3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str2 = "ayC0zXLnDP26WNV9FMObB0u7G4Wij+Ig0XRAQK/T4VI659bV9oIxBoEzwJVYIvhTSM6p7w=="; var_dump(mb_detect_encoding($str2, 'CP936')); var_dump(mb_detect_encoding($str2, 'EUC-CN')); var_dump(mb_detect_encoding($str2, '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)
8.3.60.0090.00918.31
8.3.50.0270.00721.96
8.3.40.0090.00618.67
8.3.30.0130.00019.02
8.3.20.0000.00820.07
8.3.10.0000.00721.83
8.3.00.0080.00022.35
8.2.180.0110.01118.50
8.2.170.0060.01222.96
8.2.160.0030.01218.90
8.2.150.0070.00325.66
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0080.00017.63
8.2.110.0060.00321.29
8.2.100.0080.00417.88
8.2.90.0080.00019.36
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0040.00417.80
8.2.50.0040.00418.07
8.2.40.0030.00718.32
8.2.30.0040.00418.18
8.2.20.0040.00417.78
8.2.10.0070.00018.17
8.2.00.0000.00818.16
8.1.280.0110.00425.92
8.1.270.0060.00324.02
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00023.96
8.1.230.0090.00317.75
8.1.220.0040.00417.79
8.1.210.0030.00518.77
8.1.200.0030.00717.60
8.1.190.0060.00317.38
8.1.180.0030.00518.10
8.1.170.0000.00818.52
8.1.160.0000.00822.08
8.1.150.0030.00518.91
8.1.140.0000.00817.57
8.1.130.0030.00317.81
8.1.120.0040.00417.62
8.1.110.0030.00317.57
8.1.100.0040.00417.59
8.1.90.0080.00017.49
8.1.80.0030.00317.45
8.1.70.0000.00717.55
8.1.60.0060.00317.63
8.1.50.0050.00317.54
8.1.40.0050.00517.52
8.1.30.0050.00317.71
8.1.20.0040.00417.73
8.1.10.0050.00317.64
8.1.00.0060.00317.69
8.0.300.0070.00019.15
8.0.290.0040.00416.63
8.0.280.0000.00718.50
8.0.270.0030.00317.27
8.0.260.0060.00017.20
8.0.250.0030.00616.98
8.0.240.0000.00716.90
8.0.230.0070.00316.88
8.0.220.0030.00316.96
8.0.210.0040.00416.93
8.0.200.0030.00316.93
8.0.190.0030.00717.00
8.0.180.0050.00216.86
8.0.170.0030.00616.97
8.0.160.0000.00716.71
8.0.150.0040.00416.98
8.0.140.0080.00016.79
8.0.130.0030.00313.37
8.0.120.0040.00416.81
8.0.110.0000.00816.84
8.0.100.0080.00016.81
8.0.90.0070.00017.00
8.0.80.0080.00817.00
8.0.70.0050.00216.88
8.0.60.0040.00416.85
8.0.50.0040.00416.84
8.0.30.0070.01017.13
8.0.20.0100.00817.40
8.0.10.0030.00517.04
8.0.00.0090.00916.80
7.4.330.0020.00215.08
7.4.320.0060.00016.65
7.4.300.0000.00616.65
7.4.290.0030.00316.54
7.4.280.0030.00616.62
7.4.270.0070.00416.63
7.4.260.0040.00416.46
7.4.250.0000.00716.48
7.4.240.0020.00616.56
7.4.230.0000.00716.77
7.4.220.0090.00916.67
7.4.210.0040.01516.71
7.4.200.0000.00716.46
7.4.160.0060.01016.63
7.4.150.0150.00417.40
7.4.140.0130.01117.86
7.4.130.0050.01216.42
7.4.120.0100.00716.64
7.4.110.0070.01016.64
7.4.100.0110.00816.43
7.4.90.0120.01216.46
7.4.80.0030.01319.39
7.4.70.0060.01016.55
7.4.60.0160.00016.40
7.4.50.0040.00416.33
7.4.40.0120.00416.40
7.4.30.0090.00616.39
