3v4l.org

run code in 300+ PHP versions simultaneously
<?php $re = '/[\t\n]+(?=[^][]*(?:(\[(?:[^][]++|(?1))*])[^][]*)*])/'; $str = "settings:a [\n a:[\n a:a\n b:b\n ]\n b:[\n a:a\n b:b\n ]\n]\n\nsettings:b [\n a:[\n \n\na:a\n b:b\n ]\n]"; echo preg_replace($re, ' ', $str);

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)
8.4.130.0110.01017.92
8.4.120.0110.00720.49
8.4.110.0120.00818.77
8.4.100.0080.01417.96
8.4.90.0050.00418.88
8.4.80.0110.00718.08
8.4.70.0160.00718.05
8.4.60.0120.00819.00
8.4.50.0110.00920.50
8.4.40.0130.00318.11
8.4.30.0140.00720.58
8.4.20.0100.00718.09
8.4.10.0070.01421.45
8.3.260.0060.00316.82
8.3.250.0100.01118.93
8.3.240.0110.00618.75
8.3.230.0130.00616.71
8.3.220.0110.00717.15
8.3.210.0140.00616.91
8.3.200.0020.00716.73
8.3.190.0060.00317.04
8.3.180.0130.00518.68
8.3.170.0150.00416.59
8.3.160.0150.00317.38
8.3.150.0130.00319.17
8.3.140.0000.00820.70
8.3.130.0050.00318.63
8.3.120.0050.00518.79
8.3.110.0040.00420.94
8.3.100.0060.00324.06
8.3.90.0070.00726.77
8.3.80.0000.01016.75
8.3.70.0090.00616.58
8.3.60.0120.00616.50
8.3.50.0150.00323.61
8.3.40.0120.00321.86
8.3.30.0030.01318.96
8.3.20.0060.00324.18
8.3.10.0080.00024.66
8.3.00.0040.00426.16
8.2.290.0080.01120.35
8.2.280.0120.00718.21
8.2.270.0100.01018.71
8.2.260.0030.00616.73
8.2.250.0090.00018.62
8.2.240.0060.00319.20
8.2.230.0000.00822.58
8.2.220.0040.00937.54
8.2.210.0070.00726.77
8.2.200.0080.00318.41
8.2.190.0110.00716.59
8.2.180.0130.00725.92
8.2.170.0070.01418.94
8.2.160.0100.00722.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00321.23
8.2.110.0100.00019.37
8.2.100.0100.00317.97
8.2.90.0090.00018.22
8.2.80.0080.00019.07
8.2.70.0080.00017.88
8.2.60.0080.00417.93
8.2.50.0040.00418.07
8.2.40.0080.00018.30
8.2.30.0040.00418.23
8.2.20.0070.00018.04
8.2.10.0000.00719.16
8.2.00.0040.00419.19
8.1.330.0100.00823.65
8.1.320.0120.00718.29
8.1.310.0080.00018.48
8.1.300.0150.00419.57
8.1.290.0070.00430.84
8.1.280.0120.00325.92
8.1.270.0090.00622.07
8.1.260.0000.00726.35
8.1.250.0050.00328.09
8.1.240.0000.00923.92
8.1.230.0030.00918.97
8.1.220.0080.00017.79
8.1.210.0030.00518.77
8.1.200.0060.00317.35
8.1.190.0060.00317.11
8.1.180.0030.00618.10
8.1.170.0040.00418.42
8.1.160.0060.00318.99
8.1.150.0000.00718.83
8.1.140.0050.00218.84
8.1.130.0080.00020.04
8.1.120.0050.00217.55
8.1.110.0070.00317.53
8.1.100.0000.00817.54
8.1.90.0070.00017.58
8.1.80.0000.00917.41
8.1.70.0000.00717.57
8.1.60.0030.00717.59
8.1.50.0000.00817.66
8.1.40.0030.00517.59
8.1.30.0030.00517.63
8.1.20.0030.00517.69
8.1.10.0080.00017.68
8.1.00.0040.00417.59
8.0.300.0080.00018.77
8.0.290.0000.00716.75
8.0.280.0070.00018.39
8.0.270.0080.00018.28
8.0.260.0000.00618.52
8.0.250.0070.00017.10
8.0.240.0040.00417.07
8.0.230.0000.00717.11
8.0.220.0060.00017.05
8.0.210.0000.00717.05
8.0.200.0040.00416.92
8.0.190.0040.00416.99
8.0.180.0000.00716.92
8.0.170.0000.00917.02
8.0.160.0070.00317.09
8.0.150.0000.00716.82
8.0.140.0000.00816.79
8.0.130.0000.00813.35
8.0.120.0050.00316.93
8.0.110.0000.00817.07
8.0.100.0080.00016.93
8.0.90.0000.00716.94
8.0.80.0090.01017.02
8.0.70.0000.00716.85
8.0.60.0090.00017.05
8.0.50.0040.00416.83
8.0.30.0030.01317.18
8.0.20.0140.00717.19
8.0.10.0030.00517.19
8.0.00.0100.00816.92
7.4.330.0030.00315.55
7.4.320.0070.00016.71
7.4.300.0000.00716.83
7.4.290.0040.00416.79
7.4.280.0070.00016.64
7.4.270.0000.00716.75
7.4.260.0060.00013.39
7.4.250.0030.00316.69
7.4.240.0040.00416.88
7.4.230.0030.00616.78
7.4.220.0040.00416.63
7.4.210.0080.01016.71
7.4.200.0000.00816.86
7.4.130.0130.01016.52
7.4.120.0150.00616.29
7.4.110.0090.01616.63
7.4.100.0070.01316.82
7.4.90.0160.00916.50
7.4.80.0130.01016.67
7.4.70.0220.00016.71
7.4.60.0120.01216.84
7.4.50.0160.01016.61
7.4.40.0130.01016.25
7.4.30.0040.01516.62
7.4.20.0030.01316.59
7.4.10.0140.00716.55
7.4.00.0100.01016.49
7.3.330.0050.00316.31
7.3.320.0000.00513.20
7.3.310.0040.00416.43
7.3.300.0030.00316.30
7.3.290.0070.00016.41
7.3.260.0100.01316.67
7.3.250.0140.01016.34
7.3.240.0060.01316.65
7.3.230.0170.00516.46
7.3.220.0140.01016.34
7.3.210.0070.01716.41
7.3.200.0100.01016.39
7.3.190.0110.01016.44
7.3.180.0070.01116.30
7.3.170.0140.01016.35
7.3.160.0070.01016.38
7.3.150.0060.01716.89
7.3.140.0030.01416.25
7.3.130.0070.01116.67
7.3.120.0030.02216.29
7.3.110.0120.00616.44
7.3.100.0100.01016.25
7.3.90.0070.01116.49
7.3.80.0070.01116.57
7.3.70.0190.00016.27
7.3.60.0070.01116.23
7.3.50.0190.00016.32
7.3.40.0030.02016.39
7.3.30.0070.01316.36
7.3.20.0130.01016.37
7.3.10.0650.00716.41
7.3.00.0060.01916.41

preferences:
27.64 ms | 403 KiB | 5 Q