3v4l.org

run code in 300+ PHP versions simultaneously
<?php $max_n=100010; $n=99900; $tmp_str=str_repeat('b',$n); $go=true; while (($go)&&($n<=$max_n)) { $n++; $tmp_str.='b'; $str='a'.$tmp_str.'a'; $go=preg_match('/a.*?a/sim', $str); if (!$go) { echo 'error on length '.strlen($str); die; } } echo ' ok';

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)
8.3.60.0070.03317.00
8.3.50.0100.04322.19
8.3.40.0070.03419.25
8.3.30.0100.03619.52
8.3.20.0040.01820.41
8.3.10.0070.01423.65
8.3.00.0060.01817.88
8.2.180.0000.03918.58
8.2.170.0130.02622.96
8.2.160.0130.02520.36
8.2.150.0090.01224.18
8.2.140.0030.01724.66
8.2.130.0030.01726.16
8.2.120.0090.01222.11
8.2.110.0100.02722.25
8.2.100.0070.02018.28
8.2.90.0000.02219.34
8.2.80.0040.01918.14
8.2.70.0060.01618.13
8.2.60.0070.01618.18
8.2.50.0040.01918.13
8.2.40.0060.01618.53
8.2.30.0070.01718.50
8.2.20.0040.01918.13
8.2.10.0030.01918.46
8.2.00.0070.02718.16
8.1.280.0000.03825.92
8.1.270.0030.01924.00
8.1.260.0070.01426.35
8.1.250.0070.01428.09
8.1.240.0040.03223.89
8.1.230.0040.02119.34
8.1.220.0060.01618.04
8.1.210.0070.01518.77
8.1.200.0030.02117.85
8.1.190.0040.01917.66
8.1.180.0040.01918.10
8.1.170.0080.01518.96
8.1.160.0030.01822.30
8.1.150.0000.02318.97
8.1.140.0060.01517.91
8.1.130.0000.02118.06
8.1.120.0060.01517.75
8.1.110.0030.01917.84
8.1.100.0030.01917.78
8.1.90.0060.01617.87
8.1.80.0040.01817.93
8.1.70.0040.01817.84
8.1.60.0030.03418.05
8.1.50.0070.03017.84
8.1.40.0030.03417.82
8.1.30.0000.03718.03
8.1.20.0030.03518.06
8.1.10.0070.03117.89
8.1.00.0030.03417.84
8.0.300.0060.01518.77
8.0.290.0090.01217.40
8.0.280.0070.01518.67
8.0.270.0000.02117.47
8.0.260.0030.01717.43
8.0.250.0030.01717.30
8.0.240.0030.02217.33
8.0.230.0000.02117.31
8.0.220.0000.02117.30
8.0.210.0030.01917.29
8.0.200.0060.01517.35
8.0.190.0000.03617.38
8.0.180.0000.03717.33
8.0.170.0030.03417.33
8.0.160.0030.03317.29
8.0.150.0070.03017.18
8.0.140.0000.03717.17
8.0.130.0030.03513.75
8.0.120.0030.03617.27
8.0.110.0070.03017.24
8.0.100.0000.03717.18
8.0.90.0070.03017.23
8.0.80.0130.04017.25
8.0.70.0070.03117.13
8.0.60.0070.03017.32
8.0.50.0070.03017.09
8.0.30.0120.05017.37
8.0.20.0100.04117.65
8.0.10.0070.03017.49
8.0.00.0150.03517.40
7.4.330.0060.01515.00
7.4.320.0060.01616.99
7.4.300.0070.01417.10
7.4.290.0000.03617.00
7.4.280.0030.03317.02
7.4.270.0100.02717.11
7.4.260.0030.03317.09
7.4.250.0000.03716.82
7.4.240.0060.03017.12
7.4.230.0030.03316.99
7.4.220.0070.04617.09
7.4.210.0100.04017.02
7.4.200.0040.03216.98
7.4.190.0070.03017.08
7.4.160.0100.04416.98
7.4.150.0070.04417.40
7.4.140.0090.04417.86
7.4.130.0100.04616.89
7.4.120.0080.04217.08
7.4.110.0130.04616.95
7.4.100.0100.03616.82
7.4.90.0100.03716.97
7.4.80.0060.05219.39
7.4.70.0060.04116.98
7.4.60.0070.04416.94
7.4.50.0000.04916.84
7.4.40.0030.03722.77
7.4.30.0110.03717.08
7.4.10.0070.03715.48
7.4.00.0080.03015.28
7.3.330.0000.03413.60
7.3.320.0030.02913.68
