3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str_utf8 = 'Qwww11'; $str_cp1251 = iconv('UTF-8', 'Windows-1251', $str_utf8); var_dump(preg_match('#[а-яА-Я]#u', $str_utf8)); var_dump(preg_match('#[а-яА-Я]#u', $str_cp1251)); echo $str_cp1251; ?>

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)
8.3.70.0120.00416.88
8.3.60.0120.00918.52
8.3.50.0110.00922.06
8.3.40.0140.00018.74
8.3.30.0110.00419.09
8.3.20.0090.00020.34
8.3.10.0050.00322.00
8.3.00.0040.00422.27
8.2.190.0240.01016.58
8.2.180.0060.00916.63
8.2.170.0100.01022.96
8.2.160.0150.00620.89
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00319.86
8.2.110.0030.00722.39
8.2.100.0030.01019.82
8.2.90.0050.00319.22
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0000.00817.93
8.2.50.0050.00318.07
8.2.40.0000.00818.09
8.2.30.0050.00218.14
8.2.20.0000.00817.82
8.2.10.0030.00517.88
8.2.00.0000.00717.94
8.1.280.0120.00625.92
8.1.270.0040.00422.06
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.66
8.1.230.0000.01219.23
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0040.00417.36
8.1.190.0000.00817.55
8.1.180.0040.00418.10
8.1.170.0030.00718.72
8.1.160.0000.00722.07
8.1.150.0070.00018.62
8.1.140.0040.00417.49
8.1.130.0070.00017.83
8.1.120.0100.00017.46
8.1.110.0040.00417.42
8.1.100.0070.00017.43
8.1.90.0000.00717.41
8.1.80.0070.00017.56
8.1.70.0050.00217.55
8.1.60.0040.00417.64
8.1.50.0020.00517.46
8.1.40.0040.00417.59
8.1.30.0020.00517.57
8.1.20.0030.00617.71
8.1.10.0040.00417.57
8.1.00.0040.00417.58
8.0.300.0000.00718.77
8.0.290.0070.00017.05
8.0.280.0040.00418.34
8.0.270.0070.00017.20
8.0.260.0030.00317.00
8.0.250.0030.00317.12
8.0.240.0050.00217.22
8.0.230.0050.00217.05
8.0.220.0030.00317.01
8.0.210.0080.00017.09
8.0.200.0000.00617.04
8.0.190.0040.00417.04
8.0.180.0040.00417.12
8.0.170.0050.00317.14
8.0.160.0040.00417.04
8.0.150.0000.00716.95
8.0.140.0020.00517.01
8.0.130.0000.00513.38
8.0.120.0030.00617.21
8.0.110.0000.01017.23
8.0.100.0060.00317.21
8.0.90.0090.00017.17
8.0.80.0060.01217.17
8.0.70.0000.00817.09
8.0.60.0000.00817.20
8.0.50.0000.00817.15
8.0.30.0160.00917.49
8.0.20.0110.01117.40
8.0.10.0030.00617.25
8.0.00.0100.01016.97
7.4.330.0050.00015.00
7.4.320.0040.00416.79
7.4.300.0030.00316.67
7.4.290.0000.00716.50
7.4.280.0040.00416.71
7.4.270.0060.00016.77
7.4.260.0030.00316.72
7.4.250.0030.00616.88
7.4.240.0040.00416.88
7.4.230.0000.00816.80
7.4.220.0140.01716.99
7.4.210.0100.01016.88
7.4.200.0030.00516.88
7.4.190.0000.00816.95
7.4.160.0100.00716.91
7.4.150.0070.02017.40
7.4.140.0120.00817.86
7.4.130.0110.00816.59
7.4.120.0110.00916.82
