3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regexEncoding = "CP1251"; var_dump(mb_regex_encoding($regexEncoding));

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)
8.3.40.0140.00018.84
8.3.30.0170.00318.96
8.3.20.0000.00820.16
8.3.10.0060.00623.48
8.3.00.0080.00020.57
8.2.170.0070.01422.96
8.2.160.0140.00722.30
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0050.00317.63
8.2.110.0060.00322.02
8.2.100.0120.00017.78
8.2.90.0070.00019.09
8.2.80.0080.00017.97
8.2.70.0030.00617.38
8.2.60.0030.00617.80
8.2.50.0000.00818.07
8.2.40.0050.00317.97
8.2.30.0040.00717.86
8.2.20.0070.00017.55
8.2.10.0040.00417.61
8.2.00.0000.00817.72
8.1.270.0080.00024.02
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0040.00423.88
8.1.230.0070.00419.16
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0040.00417.41
8.1.180.0060.00318.10
8.1.170.0030.00618.66
8.1.160.0040.00421.81
8.1.150.0020.00518.54
8.1.140.0040.00417.36
8.1.130.0070.00017.82
8.1.120.0000.00717.43
8.1.110.0040.00417.35
8.1.100.0070.00017.38
8.1.90.0040.00417.38
8.1.80.0050.00217.42
8.1.70.0000.00717.35
8.1.60.0030.00617.53
8.1.50.0080.00017.38
8.1.40.0040.00417.49
8.1.30.0050.00317.68
8.1.20.0000.00917.61
8.1.10.0000.00817.53
8.1.00.0040.00417.35
8.0.300.0020.00518.77
8.0.290.0040.00417.04
8.0.280.0030.00318.42
8.0.270.0030.00317.18
8.0.260.0000.00916.71
8.0.250.0030.00316.95
8.0.240.0020.00516.89
8.0.230.0040.00416.91
8.0.220.0000.00716.90
8.0.210.0000.00716.89
8.0.200.0030.00316.97
8.0.190.0040.00416.98
8.0.180.0070.00016.92
8.0.170.0000.00816.94
8.0.160.0040.00416.89
8.0.150.0000.00716.66
8.0.140.0040.00416.80
8.0.130.0000.00613.27
8.0.120.0040.00416.84
8.0.110.0000.00716.77
8.0.100.0040.00416.71
8.0.90.0000.00716.73
8.0.80.0030.01316.92
8.0.70.0040.00416.69
8.0.60.0070.00016.72
8.0.50.0020.00516.88
8.0.30.0150.00716.95
8.0.20.0100.01117.40
8.0.10.0000.00816.88
8.0.00.0140.00616.73
7.4.330.0050.00015.00
7.4.320.0000.00716.36
7.4.300.0050.00316.56
7.4.290.0080.00416.40
7.4.280.0000.01016.46
7.4.270.0060.00016.50
7.4.260.0030.00316.39
7.4.250.0070.00016.41
7.4.240.0040.00316.44
7.4.230.0030.00316.31
7.4.220.0060.01516.53
7.4.210.0080.00616.48
7.4.200.0070.00016.28
7.4.190.0040.00416.67
7.4.160.0090.00916.40
7.4.150.0060.01217.40
7.4.140.0090.00917.86
7.4.130.0060.01116.52
7.4.120.0070.01516.39
7.4.110.0060.01216.29
7.4.100.0120.00616.35
7.4.90.0120.00416.48
7.4.80.0100.00716.50
7.4.70.0100.00716.51
7.4.60.0040.01216.40
7.4.50.0030.00616.13
7.4.40.0030.01222.77
7.4.30.0080.00916.55
7.4.00.0020.01114.79
7.3.330.0050.00013.07
7.3.320.0050.00013.03
7.3.310.0030.00316.28
7.3.300.0020.00516.19
7.3.290.0100.00316.24
7.3.280.0110.00916.17
7.3.270.0060.01217.40
7.3.260.0120.01216.52
7.3.250.0100.01116.35
7.3.240.0030.01316.43
7.3.230.0100.01016.39
7.3.210.0060.01216.25
7.3.200.0120.00619.39
7.3.190.0180.00316.23
7.3.180.0030.01716.33
7.3.170.0060.00916.50
7.3.160.0090.00616.23
7.3.120.0070.01014.69
7.3.110.0100.00714.85
7.3.100.0030.01414.61
7.3.90.0110.00414.73
7.3.80.0070.01014.59
7.3.70.0100.00014.62
7.3.60.0040.01114.56
7.3.50.0000.01814.44
7.3.40.0030.01314.72
7.3.30.0030.01014.70
7.3.20.0130.00316.68
7.3.10.0040.01216.60
7.3.00.0030.01216.53
7.2.330.0100.00816.39
7.2.320.0030.01316.40
7.2.310.0130.00316.24
7.2.300.0140.00316.48
