3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'WWWDDWWWLLWLLLL'; // The regex matches any character -> . in a capture group () // plus as much identical characters as possible following it -> \1+ $pattern = '/(.)\1+/'; preg_match_all($pattern, $string, $m); // sort by their length // sort by their length usort($m[0], 'length_sort'); function length_sort($a, $b) { return (strlen($a) < strlen($b)) ? 1 : -1; } echo "Longest sequence: " . $m[0][0] . "\n";

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)
8.3.60.0070.01418.68
8.3.50.0230.00922.01
8.3.40.0140.00719.14
8.3.30.0030.01019.04
8.3.20.0050.00520.16
8.3.10.0080.00023.61
8.3.00.0080.00019.38
8.2.180.0110.00418.66
8.2.170.0100.01022.96
8.2.160.0100.00720.27
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00419.68
8.2.110.0030.00722.01
8.2.100.0090.00318.00
8.2.90.0040.00419.40
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0040.00417.93
8.2.50.0070.00718.07
8.2.40.0040.00418.34
8.2.30.0000.00818.16
8.2.20.0080.00017.97
8.2.10.0000.00718.06
8.2.00.0070.00317.91
8.1.280.0180.00025.92
8.1.270.0080.00022.13
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00323.96
8.1.230.0040.00719.00
8.1.220.0050.00317.79
8.1.210.0030.00518.77
8.1.200.0100.00317.38
8.1.190.0000.00817.35
8.1.180.0000.00818.10
8.1.170.0080.00020.75
8.1.160.0000.00822.05
8.1.150.0000.00718.92
8.1.140.0000.00717.66
8.1.130.0000.00717.82
8.1.120.0000.00817.59
8.1.110.0050.00217.59
8.1.100.0020.00517.50
8.1.90.0020.00517.54
8.1.80.0050.00317.56
8.1.70.0000.00817.59
8.1.60.0000.00817.66
8.1.50.0000.00917.55
8.1.40.0040.00417.70
8.1.30.0000.00817.71
8.1.20.0030.00617.86
8.1.10.0050.00317.73
8.1.00.0080.00017.64
8.0.300.0040.00418.77
8.0.290.0000.00716.88
8.0.280.0030.00318.46
8.0.270.0070.00017.25
8.0.260.0030.00317.29
8.0.250.0030.00317.00
8.0.240.0000.00817.15
8.0.230.0070.00017.14
8.0.220.0040.00416.94
8.0.210.0000.00616.91
8.0.200.0030.00317.00
8.0.190.0040.00417.08
8.0.180.0060.00317.05
8.0.170.0000.00817.07
8.0.160.0030.00517.04
8.0.150.0000.00817.04
8.0.140.0050.00316.98
8.0.130.0000.00513.52
8.0.120.0030.00517.01
8.0.110.0040.00416.96
8.0.100.0080.00016.92
8.0.90.0050.00217.09
8.0.80.0060.00917.03
8.0.70.0040.00417.06
8.0.60.0000.00716.80
8.0.50.0040.00416.78
8.0.30.0080.01317.11
8.0.20.0080.01117.40
8.0.10.0070.00017.06
8.0.00.0160.01016.86
7.4.330.0030.00315.05
7.4.320.0000.00616.57
7.4.300.0070.00016.67
7.4.290.0040.00416.71
7.4.280.0040.00516.76
7.4.270.0050.00316.79
7.4.260.0040.00316.64
7.4.250.0040.00416.54
7.4.240.0030.00316.66
7.4.230.0000.00716.76
7.4.220.0090.00916.89
7.4.210.0150.00616.84
7.4.200.0000.00716.70
