3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "ГЏ"; var_dump($test); var_dump(mb_convert_encoding($test, 'UTF-7', 'UTF-8')); var_dump(mb_convert_encoding($test, 'UCS-2', 'UTF-8')); var_dump(mb_detect_encoding($test, ['UTF-7']));

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)
8.3.60.0070.01317.97
8.3.50.0130.00122.06
8.3.40.0040.01118.64
8.3.30.0110.00618.84
8.3.20.0120.00620.16
8.3.10.0040.00423.48
8.3.00.0040.00419.26
8.2.180.0110.00416.38
8.2.170.0070.00722.96
8.2.160.0100.00320.32
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0040.00422.16
8.2.110.0040.00420.53
8.2.100.0040.00818.09
8.2.90.0050.00219.08
8.2.80.0030.00617.97
8.2.70.0040.00417.60
8.2.60.0040.00417.93
8.2.50.0090.00018.07
8.2.40.0040.00419.82
8.2.30.0050.00318.05
8.2.20.0060.00317.59
8.2.10.0050.00318.02
8.2.00.0040.00417.71
8.1.280.0260.00825.92
8.1.270.0000.00823.87
8.1.260.0050.00226.35
8.1.250.0020.00528.09
8.1.240.0060.00324.02
8.1.230.0040.00719.02
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.00917.13
8.1.190.0080.00017.23
8.1.180.0050.00318.10
8.1.170.0050.00318.59
8.1.160.0000.00721.92
8.1.150.0000.00918.91
8.1.140.0000.00717.42
8.1.130.0000.00717.80
8.1.120.0000.00717.36
8.1.110.0090.00017.41
8.1.100.0000.00717.48
8.1.90.0050.00217.52
8.1.80.0000.00817.34
8.1.70.0070.00017.40
8.1.60.0030.00617.61
8.1.50.0050.00317.46
8.1.40.0000.00817.51
8.1.30.0040.00417.64
8.1.20.0000.00717.68
8.1.10.0000.00717.45
8.1.00.0030.00617.48
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0000.00718.36
8.0.270.0030.00617.27
8.0.260.0000.00917.25
8.0.250.0030.00316.93
8.0.240.0000.00616.85
8.0.230.0030.00316.93
8.0.220.0040.00416.94
8.0.210.0040.00416.77
8.0.200.0040.00416.77
8.0.190.0040.00416.98
8.0.180.0040.00416.73
8.0.170.0060.00316.88
8.0.160.0080.00016.84
8.0.150.0030.00316.84
8.0.140.0030.00516.86
8.0.130.0030.00313.29
8.0.120.0020.00516.84
8.0.110.0000.00816.82
8.0.100.0070.00016.82
8.0.90.0000.00716.83
8.0.80.0070.00716.77
8.0.70.0000.00816.84
8.0.60.0050.00216.86
8.0.50.0040.00416.92
8.0.30.0080.01117.03
8.0.20.0100.00817.40
8.0.10.0000.00716.76
8.0.00.0060.01516.64
7.4.330.0030.00315.00
7.4.320.0030.00316.57
7.4.300.0000.00616.52
7.4.290.0030.00316.33
7.4.280.0040.00416.53
7.4.270.0030.00316.61
7.4.260.0030.00516.52
7.4.250.0040.00416.54
7.4.240.0050.00316.59
7.4.230.0040.00416.66
7.4.220.0070.01016.60
7.4.210.0060.00916.43
7.4.200.0070.00016.39
7.4.160.0110.01116.37
7.4.150.0090.00917.40
7.4.140.0090.01117.86
7.4.130.0050.01216.36
7.4.120.0090.00816.44
7.4.110.0140.01816.29
7.4.100.0060.01016.40
7.4.90.0030.01316.42
7.4.80.0100.01019.39
7.4.70.0060.01216.45
7.4.60.0060.01016.49
7.4.50.0050.00316.53
7.4.40.0070.01116.30
7.4.30.0030.01316.36
7.4.00.0090.00614.71
7.3.330.0020.00213.04
7.3.320.0000.00513.14
7.3.310.0030.00616.21
7.3.300.0000.00716.30
7.3.290.0000.01516.26
7.3.280.0090.01016.19
7.3.270.0130.00617.40
7.3.260.0140.00316.42
7.3.250.0070.00916.22
7.3.240.0110.00616.12
7.3.230.0030.01416.39
7.3.210.0130.00616.35
7.3.200.0110.01019.39
7.3.190.0100.01016.44
7.3.180.0120.00316.06
7.3.170.0090.01316.27
7.3.160.0060.00916.53
7.3.10.0090.00616.16
