3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_export(preg_split('~..\K~', 'abcdefghijklm', 3)); echo "\n---\n"; var_export([preg_replace('~..\K~','*', 'abcdefghijklm', 3, $count1), $count1]); echo "\n---\n"; var_export([preg_filter('~..\K~', '*', 'abcdefghijklm', 3, $count2), $count2]); echo "\n---\n"; var_export(preg_grep('~..\K~', ['abc', 'def', 'ghi', 'jklm'])); echo "\n---\n"; var_export(preg_match_all('~(..)\K~', 'abcdefghijklm', $m1) ? $m1 : null); echo "\n---\n"; var_export(preg_match_all('~..\K~', 'abcdefghijklm', $m2) ? $m2 : null);

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)
8.4.120.0140.01118.00
8.4.110.0140.00625.73
8.4.100.0090.00017.86
8.4.90.0110.01020.43
8.4.80.0070.00118.82
8.4.70.0140.00818.89
8.4.60.0110.00918.73
8.4.50.0120.00820.46
8.4.40.0070.00419.44
8.4.30.0110.00720.77
8.4.20.0130.00717.88
8.4.10.0100.00619.50
8.3.250.0130.00716.60
8.3.240.0100.01016.79
8.3.230.0050.00316.66
8.3.220.0090.01018.89
8.3.210.0050.00418.43
8.3.200.0050.00416.91
8.3.190.0080.01018.63
8.3.180.0110.00718.91
8.3.170.0120.00316.95
8.3.160.0130.00616.80
8.3.150.0130.00616.73
8.3.140.0050.01417.10
8.3.130.0060.00318.34
8.3.120.0090.00020.85
8.3.110.0080.00020.94
8.3.100.0030.00624.06
8.3.90.0150.00026.77
8.3.80.0080.00319.36
8.3.70.0140.00718.43
8.3.60.0030.01316.75
8.3.50.0070.00718.38
8.3.40.0110.00718.95
8.3.30.0090.00618.93
8.3.20.0030.00624.18
8.3.10.0000.00824.66
8.3.00.0060.00326.16
8.2.290.0120.00816.73
8.2.280.0130.00618.74
8.2.270.0160.00317.07
8.2.260.0060.00316.77
8.2.250.0060.00316.70
8.2.240.0000.00918.83
8.2.230.0060.00322.58
8.2.220.0000.00837.54
8.2.210.0140.00326.77
8.2.200.0040.00718.88
8.2.190.0040.01118.41
8.2.180.0140.00725.92
8.2.170.0000.01719.07
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00426.35
8.2.110.0030.00620.56
8.2.100.0070.00417.97
8.2.90.0030.00518.03
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0000.00818.04
8.2.50.0040.00418.05
8.2.40.0040.00418.00
8.2.30.0000.00817.93
8.2.20.0020.00517.92
8.2.10.0040.00419.24
8.2.00.0050.00219.10
8.1.330.0140.00516.22
8.1.320.0130.00616.05
8.1.310.0080.00016.32
8.1.300.0160.00020.40
8.1.290.0000.01130.84
8.1.280.0090.00625.92
8.1.270.0040.00423.99
8.1.260.0030.00628.09
8.1.250.0070.00028.09
8.1.240.0070.00322.52
8.1.230.0120.00022.66
8.1.220.0080.00017.74
8.1.210.0030.00618.78
8.1.200.0000.00817.35
8.1.190.0000.00817.35
8.1.180.0060.00318.10
8.1.170.0080.00018.59
8.1.160.0050.00318.85
8.1.150.0050.00218.91
8.1.140.0020.00518.93
8.1.130.0000.00720.14
8.1.120.0000.00717.63
8.1.110.0030.00517.47
8.1.100.0000.00817.46
8.1.90.0080.00017.57
8.1.80.0030.00617.46
8.1.70.0000.00817.61
8.1.60.0050.00317.69
8.1.50.0060.00317.61
8.1.40.0040.00417.54
8.1.30.0040.00417.80
8.1.20.0000.00717.59
8.1.10.0030.00517.64
8.1.00.0000.01017.41
8.0.300.0000.00719.82
8.0.290.0030.00616.88
8.0.280.0080.00018.42
8.0.270.0000.00918.14
8.0.260.0060.00018.45