7.2.290.0100.00716.53
7.2.250.0090.00914.83
7.2.240.0100.01014.92
7.2.230.0000.01815.02
7.2.220.0110.00414.84
7.2.210.0100.00714.75
7.2.200.0040.01114.71
7.2.190.0140.00314.86
7.2.180.0070.01314.57
7.2.170.0100.00014.53
7.2.130.0030.00716.66
7.2.120.0080.01216.86
7.2.110.0120.00316.61
7.2.100.0090.00616.79
7.2.90.0040.00716.70
7.2.80.0060.00916.53
7.2.70.0100.00316.75
7.2.60.0100.00316.87
7.2.50.0040.00816.80
7.2.40.0080.00816.58
7.2.30.0030.01016.61
7.2.20.0060.01016.73
7.2.10.0030.00516.74
7.2.00.0050.00618.08
7.1.330.0030.01315.82
7.1.320.0100.00315.86
7.1.310.0030.01215.81
7.1.300.0070.00715.68
7.1.290.0070.01115.64
7.1.280.0000.01415.54
7.1.270.0030.00715.77
7.1.260.0070.00715.75
7.1.250.0000.01215.72
7.1.240.0080.01615.93
7.1.230.0050.00515.64
7.1.220.0080.01215.80
7.1.210.0100.00615.70
7.1.200.0050.00815.36
7.1.190.0000.01415.68
7.1.180.0000.01315.49
7.1.170.0030.00915.54
7.1.160.0060.00315.81
7.1.150.0000.01015.68
7.1.140.0130.00015.83
7.1.130.0060.00615.59
7.1.120.0070.00315.38
7.1.110.0000.01215.58
7.1.100.0030.00817.03
7.1.90.0000.00715.77
7.1.80.0000.00715.58
7.1.70.0100.00516.43
7.1.60.0080.01117.45
7.1.50.0050.01116.29
7.1.40.0040.00415.73
7.1.30.0030.00815.64
7.1.20.0040.01115.54
7.1.10.0040.00415.33
7.1.00.0040.04219.00
7.0.330.0090.00615.48
7.0.320.0060.00615.12
7.0.310.0030.00715.34
7.0.300.0060.00615.31
7.0.290.0060.00915.29
7.0.280.0120.00015.39
7.0.270.0040.00815.00
7.0.260.0100.00315.25
7.0.250.0070.00715.32
7.0.240.0060.00615.07
7.0.230.0040.00815.37
7.0.220.0100.00015.19
7.0.210.0030.00315.06
7.0.200.0050.00515.98
7.0.190.0040.00715.35
7.0.180.0060.00615.45
7.0.170.0000.00915.20
7.0.160.0040.01115.24
7.0.150.0030.01015.12
7.0.140.0000.04218.63
7.0.130.0060.00915.35
7.0.120.0040.00415.48
7.0.110.0070.00715.25
7.0.100.0110.00315.21
7.0.90.0040.00415.34
7.0.80.0030.01015.56
7.0.70.0100.00715.12
7.0.60.0090.03617.56
7.0.50.0110.03816.58
7.0.40.0050.03016.81
7.0.30.0320.04016.79
7.0.20.0220.04216.70
7.0.10.0120.03716.75
7.0.00.0060.03116.71
5.6.380.0100.00314.49
5.6.370.0060.00614.25
5.6.360.0040.01114.10
5.6.350.0030.01014.36
5.6.340.0100.00314.21
5.6.330.0130.00013.99
5.6.320.0000.01413.94
5.6.310.0080.00314.09
5.6.300.0040.00814.12
5.6.290.0000.01714.21
5.6.280.0020.04417.47
5.6.270.0000.01414.00
5.6.260.0030.00314.09
5.6.250.0090.00614.07
5.6.240.0040.01113.83
5.6.230.0040.01114.26
5.6.220.0060.00613.98
5.6.210.0050.03617.20
5.6.200.0050.05116.15
5.6.190.0070.04217.16
5.6.180.2060.02317.16
5.6.170.0140.03217.22
5.6.160.0050.04617.40
5.6.150.0030.02716.14
5.6.140.0080.03016.17
5.6.130.0070.04416.21
5.6.120.0080.04017.60
5.6.110.0060.03017.66
5.6.100.0030.03517.62
5.6.90.0050.05017.68
5.6.80.0070.03517.17
5.6.70.2220.02517.30
5.6.60.0060.00314.28
5.6.50.0000.01213.77
5.6.40.0000.01114.08
5.6.30.0030.00914.14
5.6.20.0000.00913.88
5.6.10.0030.01014.14
5.6.00.0050.00813.75
5.5.380.0070.00311.09
5.5.370.0000.00610.59
5.5.360.0050.00010.99
5.5.350.0100.04215.57
5.5.340.0060.02814.55
5.5.330.0020.02915.69
5.5.320.0100.02315.46
5.5.310.0130.04215.63
5.5.300.0020.02514.38
5.5.290.0020.02314.38
5.5.280.0050.02315.92
5.5.270.0050.03215.96
5.5.260.0020.02615.82
5.5.250.0100.03615.79
5.5.240.0050.04315.49
5.5.230.0030.00710.87
5.5.220.0030.00610.96
5.5.210.0060.00610.82
5.5.200.0000.00810.73
