3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_strtolower('漢字', 'CP1252'));

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)
8.4.120.0060.00320.40
8.4.110.0110.00922.43
8.4.100.0120.00817.58
8.4.90.0120.00818.50
8.4.80.0050.00517.84
8.4.70.0050.00317.57
8.4.60.0150.00820.47
8.4.50.0140.00620.36
8.4.40.0130.00719.46
8.4.30.0120.00320.30
8.4.20.0090.00617.78
8.4.10.0080.00020.00
8.3.250.0110.00819.11
8.3.240.0080.01116.47
8.3.230.0110.00716.50
8.3.220.0040.00416.96
8.3.210.0040.00416.42
8.3.200.0110.00916.60
8.3.190.0070.01117.16
8.3.180.0120.00616.45
8.3.170.0140.00716.98
8.3.160.0100.00718.31
8.3.150.0070.00720.63
8.3.140.0040.00416.98
8.3.130.0090.00918.45
8.3.120.0060.00318.93
8.3.110.0030.00620.94
8.3.100.0060.00616.39
8.3.90.0000.00826.77
8.3.80.0070.00316.63
8.3.70.0150.00016.63
8.3.60.0040.01118.31
8.3.50.0040.01119.99
8.3.40.0040.01118.72
8.3.30.0120.00918.80
8.3.20.0070.00324.18
8.3.10.0030.00524.66
8.3.00.0050.00226.16
8.2.290.0090.01020.30
8.2.280.0030.00618.80
8.2.270.0140.00417.21
8.2.260.0120.00316.57
8.2.250.0080.00016.99
8.2.240.0040.00417.30
8.2.230.0100.00022.58
8.2.220.0050.00324.06
8.2.210.0000.01026.77
8.2.200.0040.00716.75
8.2.190.0140.00718.54
8.2.180.0120.00325.92
8.2.170.0110.00319.21
8.2.160.0100.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0030.00619.89
8.2.110.0070.00422.33
8.2.100.0090.00317.91
8.2.90.0000.00819.35
8.2.80.0040.00419.77
8.2.70.0030.00517.75
8.2.60.0090.00018.16
8.2.50.0000.00818.07
8.2.40.0030.00617.72
8.2.30.0000.00818.18
8.2.20.0000.00720.74
8.2.10.0040.00418.07
8.2.00.0040.00419.36
8.1.330.0060.01223.47
8.1.320.0120.00716.02
8.1.310.0040.00416.65
8.1.300.0060.00918.26
8.1.290.0060.00330.84
8.1.280.0070.00725.92
8.1.270.0060.00323.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00320.62
8.1.230.0090.00317.76
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.48
8.1.190.0080.00017.23
8.1.180.0000.00918.10
8.1.170.0060.00318.81
8.1.160.0040.00418.93
8.1.150.0040.00418.76
8.1.140.0040.00417.48
8.1.130.0030.00319.07
8.1.120.0040.00417.41
8.1.110.0000.00717.42
8.1.100.0050.00317.54
8.1.90.0000.00817.47
8.1.80.0040.00417.53
8.1.70.0000.00717.46
8.1.60.0210.00417.47
8.1.50.0110.00517.46
8.1.40.0130.00517.57
8.1.30.0220.00017.73
8.1.20.0200.00017.66
8.1.10.0240.00017.52
8.1.00.0180.00517.42
8.0.300.0050.00318.77
8.0.290.0040.00417.18
8.0.280.0030.00518.47
8.0.270.0070.00016.63
8.0.260.0040.00418.28
8.0.250.0030.00316.89
8.0.240.0030.00316.88
8.0.230.0000.00716.89
8.0.220.0030.00316.86
8.0.210.0000.00716.88
8.0.200.0030.00316.88
8.0.190.0160.00616.82
8.0.180.0180.00416.68
8.0.170.0180.00016.82
8.0.160.0210.00016.75
8.0.150.0150.00816.78
8.0.140.0170.00616.57
8.0.130.0160.00616.72
8.0.120.0160.00616.65
8.0.110.0220.00016.80
8.0.100.0160.00616.75
8.0.90.0120.00816.62
8.0.80.0140.00616.80
8.0.70.0230.00016.66
8.0.60.0120.01216.76
8.0.50.0190.00516.87
8.0.30.0170.00616.59
8.0.20.0080.01216.79
8.0.10.0080.00416.60
7.4.330.0000.00615.55
7.4.320.0020.00516.45
7.4.300.0030.00316.43
7.4.290.0030.00716.50
7.4.280.0130.00016.39
7.4.270.0050.00816.50
7.4.260.0140.00316.40
7.4.250.0100.00216.09
7.4.240.0180.00316.39
7.4.230.0160.00816.37
7.4.220.0180.00316.41
7.4.210.0220.00016.51
7.4.200.0180.00416.40
7.4.190.0150.00716.54
7.4.180.0170.00016.43
7.4.160.0080.00816.35
7.4.150.0080.00416.41
7.4.140.0070.00616.46
7.4.130.0100.00416.21
7.4.120.0060.00816.37
7.4.110.0130.00316.44
7.4.100.0160.00416.47
7.4.90.0220.00016.35
7.4.80.0210.00016.47
7.4.70.0170.00516.27
7.4.60.0130.00916.34
7.4.50.0120.00016.17
7.4.40.0140.00016.03
7.4.30.0040.00816.43
7.4.20.0050.00816.47
7.4.10.0100.00316.20
7.4.00.0100.00516.42

preferences:
32.08 ms | 403 KiB | 5 Q