3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd \xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd \xef\xbf\xbd\xef\xbf\xbd \xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd \xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd"; var_dump(iconv('cp866', 'UTF-8', $str));

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)
8.3.60.0110.00416.63
8.3.50.0070.01016.35
8.3.40.0070.00718.63
8.3.30.0110.00418.73
8.3.20.0050.00220.38
8.3.10.0040.00421.91
8.3.00.0060.00317.72
8.2.180.0100.01016.50
8.2.170.0110.00322.96
8.2.160.0040.01120.39
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0030.00719.38
8.2.120.0080.00026.35
8.2.110.0040.00720.90
8.2.100.0060.00617.91
8.2.90.0050.00319.24
8.2.80.0000.00817.97
8.2.70.0030.00517.50
8.2.60.0000.00817.80
8.2.50.0030.00618.10
8.2.40.0070.00020.47
8.2.30.0000.00819.06
8.2.20.0050.00317.99
8.2.10.0080.00017.84
8.2.00.0000.00817.84
8.1.280.0070.00725.92
8.1.270.0080.00023.77
8.1.260.0030.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.84
8.1.230.0070.00418.88
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0070.00317.13
8.1.190.0000.00917.22
8.1.180.0080.00018.10
8.1.170.0050.00318.58
8.1.160.0050.00219.01
8.1.150.0000.00718.68
8.1.140.0020.00519.43
8.1.130.0000.00718.80
8.1.120.0040.00417.35
8.1.110.0030.00617.38
8.1.100.0040.00417.37
8.1.90.0030.00617.45
8.1.80.0070.00017.40
8.1.70.0070.00017.24
8.1.60.0000.00817.45
8.1.50.0000.00817.46
8.1.40.0000.00717.36
8.1.30.0000.00817.42
8.1.20.0040.00417.43
8.1.10.0050.00317.41
8.1.00.0040.00417.31
8.0.300.0040.00418.77
8.0.290.0040.00416.58
8.0.280.0030.00318.37
8.0.270.0030.00317.12
8.0.260.0000.00816.71
8.0.250.0030.00316.91
8.0.240.0040.00416.95
8.0.230.0000.00716.84
8.0.220.0070.00316.93
8.0.210.0030.00316.83
8.0.200.0000.00616.96
8.0.190.0060.00316.81
8.0.180.0040.00816.92
8.0.170.0030.00516.87
8.0.160.0040.00416.89
8.0.150.0070.00016.91
8.0.140.0030.00316.82
8.0.130.0030.00313.25
8.0.120.0030.00616.98
8.0.110.0040.00416.80
8.0.100.0060.00616.90
8.0.90.0030.00616.98
8.0.80.0070.01117.02
8.0.70.0050.00516.82
8.0.60.0030.00617.13
8.0.50.0030.00617.00
8.0.30.0120.00717.00
8.0.20.0110.01017.40
8.0.10.0060.00317.14
8.0.00.0030.01816.89
7.4.330.0000.00515.55
7.4.320.0030.00316.55
7.4.300.0030.00316.50
7.4.290.0000.00716.42
7.4.280.0000.00716.35
7.4.270.0030.00316.42
7.4.260.0030.00313.25
7.4.250.0040.00416.58
7.4.240.0030.00616.73
7.4.230.0060.00316.82
7.4.220.0090.01316.67
7.4.210.0110.00516.64
7.4.200.0100.00016.81
7.4.160.0080.01016.45
7.4.150.0070.01317.40
7.4.140.0090.01517.86
7.4.130.0090.01316.71
7.4.120.0080.01416.61
7.4.110.0140.00616.77
7.4.100.0120.00916.60
7.4.90.0100.01016.57
7.4.80.0170.00319.39
7.4.70.0120.01116.26
7.4.60.0130.00916.24
7.4.50.0180.00216.43
7.4.40.0140.01416.49
7.4.30.0130.01016.04
7.4.20.0150.01116.40
7.4.10.0150.01216.16
7.4.00.0090.01315.47
7.3.330.0000.00513.09
7.3.320.0000.00613.17
7.3.310.0040.00416.20
7.3.300.0000.00816.22
7.3.290.0100.00816.30
7.3.280.0090.01216.31
7.3.270.0130.00717.40
7.3.260.0090.01116.39
7.3.250.0160.00716.46
7.3.240.0150.00916.63
7.3.230.0080.01216.37
7.3.210.0090.01216.43
7.3.200.0030.01716.39
7.3.190.0130.00716.27
7.3.180.0050.01516.30
7.3.170.0120.01116.31
7.3.160.0100.00916.08
7.3.150.0120.01116.14
7.3.140.0150.00915.81
7.3.130.0130.01015.89
7.3.120.0110.01315.07
7.3.110.0100.01115.23
7.3.100.0100.00915.28
