3v4l.org

run code in 300+ PHP versions simultaneously
<?php $latin1 = "\xD6wn"; $utf8 = "\xc3\x96wn"; var_dump(mb_check_encoding($latin1, 'UTF-8')); var_dump(mb_check_encoding($utf8, '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)
8.4.140.0120.00817.42
8.4.130.0100.01018.95
8.4.120.0100.01024.00
8.4.110.0050.00522.54
8.4.100.0030.00618.93
8.4.90.0070.00518.65
8.4.80.0060.00317.85
8.4.70.0050.00317.45
8.4.60.0130.00718.98
8.4.50.0130.00617.52
8.4.40.0060.00920.39
8.4.30.0130.00717.34
8.4.20.0070.01319.23
8.4.10.0030.00619.57
8.3.270.0120.00716.40
8.3.260.0100.00916.27
8.3.250.0100.00918.76
8.3.240.0050.00317.00
8.3.230.0130.00616.48
8.3.220.0040.00317.04
8.3.210.0100.00416.52
8.3.200.0050.00416.48
8.3.190.0110.00619.09
8.3.180.0080.01016.67
8.3.170.0140.00420.61
8.3.160.0180.00416.48
8.3.150.0140.00416.74
8.3.140.0150.00316.41
8.3.130.0080.00016.79
8.3.120.0040.00418.98
8.3.110.0080.00020.94
8.3.100.0040.00418.30
8.3.90.0050.00326.77
8.3.80.0100.00017.97
8.3.70.0070.01118.25
8.3.60.0060.01218.18
8.3.50.0100.00418.17
8.3.40.0060.00918.72
8.3.30.0120.00418.51
8.3.20.0070.01120.29
8.3.10.0070.00419.30
8.3.00.0030.00523.57
8.2.290.0080.00020.41
8.2.280.0110.00918.30
8.2.270.0130.00616.74
8.2.260.0140.00317.31
8.2.250.0080.00018.46
8.2.240.0120.00618.65
8.2.230.0050.00522.58
8.2.220.0050.00316.37
8.2.210.0030.00626.77
8.2.200.0030.00718.29
8.2.190.0090.00616.63
8.2.180.0100.01317.92
8.2.170.0070.00722.96
8.2.160.0030.01022.15
8.2.150.0030.01625.66
8.2.140.0050.00324.66
8.2.130.0000.00826.16
8.2.120.0000.00819.82
8.2.110.0030.00620.47
8.2.100.0060.00617.83
8.2.90.0000.01018.03
8.2.80.0000.00917.97
8.2.70.0060.00318.04
8.2.60.0040.00417.91
8.2.50.0030.00518.10
8.2.40.0070.00420.41
8.2.30.0080.00019.25
8.2.20.0040.00417.87
8.2.10.0050.00317.98
8.2.00.0070.00017.99
8.1.330.0120.00622.01
8.1.320.0060.00315.97
8.1.310.0040.00416.90
8.1.300.0110.00716.24
8.1.290.0060.00330.84
8.1.280.0180.00425.92
8.1.270.0040.00420.08
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00020.53
8.1.230.0070.00420.96
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0000.00817.09
8.1.180.0040.00418.10
8.1.170.0110.00018.58
8.1.160.0050.00318.88
8.1.150.0000.00718.93
8.1.140.0030.00319.03
8.1.130.0070.00018.96
8.1.120.0000.00717.31
8.1.110.0000.00717.48
8.1.100.0000.00817.51
8.1.90.0000.00717.48
8.1.80.0040.00417.39
8.1.70.0000.01217.41
8.1.60.0080.00017.46
8.1.50.0050.00317.52
8.1.40.0070.00017.42
8.1.30.0000.00717.62
8.1.20.0030.00617.61
