3v4l.org

run code in 300+ PHP versions simultaneously
<?php //var_dump(mb_list_encodings()); exit(); $regexEncoding = "Windows-1251"; //var_dump(mb_internal_encoding($regexEncoding)); exit(); var_dump(mb_regex_encoding('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)
8.3.60.0150.00418.43
8.3.50.0150.00822.11
8.3.40.0150.00018.84
8.3.30.0070.00718.67
8.3.20.0080.00018.79
8.3.10.0060.00321.04
8.3.00.0070.00023.71
8.2.180.0120.00316.88
8.2.170.0140.00022.96
8.2.160.0040.01120.48
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00421.11
8.2.110.0030.00720.52
8.2.100.0060.00617.72
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0000.00917.50
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0050.00318.08
8.2.30.0080.00021.20
8.2.20.0040.00417.62
8.2.10.0050.00217.63
8.2.00.0000.00717.73
8.1.270.0060.00323.99
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0060.00322.42
8.1.230.0070.00420.98
8.1.220.0030.00618.77
8.1.210.0050.00318.86
8.1.200.0000.01017.23
8.1.190.0060.00319.32
8.1.180.0030.00518.10
8.1.170.0000.00818.59
8.1.160.0030.00618.73
8.1.150.0040.00418.58
8.1.140.0040.00417.26
8.1.130.0000.00717.79
8.1.120.0030.00317.32
8.1.110.0030.00517.28
8.1.100.0040.00417.29
8.1.90.0040.00417.36
8.1.80.0040.00417.29
8.1.70.0030.00317.31
8.1.60.0070.00317.52
8.1.50.0000.00817.39
8.1.40.0050.00317.39
8.1.30.0080.00017.59
8.1.20.0040.00417.53
8.1.10.0040.00417.49
8.1.00.0040.00417.47
8.0.300.0040.00419.90
8.0.290.0040.00417.18
8.0.280.0040.00418.38
8.0.270.0050.00317.11
8.0.260.0070.00016.80
8.0.250.0000.00716.96
8.0.240.0000.00916.96
8.0.230.0000.00716.82
8.0.220.0030.00316.87
8.0.210.0070.00016.84
8.0.200.0060.00316.89
8.0.190.0000.00716.86
8.0.180.0000.00716.88
8.0.170.0070.00016.79
8.0.160.0040.00416.92
8.0.150.0040.00416.78
8.0.140.0040.00416.79
8.0.130.0030.00313.31
8.0.120.0000.00716.72
8.0.110.0000.00816.81
8.0.100.0030.00616.75
8.0.90.0000.00716.79
8.0.80.0070.01116.82
8.0.70.0040.00416.87
8.0.60.0050.00216.77
8.0.50.0050.00316.88
8.0.30.0090.01117.01
8.0.20.0110.01117.40
8.0.10.0040.00416.95
8.0.00.0070.01016.73
7.4.330.0050.00014.59
7.4.320.0030.00516.57
7.4.300.0030.00316.39
7.4.290.0080.00016.50
7.4.280.0000.00716.43
7.4.270.0040.00416.45
7.4.260.0000.00513.15
7.4.250.0050.00316.50
7.4.240.0000.00816.44
7.4.230.0030.00316.48
7.4.220.0080.01216.33
7.4.210.0060.00816.49
7.4.200.0080.00016.43
7.4.190.0000.00716.25
7.4.160.0080.00816.48
7.4.150.0170.00017.40
7.4.140.0100.00617.86
7.4.130.0160.00616.48
7.4.120.0120.00516.43
7.4.110.0070.01016.56
7.4.100.0070.01116.54
7.4.90.0120.00616.29
7.4.80.0070.01019.39
7.4.70.0030.01416.45
7.4.60.0060.00916.40
7.4.50.0000.00816.39
7.4.40.0030.00622.77
7.4.30.0080.00816.37
7.4.00.0060.00615.07
7.3.330.0000.00613.10
7.3.320.0060.00013.04