7.3.00.0100.00716.42
7.2.330.0090.00916.41
7.2.320.0030.01716.44
7.2.310.0030.01316.41
7.2.300.0030.01316.36
7.2.290.0060.01116.54
7.2.130.0110.00716.77
7.2.120.0120.00816.72
7.2.110.0060.00616.69
7.2.100.0040.01116.70
7.2.90.0120.00616.87
7.2.80.0030.00716.58
7.2.70.0140.00516.68
7.2.60.0020.01116.52
7.2.50.0070.00316.81
7.2.40.0120.00616.57
7.2.30.0080.00816.45
7.2.20.0040.01516.62
7.2.10.0120.00416.63
7.2.00.0030.01316.79
7.1.250.0060.00815.39
7.1.240.0030.01215.43
7.1.230.0100.00315.51
7.1.220.0000.01215.68
7.1.210.0110.00715.46
7.1.200.0070.00715.78
7.1.190.0030.00915.62
7.1.180.0070.00715.30
7.1.170.0080.00615.76
7.1.160.0150.00315.55
7.1.150.0130.00315.79
7.1.140.0090.00915.66
7.1.130.0120.00315.50
7.1.120.0030.01015.80
7.1.110.0060.00615.68
7.1.100.0080.00516.81
7.1.90.0060.00315.86
7.1.80.0000.00915.70
7.1.70.0040.00616.50
7.1.60.0060.00716.59
7.1.50.0070.01216.49
7.1.40.0030.00715.66
7.1.30.0000.00815.48
7.1.20.0110.01115.35
7.1.10.0090.00915.63
7.1.00.0080.04119.03
7.0.330.0030.01115.18
7.0.320.0070.00715.27
7.0.310.0070.00715.23
7.0.300.0100.00315.10
7.0.290.0090.00915.06
7.0.280.0020.00715.23
7.0.270.0030.01415.02
7.0.260.0000.00915.16
7.0.250.0070.00715.29
7.0.240.0000.01515.01
7.0.230.0090.01214.96
7.0.220.0040.01115.13
7.0.210.0060.00915.00
7.0.200.0000.01416.01
7.0.190.0000.01315.21
7.0.180.0060.00615.02
7.0.170.0090.00915.12
7.0.160.0160.00615.43
7.0.150.0160.00615.46
7.0.140.0120.03818.71
7.0.130.0100.00715.14
7.0.120.0100.01415.23
7.0.110.0260.00615.37
7.0.100.0170.00715.25
7.0.90.0110.00915.53
7.0.80.0110.01115.25
7.0.70.0140.01415.27
7.0.60.0080.04517.63
7.0.50.0040.03716.65
7.0.40.0080.03816.50
7.0.30.0270.03816.83
7.0.20.0200.03516.50
7.0.10.0070.02516.61
7.0.00.0050.02516.64
5.6.380.0030.00914.36
5.6.370.0070.01013.96
5.6.360.0030.01013.75
5.6.350.0080.00613.81
5.6.340.0120.00513.95
5.6.330.0060.01213.96
5.6.320.0000.01813.58
5.6.310.0000.00814.07
5.6.300.0110.00414.11
5.6.290.0080.00814.11
5.6.280.0030.04217.35
5.6.270.0060.00914.05
5.6.260.0000.01413.73
5.6.250.0040.01414.14
5.6.240.0040.00813.82
5.6.230.0060.00614.09
5.6.220.0140.00513.97
5.6.210.0150.04217.15
5.6.200.0020.03315.98
5.6.190.0050.05017.28
5.6.180.0250.04216.95
5.6.170.0130.03917.31
5.6.160.0120.03917.01
5.6.150.0100.04015.99
5.6.140.0050.02715.96
5.6.130.0030.04116.06
5.6.120.0020.03217.32
5.6.110.0060.04717.39
5.6.100.0100.04317.53
5.6.90.0070.04317.44
5.6.80.0040.02717.14
5.6.70.2100.02217.05
5.6.60.0080.00813.72
5.6.50.0090.00913.91
5.6.40.0070.01313.87
5.6.30.0100.01013.81
5.6.20.0080.01113.79
5.6.10.0060.01213.62
5.6.00.0130.00514.04
5.5.380.0060.00610.66
5.5.370.0060.00311.07
5.5.360.0090.00310.86
5.5.350.0070.03415.67
5.5.340.0020.03814.26
5.5.330.0040.04815.44
5.5.320.0230.03515.46
5.5.310.0100.02415.46
5.5.300.0050.04214.42
5.5.290.0080.04314.43
5.5.280.0050.02415.81
5.5.270.0040.02815.58
5.5.260.0070.04315.78
5.5.250.0110.03515.60
5.5.240.0150.04215.36
5.5.230.0070.00710.50
5.5.220.0040.01110.81
5.5.210.0090.00610.68
5.5.200.0090.00510.55
5.5.190.0080.00810.72
5.5.180.0060.00610.52
5.5.170.0100.00510.48
5.5.160.0120.00210.71