8.0.250.0000.00816.99
8.0.240.0000.00717.02
8.0.230.0000.00717.13
8.0.220.0030.00617.09
8.0.210.0000.00816.96
8.0.200.0030.00317.13
8.0.190.0030.00517.08
8.0.180.0060.00317.02
8.0.170.0060.00317.07
8.0.160.0040.00417.05
8.0.150.0040.00416.86
8.0.140.0000.00717.03
8.0.130.0060.00013.47
8.0.120.0080.00016.92
8.0.110.0030.00516.97
8.0.100.0000.00717.09
8.0.90.0000.00716.86
8.0.80.0070.01216.99
8.0.70.0040.00416.86
8.0.60.0000.00716.84
8.0.50.0000.00716.89
8.0.30.0030.01417.00
8.0.20.0090.00917.13
8.0.10.0080.01617.08
8.0.00.0100.01217.04
7.4.330.0000.00515.55
7.4.320.0000.00616.69
7.4.300.0060.00016.74
7.4.290.0080.00016.70
7.4.280.0000.00916.67
7.4.270.0000.00716.73
7.4.260.0000.00613.37
7.4.250.0050.00316.64
7.4.240.0030.00316.68
7.4.230.0000.00816.80
7.4.220.0030.00316.66
7.4.210.0100.00616.71
7.4.200.0000.00716.79
7.4.160.0040.01516.76
7.4.150.0110.00516.69
7.4.140.0080.01416.64
7.4.130.0080.00816.75
7.4.120.0080.00716.70
7.4.110.0080.00716.66
7.4.100.0080.00816.72
7.4.90.0080.00816.74
7.4.80.0060.01016.55
7.4.70.0080.00916.65
7.4.60.0030.01416.61
7.4.50.0080.01116.64
7.4.40.0150.00316.53
7.4.30.0120.00916.66
7.4.20.0130.00516.65
7.4.10.0110.00916.52
7.4.00.0090.00916.76
7.3.330.0040.00416.50
7.3.320.0060.00013.33
7.3.310.0070.00016.58
7.3.300.0070.00016.54
7.3.290.0070.00716.55
7.3.270.0060.00816.51
7.3.260.0090.00916.46
7.3.250.0070.01016.50
7.3.240.0070.00916.51
7.3.230.0060.01116.49
7.3.220.0080.00816.37
7.3.210.0090.00616.35
7.3.200.0070.00816.38
7.3.190.0080.00916.34
7.3.180.0090.00716.42
7.3.170.0090.00916.45
7.3.160.0070.01216.36
7.3.150.0130.00816.29
7.3.140.0170.00316.40
7.3.130.0040.01716.34
7.3.120.0110.00716.35
7.3.110.0050.01216.26
7.3.100.0110.00416.30
7.3.90.0030.01216.67
7.3.80.0110.00716.45
7.3.70.0040.01116.56
7.3.60.0080.00716.54
7.3.50.0070.00916.59
7.3.40.0090.00816.64
7.3.30.0070.01116.63
7.3.20.0140.00416.59
7.3.10.0080.00916.48
7.3.00.0110.00516.52
7.2.340.0180.00716.60
7.2.330.0180.00816.56
7.2.320.0140.01416.57
7.2.310.0180.01416.66
7.2.300.0250.00316.49
7.2.290.0190.01216.57
7.2.280.0080.01416.49
7.2.270.0160.01116.51
7.2.260.0100.00716.49
7.2.250.0040.01416.64
7.2.240.0090.00916.57
7.2.230.0060.01216.50
7.2.220.0130.00616.61
7.2.210.0080.01116.48
7.2.200.0090.00916.63
7.2.190.0090.00916.59
7.2.180.0120.00416.63
7.2.170.0000.01716.63
7.2.160.0080.01216.62
7.2.150.0150.00916.69
7.2.140.0060.01216.81
7.2.130.0090.01116.79
7.2.120.0110.00816.75
7.2.110.0070.01416.60
7.2.100.0030.01416.78
7.2.90.0100.00716.79
7.2.80.0100.00816.83
7.2.70.0820.00316.72
7.2.60.0080.01116.70
7.2.50.0140.00916.64
7.2.40.0140.00616.77
7.2.30.0110.00716.74
7.2.20.0120.00616.75
7.2.10.0090.00916.63
7.2.00.0110.00616.64
7.1.330.0160.01015.75
7.1.320.0130.01315.77
7.1.310.0200.00615.79
7.1.300.0140.01115.78
7.1.290.0130.00915.80
7.1.280.0160.01115.74
7.1.270.0170.00615.76
7.1.260.0090.01515.74
7.1.250.0100.01415.60
7.1.240.0180.00715.55
7.1.230.0130.01015.70