7.4.00.0070.00714.68
7.3.330.0030.00313.17
7.3.320.0000.00513.02
7.3.310.0000.00816.31
7.3.300.0060.00016.33
7.3.290.0100.00716.27
7.3.280.0090.00816.26
7.3.270.0060.00917.40
7.3.260.0070.01016.46
7.3.250.0130.00716.40
7.3.240.0120.00616.49
7.3.230.0070.01016.39
7.3.210.0150.00916.21
7.3.200.0060.01219.39
7.3.190.0100.01016.30
7.3.180.0030.01316.54
7.3.170.0080.01216.42
7.3.160.0090.00616.40
7.3.100.0080.00514.91
7.3.90.0060.00914.46
7.3.80.0050.00914.59
7.3.70.0030.01214.48
7.3.60.0030.01014.65
7.3.50.0080.00414.45
7.3.40.0080.00814.63
7.3.30.0080.00814.73
7.3.20.0070.00816.62
7.3.10.0310.00816.18
7.3.00.0750.00715.67
7.2.330.0070.01116.57
7.2.320.0090.00916.45
7.2.310.0060.01216.24
7.2.300.0070.01116.49
7.2.290.0150.00616.27
7.2.230.0080.00514.77
7.2.220.0070.00714.63
7.2.210.0120.00314.69
7.2.200.0110.00314.60
7.2.190.0060.00814.70
7.2.180.0110.00814.88
7.2.170.0090.00314.83
7.2.160.0070.00914.86
7.2.150.0050.01116.82
7.2.140.0060.00816.70
7.2.130.0420.00915.89
7.2.120.0840.00915.97
7.2.110.0860.00915.99
7.2.100.0630.01115.92
7.2.90.0680.00815.97
7.2.80.0650.00815.97
7.2.70.0360.00916.00
7.2.60.0340.01015.97
7.2.50.0330.00915.96
7.2.40.0390.00816.42
7.2.30.0770.00816.37
7.2.20.0510.01016.56
7.2.10.0500.00916.51
7.2.00.0370.01016.53
7.1.320.0180.00015.56
7.1.310.0130.00315.70
7.1.300.0090.00615.61
7.1.290.0060.01115.48
7.1.280.0050.00715.65
7.1.270.0070.00915.65
7.1.260.0060.00615.80
7.1.250.0490.00815.00
7.1.240.0860.00815.02
7.1.230.0710.00915.05
7.1.220.0790.00915.03
7.1.210.0770.00915.08
7.1.200.0430.00714.97
7.1.190.0470.00614.97
7.1.180.0440.00815.02
7.1.170.0390.00914.96
7.1.160.0680.00815.40
7.1.150.0470.00715.38
7.1.140.0680.00915.53
7.1.130.0620.00815.50
7.1.120.0600.00715.55
7.1.110.0650.00715.35
7.1.100.0410.01015.34
7.1.90.0520.01015.38
7.1.80.0450.00915.36
7.1.70.0470.00815.02
7.1.60.0400.01020.34
7.1.50.0570.00720.36
7.1.40.0460.01120.20
7.1.30.0430.00920.25
7.1.20.0410.01020.32
7.1.10.0380.00914.98
7.1.00.0330.00914.99
7.0.330.1030.00814.56
7.0.320.0900.00414.58
7.0.310.0540.00914.48
7.0.300.0400.00714.46
7.0.290.0460.01015.00
7.0.280.0400.00814.56
7.0.270.0450.00815.10
7.0.260.0390.00815.13
7.0.250.0450.00914.95
7.0.240.0480.00915.01
7.0.230.0480.00915.05
7.0.220.0420.00814.98
7.0.210.0480.00814.71
7.0.200.0310.00814.66
7.0.190.0400.00814.73
7.0.180.0400.00914.53
7.0.170.0360.00914.53
7.0.160.0430.00714.54
7.0.150.0670.01014.56
7.0.140.0410.01014.62
7.0.130.0390.00814.71
7.0.120.0690.00714.61
7.0.110.0360.00914.60
7.0.100.0360.00914.55
7.0.90.0320.00814.58
7.0.80.0330.00914.55
7.0.70.0290.00914.67
7.0.60.0300.00814.58
7.0.50.0370.00814.70
7.0.40.0270.01014.51
7.0.30.0350.00814.48
7.0.20.0310.00814.39
7.0.10.0290.00714.57
7.0.00.0320.01114.47
5.6.400.0070.01214.18
5.6.390.0110.00814.10
