3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'qтест12qq'; $str_win = iconv('utf-8', 'cp1251//IGNORE', $str); echo mb_detect_encoding($str, 'CP1251, UTF-8'); echo mb_detect_encoding($str_win, 'CP1251, UTF-8'); echo iconv('utf-8', 'cp1251//IGNORE', $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)
8.3.40.0120.00318.85
8.3.30.0070.00718.93
8.3.20.0040.00420.39
8.3.10.0080.00022.10
8.3.00.0080.00022.46
8.2.170.0120.00822.96
8.2.160.0080.00821.14
8.2.150.0050.00324.18
8.2.140.0030.00524.66
8.2.130.0070.00026.16
8.2.120.0080.00017.88
8.2.110.0000.01019.57
8.2.100.0110.00018.03
8.2.90.0050.00319.42
8.2.80.0030.00918.05
8.2.70.0030.00617.75
8.2.60.0000.00818.17
8.2.50.0000.00818.07
8.2.40.0040.00418.47
8.2.30.0000.00718.34
8.2.20.0070.00017.71
8.2.10.0040.00417.73
8.2.00.0000.00817.78
8.1.270.0000.00822.23
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0000.00922.27
8.1.230.0090.00319.00
8.1.220.0060.00317.89
8.1.210.0000.00918.77
8.1.200.0080.00017.60
8.1.190.0000.00817.66
8.1.180.0000.00918.10
8.1.170.0060.00318.71
8.1.160.0090.00022.17
8.1.150.0040.00418.65
8.1.140.0040.00417.57
8.1.130.0040.00417.96
8.1.120.0000.00717.45
8.1.110.0000.00717.54
8.1.100.0050.00217.60
8.1.90.0040.00417.45
8.1.80.0000.00717.61
8.1.70.0050.00317.53
8.1.60.0030.00517.57
8.1.50.0050.00217.54
8.1.40.0060.00317.60
8.1.30.0050.00217.73
8.1.20.0040.00417.63
8.1.10.0040.00417.56
8.1.00.0090.00017.58
8.0.300.0060.00318.77
8.0.290.0040.00417.18
8.0.280.0030.00318.49
8.0.270.0000.00717.37
8.0.260.0000.00616.94
8.0.250.0000.00717.11
8.0.240.0080.00017.07
8.0.230.0040.00416.97
8.0.220.0000.00817.00
8.0.210.0000.00717.05
8.0.200.0060.00017.13
8.0.190.0030.00517.06
8.0.180.0030.00317.01
8.0.170.0000.00717.10
8.0.160.0000.00717.02
8.0.150.0040.00416.93
8.0.140.0000.00816.95
8.0.130.0030.00313.37
8.0.120.0000.00917.10
8.0.110.0060.00317.07
8.0.100.0000.00817.07
8.0.90.0030.00617.11
8.0.80.0100.00717.05
8.0.70.0030.00617.08
8.0.60.0000.00816.97
8.0.50.0030.00617.13
8.0.30.0110.01017.40
8.0.20.0110.01017.40
8.0.10.0030.00617.15
8.0.00.0110.00816.75
7.4.330.0030.00315.00
7.4.320.0000.00616.54
7.4.300.0070.00016.66
7.4.290.0050.00216.66
7.4.280.0000.00816.56
7.4.270.0070.00016.44
7.4.260.0000.01116.53
7.4.250.0060.00316.60
7.4.240.0050.00316.76
7.4.230.0000.00816.61
7.4.220.0060.01416.75
7.4.210.0090.00916.74
7.4.200.0040.00416.90
7.4.190.0000.00816.93
7.4.160.0150.00316.60
7.4.150.0090.01217.40
7.4.140.0110.00817.86
7.4.130.0110.00816.71
7.4.120.0090.01116.64
7.4.110.0080.01116.76
7.4.100.0080.01216.68
7.4.90.0140.00716.73
