3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str2 = "T��D��ƽ�"; echo mb_detect_encoding($str2);

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)
8.3.60.0110.00716.38
8.3.50.0100.00716.09
8.3.40.0120.00318.76
8.3.30.0040.01118.59
8.3.20.0070.00020.26
8.3.10.0040.00423.52
8.3.00.0100.00017.47
8.2.180.0060.01216.75
8.2.170.0110.00422.96
8.2.160.0100.01020.39
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0080.00021.17
8.2.120.0050.00326.35
8.2.110.0070.00322.23
8.2.100.0080.00417.66
8.2.90.0080.00017.75
8.2.80.0050.00318.80
8.2.70.0040.00417.63
8.2.60.0050.00318.05
8.2.50.0030.00618.10
8.2.40.0040.00420.78
8.2.30.0060.00320.96
8.2.20.0050.00318.05
8.2.10.0070.00018.09
8.2.00.0030.00618.08
8.1.280.0190.00025.92
8.1.270.0050.00223.84
8.1.260.0000.00726.35
8.1.250.0030.00628.09
8.1.240.0150.00724.02
8.1.230.0080.00417.59
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0050.00317.23
8.1.190.0080.00017.22
8.1.180.0000.00718.10
8.1.170.0040.00418.59
8.1.160.0000.00818.96
8.1.150.0000.00818.93
8.1.140.0020.00519.48
8.1.130.0070.00018.75
8.1.120.0000.00817.37
8.1.110.0040.00417.43
8.1.100.0040.00417.46
8.1.90.0040.00417.49
8.1.80.0000.00817.46
8.1.70.0000.00717.39
8.1.60.0000.00917.58
8.1.50.0060.00317.46
8.1.40.0000.00717.49
8.1.30.0000.00817.65
8.1.20.0060.00317.55
8.1.10.0040.00417.46
8.1.00.0040.00417.49
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.54
8.0.270.0000.00717.22
8.0.260.0000.00616.80
8.0.250.0000.00617.01
8.0.240.0040.00416.96
8.0.230.0060.00316.82
8.0.220.0060.00016.81
8.0.210.0030.00316.84
8.0.200.0030.00316.99
8.0.190.0080.00316.94
8.0.180.0040.00416.89
8.0.170.0050.00316.81
8.0.160.0050.00216.79
8.0.150.0000.00816.67
8.0.140.0000.00816.83
8.0.130.0060.00013.34
8.0.120.0040.00416.85
8.0.110.0000.00716.89
8.0.100.0080.00016.94
8.0.90.0070.00016.76
8.0.80.0070.01016.92
8.0.70.0080.00016.66
8.0.60.0000.00816.75
8.0.50.0040.00416.76
8.0.30.0070.01216.96
8.0.20.0090.01217.40
8.0.10.0000.00716.96
8.0.00.0070.01016.68
7.4.330.0050.00015.55
7.4.320.0000.00716.44
7.4.300.0060.00016.55
7.4.290.0030.00316.45
7.4.280.0040.00416.38
7.4.270.0030.00316.50
7.4.260.0050.00013.25
7.4.250.0070.00016.48
7.4.240.0080.00016.39
7.4.230.0000.00716.57
7.4.220.0030.01416.54
7.4.210.0090.00516.49
7.4.200.0030.00316.49
7.4.160.0100.00816.52
7.4.150.0190.00017.40
7.4.140.0130.00717.86
7.4.130.0060.01316.51
7.4.120.0130.00616.47
7.4.110.0120.00916.46
7.4.100.0070.01016.57
7.4.90.0120.00616.41
7.4.80.0060.01519.39
7.4.70.0080.00816.57
7.4.60.0090.00616.39
7.4.50.0100.00316.19
7.4.40.0100.00616.34
7.4.30.0060.00916.47
7.4.00.0120.00314.71
7.3.330.0030.00312.99
7.3.320.0050.00013.06
7.3.310.0000.00616.02
7.3.300.0060.00016.20
7.3.290.0000.00716.23
7.3.280.0090.00816.20
7.3.270.0100.00517.40
7.3.260.0060.01216.38
7.3.250.0090.01016.41
7.3.240.0080.00816.22
7.3.230.0100.00716.48
7.3.210.0090.00616.28
7.3.200.0100.00716.39
7.3.190.0080.00816.41
7.3.180.0000.01616.49
7.3.170.0100.00616.28
7.3.160.0100.00716.20
7.3.120.0090.00914.62
7.3.110.0050.00614.88
7.3.100.0030.00714.45
7.3.90.0080.00814.63
7.3.80.0040.01115.13
7.3.70.0000.01714.80
7.3.60.0090.00314.70
7.3.50.0000.01314.76
7.3.40.0070.00714.67
7.3.30.0040.00714.69
7.3.20.0080.00416.63
7.3.10.0050.00916.54
7.3.00.0060.00616.59
7.2.330.0120.00616.32
7.2.320.0040.01216.24
7.2.310.0120.00616.58
7.2.300.0170.00016.33
7.2.290.0070.01016.43
7.2.240.0100.00714.79
7.2.230.0000.01614.73
7.2.220.0060.00915.04
7.2.210.0000.01015.07
7.2.200.0070.00714.80
7.2.190.0130.00014.75
7.2.180.0100.00314.81
7.2.170.0050.00514.95
7.2.160.0030.01314.99
7.2.150.0070.00716.55
7.2.140.0040.00816.78
7.2.130.0050.00916.90
7.2.120.0070.00616.75
7.2.110.0030.01216.74
7.2.100.0070.00716.83
7.2.90.0050.00716.79
7.2.80.0080.00516.69
7.2.70.0060.00816.76
7.2.60.0030.00916.87
7.2.50.0070.00616.75
7.2.40.0020.01216.94
7.2.30.0050.00916.78
7.2.20.0040.01116.76
7.2.10.0030.00816.57
7.2.00.0060.00717.44
7.1.330.0070.00715.78
7.1.320.0100.00615.86
7.1.310.0120.00315.58
7.1.300.0060.00615.72
7.1.290.0040.00915.71
7.1.280.0030.01015.80
7.1.270.0060.00615.80
7.1.260.0000.01215.73
7.1.250.0090.00315.60
7.1.200.0000.01115.47
7.1.100.0060.00617.95
7.1.70.0180.00615.41
7.1.60.0310.00333.33
7.1.50.0290.01033.00
7.1.40.0280.01132.51
7.1.30.0290.01032.61
7.1.20.0260.01032.62
7.1.10.0110.01114.73
7.1.00.0200.00314.78
7.0.200.0190.00614.86
7.0.190.0140.00714.86
7.0.180.0130.01014.24
7.0.170.0130.00714.27
7.0.160.0170.00714.22
7.0.150.0160.00614.35
7.0.140.0160.00614.31
7.0.130.0150.00614.60
7.0.120.0110.01114.72
7.0.110.0170.00714.62
7.0.100.0190.00314.62
7.0.90.0150.00914.33
7.0.80.0170.00714.66
7.0.70.0140.01714.30
7.0.60.0180.00914.24
7.0.50.0170.00714.51
7.0.40.0270.00714.50
7.0.30.0200.01614.66
7.0.20.0200.00714.50
7.0.10.0190.01314.70
7.0.00.0300.01114.44

preferences:
39.18 ms | 401 KiB | 5 Q