5.6.380.0130.00914.27
5.6.370.0130.01014.32
5.6.360.0100.01114.30
5.6.350.0140.00714.31
5.6.340.0100.00814.29
5.6.330.0140.00914.35
5.6.320.0160.00914.21
5.6.310.0110.01014.24
5.6.300.0150.02716.11
5.6.290.0140.02416.30
5.6.280.0160.02116.15
5.6.270.0120.02816.24
5.6.260.0140.02416.25
5.6.250.0150.02516.30
5.6.240.0150.02416.29
5.6.230.0140.02216.26
5.6.220.0130.02416.18
5.6.210.0140.02416.22
5.6.200.0120.02516.23
5.6.190.0150.02316.17
5.6.180.0150.02216.13
5.6.170.0140.02516.14
5.6.160.0150.02216.27
5.6.150.0110.02616.21
5.6.140.0130.02316.16
5.6.130.0170.02616.20
5.6.120.0140.02416.19
5.6.110.0150.02616.14
5.6.100.0110.02816.21
5.6.90.0140.02616.22
5.6.80.0140.02615.94
5.6.70.0160.02316.00
5.6.60.0120.02515.95
5.6.50.0140.02115.99
5.6.40.0170.02415.98
5.6.30.0130.02515.99
5.6.20.0120.02415.97
5.6.10.0140.02715.94
5.6.00.0150.02415.90
5.5.380.0110.02213.87
5.5.370.0090.02613.89
5.5.360.0110.02313.81
5.5.350.0120.02413.80
5.5.340.0130.02213.98
5.5.330.0130.02514.01
5.5.320.0130.02214.05
5.5.310.0120.02614.07
5.5.300.0120.02614.04
5.5.290.0120.02413.97
5.5.280.0120.02514.02
5.5.270.0150.02513.97
5.5.260.0140.02414.04
5.5.250.0140.02413.91
5.5.240.0150.02213.81
5.5.230.0100.02313.73
5.5.220.0110.02313.81
5.5.210.0120.02013.89
5.5.200.0140.02113.76
5.5.190.0120.02313.83
5.5.180.0130.02313.87
5.5.170.0100.00612.25
5.5.160.0130.02313.79
5.5.150.0120.02213.81
5.5.140.0130.02013.80
5.5.130.0090.02213.71
5.5.120.0100.02113.84
5.5.110.0140.02213.80
5.5.100.0110.02413.73
5.5.90.0120.02513.80
5.5.80.0110.02313.75
5.5.70.0110.02413.75
5.5.60.0130.02213.77
5.5.50.0110.02313.73
5.5.40.0140.02513.62
5.5.30.0110.02413.76
5.5.20.0100.02313.80
5.5.10.0100.02413.63
5.5.00.0120.02513.71
5.4.450.0120.02513.78
5.4.440.0110.02413.79
5.4.430.0090.02313.81
5.4.420.0110.02313.74
5.4.410.0130.01913.81
5.4.400.0100.02113.62
5.4.390.0120.02413.67
5.4.380.0120.01913.60
5.4.370.0120.02213.73
5.4.360.0110.02313.67
5.4.350.0100.02213.66
5.4.340.0090.02513.68
5.4.330.0100.00611.42
5.4.320.0100.02313.62
5.4.310.0100.02513.72
5.4.300.0120.02213.69
5.4.290.0100.02313.66
5.4.280.0120.02113.63
5.4.270.0100.02213.65
5.4.260.0110.02113.68
5.4.250.0120.02113.59
5.4.240.0130.02113.68
5.4.230.0120.02013.61
5.4.220.0120.02113.63
5.4.210.0110.02313.63
5.4.200.0080.02213.64
5.4.190.0110.02113.58
5.4.180.0100.02113.63
5.4.170.0110.02413.67
5.4.160.0090.02213.69
5.4.150.0110.02013.66
5.4.140.0100.02112.91
5.4.130.0090.02012.87
5.4.120.0120.02212.84
5.4.110.0110.02212.84
5.4.100.0130.01712.92
5.4.90.0120.02312.90
5.4.80.0110.01912.87
5.4.70.0120.02012.86
5.4.60.0090.02012.80
5.4.50.0100.02112.86
5.4.40.0090.02112.86
5.4.30.0120.02212.85
5.4.20.0100.02012.87
5.4.10.0120.02112.88
5.4.00.0110.02212.71

preferences:
63.98 ms | 401 KiB | 5 Q