7.4.80.0090.01619.39
7.4.70.0120.01116.38
7.4.60.0150.00716.40
7.4.50.0050.01016.70
7.4.40.0110.00919.57
7.4.30.0090.01216.32
7.4.20.0110.00816.50
7.4.10.0090.00916.36
7.4.00.0060.01015.75
7.3.330.0030.00313.00
7.3.320.0000.00513.19
7.3.310.0030.00516.47
7.3.300.0030.00616.38
7.3.290.0100.01316.42
7.3.280.0080.01216.42
7.3.270.0100.01017.40
7.3.260.0150.01216.54
7.3.250.0130.00516.67
7.3.240.0130.00616.59
7.3.230.0120.00616.61
7.3.210.0120.00816.59
7.3.200.0130.00616.60
7.3.190.0130.00716.24
7.3.180.0120.00816.41
7.3.170.0110.00816.57
7.3.160.0120.01116.28
7.3.150.0030.01616.10
7.3.140.0060.01316.32
7.3.130.0130.00716.27
7.3.120.0080.01215.38
7.3.110.0070.01315.46
7.3.100.0080.01215.63
7.3.90.0050.00915.56
7.3.80.0130.00315.67
7.3.70.0050.01015.50
7.3.60.0050.01315.56
7.3.50.0060.00915.53
7.3.40.0110.01115.48
7.3.30.0050.01215.63
7.3.20.0080.01216.42
7.3.10.0890.00416.55
7.3.00.0090.00816.66
7.2.330.0040.01416.95
7.2.320.0120.00916.92
7.2.310.0130.00816.51
7.2.300.0110.01016.87
7.2.290.0080.01516.87
7.2.280.0110.00816.37
7.2.270.0130.00816.48
7.2.260.0150.00616.41
7.2.250.0090.01215.75
7.2.240.0120.00815.83
7.2.230.0050.01615.68
7.2.220.0050.01015.79
7.2.210.0050.01215.82
7.2.200.0030.01415.67
7.2.190.0080.00815.88
7.2.180.0090.01115.71
7.2.170.0120.00715.96
7.2.160.0160.01016.37
7.2.150.0170.01016.68
7.2.140.0090.02116.71
7.2.130.0080.01516.82
7.2.120.0160.00616.91
7.2.110.0070.01716.72
7.2.100.0080.01416.92
7.2.90.0160.00816.88
7.2.80.0100.01116.78
7.2.70.0110.01016.64
7.2.60.0110.00816.78
7.2.50.0670.01317.06
7.2.40.0060.01216.93
7.2.30.0080.01417.00
7.2.20.0050.01516.82
7.2.10.0090.01216.92
7.2.00.0100.00917.78
7.1.330.0140.01215.91
7.1.320.0200.00515.95
7.1.310.0160.00815.94
7.1.300.0090.01115.85
7.1.290.0200.00815.83
7.1.280.0120.01215.74
7.1.270.0840.01115.84
7.1.260.0130.01415.97
7.1.250.0180.00915.88
7.1.240.0290.01515.69
7.1.230.0240.01615.67
7.1.220.0300.01515.75
7.1.210.0290.01115.67
7.1.200.0120.00715.93
7.1.190.0220.01815.81
7.1.180.0920.01015.67
7.1.170.0300.00915.67
7.1.160.0180.01815.56
7.1.150.0220.01615.64
7.1.140.0230.01515.75
7.1.130.0280.01215.87
7.1.120.0340.01115.86
7.1.110.0130.02215.82
7.1.100.0170.00717.08
7.1.90.0280.01115.62
7.1.80.0390.00615.84
7.1.70.0150.01416.43
7.1.60.0210.01317.81
7.1.50.0150.01216.39
7.1.40.0240.00815.86
7.1.30.0290.01015.64
7.1.20.0280.01915.79
7.1.10.0290.01115.91
7.1.00.0200.04319.18
7.0.330.0310.00915.33
7.0.320.0190.01815.46
7.0.310.0110.01515.48
7.0.300.0250.01315.58
7.0.290.0220.01615.38
7.0.280.0250.01315.57
7.0.270.0240.01415.58
7.0.260.0220.01415.66
