3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string1 = "sqrtpdrt"; $string2 = "qwntfschrprtkjs"; $regex = '/^(?=.*[bcdfghjklmnpqrstvwxz]{4})(?!.*chr)/i'; var_dump( preg_match($regex, $string1), preg_match($regex, $string2) );

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)
8.3.70.0090.00618.55
8.3.60.0170.00318.43
8.3.50.0110.00822.09
8.3.40.0070.00718.79
8.3.30.0070.00719.01
8.3.20.0040.00420.34
8.3.10.0040.00423.53
8.3.00.0040.00420.84
8.2.180.0040.01416.88
8.2.170.0110.00422.96
8.2.160.0110.01120.22
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0150.00426.16
8.2.120.0080.00019.61
8.2.110.0000.00822.20
8.2.100.0070.00420.41
8.2.90.0040.00419.11
8.2.80.0000.00817.97
8.2.70.0100.00017.75
8.2.60.0110.00017.80
8.2.50.0050.00318.07
8.2.40.0000.00819.89
8.2.30.0070.00018.26
8.2.20.0040.00417.70
8.2.10.0040.00418.08
8.2.00.0050.00317.86
8.1.280.0150.00625.92
8.1.270.0080.00023.97
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.79
8.1.230.0040.00719.25
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0060.00317.36
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0060.00618.39
8.1.160.0060.00321.96
8.1.150.0000.00718.63
8.1.140.0040.00417.43
8.1.130.0000.00717.84
8.1.120.0030.00417.57
8.1.110.0000.00717.53
8.1.100.0000.00717.52
8.1.90.0040.00417.44
8.1.80.0070.00017.56
8.1.70.0030.00317.40
8.1.60.0030.00517.64
8.1.50.0030.00617.52
8.1.40.0070.00417.57
8.1.30.0030.00517.63
8.1.20.0040.00417.67
8.1.10.0080.00017.59
8.1.00.0000.00817.51
8.0.300.0050.00218.77
8.0.290.0000.00716.88
8.0.280.0030.00318.31
8.0.270.0000.00717.25
8.0.260.0030.00317.22
8.0.250.0000.00717.07
8.0.240.0070.00017.12
8.0.230.0050.00216.95
8.0.220.0050.00217.07
8.0.210.0000.00616.91
8.0.200.0000.00617.07
8.0.190.0040.00417.00
8.0.180.0060.00317.09
8.0.170.0040.00417.05
8.0.160.0070.00017.01
8.0.150.0050.00316.98
8.0.140.0030.00316.88
8.0.130.0000.00513.45
8.0.120.0000.00817.03
8.0.110.0000.00716.86
8.0.100.0080.00017.14
8.0.90.0000.00816.99
8.0.80.0110.00616.96
8.0.70.0050.00216.92
8.0.60.0020.00516.88
8.0.50.0000.00717.02
8.0.30.0120.00917.11
8.0.20.0110.00917.40
8.0.10.0040.00416.98
8.0.00.0130.00616.87
7.4.330.0050.00015.00
7.4.320.0000.00616.59
7.4.300.0030.00316.71
7.4.290.0000.01016.66
7.4.280.0070.00016.73
7.4.270.0070.00016.75
7.4.260.0030.00316.75
7.4.250.0000.00716.60
7.4.240.0020.00516.73
7.4.230.0070.00016.72
7.4.220.0070.01016.70
7.4.210.0060.00916.77
7.4.200.0050.00216.63
7.4.160.0040.01116.58
7.4.150.0100.00717.40
7.4.140.0080.01017.86
7.4.130.0070.01216.71
7.4.120.0070.01016.60
7.4.110.0130.00416.51
7.4.100.0120.00616.60
7.4.90.0140.00316.57
7.4.80.0090.00919.39
7.4.70.0030.01416.66
7.4.60.0090.01216.73
7.4.50.0030.00516.71
7.4.40.0180.00516.74
7.4.30.0090.00616.35
7.4.00.0080.00614.78
7.3.330.0050.00013.25
7.3.320.0030.00313.25
7.3.310.0040.00416.28
7.3.300.0030.00316.38
7.3.290.0100.01016.34
7.3.280.0060.01316.30
7.3.270.0040.01317.40
7.3.260.0090.00916.60
7.3.250.0110.00616.59
7.3.240.0170.00016.32
7.3.230.0100.00616.56
7.3.210.0140.00616.54
7.3.200.0170.00619.39
7.3.190.0100.01416.41
7.3.180.0040.01216.62
7.3.170.0050.01116.28
7.3.160.0070.01016.47
7.3.120.0070.01114.65