7.4.160.0040.01216.81
7.4.150.0070.01417.40
7.4.140.0110.00717.86
7.4.130.0140.00616.72
7.4.120.0080.01416.60
7.4.110.0060.01216.43
7.4.100.0120.01116.70
7.4.90.0040.01216.82
7.4.80.0130.01019.39
7.4.70.0060.01016.61
7.4.60.0130.00316.64
7.4.50.0020.00216.79
7.4.40.0040.01216.90
7.4.30.0130.00316.57
7.4.00.0070.00715.02
7.3.330.0030.00313.32
7.3.320.0060.00013.46
7.3.310.0080.00016.27
7.3.300.0050.00216.46
7.3.290.0050.01016.44
7.3.280.0110.00816.50
7.3.270.0120.00617.40
7.3.260.0100.00716.74
7.3.250.0100.00916.69
7.3.240.0090.01216.68
7.3.230.0060.00916.58
7.3.210.0060.01016.66
7.3.200.0110.01119.39
7.3.190.0090.01216.72
7.3.180.0130.00616.68
7.3.170.0040.01116.72
7.3.160.0090.00616.55
7.2.330.0040.01316.80
7.2.320.0100.00916.91
7.2.310.0060.01217.02
7.2.300.0100.00717.05
7.2.290.0070.01016.84
7.2.60.0040.00717.23
7.1.200.0100.00016.09
7.1.70.0040.00717.53
7.1.60.0160.00619.32
7.1.50.0110.01116.88
7.1.00.0030.07722.59
7.0.200.0180.01814.96
7.0.140.0030.07322.07
7.0.70.0000.08721.68
7.0.60.0070.05321.84
7.0.50.0070.04322.12
7.0.40.0070.07319.92
7.0.30.0130.07320.16
7.0.20.0030.07020.04
7.0.10.0030.05720.14
7.0.00.0030.04320.12
5.6.220.0000.05720.68
5.6.210.0030.08320.41
5.6.200.0030.06021.04
5.6.190.0130.05720.93
5.6.180.0030.08021.06
5.6.170.0030.06020.96
5.6.160.0030.06020.95
5.6.150.0070.05021.04
5.6.140.0200.06321.07
5.6.130.0000.06020.96
5.6.120.0070.07721.05
5.6.110.0070.06721.05
5.6.100.0070.05721.09
5.6.90.0100.06321.03
5.6.80.0070.08020.44
5.6.70.0000.07020.46
5.6.60.0030.08720.41
5.6.50.0030.07720.43
5.6.40.0170.06720.48
5.6.30.0000.08720.38
5.6.20.0030.05720.29
5.6.10.0070.07320.37
5.6.00.0000.04020.52
5.5.360.0070.07020.50
5.5.350.0070.07020.35
5.5.340.0030.07720.92
5.5.330.0030.05720.77
5.5.320.0030.08720.93
5.5.310.0070.07020.88
5.5.300.0030.05020.73
5.5.290.0030.08320.86
5.5.280.0000.08320.64
5.5.270.0000.08020.91
5.5.260.0100.07320.91
5.5.250.0130.08020.57
5.5.240.0000.06720.18
5.5.230.0100.06720.27
5.5.220.0000.07020.02
5.5.210.0030.07020.15
5.5.200.0000.08720.18
5.5.190.0030.07720.22
5.5.180.0030.07720.11
5.5.160.0000.06720.28
5.5.150.0070.07020.23
5.5.140.0030.07320.20
5.5.130.0100.06720.20
5.5.120.0100.07020.08
5.5.110.0030.07720.24
5.5.100.0130.07320.12
5.5.90.0070.07320.16
5.5.80.0030.07020.06
5.5.70.0070.07320.10
5.5.60.0000.08019.93
5.5.50.0000.08020.00
5.5.40.0000.08020.03
5.5.30.0030.04320.13
5.5.20.0000.08020.03
5.5.10.0030.05320.05
5.5.00.0030.07320.08
5.4.450.0000.08019.45
5.4.440.0100.07719.36
5.4.430.0100.06719.48
5.4.420.0000.05719.17
5.4.410.0070.06019.35
5.4.400.0070.07019.04
5.4.390.0000.08019.13
5.4.380.0000.05719.12