7.0.250.0220.01615.41
7.0.240.0500.00915.50
7.0.230.0180.01315.75
7.0.220.0230.01815.50
7.0.210.0280.00915.39
7.0.200.0160.00916.19
7.0.190.0230.00915.42
7.0.180.0260.00715.59
7.0.170.0270.01215.35
7.0.160.0190.01415.41
7.0.150.0330.01015.49
7.0.140.0120.04718.92
7.0.130.0410.00315.43
7.0.120.0210.00815.26
7.0.110.0690.04317.67
7.0.100.0570.04217.81
7.0.90.0540.04617.68
7.0.80.0420.04217.60
7.0.70.0440.02617.64
7.0.60.0510.04517.79
7.0.50.0160.02917.58
7.0.40.0150.03017.61
7.0.30.0150.02817.49
7.0.20.0140.04517.51
7.0.10.0190.03317.63
7.0.00.0200.03817.60
5.6.400.0230.01616.30
5.6.390.0260.01416.36
5.6.380.0230.01916.06
5.6.370.0150.01316.23
5.6.360.0220.01916.23
5.6.350.0250.01515.94
5.6.340.0250.01116.00
5.6.330.0240.01816.12
5.6.320.0290.01216.07
5.6.310.0280.01016.26
5.6.300.0270.01416.14
5.6.290.0230.01616.04
5.6.280.0130.04518.67
5.6.270.0190.01816.00
5.6.260.0180.04418.34
5.6.250.0160.04318.38
5.6.240.0180.04118.56
5.6.230.0100.04518.38
5.6.220.0160.04418.31
5.6.210.0120.04418.36
5.6.200.0130.04618.42
5.6.190.0110.04718.36
5.6.180.0220.04218.39
5.6.170.0150.04218.19
5.6.160.0230.02518.17
5.6.150.0160.04318.29
5.6.140.0130.04518.28
5.6.130.0150.04318.32
5.6.120.0130.03418.49
5.6.110.0160.04518.39
5.6.100.0110.05318.31
5.6.90.0190.04018.38
5.6.80.0130.03517.89
5.6.70.0150.04517.96
5.6.60.0150.04417.95
5.6.50.0200.03217.92
5.6.40.0230.03318.01
5.6.30.0130.03818.03
5.6.20.0180.04718.11
5.6.10.0160.04218.08
5.6.00.0160.03517.91
5.5.380.0110.03318.23
5.5.370.0170.04418.26
5.5.360.0130.04618.16
5.5.350.0180.04118.10
5.5.340.0130.04518.52
5.5.330.0130.04818.61
5.5.320.0110.04818.35
5.5.310.0160.03318.38
5.5.300.0150.02818.56
5.5.290.0150.03618.55
5.5.280.0170.04418.39
5.5.270.0140.04818.62
5.5.260.0180.04218.53
5.5.250.0200.04118.31
5.5.240.0150.04918.21
5.5.230.0150.05018.24
5.5.220.0140.05018.23
5.5.210.0150.04318.27
5.5.200.0160.04318.10
5.5.190.0140.05118.10
5.5.180.0200.04118.16
5.5.170.0190.01815.86
5.5.160.0130.03818.12
5.5.150.0160.04318.12
5.5.140.0100.05018.26
5.5.130.0100.05018.14
5.5.120.0130.04818.26
5.5.110.0140.04417.99
5.5.100.0160.04118.08
5.5.90.0040.05318.15
5.5.80.0160.03918.15
5.5.70.0100.04518.13
5.5.60.0120.04418.07
5.5.50.0120.04217.96
5.5.40.0110.04717.98
5.5.30.0180.04218.15
5.5.20.0150.04218.02
5.5.10.0140.04817.90
5.5.00.0100.04318.19
5.4.450.0100.04015.99
5.4.440.0150.03915.97
5.4.430.0150.03816.15
5.4.420.0070.02915.95
5.4.410.0170.03315.91
5.4.400.0090.03815.76
5.4.390.0190.03315.76
5.4.380.0070.04915.70
5.4.370.0120.04415.75
5.4.360.0100.04615.94
5.4.350.0120.03115.76
5.4.340.0090.04115.85
