3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'Павел Дуров'; mb_strtolower($a); print_r(preg_quote($a));

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)
8.3.70.0120.00318.08
8.3.60.0160.00316.50
8.3.50.0110.00916.52
8.3.40.0040.01118.35
8.3.30.0060.00918.64
8.3.20.0060.00320.07
8.3.10.0040.00423.66
8.3.00.0080.00022.14
8.2.180.0160.00016.63
8.2.170.0090.00622.96
8.2.160.0080.00618.82
8.2.150.0050.00325.66
8.2.140.0060.00324.66
8.2.130.0040.00421.14
8.2.120.0050.00326.35
8.2.110.0140.00320.49
8.2.100.0070.00417.84
8.2.90.0000.00819.18
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0050.00317.80
8.2.50.0040.00418.10
8.2.40.0030.00520.46
8.2.30.0050.00321.03
8.2.20.0000.00817.97
8.2.10.0030.00517.99
8.2.00.0000.00817.89
8.1.280.0180.00025.92
8.1.270.0120.00322.05
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00022.00
8.1.230.0110.00020.85
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0060.00317.35
8.1.190.0040.00417.23
8.1.180.0000.00718.10
8.1.170.0030.00518.60
8.1.160.0030.00319.07
8.1.150.0040.00418.98
8.1.140.0000.00819.62
8.1.130.0000.00718.83
8.1.120.0050.00217.42
8.1.110.0030.00617.42
8.1.100.0030.00517.35
8.1.90.0070.00017.52
8.1.80.0030.00317.43
8.1.70.0040.00417.44
8.1.60.0030.00617.45
8.1.50.0040.00417.49
8.1.40.0050.00317.50
8.1.30.0050.00317.59
8.1.20.0040.00417.54
8.1.10.0000.00917.54
8.1.00.0040.00417.42
8.0.300.0030.00318.78
8.0.290.0000.00816.63
8.0.280.0050.00318.43
8.0.270.0000.00717.29
8.0.260.0030.00316.80
8.0.250.0030.00516.98
8.0.240.0030.00316.91
8.0.230.0070.00017.00
8.0.220.0050.00216.91
8.0.210.0000.00716.97
8.0.200.0030.00316.83
8.0.190.0080.00016.84
8.0.180.0040.00416.90
8.0.170.0030.00316.80
8.0.160.0040.00416.94
8.0.150.0000.00716.84
8.0.140.0000.00816.82
8.0.130.0040.00413.27
8.0.120.0040.00516.82
8.0.110.0000.00816.86
8.0.100.0070.00016.92
8.0.90.0050.00316.84
8.0.80.0060.01616.88
8.0.70.0040.00416.87
8.0.60.0030.00516.95
8.0.50.0000.00716.92
8.0.30.0080.01016.94
8.0.20.0100.01117.40
8.0.10.0030.00616.98
8.0.00.0070.01116.77
7.4.330.0000.00615.55
7.4.320.0000.00716.47
7.4.300.0060.00016.63
7.4.290.0030.00516.59
7.4.280.0030.00516.43
7.4.270.0040.00416.57
7.4.260.0050.00216.33
7.4.250.0000.00716.50
7.4.240.0000.00816.48
7.4.230.0060.00016.63
7.4.220.0110.01116.59
7.4.210.0060.01116.59
7.4.200.0040.00416.70
7.4.160.0070.01016.46
7.4.150.0030.01517.40
7.4.140.0110.00817.86
7.4.130.0130.00916.37
7.4.120.0070.01316.43
7.4.110.0030.01316.50
7.4.100.0180.00016.49
7.4.90.0030.01216.57
7.4.80.0140.00319.39
7.4.70.0050.01116.41
7.4.60.0060.01016.43
7.4.50.0090.00616.23
7.4.40.0060.00916.38
7.4.30.0120.00616.44
7.4.00.0070.01115.16
7.3.330.0000.00613.15
7.3.320.0020.00213.05
7.3.310.0000.00816.19
7.3.300.0000.00616.24
7.3.290.0030.00316.27
7.3.280.0070.01016.25
7.3.270.0120.00817.40
7.3.260.0100.01016.15
7.3.250.0080.01216.35
7.3.240.0110.00816.39
7.3.230.0120.00616.14
7.3.210.0030.01316.56
7.3.200.0130.00716.39
7.3.190.0180.00316.57
7.3.180.0120.00616.24
7.3.170.0030.01316.19
7.3.160.0000.01616.35
7.2.330.0070.01016.46
7.2.320.0100.00716.36
7.2.310.0170.00316.47
7.2.300.0100.00616.31
7.2.290.0100.00716.31
7.2.90.1070.01714.57
7.2.80.1160.00314.70
7.2.70.0040.01114.81
7.2.60.0140.00415.04
7.2.50.0170.00014.99
7.2.40.0070.01114.93
7.2.30.1240.01014.95
7.2.20.0150.00414.86
7.2.10.0150.00414.65
7.2.00.0070.01114.98
7.1.210.1920.01014.00
7.1.200.0160.00413.78
7.1.190.0060.00913.75
7.1.180.0890.00713.73
7.1.170.0660.00313.91
7.1.160.0090.00913.91
7.1.150.0120.00813.89
7.1.140.1660.00313.73
7.1.130.1110.00614.02
7.1.120.0110.00713.63
7.1.110.0150.00013.92
7.1.100.2490.00713.80
7.1.90.0350.00614.06
7.1.80.1310.01313.96
7.1.70.2110.00313.82
7.1.60.0330.00932.00
7.1.50.0390.00431.81
7.1.40.0620.00731.70
7.1.30.2050.00331.68
7.1.20.0220.01631.90
7.1.10.0420.00013.81
7.1.00.0150.00013.63
7.0.310.0180.00713.65
7.0.300.0420.00613.48
7.0.290.0080.00813.52
7.0.280.0090.00513.46
7.0.270.0070.00713.61
7.0.260.0800.00913.59
7.0.250.1850.00713.55
7.0.240.2400.00313.74
7.0.230.1710.00313.53
7.0.220.1360.00313.36
7.0.210.0090.00513.58
7.0.200.2010.01013.61
7.0.190.0170.00213.55
7.0.180.0120.00613.61
7.0.170.1500.01013.66
7.0.160.0160.00013.55
7.0.150.0160.00013.48
7.0.140.0220.00013.74
7.0.130.0260.00413.80
7.0.120.0120.00913.37
7.0.110.0550.00613.69
7.0.100.0490.00813.41
7.0.90.0180.00013.75
7.0.80.0120.00613.25
7.0.70.0190.00013.66
7.0.60.0250.00613.58
7.0.50.0120.00713.66
7.0.40.0320.00913.39
7.0.30.0110.00413.58
7.0.20.0320.00713.45
7.0.10.0110.00713.67
7.0.00.0690.00013.53

preferences:
31.22 ms | 401 KiB | 5 Q