7.3.310.0070.00016.07
7.3.300.0030.00316.18
7.3.290.0070.00716.15
7.3.280.0050.01016.21
7.3.270.0030.01317.40
7.3.260.0090.00818.24
7.3.250.0100.01016.26
7.3.240.0090.00916.54
7.3.230.0130.00516.39
7.3.210.0070.01016.41
7.3.200.0090.00919.39
7.3.190.0090.00816.29
7.3.180.0090.00616.52
7.3.170.0100.01716.27
7.3.160.0060.00916.11
7.3.120.0110.00614.87
7.3.110.0030.01214.88
7.3.100.0050.00514.93
7.3.90.0110.00714.70
7.3.80.0000.01814.46
7.3.70.0040.00714.77
7.3.60.0110.00414.54
7.3.50.0080.00414.51
7.3.40.0110.00714.54
7.3.30.0070.01114.79
7.3.20.0100.00316.63
7.3.10.0050.00416.39
7.3.00.0080.00816.59
7.2.330.0070.01116.55
7.2.320.0220.00716.39
7.2.310.0070.01916.48
7.2.300.0060.01016.51
7.2.290.0070.01016.55
7.2.250.0040.01114.91
7.2.240.0100.01014.86
7.2.230.0000.02014.70
7.2.220.0070.01014.75
7.2.210.0040.01114.69
7.2.200.0060.00914.70
7.2.190.0060.01014.78
7.2.180.0060.00814.45
7.2.170.0070.01114.61
7.2.00.0030.01019.19
7.1.330.0070.00715.57
7.1.320.0100.00715.82
7.1.310.0000.01415.82
7.1.300.0030.00715.71
7.1.290.0040.00915.80
7.1.280.0100.00715.63
7.1.270.0060.00615.67
7.1.260.0060.00615.52
7.1.100.0040.00717.97
7.1.70.0000.00817.14
7.1.60.0070.01719.40
7.1.50.0150.00916.51
7.1.00.0000.05722.53
7.0.200.0050.00516.33
7.0.140.0070.07022.00
7.0.70.0100.04021.69
7.0.60.0070.07721.86
7.0.50.0070.07722.09
7.0.40.0170.08019.95
7.0.30.0070.08019.95
7.0.20.0030.09020.11
7.0.10.0030.06720.07
7.0.00.0100.05720.14
5.6.280.0000.07721.05
5.6.220.0070.05320.57
5.6.210.0070.06720.45
5.6.200.0000.08720.93
5.6.190.0030.06721.09
5.6.180.0030.08321.16
5.6.170.0070.05321.09
5.6.160.0100.05321.08
5.6.150.0000.07020.95
5.6.140.0070.04721.07
5.6.130.0000.09020.95
5.6.120.0030.07720.98
5.6.110.0070.08321.00
5.6.100.0070.04721.06
5.6.90.0070.06021.04
5.6.80.0100.05320.37
5.6.70.0030.07720.40
5.6.60.0070.07020.29
5.6.50.0000.08020.51
5.6.40.0030.07720.46
5.6.30.0130.05720.37
5.6.20.0000.08720.44
5.6.10.0000.08020.42
5.6.00.0170.06320.50
5.5.360.0100.07320.52
5.5.350.0070.05720.41
5.5.340.0030.06320.91
5.5.330.0070.03720.77
5.5.320.0070.07320.90
5.5.310.0030.08320.74
5.5.300.0100.07320.63
5.5.290.0030.08320.87
5.5.280.0000.07020.85
5.5.270.0070.07320.79
5.5.260.0100.08320.71
5.5.250.0030.06320.70
5.5.240.0070.05020.29
5.5.230.0030.08320.29
5.5.220.0000.07720.20
5.5.210.0000.08320.16
5.5.200.0000.06320.14
5.5.190.0100.07720.27
5.5.180.0000.08020.10
5.5.160.0030.08020.24
5.5.150.0030.05719.98
5.5.140.0130.07720.23
5.5.130.0070.08020.09
5.5.120.0070.07320.23
5.5.110.0100.05020.08
5.5.100.0000.05020.13
5.5.90.0070.07320.16
5.5.80.0000.06020.12
5.5.70.0070.07720.02
5.5.60.0130.07020.02
5.5.50.0000.05720.09
5.5.40.0000.08020.04
5.5.30.0100.06720.14
5.5.20.0070.07320.06
5.5.10.0130.07320.07
5.5.00.0000.05019.91
5.4.450.0070.05319.31
5.4.440.0070.07719.55