5.5.150.0080.00510.32
5.5.140.0000.01410.83
5.5.130.0070.00710.75
5.5.120.0000.01410.75
5.5.110.0070.00710.58
5.5.100.0060.00910.54
5.5.90.0050.01010.29
5.5.80.0100.00310.41
5.5.70.0100.00310.45
5.5.60.0090.00610.32
5.5.50.0050.00510.43
5.5.40.0070.00710.55
5.5.30.0080.00810.59
5.5.20.0060.00910.48
5.5.10.0090.00310.57
5.5.00.0060.00610.65
5.4.450.0310.03215.16
5.4.440.0450.02215.16
5.4.430.0950.02215.24
5.4.420.0440.00515.15
5.4.410.0380.00315.10
5.4.400.0330.00314.91
5.4.390.0390.00514.89
5.4.380.0470.00314.77
5.4.370.0340.00314.92
5.4.360.0370.00214.81
5.4.350.0340.00414.92
5.4.340.0020.02511.45
5.4.330.0000.01210.77
5.4.320.0070.02111.53
5.4.310.0080.02111.48
5.4.300.0050.02211.60
5.4.290.0040.02411.52
5.4.280.0090.02011.51
5.4.270.0040.02611.36
5.4.260.0100.02111.42
5.4.250.0070.02411.60
5.4.240.0040.02811.60
5.4.230.0060.02611.51
5.4.220.0060.02011.57
5.4.210.0060.02211.48
5.4.200.0070.02111.39
5.4.190.0090.02211.42
5.4.180.0080.02611.52
5.4.170.0070.02311.47
5.4.160.0060.02511.40
5.4.150.0070.02411.49
5.4.140.0060.02411.40
5.4.130.0100.01911.36
5.4.120.0090.02211.35
5.4.110.0090.02411.29
5.4.100.0070.01911.29
5.4.90.0090.01911.51
5.4.80.0070.02611.43
5.4.70.0070.02711.43
5.4.60.0030.02411.23
5.4.50.0040.02211.35
5.4.40.0100.02211.34
5.4.30.0060.02011.20
5.4.20.0050.02511.41
5.4.10.0080.01811.32
5.4.00.0050.02111.10
5.3.290.0050.02211.53
5.3.280.0080.01911.38
5.3.270.0070.02011.37
5.3.260.0040.02311.45
5.3.250.0040.02311.37
5.3.240.0060.02211.42
5.3.230.0090.01911.32
5.3.220.0040.02511.43
5.3.210.0080.02111.30
5.3.200.0020.02711.31
5.3.190.0050.02411.37
5.3.180.0060.02111.49
5.3.170.0050.02111.53
5.3.160.0040.02711.48
5.3.150.0080.01811.49
5.3.140.0060.01711.47
5.3.130.0040.02211.43
5.3.120.0060.02311.44
5.3.110.0070.02111.45
5.3.100.0070.01911.22
5.3.90.0050.02611.18
5.3.80.0040.02311.10
5.3.70.0070.01911.10
5.3.60.0060.02011.13
5.3.50.0070.01911.14
5.3.40.0020.02411.13
5.3.30.0050.01911.01
5.3.20.0050.02010.89
5.3.10.0040.02310.81
5.3.00.0060.02210.81
5.2.170.0040.0189.27
5.2.160.0050.0199.22
5.2.150.0060.0169.25
5.2.140.0070.0169.21
5.2.130.0010.0209.04
5.2.120.0060.0179.04
5.2.110.0020.0199.17
5.2.100.0070.0189.17
5.2.90.0050.0149.19
5.2.80.0040.0159.13
5.2.70.0050.0179.13
5.2.60.0020.0179.12
5.2.50.0040.0169.13
5.2.40.0030.0179.10
5.2.30.0060.0169.06
5.2.20.0030.0199.02
5.2.10.0040.0178.95
5.2.00.0070.0148.86
5.1.60.0040.0148.50
5.1.50.0060.0148.50
5.1.40.0040.0158.49
5.1.30.0020.0188.66
5.1.20.0050.0158.67
5.1.10.0070.0128.54
5.1.00.0050.0148.54
5.0.50.0070.0147.78
5.0.40.0020.0127.71
5.0.30.0040.0167.61
5.0.20.0050.0197.60
5.0.10.0050.0117.59
5.0.00.0050.0187.58
4.4.90.0030.0106.85
4.4.80.0020.0116.84
4.4.70.0020.0126.84
4.4.60.0020.0116.84
4.4.50.0020.0116.85
4.4.40.0010.0156.82
4.4.30.0060.0076.84
4.4.20.0040.0076.88
4.4.10.0020.0116.89
4.4.00.0020.0156.84
4.3.110.0030.0096.80
4.3.100.0020.0116.79
4.3.90.0060.0086.78
4.3.80.0020.0166.75
4.3.70.0030.0086.78
4.3.60.0020.0106.78
4.3.50.0020.0116.78
4.3.40.0050.0126.73
4.3.30.0030.0106.11
4.3.20.0040.0076.09
4.3.10.0010.0106.07
4.3.00.0210.0078.71

preferences:
41.18 ms | 401 KiB | 5 Q