8.1.10.0000.00817.53
8.1.00.0040.00417.51
8.0.300.0070.00019.73
8.0.290.0060.00316.63
8.0.280.0030.00318.40
8.0.270.0030.00317.21
8.0.260.0030.00316.82
8.0.250.0050.00216.82
8.0.240.0030.00316.93
8.0.230.0080.00416.91
8.0.220.0000.00716.85
8.0.210.0070.00016.75
8.0.200.0060.00016.84
8.0.190.0000.00816.86
8.0.180.0070.00016.89
8.0.170.0080.00016.94
8.0.160.0040.00416.84
8.0.150.0070.00016.81
8.0.140.0070.00016.82
8.0.130.0000.00613.41
8.0.120.0000.00816.86
8.0.110.0040.00416.74
8.0.100.0040.00316.79
8.0.90.0000.00716.89
8.0.80.0050.01016.95
8.0.70.0000.00716.92
8.0.60.0050.00316.81
8.0.50.0000.00716.78
8.0.30.0100.00917.03
8.0.20.0080.01117.40
8.0.10.0000.00716.81
8.0.00.0120.01216.87
7.4.330.0050.00015.55
7.4.320.0070.00016.60
7.4.300.0060.00016.62
7.4.290.0000.00716.45
7.4.280.0080.00016.47
7.4.270.0030.00316.49
7.4.260.0040.00416.47
7.4.250.0070.00016.41
7.4.240.0080.00016.53
7.4.230.0030.00316.43
7.4.220.0030.01516.57
7.4.210.0070.00816.46
7.4.200.0000.00716.60
7.4.160.0070.01116.39
7.4.150.0070.01017.40
7.4.140.0080.01317.86
7.4.130.0060.01216.40
7.4.120.0140.00816.44
7.4.110.0150.00616.43
7.4.100.0060.01016.34
7.4.90.0040.01316.35
7.4.80.0040.01219.39
7.4.70.0160.00316.46
7.4.60.0130.00316.38
7.4.50.0060.00916.25
7.4.40.0110.00716.49
7.4.30.0070.01316.56
7.4.00.0040.01215.02
7.3.330.0060.00013.11
7.3.320.0000.00613.01
7.3.310.0030.00316.14
7.3.300.0040.00416.30
7.3.290.0030.00616.26
7.3.280.0120.00716.20
7.3.270.0030.01617.40
7.3.260.0100.00916.34
7.3.250.0100.01116.27
7.3.240.0090.00716.29
7.3.230.0080.00816.44
7.3.210.0070.01016.13
7.3.200.0120.00316.13
7.3.190.0100.00616.26
7.3.180.0060.00916.25
7.3.170.0060.01016.47
7.3.160.0060.01016.30
7.3.10.0050.00816.46
7.3.00.0060.00616.45
7.2.330.0120.00616.22
7.2.320.0060.01216.47
7.2.310.0080.00816.34
7.2.300.0090.01216.52
7.2.290.0170.00716.30
7.2.130.0030.01016.64
7.2.120.0070.01016.89
7.2.110.0070.00716.78
7.2.100.0090.00316.68
7.2.90.0070.00716.43
7.2.80.0040.00916.50
7.2.70.0000.01516.35
7.2.60.0070.00516.28
7.2.50.0050.00516.88
7.2.40.0070.00716.93
7.2.30.0070.00716.63
7.2.20.0090.00616.84
7.2.10.0000.01016.73
7.2.00.0050.01218.44
7.1.250.0060.00315.80
7.1.200.0040.00715.53
7.1.120.0180.00917.02
7.1.110.0120.01416.28
7.1.100.0160.01216.13
7.1.90.0080.01217.95
7.1.80.0170.01416.03
7.1.70.0220.00715.21
7.1.60.0290.01233.39
7.1.50.0290.01233.13
7.1.40.0410.01032.72
7.1.30.0360.01532.30
7.1.20.0150.02234.42
7.1.10.0210.00614.60
7.1.00.0140.01714.88

preferences:
103.47 ms | 403 KiB | 5 Q