7.1.220.0080.01615.70
7.1.210.0150.00815.66
7.1.200.0200.00815.59
7.1.190.0220.00415.74
7.1.180.0090.01815.60
7.1.170.0140.00915.59
7.1.160.0160.00715.68
7.1.150.0110.01115.64
7.1.140.0130.01015.54
7.1.130.0110.01115.56
7.1.120.0170.00415.63
7.1.110.0460.00315.70
7.1.100.0160.00615.63
7.1.90.0150.01115.71
7.1.80.0110.01115.75
7.1.70.0190.00915.48
7.1.60.0110.01115.89
7.1.50.0180.00915.81
7.1.40.0180.00515.84
7.1.30.0120.01015.67
7.1.20.0130.01315.69
7.1.10.0370.01215.71
7.1.00.0170.01015.58
7.0.330.0160.00515.25
7.0.320.0110.01215.38
7.0.310.0160.01015.32
7.0.300.0170.00615.29
7.0.290.0190.00615.23
7.0.280.0220.00415.32
7.0.270.0130.00815.47
7.0.260.0190.00615.40
7.0.250.0160.00715.46
7.0.240.0120.00915.48
7.0.230.0200.00415.48
7.0.220.0190.00915.39
7.0.210.0160.00615.40
7.0.200.0220.00415.37
7.0.190.0240.00315.27
7.0.180.0180.00315.36
7.0.170.0200.00815.34
7.0.160.0170.00415.25
7.0.150.0200.00315.22
7.0.140.0110.01215.27
7.0.130.0180.00615.44
7.0.120.0190.00315.46
7.0.110.0120.01015.36
7.0.100.0230.00615.32
7.0.90.0140.00915.37
7.0.80.0190.00315.32
7.0.70.0250.00015.18
7.0.60.0090.01215.20
7.0.50.0090.01415.22
7.0.40.0120.00815.36
7.0.30.0140.00715.44
7.0.20.0100.01015.22
7.0.10.0120.00815.29
7.0.00.0160.00515.34
5.6.400.0150.00815.73
5.6.390.0170.01215.83
5.6.380.0170.00815.76
5.6.370.0130.00915.72
5.6.360.0130.01315.73
5.6.350.0080.01715.70
5.6.340.0170.00815.69
5.6.330.0170.00715.70
5.6.320.0120.01215.65
5.6.310.0130.01015.73
5.6.300.0190.00715.63
5.6.290.0140.01115.71
5.6.280.0360.00415.88
5.6.270.0150.00915.72
5.6.260.0100.01315.82
5.6.250.0150.00915.77
5.6.240.0190.00815.90
5.6.230.0150.00715.75
5.6.220.0190.00415.80
5.6.210.0100.01315.87
5.6.200.0180.00515.95
5.6.190.0190.00315.93
5.6.180.0190.01015.95
5.6.170.0170.00615.90
5.6.160.0050.01916.04
5.6.150.0120.01215.99
5.6.140.0100.01315.97
5.6.130.0120.01215.93
5.6.120.0100.01315.89
5.6.110.0060.01715.79
5.6.100.0200.01015.85
5.6.90.0120.01215.74
5.6.80.0200.00315.71
5.6.70.0120.00615.89
5.6.60.0100.01015.77
5.6.50.0090.00915.68
5.6.40.0100.01015.83
5.6.30.0130.01015.84
5.6.20.0210.01015.59
5.6.10.0110.01115.73
5.6.00.0040.01615.72
5.5.380.0110.01116.13
5.5.370.0160.00815.97
5.5.360.0150.00915.59
5.5.350.0150.00815.63
5.5.340.0190.00415.66
5.5.330.0110.01115.65
5.5.320.0140.00915.62
5.5.310.0140.00815.64
5.5.300.0060.01715.63
5.5.290.0150.00815.82
5.5.280.0120.01215.75
5.5.270.0120.01215.68
5.5.260.0110.01115.74
5.5.250.0200.00815.80
5.5.240.0160.00715.89
5.5.230.0060.01415.84
5.5.220.0040.01415.89
5.5.210.0070.01115.86
5.5.200.0100.01015.55
5.5.190.0110.01415.79
5.5.180.0140.01115.64
5.5.170.0100.01115.65
5.5.160.0220.00415.67
5.5.150.0190.00415.53
5.5.140.0130.01015.54
5.5.130.0160.00515.55
5.5.120.0180.00415.58
5.5.110.0160.01015.47
5.5.100.0200.00515.79
5.5.90.0060.01215.49
5.5.80.0040.01415.61
5.5.70.0060.01015.52
5.5.60.0180.01215.75
5.5.50.0160.00615.57
5.5.40.0090.01315.79