5.4.430.0100.06719.41
5.4.420.0070.07319.29
5.4.410.0070.07319.00
5.4.400.0000.05019.23
5.4.390.0000.04718.94
5.4.380.0100.06719.11
5.4.370.0170.06019.14
5.4.360.0030.07719.05
5.4.350.0070.06318.81
5.4.340.0000.08718.98
5.4.320.0030.07719.14
5.4.310.0070.07319.23
5.4.300.0000.06018.94
5.4.290.0030.06719.02
5.4.280.0030.07318.94
5.4.270.0100.07018.94
5.4.260.0030.05318.78
5.4.250.0000.07718.89
5.4.240.0030.08018.80
5.4.230.0070.07019.09
5.4.220.0030.06019.12
5.4.210.0070.07019.04
5.4.200.0030.05318.96
5.4.190.0000.04019.02
5.4.180.0030.07719.11
5.4.170.0070.05018.80
5.4.160.0070.08018.88
5.4.150.0130.06719.00
5.4.140.0000.06016.36
5.4.130.0000.07716.38
5.4.120.0070.06716.27
5.4.110.0030.08016.21
5.4.100.0000.07316.38
5.4.90.0030.07716.34
5.4.80.0070.07016.34
5.4.70.0030.07316.19
5.4.60.0030.06716.16
5.4.50.0070.07016.18
5.4.40.0070.05316.23
5.4.30.0070.05716.26
5.4.20.0030.07316.41
5.4.10.0070.06716.30
5.4.00.0100.04315.86
5.3.290.0070.08014.50
5.3.280.0000.05714.41
5.3.270.0070.08014.55
5.3.260.0000.06714.45
5.3.250.0030.07014.46
5.3.240.0030.05314.48
5.3.230.0070.07014.50
5.3.220.0030.07714.41
5.3.210.0000.05714.53
5.3.200.0100.07314.52
5.3.190.0030.08014.39
5.3.180.0070.07314.41
5.3.170.0030.07314.52
5.3.160.0000.05714.38
5.3.150.0130.06314.56
5.3.140.0070.07314.55
5.3.130.0030.08014.52
5.3.120.0030.06714.41
5.3.110.0030.08014.49
5.3.100.0030.07713.89
5.3.90.0030.07014.00
5.3.80.0030.05714.00
5.3.70.0030.08013.98
5.3.60.0030.07313.91
5.3.50.0000.05013.88
5.3.40.0000.07713.79
5.3.30.0070.07013.76
5.3.20.0030.06713.61
5.3.10.0000.07313.64
5.3.00.0170.05013.49
5.2.170.0000.06312.52
5.2.160.0070.05712.52
5.2.150.0000.07012.52
5.2.140.0070.05712.52
5.2.130.0000.06312.52
5.2.120.0030.06012.52
5.2.110.0070.06012.52
5.2.100.0100.05312.52
5.2.90.0130.05312.52
5.2.80.0070.04312.52
5.2.70.0000.04312.52
5.2.60.0000.05012.52
5.2.50.0000.06312.52
5.2.40.0070.05712.52
5.2.30.0000.06012.52
5.2.20.0070.05312.52
5.2.10.0030.04012.52
5.2.00.0000.05312.52
5.1.60.0070.04312.52
5.1.50.0030.05312.52
5.1.40.0070.04712.52
5.1.30.0000.06012.52
5.1.20.0030.05012.52
5.1.10.0030.05312.52
5.1.00.0000.04712.52
5.0.50.0030.03012.52
5.0.40.0000.03312.52
5.0.30.0030.06712.52
5.0.20.0000.04012.52
5.0.10.0030.04312.52
5.0.00.0000.06312.52
4.4.90.0000.03012.52
4.4.80.0030.03012.52
4.4.70.0000.02712.52
4.4.60.0000.02712.52
4.4.50.0000.03012.52
4.4.40.0000.05712.52
4.4.30.0070.03012.52
4.4.20.0070.02312.52
4.4.10.0070.03012.52
4.4.00.0000.05312.52
4.3.110.0000.02312.52
4.3.100.0070.03012.52
4.3.90.0000.02312.52
4.3.80.0130.04712.52
4.3.70.0000.03712.52
4.3.60.0000.03712.52
4.3.50.0000.03312.52
4.3.40.0030.05312.52
4.3.30.0000.03712.52
4.3.20.0030.03312.52
4.3.10.0070.03312.52
4.3.00.0030.02712.52

preferences:
57.32 ms | 400 KiB | 5 Q