3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_convert_encoding('€', 'UTF-16', 'UTF-8'));

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)
8.3.60.0160.00318.07
8.3.50.0110.00416.27
8.3.40.0000.01518.76
8.3.30.0140.00718.49
8.3.20.0070.00020.35
8.3.10.0070.00723.66
8.3.00.0040.00419.44
8.2.180.0180.00318.16
8.2.170.0030.01322.96
8.2.160.0070.00718.96
8.2.150.0120.00624.18
8.2.140.0080.00624.66
8.2.130.0070.00019.27
8.2.120.0000.00926.35
8.2.110.0030.00620.52
8.2.100.0090.00317.47
8.2.90.0050.00319.22
8.2.80.0060.00317.97
8.2.70.0050.00317.63
8.2.60.0090.00018.04
8.2.50.0080.00018.10
8.2.40.0000.00720.61
8.2.30.0050.00220.88
8.2.20.0000.00917.87
8.2.10.0000.00717.94
8.2.00.0040.00418.09
8.1.280.0120.00925.92
8.1.270.0000.00722.20
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0000.01220.90
8.1.230.0040.00719.15
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0050.00317.10
8.1.180.0060.00318.10
8.1.170.0050.00318.55
8.1.160.0000.00718.97
8.1.150.0040.00418.82
8.1.140.0000.00719.57
8.1.130.0030.00318.82
8.1.120.0050.00217.30
8.1.110.0000.00717.37
8.1.100.0040.00417.37
8.1.90.0040.00417.43
8.1.80.0030.00317.34
8.1.70.0040.00417.42
8.1.60.0000.00817.51
8.1.50.0040.00417.50
8.1.40.0040.00417.44
8.1.30.0040.00417.49
8.1.20.0100.00017.57
8.1.10.0000.00717.34
8.1.00.0040.00417.31
8.0.300.0000.00818.77
8.0.290.0000.00816.63
8.0.280.0030.00318.33
8.0.270.0070.00017.18
8.0.260.0060.00316.76
8.0.250.0080.00016.89
8.0.240.0000.00716.75
8.0.230.0000.00716.88
8.0.220.0030.00316.85
8.0.210.0000.00716.84
8.0.200.0040.00416.93
8.0.190.0050.00316.78
8.0.180.0090.00016.90
8.0.170.0000.00816.89
8.0.160.0040.00316.86
8.0.150.0080.00016.76
8.0.140.0000.00716.80
8.0.130.0030.00313.32
8.0.120.0040.00416.75
8.0.110.0080.00016.71
8.0.100.0000.00716.81
8.0.90.0040.00316.65
8.0.80.0090.00916.77
8.0.70.0000.00816.84
8.0.60.0040.00416.63
8.0.50.0040.00416.79
8.0.30.0090.00916.96
8.0.20.0140.00617.40
8.0.10.0000.00716.77
8.0.00.0090.00916.64
7.4.330.0000.00615.55
7.4.320.0030.00316.43
7.4.300.0030.00316.38
7.4.290.0090.00016.51
7.4.280.0050.00316.56
7.4.270.0030.00316.57
7.4.260.0030.00316.50
7.4.250.0050.00216.54
7.4.240.0040.00416.42
7.4.230.0030.00516.64
7.4.220.0100.01016.62
7.4.210.0060.01116.60
7.4.200.0040.00416.50
7.4.160.0090.00716.39
7.4.150.0090.00917.40
7.4.140.0110.00617.86
7.4.130.0060.01316.44
7.4.120.0120.00816.35
7.4.110.0060.01216.26
7.4.100.0100.00716.41
7.4.90.0000.01616.38
7.4.80.0110.00619.39
7.4.70.0060.01116.42
7.4.60.0100.00716.25
7.4.50.0030.00716.32
7.4.40.0100.00616.60
7.4.30.0120.00516.23
7.4.00.0060.01114.67
7.3.330.0000.00613.07
7.3.320.0000.00513.04
7.3.310.0070.00016.17
7.3.300.0000.00616.19
7.3.290.0090.00916.22
7.3.280.0090.00816.21
7.3.270.0080.00817.40
7.3.260.0140.00516.35
7.3.250.0060.01016.13
7.3.240.0070.01216.24
7.3.230.0040.01216.36
7.3.210.0120.00416.22
7.3.200.0070.01316.37
7.3.190.0030.01316.23
7.3.180.0120.00916.37
7.3.170.0130.00316.45
7.3.160.0100.00716.25
7.3.120.0070.01314.70
7.3.110.0090.00914.71
7.3.100.0060.00914.59
7.3.90.0120.00314.88
7.3.80.0040.01214.67
7.3.70.0090.00014.72
7.3.60.0030.00614.59
7.3.50.0120.00014.51
7.3.40.0040.00714.66
7.3.30.0090.00714.48
7.3.20.0040.00816.59
7.3.10.0050.00816.38
7.3.00.0090.00316.38
7.2.330.0120.00816.32
7.2.320.0080.00816.50
7.2.310.0030.01316.44
7.2.300.0130.00316.57
7.2.290.0080.01116.31
7.2.250.0090.00614.78
7.2.240.0090.00614.83
7.2.230.0090.00614.97
7.2.220.0060.00614.88
7.2.210.0100.00314.94
7.2.200.0070.00314.46
7.2.190.0060.00614.79
7.2.180.0000.01614.93
7.2.170.0030.01314.70
7.2.130.0090.00916.55
7.2.120.0070.00616.49
7.2.110.0110.00716.30
7.2.100.0040.01116.64
7.2.90.0070.01116.36
7.2.80.0190.00816.45
7.2.70.0170.01016.29
7.2.60.0170.00216.68
7.2.50.0120.01216.53
7.2.40.0070.01016.53
7.2.30.0160.00716.42
7.2.20.0200.00916.52
7.2.10.0180.00916.45
7.2.00.0060.01117.59
7.1.330.0070.00715.57
7.1.320.0070.00715.59
7.1.310.0070.00715.69
7.1.300.0030.00615.70
7.1.290.0040.00715.37
7.1.280.0100.00315.49
7.1.270.0030.01315.51
7.1.260.0070.00715.52
7.1.250.0070.01015.35
7.1.200.0100.00315.66
7.1.100.0040.00717.74
7.1.70.0100.01216.90
7.1.60.0260.01534.70
7.1.50.0200.02034.88
7.1.40.0180.01834.24
7.1.30.0310.00034.38
7.1.20.0310.01034.48
7.1.10.0090.00816.67
7.1.00.0040.01516.68
7.0.200.0070.01416.57
7.0.190.0040.01516.74
7.0.180.0120.00316.33
7.0.170.0100.00716.24
7.0.160.0070.01016.07
7.0.150.0100.00916.16
7.0.140.0090.00916.25
7.0.130.0030.01216.43
7.0.120.0030.01216.44
7.0.110.0070.01016.22
7.0.100.0060.01016.25
7.0.90.0060.01016.11
7.0.80.0090.00916.39
7.0.70.0090.00916.11
7.0.60.0030.01015.96
7.0.50.0070.01016.50
7.0.40.0080.00816.62
7.0.30.0090.00616.43
7.0.20.0070.01016.57
7.0.10.0120.00616.45
7.0.00.0150.00616.48

preferences:
30.94 ms | 400 KiB | 5 Q