7.3.10.0000.01616.59
7.3.00.0090.00916.30
7.2.330.0060.01716.71
7.2.320.0070.01616.52
7.2.310.0130.01016.56
7.2.300.0030.01316.67
7.2.290.0120.00916.54
7.2.130.0130.00616.89
7.2.120.0150.00416.72
7.2.110.0090.01516.74
7.2.100.0080.00516.88
7.2.90.0110.00516.90
7.2.80.0100.00816.88
7.2.70.0080.01016.76
7.2.60.0120.00716.64
7.2.50.0080.00716.64
7.2.40.0050.01116.79
7.2.30.0050.01216.75
7.2.20.0090.00816.94
7.2.10.0070.00916.84
7.2.00.0080.00717.67
7.1.250.0120.00515.53
7.1.240.0110.00415.82
7.1.230.0120.00015.61
7.1.220.0040.01115.66
7.1.210.0070.01015.36
7.1.200.0150.00015.89
7.1.190.0060.00915.63
7.1.180.0130.00715.95
7.1.170.0100.00315.60
7.1.160.0060.00915.69
7.1.150.0120.00315.82
7.1.140.0080.00515.86
7.1.130.0100.00715.79
7.1.120.0100.01015.82
7.1.110.0080.00415.79
7.1.100.0070.00716.97
7.1.90.0110.00315.49
7.1.80.0160.00015.66
7.1.70.0090.00616.33
7.1.60.0090.00716.57
7.1.50.0080.01016.43
7.1.40.0030.01615.36
7.1.30.0130.00415.64
7.1.20.0070.01115.78
7.1.10.0100.00715.72
7.1.00.0060.04019.05
7.0.330.0120.00415.55
7.0.320.0150.00715.23
7.0.310.0100.00815.29
7.0.300.0110.01115.29
7.0.290.0150.00315.20
7.0.280.0150.00615.34
7.0.270.0120.00615.39
7.0.260.0080.01215.45
7.0.250.0090.00915.30
7.0.240.0110.00415.52
7.0.230.0150.00015.53
7.0.220.0070.01015.31
7.0.210.0070.01015.23
7.0.200.0070.01016.21
7.0.190.0060.01315.21
7.0.180.0080.00815.51
7.0.170.0140.00315.36
7.0.160.0090.00915.22
7.0.150.0130.01015.29
7.0.140.0020.04418.61
7.0.130.0060.01215.13
7.0.120.0100.00715.18
7.0.110.0080.01215.29
7.0.100.0150.03017.60
7.0.90.0090.03917.56
7.0.80.0110.04017.69
7.0.70.0180.04117.78
7.0.60.0110.03817.57
7.0.50.0080.04317.85
7.0.40.0080.04316.61
7.0.30.0140.02416.68
7.0.20.0050.02816.82
7.0.10.0030.04616.65
7.0.00.0120.04416.74
5.6.380.0070.00714.04
5.6.370.0040.01113.94
5.6.360.0070.00714.24
5.6.350.0040.01114.18
5.6.340.0100.00313.90
5.6.330.0030.01014.46
5.6.320.0130.00014.04
5.6.310.0080.01213.78
5.6.300.0070.01113.93
5.6.290.0070.01113.95
5.6.280.0050.03917.53
5.6.270.0120.00514.08
5.6.260.0100.00614.09
5.6.250.0040.03117.21
5.6.240.0030.04117.32
5.6.230.0080.03517.32
5.6.220.0060.04517.34
5.6.210.0030.04817.43
5.6.200.0070.04617.47
5.6.190.0100.03617.53
5.6.180.0050.04617.50
5.6.170.0100.04517.58
5.6.160.0030.03017.72
5.6.150.0090.03817.59
5.6.140.0120.04117.52
5.6.130.0090.03917.64
5.6.120.0050.02717.49
5.6.110.0040.04417.64
5.6.100.0120.03517.66
5.6.90.0080.02717.47
5.6.80.0050.03217.41
5.6.70.0050.03217.13
5.6.60.0020.04817.37
5.6.50.0090.03017.10
5.6.40.0050.03517.24
5.6.30.0060.04117.22
5.6.20.0110.03717.16
5.6.10.0050.04717.12
5.6.00.0000.02917.19
5.5.380.0000.03115.79
5.5.370.0030.03015.76
5.5.360.0070.02515.78
5.5.350.0070.04315.84
5.5.340.0070.03916.00
5.5.330.0090.03516.02
5.5.320.0020.04615.96
5.5.310.0090.04015.97
5.5.300.0040.05116.01
5.5.290.0050.04516.03
5.5.280.0050.03015.97
5.5.270.0070.04015.99
5.5.260.0130.03315.97
5.5.250.0050.04215.93
5.5.240.0090.03915.68
5.5.230.0050.02615.66
5.5.220.0060.04115.69
5.5.210.0040.03615.73
5.5.200.0080.02015.69
5.5.190.0020.02315.58
5.5.180.0040.03815.71
5.5.170.0070.00411.18
5.5.160.0060.04315.69
5.5.150.0080.01815.72