5.5.30.0200.00315.64
5.5.20.0250.00315.91
5.5.10.0150.01315.72
5.5.00.0060.01815.55
5.4.450.0140.00412.56
5.4.440.0060.01212.54
5.4.430.0060.01212.52
5.4.420.0130.00512.68
5.4.410.0090.00912.53
5.4.400.0060.00612.60
5.4.390.0110.00712.52
5.4.380.0100.00312.44
5.4.370.0030.01012.50
5.4.360.0080.00612.46
5.4.350.0140.00312.48
5.4.340.0100.00712.45
5.4.330.0100.00712.36
5.4.320.0180.00412.62
5.4.310.0070.01512.54
5.4.300.0160.00012.51
5.4.290.0110.00312.55
5.4.280.0120.00312.55
5.4.270.0100.01012.55
5.4.260.0120.00812.48
5.4.250.0100.00512.50
5.4.240.0090.00612.63
5.4.230.0060.01112.27
5.4.220.0170.00012.34
5.4.210.0120.00612.34
5.4.200.0130.00312.29
5.4.190.0110.00712.26
5.4.180.0130.00512.23
5.4.170.0090.00912.34
5.4.160.0080.00812.33
5.4.150.0130.00512.38
5.4.140.0090.00912.48
5.4.130.0050.01012.48
5.4.120.0140.00512.53
5.4.110.0120.00412.64
5.4.100.0050.01412.61
5.4.90.0150.00812.63
5.4.80.0060.00912.44
5.4.70.0110.00712.47
5.4.60.0090.00512.57
5.4.50.0120.00612.44
5.4.40.0050.00912.43
5.4.30.0110.00812.57
5.4.20.0160.00312.56
5.4.10.0090.00812.57
5.4.00.0140.00312.50
5.3.290.0140.00712.84
5.3.280.0040.01812.58
5.3.270.0110.00812.64
5.3.260.0040.01112.70
5.3.250.0110.00712.64
5.3.240.0000.01212.51
5.3.230.0120.00612.66
5.3.220.0080.01112.77
5.3.210.0130.00612.63
5.3.200.0110.00812.68
5.3.190.0190.00312.70
5.3.180.0090.01012.98
5.3.170.0160.00812.83
5.3.160.0100.00712.86
5.3.150.0090.00612.76
5.3.140.0130.00612.82
5.3.130.0040.01612.73
5.3.120.0100.00712.73
5.3.110.0090.00912.73
5.3.100.0080.00812.71
5.3.90.0110.00812.77
5.3.80.0090.00912.79
5.3.70.0100.01012.83
5.3.60.0090.00912.77
5.3.50.0160.00412.76
5.3.40.0080.01112.67
5.3.30.0090.00912.68
5.3.20.0050.01512.55
5.3.10.0110.00712.52
5.3.00.0110.01112.46
5.2.170.0040.01111.86
5.2.160.0080.00811.86
5.2.150.0120.00311.78
5.2.140.0110.00411.86
5.2.130.0040.01211.82
5.2.120.0140.00411.80
5.2.110.0120.00311.71
5.2.100.0090.00611.71
5.2.90.0070.00811.72
5.2.80.0170.00011.78
5.2.70.0070.01011.89
5.2.60.0070.00711.82
5.2.50.0100.00411.82
5.2.40.0120.00311.65
5.2.30.0030.01111.72
5.2.20.0060.00811.57
5.2.10.0070.01011.46
5.2.00.0090.00711.36
5.1.60.0130.00010.77
5.1.50.0080.00610.79
5.1.40.0080.00610.91
5.1.30.0050.00811.13
5.1.20.0070.00710.82
5.1.10.0050.00910.92
5.1.00.0070.00710.64
5.0.50.0070.00410.30
5.0.40.0090.00310.30
5.0.30.0110.00010.30
5.0.20.0070.00510.30
5.0.10.0090.00210.30
5.0.00.0040.01110.30
4.4.90.0040.00410.30
4.4.80.0080.00010.30
4.4.70.0070.00010.30
4.4.60.0070.00010.30
4.4.50.0070.00010.30
4.4.40.0000.00810.30
4.4.30.0070.00010.30
4.4.20.0030.00610.30
4.4.10.0070.00010.30
4.4.00.0050.00310.30
4.3.110.0060.00310.30
4.3.100.0050.00210.30
4.3.90.0020.00510.30
4.3.80.0000.00710.30
4.3.70.0090.00010.30
4.3.60.0080.00310.30
4.3.50.0060.00310.30
4.3.40.0050.00210.30
4.3.30.0030.00310.30
4.3.20.0040.00410.30
4.3.10.0000.00610.30
4.3.00.0040.00210.30

preferences:
39.08 ms | 403 KiB | 5 Q