016.45
7.4.50.0000.00416.36
7.4.40.0110.00722.77
7.4.30.0080.00816.45
7.4.00.0090.00615.06
7.3.330.0020.00212.87
7.3.320.0030.00312.85
7.3.310.0030.00316.07
7.3.300.0000.00715.88
7.3.290.0090.00616.13
7.3.280.0060.01016.15
7.3.270.0000.01717.40
7.3.260.0100.01016.22
7.3.250.0120.00616.32
7.3.240.0100.00516.24
7.3.230.0100.01316.43
7.3.210.0100.00716.07
7.3.200.0030.01319.39
7.3.190.0060.01316.27
7.3.180.0120.00316.49
7.3.170.0080.00816.39
7.3.160.0040.01116.18
7.3.120.0120.00314.57
7.3.10.0080.00016.62
7.3.00.0060.00916.27
7.2.330.0180.00016.41
7.2.320.0100.00616.56
7.2.310.0130.00316.65
7.2.300.0040.01616.55
7.2.290.0080.00816.26
7.2.130.0060.00616.75
7.2.120.0040.00716.64
7.2.110.0060.00616.83
7.2.100.0030.01016.64
7.2.90.0060.00317.03
7.2.80.0000.01516.68
7.2.70.0050.00516.77
7.2.60.0060.00916.75
7.2.50.0000.01416.60
7.2.40.0090.00316.74
7.2.30.0060.00916.76
7.2.20.0040.01116.57
7.2.10.0040.00916.71
7.2.00.0080.00816.92
7.1.250.0080.00415.91
7.1.70.0070.01117.08
7.1.60.0030.00717.09
7.1.50.0160.00616.86
7.1.00.0030.07322.37
7.0.200.0100.00616.75
7.0.140.0000.07722.21
7.0.60.0070.05019.94
7.0.50.0100.06317.81
7.0.40.0200.04320.08
7.0.30.0270.03720.16
7.0.20.0270.05720.16
7.0.10.0400.07020.04
7.0.00.0030.05720.16
5.6.280.0070.07021.14
5.6.210.0030.04020.69
5.6.200.0030.08318.08
5.6.190.0030.08020.43
5.6.180.4070.04720.64
5.6.170.0300.08320.38
5.6.160.0130.08320.52
5.6.150.0030.07718.13
5.6.140.0100.03718.18
5.6.130.0070.08018.15
5.6.120.0100.06721.01
5.6.110.0100.08020.98
5.6.100.0130.07320.97
5.6.90.0130.08320.99
5.6.80.0070.08720.53
5.6.70.0230.07320.52
5.5.350.0070.03320.45
5.5.340.0070.05017.97
5.5.330.0200.06320.40
5.5.320.0070.05020.34
5.5.310.0400.05320.27
5.5.300.0100.08018.02
5.5.290.0030.07317.90
5.5.280.0070.04020.79
5.5.270.0030.08020.75
5.5.260.0030.07720.79
5.5.250.0100.03320.45
5.5.240.0030.07320.25
5.4.450.0000.04319.14
5.4.440.0030.05319.10
5.4.430.1900.04719.20
5.4.420.0100.07319.38
5.4.410.0100.07718.97
5.4.400.0870.07019.10
5.4.390.2100.04319.09
5.4.380.1930.04319.27
5.4.370.2070.04319.08
5.4.360.2000.04018.93
5.4.350.2030.04719.13
5.4.340.2000.04719.13
5.4.320.1830.04318.93
5.4.310.2030.04718.90
5.4.300.2100.03719.07
5.4.290.2000.04719.08
5.4.280.2000.04719.05
5.4.270.2070.04319.07
5.4.260.2100.04318.77
5.4.250.1770.04019.12
5.4.240.1930.04719.13
5.4.230.2030.04718.88
5.4.220.2000.03319.07
5.4.210.2030.04719.04
5.4.200.1630.04019.23
5.4.190.1730.04319.20
5.4.180.2030.04719.07
5.4.170.2100.04019.16
5.4.160.2070.04319.06
5.4.150.2000.03319.14
5.4.140.2030.05016.29
5.4.130.2000.04716.36
5.4.120.1900.03316.33
5.4.110.2000.04316.39
5.4.100.2100.04016.39
5.4.90.2000.04316.46
5.4.80.1870.03316.16
5.4.70.2030.04016.34
5.4.60.2130.03716.19
5.4.50.1970.04316.36
5.4.40.2070.04316.36
5.4.30.2030.04316.47
5.4.20.2030.04016.25
5.4.10.2030.04716.41
5.4.00.2170.03715.72
5.3.290.2170.03714.64
5.3.280.2030.04714.63
5.3.270.1870.04014.46
5.3.260.1930.03014.43
5.3.250.2100.04014.44
5.3.240.1800.04014.62
5.3.230.1870.03714.50
5.3.220.1800.04014.40
5.3.210.2130.04014.42
5.3.200.1870.03714.43
5.3.190.1970.04014.42
5.3.180.1870.03714.65
5.3.170.1970.03014.50
5.3.160.2130.04314.54
5.3.150.1770.04314.41
5.3.140.2130.04314.48
5.3.130.1900.04014.55
5.3.120.2230.03714.39
5.3.110.2070.03314.48
5.3.100.2070.03713.87
5.3.90.2130.03314.06
5.3.80.2430.04314.03
5.3.70.1970.04013.89
5.3.60.0800.04714.05
5.3.50.0070.05713.72
5.3.40.0100.06713.96
5.3.30.1530.04013.89
5.3.20.1930.03713.65
5.3.10.2070.04313.59
5.3.00.1870.02313.73
5.2.170.1630.03311.08
5.2.160.1700.03311.05
5.2.150.1570.02711.19
5.2.140.1730.02711.00
5.2.130.1700.03311.15
5.2.120.1730.03310.96
5.2.110.1700.03711.10
5.2.100.1630.02711.11
5.2.90.1670.03011.00
5.2.80.1400.03010.95
5.2.70.1770.03310.92
5.2.60.1700.03311.20
5.2.50.1470.02710.87
5.2.40.0530.04010.87
5.2.30.0100.05310.82
5.2.20.0100.05010.89
5.2.10.0030.04010.93
5.2.00.0030.03310.57
5.1.60.0830.0439.88
5.1.50.1270.0279.86
5.1.40.1500.0309.84
5.1.30.1500.03010.20
5.1.20.1500.03310.50
5.1.10.1500.0279.90
5.1.00.1570.02010.04
5.0.50.0800.0308.80
5.0.40.0700.0238.80
5.0.30.0730.0438.80
5.0.20.0800.0238.80
5.0.10.0870.0278.80
5.0.00.0770.0408.80
4.4.90.0670.0178.80
4.4.80.0630.0178.80
4.4.70.0830.0238.80
4.4.60.0700.0208.80
4.4.50.0670.0208.80
4.4.40.0870.0338.80
4.4.30.0770.0238.80
4.4.20.0670.0138.80
4.4.10.0270.0338.80
4.4.00.0630.0238.80
4.3.110.0830.0178.80
4.3.100.0900.0208.80
4.3.90.0870.0208.80
4.3.80.0770.0378.80
4.3.70.0770.0238.80
4.3.60.0830.0238.80
4.3.50.0930.0178.80
4.3.40.0930.0278.80
4.3.30.0470.0238.80
4.3.20.0430.0208.80
4.3.10.0500.0308.80
4.3.00.0430.0138.80

preferences:
40.82 ms | 401 KiB | 5 Q