5.5.140.0070.02015.71
5.5.130.0050.02515.58
5.5.120.0060.04115.67
5.5.110.0040.03615.71
5.5.100.0100.03615.62
5.5.90.0100.03715.59
5.5.80.0080.04115.66
5.5.70.0110.03715.65
5.5.60.0060.02515.61
5.5.50.0030.02315.66
5.5.40.0050.02315.65
5.5.30.0040.02615.60
5.5.20.0020.02915.60
5.5.10.0030.02515.60
5.5.00.0030.02315.61
5.4.450.0070.02915.27
5.4.440.0030.02515.16
5.4.430.0060.03915.31
5.4.420.0060.03915.32
5.4.410.0060.03615.09
5.4.400.0090.04215.06
5.4.390.0110.03315.10
5.4.380.0080.03515.10
5.4.370.0040.03415.06
5.4.360.0020.04115.16
5.4.350.0090.02315.14
5.4.340.0070.04015.11
5.4.330.0000.00911.18
5.4.320.0100.03715.15
5.4.310.0020.02715.15
5.4.300.0050.03015.11
5.4.290.0020.03114.97
5.4.280.0060.03515.20
5.4.270.0070.03215.14
5.4.260.0080.02315.16
5.4.250.0110.03415.10
5.4.240.0050.04415.08
5.4.230.0070.04115.14
5.4.220.0080.03215.13
5.4.210.0080.02515.13
5.4.200.0090.02215.14
5.4.190.0050.02415.07
5.4.180.0080.02015.18
5.4.170.0090.02015.06
5.4.160.0050.02014.98
5.4.150.0060.02315.06
5.4.140.0080.01813.72
5.4.130.0090.01913.78
5.4.120.0060.02213.61
5.4.110.0050.02113.69
5.4.100.0080.01713.79
5.4.90.0100.03713.77
5.4.80.0100.03313.79
5.4.70.0060.02113.71
5.4.60.0060.02113.68
5.4.50.0060.02013.74
5.4.40.0020.02213.80
5.4.30.0020.02213.74
5.4.20.0080.01813.78
5.4.10.0050.01813.74
5.4.00.0010.02313.34
5.3.290.0040.03912.88
5.3.280.0070.02512.86
5.3.270.0070.02012.85
5.3.260.0040.02112.80
5.3.250.0000.02612.87
5.3.240.0080.01812.87
5.3.230.0100.01712.84
5.3.220.0070.02112.86
5.3.210.0110.01712.78
5.3.200.0080.02512.84
5.3.190.0110.03512.86
5.3.180.0050.03212.78
5.3.170.0100.01812.82
5.3.160.0080.02212.85
5.3.150.0070.02012.80
5.3.140.0060.01812.79
5.3.130.0020.02712.78
5.3.120.0050.02012.79
5.3.110.0000.02812.86
5.3.100.0060.02612.52
5.3.90.0040.02012.53
5.3.80.0030.03112.57
5.3.70.0050.01712.58
5.3.60.0100.01712.54
5.3.50.0070.01812.44
5.3.40.0030.01912.56
5.3.30.0060.01912.54
5.3.20.0020.02312.41
5.3.10.0040.01612.36
5.3.00.0010.01912.40
5.2.170.0010.01911.41
5.2.160.0030.01811.41
5.2.150.0020.01611.41
5.2.140.0020.01911.41
5.2.130.0030.01811.41
5.2.120.0030.01711.41
5.2.110.0020.01911.41
5.2.100.0020.01711.41
5.2.90.0050.01511.41
5.2.80.0050.01511.41
5.2.70.0020.01511.41
5.2.60.0070.01511.41
5.2.50.0030.02111.41
5.2.40.0030.01511.41
5.2.30.0050.01311.41
5.2.20.0020.01811.41
5.2.10.0060.01711.41
5.2.00.0040.01711.41
5.1.60.0050.01311.41
5.1.50.0020.01611.41
5.1.40.0090.01211.41
5.1.30.0030.01611.41
5.1.20.0030.01311.41
5.1.10.0050.01311.41
5.1.00.0040.01611.41
5.0.50.0050.01111.41
5.0.40.0000.01611.41
5.0.30.0020.01711.41
5.0.20.0050.01011.41
5.0.10.0030.01211.41
5.0.00.0050.01311.41
4.4.90.0000.01111.41
4.4.80.0030.00811.41
4.4.70.0030.01011.41
4.4.60.0000.01211.41
4.4.50.0030.00911.41
4.4.40.0030.01111.41
4.4.30.0030.00711.41
4.4.20.0010.01111.41
4.4.10.0050.00711.41
4.4.00.0030.01511.41
4.3.110.0000.01311.41
4.3.100.0050.01011.41
4.3.90.0020.01011.41
4.3.80.0010.01511.41
4.3.70.0030.00911.41
4.3.60.0030.01011.41
4.3.50.0020.01011.41
4.3.40.0020.02911.41
4.3.30.0030.01511.41
4.3.20.0010.01911.41
4.3.10.0020.01211.41
4.3.00.0020.01211.41

preferences:
47.09 ms | 401 KiB | 5 Q