7.3.90.0130.00615.18
7.3.80.0060.01515.28
7.3.70.0110.00815.33
7.3.60.0080.01215.24
7.3.50.0100.01015.15
7.3.40.0100.00915.27
7.3.30.0080.01015.35
7.3.20.0100.00816.57
7.3.10.0110.00716.47
7.3.00.0110.00916.39
7.2.330.0120.00816.78
7.2.320.0170.00716.28
7.2.310.0070.01316.50
7.2.300.0140.01116.53
7.2.290.0110.01316.27
7.2.280.0140.00616.28
7.2.270.0140.00716.13
7.2.260.0110.01416.16
7.2.250.0120.00915.29
7.2.240.0080.01215.47
7.2.230.0100.01015.52
7.2.220.0010.01615.32
7.2.210.0060.01315.34
7.2.200.0060.01315.33
7.2.190.0070.01015.40
7.2.180.0070.01315.38
7.2.170.0120.00615.41
7.2.160.0170.00816.32
7.2.150.0080.01716.40
7.2.140.0080.02016.31
7.2.130.0140.00816.60
7.2.120.0110.01016.54
7.2.110.0080.01516.59
7.2.100.0130.00516.53
7.2.90.0080.01216.63
7.2.80.0070.01116.58
7.2.70.0220.01216.75
7.2.60.0170.00616.84
7.2.50.0130.00916.65
7.2.40.0100.01516.57
7.2.30.0070.01016.74
7.2.20.0120.01016.45
7.2.10.0120.00716.64
7.2.00.0120.00617.44
7.1.330.0100.01115.79
7.1.320.0110.01115.77
7.1.310.0130.00715.76
7.1.300.0120.01315.73
7.1.290.0080.01215.74
7.1.280.0090.01015.80
7.1.270.0210.01115.80
7.1.260.0140.00815.75
7.1.250.0130.01115.70
7.1.240.0270.00915.67
7.1.230.0240.01015.53
7.1.220.0180.01215.65
7.1.210.0170.01415.48
7.1.200.0190.00515.54
7.1.190.0260.01215.67
7.1.180.0230.00815.57
7.1.170.0180.00915.40
7.1.160.0100.01715.44
7.1.150.0360.00015.60
7.1.140.0110.01715.48
7.1.130.0170.01715.53
7.1.120.0160.01715.47
7.1.110.0160.01215.59
7.1.100.0090.01116.67
7.1.90.0310.00315.58
7.1.80.0170.01715.64
7.1.70.0180.00816.56
7.1.60.0150.01325.50
7.1.50.0120.01825.32
7.1.40.0170.01625.10
7.1.30.0180.01225.24
7.1.20.0200.00825.16
7.1.10.0160.00616.14
7.1.00.0190.01116.33
7.0.330.0200.00815.21
7.0.320.0120.01315.09
7.0.310.0150.01815.44
7.0.300.0120.01315.27
7.0.290.0250.00615.15
7.0.280.0150.01515.57
7.0.270.0170.00915.42
7.0.260.0080.01715.07
7.0.250.0280.01415.13
7.0.240.0160.01114.96
7.0.230.0250.00715.61
7.0.220.0280.00815.30
7.0.210.0230.00715.39
7.0.200.0050.01616.28
7.0.190.0160.00516.11
7.0.180.0120.01315.90
7.0.170.0120.01015.75
7.0.160.0130.01015.84
7.0.150.0120.01215.89
7.0.140.0130.01015.99
7.0.130.0080.01415.83
7.0.120.0130.00815.98
7.0.110.0160.00715.91
7.0.100.0150.00815.88
7.0.90.0100.01115.85
7.0.80.0140.00915.89
7.0.70.0110.00815.97
7.0.60.0090.00715.76
7.0.50.0100.00915.93
7.0.40.0060.01015.87
7.0.30.0080.00916.11
7.0.20.0150.01015.89
7.0.10.0030.01215.99
7.0.00.0070.01015.96
5.6.400.0190.01315.84
5.6.390.0250.01015.94
5.6.380.0170.01015.90
5.6.370.0150.01315.85
5.6.360.0240.01015.51
5.6.350.0150.01215.87
5.6.340.0250.00715.64
5.6.330.0200.02015.90
5.6.320.0140.01415.82
5.6.310.0190.01416.05
5.6.300.0290.01215.77
5.6.290.0170.02015.79
5.6.280.0150.01516.13
5.6.270.0310.00716.14
5.6.260.0140.02315.91
5.6.250.0160.01615.74
5.6.240.0240.01215.92
5.6.230.0200.01015.84
5.6.220.0120.00915.91
5.6.210.0130.00816.01
5.6.200.0040.01815.97
5.6.190.0040.01715.81
5.6.180.0070.01315.84
5.6.170.0070.01315.82
5.6.160.0050.01616.04
5.6.150.0080.01215.94
5.6.140.0040.01815.92
5.6.130.0120.00916.00
5.6.120.0150.00615.71
5.6.110.0100.01015.82
5.6.100.0110.00916.04
5.6.90.0170.00315.71
5.6.80.0040.01815.80
5.6.70.0040.01615.75
5.6.60.0030.01715.72
5.6.50.0070.01415.92
5.6.40.0040.01515.65
5.6.30.0090.01615.81
5.6.20.0060.01815.81
5.6.10.0070.01415.88
5.6.00.0080.01215.85

preferences:
47.85 ms | 401 KiB | 5 Q