7.4.110.0130.00716.50
7.4.100.0000.01916.80
7.4.90.0100.01016.77
7.4.80.0110.00719.39
7.4.70.0130.00716.80
7.4.60.0120.00916.66
7.4.50.0040.00916.74
7.4.40.0050.01419.70
7.4.30.0150.00916.44
7.4.20.0140.01416.32
7.4.10.0070.01715.82
7.4.00.0080.01315.76
7.3.330.0060.00013.05
7.3.320.0060.00013.22
7.3.310.0030.00516.56
7.3.300.0040.00416.48
7.3.290.0030.01316.60
7.3.280.0110.00916.57
7.3.270.0070.01917.40
7.3.260.0130.01016.95
7.3.250.0080.01116.81
7.3.240.0170.00616.59
7.3.230.0090.00916.86
7.3.210.0080.01116.80
7.3.200.0170.00716.68
7.3.190.0060.01316.63
7.3.180.0100.00816.65
7.3.170.0110.00816.87
7.3.160.0090.01416.78
7.3.150.0170.01116.64
7.3.140.0100.01716.45
7.3.130.0080.01215.86
7.3.120.0100.01215.62
7.3.110.0090.01315.81
7.3.100.0120.01015.88
7.3.90.0090.01315.84
7.3.80.0080.01415.74
7.3.70.0110.00815.87
7.3.60.0090.01115.85
7.3.50.0060.01515.76
7.3.40.0160.00815.68
7.3.30.0100.01015.75
7.3.20.0110.01016.70
7.3.10.0110.01116.76
7.3.00.0090.01016.69
7.2.330.0030.01816.78
7.2.320.0100.01616.88
7.2.310.0090.01217.03
7.2.300.0100.01316.95
7.2.290.0160.00716.81
7.2.280.0180.01116.89
7.2.270.0120.01616.69
7.2.260.0110.01116.03
7.2.250.0120.01116.21
7.2.240.0080.01216.11
7.2.230.0100.00916.16
7.2.220.0100.01216.09
7.2.210.0060.01616.00
7.2.200.0070.01616.04
7.2.190.0090.01115.85
7.2.180.0070.01215.99
7.2.170.0090.00916.20
7.2.160.0090.01315.97
7.2.150.0060.01517.13
7.2.140.0100.01416.93
7.2.130.0070.01416.94
7.2.120.0110.01216.96
7.2.110.0100.01416.85
7.2.100.0110.01317.03
7.2.90.0090.01216.85
7.2.80.0100.01017.02
7.2.70.0080.01417.09
7.2.60.0100.00917.09
7.2.50.0120.00616.94
7.2.40.0060.01417.11
7.2.30.0100.01017.12
7.2.20.0090.00617.02
7.2.10.0090.01317.08
7.2.00.0090.01017.90
7.1.330.0080.01315.82
7.1.320.0070.01415.95
7.1.310.0100.01115.90
7.1.300.0070.01515.96
7.1.290.0080.01315.97
7.1.280.0100.01316.03
7.1.270.0150.00715.86
7.1.260.0070.01716.01
7.1.250.0040.02015.94
7.1.240.0060.01415.94
7.1.230.0070.01415.95
7.1.220.0170.00815.79
7.1.210.0180.00715.93
7.1.200.0080.01115.88
7.1.190.0140.00815.94
7.1.180.0100.01015.69
7.1.170.0280.00815.89
7.1.160.0100.01015.83
7.1.150.0040.01415.80
7.1.140.0120.01016.06
7.1.130.0100.01015.90
7.1.120.0080.00815.93
7.1.110.0080.00615.96
7.1.100.0150.00816.88
7.1.90.0130.00715.73
7.1.80.0250.00615.99
7.1.70.0080.00816.42
7.1.60.0080.01417.10
7.1.50.0110.01316.37
7.1.40.0110.00815.70
7.1.30.0060.01315.93
7.1.20.0110.01115.90
7.1.10.0140.00515.89
7.1.00.0070.03218.13
7.0.330.0100.01415.51
7.0.320.0090.01015.54
7.0.310.0110.01415.49
7.0.300.0200.00315.40
7.0.290.0130.00815.62
7.0.280.0100.01015.62