5.5.190.0030.00610.57
5.5.180.0060.00610.65
5.5.170.0030.00910.96
5.5.160.0030.00910.88
5.5.150.0000.01210.83
5.5.140.0080.00010.62
5.5.130.0070.00310.59
5.5.120.0040.00810.72
5.5.110.0030.00310.87
5.5.100.0090.00310.71
5.5.90.0030.01010.92
5.5.80.0090.00310.68
5.5.70.0040.00810.84
5.5.60.0060.00610.84
5.5.50.0030.00910.98
5.5.40.0060.00610.94
5.5.30.0060.00610.46
5.5.20.0000.00510.72
5.5.10.0030.00611.00
5.5.00.0030.00710.56
5.4.450.0180.02815.05
5.4.440.0240.03615.02
5.4.430.0230.02715.21
5.4.420.0220.03715.22
5.4.410.0320.02815.22
5.4.400.0200.02515.05
5.4.390.0200.03214.80
5.4.380.0240.02714.98
5.4.370.0200.04114.78
5.4.360.0230.03715.07
5.4.350.0200.02515.07
5.4.340.0250.03814.89
5.4.330.0000.01110.81
5.4.320.0200.02314.96
5.4.310.0180.02714.86
5.4.300.0180.02015.03
5.4.290.0150.02214.98
5.4.280.0220.02314.82
5.4.270.0210.01814.96
5.4.260.0150.02614.96
5.4.250.0250.03714.96
5.4.240.0230.03314.84
5.4.230.0230.03514.94
5.4.220.0210.03015.01
5.4.210.0390.01414.87
5.4.200.0280.02814.84
5.4.190.0290.03414.76
5.4.180.0230.03214.99
5.4.170.0270.03815.02
5.4.160.0200.02014.79
5.4.150.0240.03414.91
5.4.140.0250.03713.68
5.4.130.0220.03713.63
5.4.120.0160.02213.61
5.4.110.0200.02313.56
5.4.100.0130.02113.53
5.4.90.0200.03013.54
5.4.80.0230.02013.65
5.4.70.0230.02413.60
5.4.60.0280.02013.66
5.4.50.0200.02313.68
5.4.40.0250.02013.61
5.4.30.0200.01613.40
5.4.20.0150.02513.66
5.4.10.0170.02813.66
5.4.00.0200.02013.22
5.3.290.0170.02212.40
5.3.280.0230.02512.45
5.3.270.0250.03312.43
5.3.260.0240.01712.32
5.3.250.0200.02012.38
5.3.240.0230.03312.44
5.3.230.0240.03712.42
5.3.220.0200.03012.47
5.3.210.0200.03212.37
5.3.200.0260.03312.38
5.3.190.0250.02512.33
5.3.180.0250.02512.35
5.3.170.0170.02512.40
5.3.160.0210.02112.50
5.3.150.0180.02012.46
5.3.140.0150.03412.47
5.3.130.0170.02112.43
5.3.120.0200.03612.34
5.3.110.0150.03412.30
5.3.100.0210.04112.22
5.3.90.0240.01812.20
5.3.80.0150.03712.06
5.3.70.0220.04012.13
5.3.60.0220.02012.15
5.3.50.0250.03012.07
5.3.40.0200.01711.99
5.3.30.0200.03711.93
5.3.20.0200.02312.03
5.3.10.0170.04211.82
5.3.00.0230.01611.79
5.2.170.0140.01511.54
5.2.160.0170.02511.54
5.2.150.0150.02211.54
5.2.140.0170.02811.54
5.2.130.0150.02011.54
5.2.120.0170.02911.54
5.2.110.0140.01711.54
5.2.100.0180.02211.54
5.2.90.0200.03011.54
5.2.80.0200.02111.54
5.2.70.0220.03011.54
5.2.60.0200.01511.54
5.2.50.0180.02311.54
5.2.40.0180.03311.54
5.2.30.0170.02511.54
5.2.20.0170.01911.54
5.2.10.0130.02311.54
5.2.00.0120.02011.54
5.1.60.0100.01811.54
5.1.50.0150.01311.54
5.1.40.0160.02111.54
5.1.30.0130.01711.54
5.1.20.0190.01511.54
5.1.10.0120.02011.54
5.1.00.0130.01811.54
5.0.50.0130.02011.54
5.0.40.0110.01811.54
5.0.30.0080.03311.54
5.0.20.0100.02211.54
5.0.10.0100.01511.54
5.0.00.0140.02811.54
4.4.90.0080.01011.54
4.4.80.0080.01111.54
4.4.70.0120.01711.54
4.4.60.0100.01211.54
4.4.50.0080.01011.54
4.4.40.0100.01311.54
4.4.30.0110.00911.54
4.4.20.0080.01111.54
4.4.10.0080.01711.54
4.4.00.0060.01511.54
4.3.110.0090.01611.54
4.3.100.0080.02011.54
4.3.90.0070.02011.54
4.3.80.0070.02011.54
4.3.70.0130.01311.54
4.3.60.0100.01211.54
4.3.50.0090.01211.54
4.3.40.0070.01411.54
4.3.30.0050.02011.54
4.3.20.0050.01711.54
4.3.10.0050.01211.54
4.3.00.0070.01811.54

preferences:
41.26 ms | 400 KiB | 5 Q