3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string='aaaabbbaaaaaabbbb'; var_export(preg_split('/(.)\1*\K/', $string, 0, PREG_SPLIT_NO_EMPTY)); echo "\n\n"; $string='abbbaaaaaabbbb'; // lone leading character var_export(preg_split('/(.)\1*\K/', $string, 0, PREG_SPLIT_NO_EMPTY));

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)
8.5.30.0120.01019.58
8.5.20.0120.00619.66
8.5.10.0100.00816.76
8.5.00.0100.01020.31
8.4.180.0090.00919.78
8.4.170.0120.00920.23
8.4.160.0110.01023.81
8.4.150.0080.00616.99
8.4.140.0080.01317.71
8.4.130.0060.00919.01
8.4.120.0100.01023.97
8.4.110.0120.00718.62
8.4.100.0120.00818.65
8.4.90.0050.00422.34
8.4.80.0110.00918.02
8.4.70.0050.00417.79
8.4.60.0120.00818.52
8.4.50.0080.00318.64
8.4.40.0050.00319.81
8.4.30.0100.00018.66
8.4.20.0170.00318.98
8.4.10.0070.00319.62
8.3.300.0110.01120.99
8.3.290.0120.01120.99
8.3.280.0120.00918.34
8.3.270.0080.01116.57
8.3.260.0100.01116.71
8.3.250.0090.00918.77
8.3.240.0140.00617.13
8.3.230.0120.00816.65
8.3.220.0110.00818.80
8.3.210.0050.00418.50
8.3.200.0070.00216.97
8.3.190.0100.00617.29
8.3.180.0080.00716.65
8.3.170.0070.01117.10
8.3.160.0070.01118.48
8.3.150.0060.01320.54
8.3.140.0060.00317.00
8.3.130.0000.00818.55
8.3.120.0090.00618.92
8.3.110.0090.00020.94
8.3.100.0050.00324.06
8.3.90.0090.00626.77
8.3.80.0090.00016.63
8.3.70.0170.00016.58
8.3.60.0040.01416.75
8.3.50.0130.00318.27
8.3.40.0120.00318.70
8.3.30.0120.00318.75
8.3.20.0040.00424.18
8.3.10.0030.00524.66
8.3.00.0000.00826.16
8.2.300.0130.00922.01
8.2.290.0100.00920.26
8.2.280.0060.00218.40
8.2.270.0070.01116.90
8.2.260.0080.00016.93
8.2.250.0040.00416.54
8.2.240.0070.00316.95
8.2.230.0090.00022.58
8.2.220.0040.00437.54
8.2.210.0100.01026.77
8.2.200.0090.00016.88
8.2.190.0140.00416.88
8.2.180.0100.00725.92
8.2.170.0120.00619.21
8.2.160.0140.00022.96
8.2.150.0030.00625.66
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0110.00419.79
8.2.110.0100.00022.03
8.2.100.0040.00718.03
8.2.90.0000.00819.08
8.2.80.0040.00417.97
8.2.70.0080.00017.75
8.2.60.0080.00017.93
8.2.50.0000.00818.07
8.2.40.0000.00818.28
8.2.30.0000.00718.02
8.2.20.0040.00417.93
8.2.10.0050.00221.16
8.2.00.0030.00519.09
8.1.340.0120.00921.71
8.1.330.0120.00621.79
8.1.320.0120.00716.31
8.1.310.0070.01116.54
8.1.300.0040.01118.19
8.1.290.0030.00618.88
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0130.00726.35
8.1.250.0080.00028.09
8.1.240.0030.00621.98
8.1.230.0070.00722.69
8.1.220.0000.00917.74
8.1.210.0060.00318.77
8.1.200.0030.00617.23
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0030.00618.64
8.1.160.0040.00418.78
8.1.150.0070.00018.75
8.1.140.0030.00518.89
8.1.130.0030.00320.24
8.1.120.0070.00017.45
8.1.110.0040.00417.52
8.1.100.0000.00817.55
8.1.90.0000.00817.59
8.1.80.0030.00717.39
8.1.70.0060.00317.43
8.1.60.0000.00817.69
8.1.50.0040.00417.56
8.1.40.0000.00817.48
8.1.30.0040.00417.71
8.1.20.0030.00517.74
8.1.10.0000.00817.59
8.1.00.0040.00417.59
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0000.00718.50
8.0.270.0040.00418.27
8.0.260.0060.00018.54
8.0.250.0030.00317.06
8.0.240.0030.00317.04
8.0.230.0030.00317.08
8.0.220.0070.00017.04
8.0.210.0050.00317.07
8.0.200.0040.00416.96
8.0.190.0040.00416.99
8.0.180.0060.00317.05
8.0.170.0030.00517.07
8.0.160.0000.00717.06
8.0.150.0000.00717.00
8.0.140.0030.00716.96
8.0.130.0030.00513.45
8.0.120.0080.00017.01
8.0.110.0040.00417.01
8.0.100.0040.00416.92
8.0.90.0080.00016.99
8.0.80.0050.01016.97
8.0.70.0140.00016.97
8.0.60.0030.01217.00
8.0.50.0110.00416.89
8.0.30.0060.00916.93
8.0.20.0060.01316.97
8.0.10.0110.00317.10
8.0.00.0070.00717.10
7.4.330.0000.00516.83
7.4.320.0000.00716.64
7.4.300.0060.00016.57
7.4.290.0040.00416.62
7.4.280.0040.00416.71
7.4.270.0070.00016.64
7.4.260.0060.00013.43
7.4.250.0000.00916.71
7.4.240.0020.00516.70
7.4.230.0000.00716.77
7.4.220.0000.00816.88
7.4.210.0080.00516.82
7.4.200.0150.00316.71
7.4.190.0070.00716.83
7.4.180.0110.00316.75
7.4.160.0070.00616.84
7.4.150.0030.01016.76
7.4.140.0040.01016.62
7.4.130.0090.00616.79
7.4.120.0070.00716.71
7.4.110.0030.01116.55
7.4.100.0050.01016.82
7.4.90.0000.01416.69
7.4.80.0080.00516.69
7.4.70.0050.00816.71
7.4.60.0090.00616.63
7.4.50.0070.00716.71
7.4.40.0030.01016.61
7.4.30.0000.01316.59
7.4.20.0000.01516.51
7.4.10.0060.00816.69
7.4.00.0110.00616.70
7.3.330.0070.00016.25
7.3.320.0030.00313.25
7.3.310.0080.00016.28
7.3.300.0030.00316.30
7.3.290.0030.01216.30
7.3.280.0080.00616.37
7.3.270.0040.00916.23
7.3.260.0090.00516.29
7.3.250.0030.01016.35
7.3.240.0070.01016.30
7.3.230.0030.01016.40
7.3.220.0030.01016.26
7.3.210.0000.01416.17
7.3.200.0070.00716.21
7.3.190.0060.00616.19
7.3.180.0050.00816.33
7.3.170.0070.00616.21
7.3.160.0100.00316.22
7.3.150.0100.00316.23
7.3.140.0070.00716.23
7.3.130.0060.00716.25
7.3.120.0090.00616.33
7.3.110.0040.01116.09
7.3.100.0030.01016.21
7.3.90.0050.00816.51
7.3.80.0030.01016.32
7.3.70.0060.00916.39
7.3.60.0050.01016.55
7.3.50.0050.00816.56
7.3.40.0080.00616.51
7.3.30.0030.01016.50
7.3.20.0050.00816.47
7.3.10.0060.00916.41
7.3.00.0030.01016.48

preferences:
111.82 ms | 1411 KiB | 5 Q