7.0.270.0110.00815.57
7.0.260.0070.00915.84
7.0.250.0100.01015.62
7.0.240.0130.01315.71
7.0.230.0140.00815.72
7.0.220.0110.00715.53
7.0.210.0060.01315.70
7.0.200.0070.00916.08
7.0.190.0060.01315.62
7.0.180.0110.00815.53
7.0.170.0090.00915.72
7.0.160.0100.00815.54
7.0.150.0130.00215.31
7.0.140.0100.02817.77
7.0.130.0120.00415.68
7.0.120.0120.00815.73
7.0.110.0110.01015.62
7.0.100.0060.01115.49
7.0.90.0280.00615.59
7.0.80.0110.00915.58
7.0.70.0090.01015.47
7.0.60.0100.02417.02
7.0.50.0090.01916.40
7.0.40.0140.03316.62
7.0.30.0150.03116.58
7.0.20.0110.02116.54
7.0.10.0160.02016.45
7.0.00.0080.02116.44
5.6.400.0110.01415.26
5.6.390.0110.01215.20
5.6.380.0080.01315.18
5.6.370.0070.01715.02
5.6.360.0110.01115.19
5.6.350.0160.00615.12
5.6.340.0100.00915.21
5.6.330.0070.01515.27
5.6.320.0130.01115.09
5.6.310.0150.00715.27
5.6.300.0120.00815.17
5.6.290.0060.01415.35
5.6.280.0050.03317.17
5.6.270.0100.01115.14
5.6.260.0070.01615.17
5.6.250.0130.00615.14
5.6.240.0070.01315.02
5.6.230.0140.00815.22
5.6.220.0100.00915.30
5.6.210.0100.03417.02
5.6.200.0160.03816.20
5.6.190.0080.02616.95
5.6.180.1270.02116.97
5.6.170.0150.01816.90
5.6.160.0110.03517.06
5.6.150.0060.02516.16
5.6.140.0090.02116.20
5.6.130.0060.02516.23
5.6.120.0100.02217.13
5.6.110.0150.02717.20
5.6.100.0150.02417.16
5.6.90.0080.03017.36
5.6.80.0100.01916.89
5.6.70.0120.03016.92
5.6.60.0080.01115.12
5.6.50.0070.00915.24
5.6.40.0070.01115.16
5.6.30.0120.00815.23
5.6.20.0100.00815.06
5.6.10.0040.01315.17
5.6.00.0050.01615.06
5.5.380.0090.00914.88
5.5.370.0090.01514.99
5.5.360.0110.00915.17
5.5.350.0070.03916.98
5.5.340.0080.03416.10
5.5.330.0100.02816.83
5.5.320.0180.03116.87
5.5.310.0200.02916.90
5.5.300.0060.03616.19
5.5.290.0120.01816.11
5.5.280.0070.02116.89
5.5.270.0060.03917.04
5.5.260.0100.03217.02
5.5.250.0080.02916.95
5.5.240.0090.03216.96
5.5.230.0070.01314.93
5.5.220.0060.01215.12
5.5.210.0100.01015.15
5.5.200.0120.00915.12
5.5.190.0070.01514.98
5.5.180.0110.00915.14
5.5.170.0080.00815.09
5.5.160.0070.01415.07
5.5.150.0090.01115.06
5.5.140.0120.00915.27
5.5.130.0120.01315.05
5.5.120.0110.01014.97
5.5.110.0100.01115.01
5.5.100.0110.00914.99
5.5.90.0120.00715.06
5.5.80.0090.01015.08
5.5.70.0150.00615.08
5.5.60.0030.01915.08
5.5.50.0050.01615.01
5.5.40.0100.01014.99
5.5.30.0090.01214.87
5.5.20.0100.00814.74
5.5.10.0100.00714.76
5.5.00.0050.01214.99
5.4.450.0130.03114.99
5.4.440.0160.02314.99
5.4.430.0210.02014.92
5.4.420.0080.02214.94
5.4.410.0090.02214.76
5.4.400.0070.03014.65
5.4.390.0060.02314.61
5.4.380.0170.03114.63
5.4.370.0140.02414.62
5.4.360.0100.02314.65
5.4.350.0150.02014.68