5.4.330.0110.01112.49
5.4.320.0130.03815.83
5.4.310.0170.04015.91
5.4.300.0130.04015.80
5.4.290.0120.03315.96
5.4.280.0120.04015.80
5.4.270.0120.03015.83
5.4.260.0150.04215.88
5.4.250.0080.04615.83
5.4.240.0120.02215.78
5.4.230.0110.04515.81
5.4.220.0110.04515.77
5.4.210.0100.02615.77
5.4.200.0190.03615.83
5.4.190.0100.04315.79
5.4.180.0090.03915.88
5.4.170.0040.03315.79
5.4.160.0090.04415.89
5.4.150.0110.04315.77
5.4.140.0080.03714.54
5.4.130.0120.02514.43
5.4.120.0080.04314.40
5.4.110.0150.04014.52
5.4.100.0140.04114.66
5.4.90.0110.04014.55
5.4.80.0080.04414.36
5.4.70.0070.03714.36
5.4.60.0120.03714.54
5.4.50.0080.04014.35
5.4.40.0170.03314.55
5.4.30.0140.03714.50
5.4.20.0110.03814.41
5.4.10.0110.03814.50
5.4.00.0130.04014.19
5.3.290.0140.02814.05
5.3.280.0130.04013.91
5.3.270.0100.04213.92
5.3.260.0130.04113.91
5.3.250.0120.04213.91
5.3.240.0130.04313.83
5.3.230.0090.04413.98
5.3.220.0140.04013.80
5.3.210.0130.03113.92
5.3.200.0120.04213.88
5.3.190.0070.04413.84
5.3.180.0140.03713.92
5.3.170.0060.04913.88
5.3.160.0090.02813.89
5.3.150.0130.04313.97
5.3.140.0090.04613.76
5.3.130.0120.03313.99
5.3.120.0140.04614.00
5.3.110.0080.04513.93
5.3.100.0140.03713.71
5.3.90.0070.03213.64
5.3.80.0120.04413.49
5.3.70.0120.03913.50
5.3.60.0110.03113.71
5.3.50.0110.04113.48
5.3.40.0120.04113.53
5.3.30.0110.04113.63
5.3.20.0080.02513.50
5.3.10.0150.03413.27
5.3.00.0100.04913.23
5.2.170.0120.01712.18
5.2.160.0080.03212.18
5.2.150.0090.03312.19
5.2.140.0050.03912.10
5.2.130.0100.03412.16
5.2.120.0040.03812.16
5.2.110.0140.03312.19
5.2.100.0080.01912.16
5.2.90.0120.02512.10
5.2.80.0100.03812.06
5.2.70.0080.03612.06
5.2.60.0100.03612.06
5.2.50.0030.03012.20
5.2.40.0070.03612.05
5.2.30.0080.02612.11
5.2.20.0050.03712.13
5.2.10.0070.02912.07
5.2.00.0100.03012.04
5.1.60.0090.02611.92
5.1.50.0050.03411.92
5.1.40.0050.02311.92
5.1.30.0080.03311.92
5.1.20.0110.03511.92
5.1.10.0050.03511.92
5.1.00.0100.02811.92
5.0.50.0030.02011.92
5.0.40.0060.02711.92
5.0.30.0110.03311.92
5.0.20.0080.01511.92
5.0.10.0060.02411.92
5.0.00.0050.03511.92
4.4.90.0040.01911.92
4.4.80.0090.01511.92
4.4.70.0050.01911.92
4.4.60.0030.02011.92
4.4.50.0090.01411.92
4.4.40.0020.03011.92
4.4.30.0020.02011.92
4.4.20.0030.02011.92
4.4.10.0090.01211.92
4.4.00.0060.02211.92
4.3.110.0040.01811.92
4.3.100.0040.01911.92
4.3.90.0050.01811.92
4.3.80.0060.02811.92
4.3.70.0030.02011.92
4.3.60.0050.01811.92
4.3.50.0000.02011.92
4.3.40.0020.03011.92
4.3.30.0020.02011.92
4.3.20.0060.02011.92
4.3.10.0090.01311.92
4.3.00.0050.01711.92

preferences:
43.9 ms | 400 KiB | 5 Q