5.4.370.0030.06319.12
5.4.360.0000.08719.09
5.4.350.0030.07318.87
5.4.340.0000.06318.85
5.4.320.0030.05019.08
5.4.310.0000.07719.19
5.4.300.0000.06318.84
5.4.290.0000.07719.12
5.4.280.0070.07018.87
5.4.270.0000.07719.15
5.4.260.0170.07019.22
5.4.250.0030.06019.16
5.4.240.0030.08019.15
5.4.230.0000.08019.20
5.4.220.0070.07718.92
5.4.210.0100.06719.02
5.4.200.0000.07719.12
5.4.190.0000.08018.86
5.4.180.0070.07319.04
5.4.170.0070.07018.89
5.4.160.0030.07719.18
5.4.150.0100.07319.10
5.4.140.0100.07016.36
5.4.130.0000.07316.35
5.4.120.0030.06016.27
5.4.110.0030.08316.27
5.4.100.0070.05716.39
5.4.90.0030.06016.34
5.4.80.0130.06716.41
5.4.70.0070.06316.27
5.4.60.0070.06716.44
5.4.50.0000.06716.33
5.4.40.0030.07316.47
5.4.30.0100.06716.47
5.4.20.0000.06316.43
5.4.10.0070.05316.31
5.4.00.0030.07015.65
5.3.290.0100.06314.77
5.3.280.0070.04714.77
5.3.270.0070.07714.77
5.3.260.0030.06714.77
5.3.250.0000.07014.77
5.3.240.0070.06714.77
5.3.230.0070.05014.77
5.3.220.0000.06014.77
5.3.210.0000.07714.77
5.3.200.0070.06014.77
5.3.190.0070.07014.77
5.3.180.0030.07714.77
5.3.170.0070.04714.77
5.3.160.0000.06314.77
5.3.150.0100.05714.77
5.3.140.0000.07714.77
5.3.130.0100.06714.77
5.3.120.0000.07714.77
5.3.110.0070.04014.77
5.3.100.0000.06014.77
5.3.90.0030.06314.77
5.3.80.0000.07314.77
5.3.70.0030.07014.77
5.3.60.0000.07014.77
5.3.50.0000.07314.77
5.3.40.0030.07014.77
5.3.30.0000.07714.77
5.3.20.0130.06314.77
5.3.10.0030.06714.77
5.3.00.0030.07314.77
5.2.170.0030.06014.77
5.2.160.0030.05314.77
5.2.150.0070.06014.77
5.2.140.0000.06314.77
5.2.130.0000.06714.77
5.2.120.0000.06014.77
5.2.110.0070.05314.77
5.2.100.0000.06014.77
5.2.90.0030.06314.77
5.2.80.0000.05714.77
5.2.70.0030.05714.77
5.2.60.0030.05014.77
5.2.50.0000.04714.77
5.2.40.0030.03714.77
5.2.30.0000.05314.77
5.2.20.0030.05014.77
5.2.10.0030.04314.77
5.2.00.0030.05314.77
5.1.60.0000.05014.77
5.1.50.0030.05014.77
5.1.40.0030.05714.77
5.1.30.0000.05714.77
5.1.20.0000.05314.77
5.1.10.0030.04014.77
5.1.00.0000.05014.77
5.0.50.0000.04014.77
5.0.40.0030.03014.77
5.0.30.0030.03014.77
5.0.20.0070.01714.77
5.0.10.0000.02014.77
5.0.00.0000.03014.77
4.4.90.0030.02714.77
4.4.80.0000.03314.77
4.4.70.0030.03314.77
4.4.60.0030.03014.77
4.4.50.0000.02714.77
4.4.40.0000.05014.77
4.4.30.0000.03314.77
4.4.20.0000.03314.77
4.4.10.0000.03714.77
4.4.00.0030.03714.77
4.3.110.0030.01314.77
4.3.100.0030.01714.77
4.3.90.0000.01714.77
4.3.80.0000.02314.77
4.3.70.0000.01314.77
4.3.60.0000.01314.77
4.3.50.0070.01014.77
4.3.40.0000.02314.77
4.3.30.0000.02314.77
4.3.20.0000.02014.77
4.3.10.0000.01714.77
4.3.00.0000.01314.77

preferences:
48.55 ms | 401 KiB | 5 Q