5.4.340.0130.01914.68
5.4.330.0070.00712.54
5.4.320.0060.02012.51
5.4.310.0060.01912.55
5.4.300.0080.01712.59
5.4.290.0070.01712.59
5.4.280.0050.01812.52
5.4.270.0060.02814.69
5.4.260.0070.02314.74
5.4.250.0090.02114.65
5.4.240.0090.02814.69
5.4.230.0080.02214.76
5.4.220.0100.02014.75
5.4.210.0080.02414.70
5.4.200.0060.02514.72
5.4.190.0080.02114.63
5.4.180.0060.02414.68
5.4.170.0060.02814.77
5.4.160.0070.02614.74
5.4.150.0060.03414.74
5.4.140.0100.02213.93
5.4.130.0070.02313.96
5.4.120.0080.02113.96
5.4.110.0110.02113.99
5.4.100.0080.02713.98
5.4.90.0090.01914.00
5.4.80.0040.02313.97
5.4.70.0070.02613.95
5.4.60.0080.02013.89
5.4.50.0070.02413.93
5.4.40.0090.02813.86
5.4.30.0110.02413.92
5.4.20.0110.02414.01
5.4.10.0090.02613.96
5.4.00.0100.02313.78
5.3.290.0080.02012.97
5.3.280.0060.02313.53
5.3.270.0100.02513.63
5.3.260.0050.02713.60
5.3.250.0050.02813.70
5.3.240.0080.02713.60
5.3.230.0040.02613.52
5.3.220.0090.02513.54
5.3.210.0110.02713.57
5.3.200.0070.02413.57
5.3.190.0110.01813.61
5.3.180.0060.02513.58
5.3.170.0070.02213.60
5.3.160.0110.03213.69
5.3.150.0070.02713.60
5.3.140.0100.02513.62
5.3.130.0110.02313.52
5.3.120.0110.02313.55
5.3.110.0140.02713.58
5.3.100.0130.01913.42
5.3.90.0080.02213.45
5.3.80.0140.02013.35
5.3.70.0100.02213.39
5.3.60.0140.02413.31
5.3.50.0070.02813.28
5.3.40.0100.02913.27
5.3.30.0080.02213.41
5.3.20.0090.02913.24
5.3.10.0070.02513.20
5.3.00.0110.02613.19
5.2.170.0160.03011.74
5.2.160.0060.03711.64
5.2.150.0080.03811.77
5.2.140.0140.02211.67
5.2.130.0070.02811.71
5.2.120.0050.03511.84
5.2.110.0080.02611.74
5.2.100.0080.02511.56
5.2.90.0090.02411.69
5.2.80.0070.03011.77
5.2.70.0090.02611.58
5.2.60.0070.03011.81
5.2.50.0110.02811.67
5.2.40.0050.02711.68
5.2.30.0160.02911.62
5.2.20.0090.02711.61
5.2.10.0120.02111.52
5.2.00.0080.02711.45
5.1.60.0070.02211.09
5.1.50.0080.02310.96
5.1.40.0070.02811.16
5.1.30.0080.02311.25
5.1.20.0110.02511.22
5.1.10.0120.02611.07
5.1.00.0090.02411.08
5.0.50.0080.02110.81
5.0.40.0050.02010.81
5.0.30.0060.02310.81
5.0.20.0100.01710.81
5.0.10.0050.01710.81
5.0.00.0030.02610.81
4.4.90.0030.01310.81
4.4.80.0050.01310.81
4.4.70.0040.01710.81
4.4.60.0070.01010.81
4.4.50.0030.01310.81
4.4.40.0080.01610.81
4.4.30.0030.01410.81
4.4.20.0040.01210.81
4.4.10.0090.01310.81
4.4.00.0030.01910.81
4.3.110.0010.01310.81
4.3.100.0020.01210.81
4.3.90.0020.01610.81
4.3.80.0000.02310.81
4.3.70.0050.01010.81
4.3.60.0000.01410.81
4.3.50.0050.01010.81
4.3.40.0010.02010.81
4.3.30.0030.01610.81
4.3.20.0010.01310.81
4.3.10.0020.01410.81
4.3.00.0040.0139.16

preferences:
55.59 ms | 401 KiB | 5 Q