7.3.310.0070.02916.77
7.3.300.0040.03116.71
7.3.290.0070.03416.76
7.3.280.0120.03616.74
7.3.270.0120.03417.40
7.3.260.0100.03816.77
7.3.250.0050.04316.87
7.3.240.0100.04817.07
7.3.230.0070.04116.96
7.3.210.0070.04416.70
7.3.200.0090.04619.39
7.3.190.0100.03816.93
7.3.180.0030.04416.74
7.3.170.0130.03317.00
7.3.160.0180.03117.01
7.3.130.0100.03515.08
7.3.120.0050.03315.31
7.3.110.0130.03215.59
7.3.100.0130.02215.39
7.3.90.0100.03015.50
7.3.80.0000.03715.18
7.3.70.0070.02815.35
7.3.60.0070.02615.41
7.3.50.0000.04115.15
7.3.40.0000.03515.31
7.3.30.0100.02015.12
7.3.20.0070.03016.90
7.3.10.0060.03116.97
7.3.00.0000.03116.63
7.2.330.0190.03917.01
7.2.320.0070.04617.20
7.2.310.0130.03517.08
7.2.300.0070.04017.22
7.2.290.0100.03717.10
7.2.260.0030.03915.62
7.2.250.0130.03015.66
7.2.240.0030.03115.60
7.2.230.0070.02715.44
7.2.220.0030.03515.51
7.2.210.0030.03315.60
7.2.200.0030.03115.46
7.2.190.0040.02915.50
7.2.180.0100.02915.52
7.2.170.0030.03015.57
7.2.160.0100.02815.57
7.2.150.0100.02617.06
7.2.140.0070.03117.20
7.2.130.0060.02617.22
7.2.120.0040.02817.27
7.2.110.0000.03017.23
7.2.100.0030.02717.07
7.2.90.0000.03017.24
7.2.80.0030.02717.22
7.2.70.0070.03017.11
7.2.60.0050.03217.25
7.2.50.0040.02816.91
7.2.40.0030.03417.24
7.2.30.0070.03717.01
7.2.20.0100.02617.28
7.2.10.0030.02717.11
7.2.00.0050.03118.36
7.1.330.0070.03016.02
7.1.320.0030.03316.15
7.1.310.0070.02715.83
7.1.300.0060.02916.00
7.1.290.0070.03415.95
7.1.280.0030.02915.95
7.1.270.0000.03015.95
7.1.260.0000.03815.96
7.1.250.0060.02616.16
7.1.240.0030.02716.15
7.1.230.0030.02616.12
7.1.220.0120.02516.03
7.1.210.0000.02916.10
7.1.200.0050.02715.90
7.1.190.0030.03016.08
7.1.180.0040.02915.79
7.1.170.0030.03216.00
7.1.160.0070.02716.16
7.1.150.0060.02815.90
7.1.140.0060.02916.09
7.1.130.0000.03115.77
7.1.120.0060.03215.88
7.1.110.0070.02816.03
7.1.100.0070.02717.14
7.1.90.0030.02916.14
7.1.80.0120.02216.13
7.1.70.0040.02916.67
7.1.60.0110.03417.62
7.1.50.0100.03425.58
7.1.40.0000.03015.68
7.1.30.0030.02715.71
7.1.20.0030.03416.00
7.1.10.0030.02916.11
7.1.00.0030.07019.25
7.0.330.0030.03015.44
7.0.320.0000.03415.44
7.0.310.0070.03015.63
7.0.300.0030.02915.29
7.0.290.0030.02715.43
7.0.280.0100.02315.70
7.0.270.0000.03015.51
7.0.260.0060.02915.39
7.0.250.0070.02615.55
7.0.240.0000.03115.82
7.0.230.0060.02715.71
7.0.220.0070.02915.62
7.0.210.0030.02815.42
7.0.200.0070.02815.45
7.0.190.0060.02815.84
7.0.180.0030.03015.48
7.0.170.0100.02615.54
7.0.160.0030.03215.81
7.0.150.0000.03415.62
7.0.140.0070.06318.88
7.0.130.0060.02915.48
7.0.120.0040.03215.40
7.0.110.0000.03415.67
7.0.100.0000.03015.64
7.0.90.0030.03115.73
7.0.80.0060.03315.57
7.0.70.0040.02915.50
7.0.60.0000.05017.98
7.0.50.0030.07716.93
7.0.40.0050.04516.94
7.0.30.0250.05817.03
7.0.20.0200.06116.85
7.0.10.0140.06916.91
7.0.00.0070.04416.81
5.6.400.0000.14215.19
5.6.390.0130.14714.76
5.6.380.0070.13415.11
5.6.370.0000.15215.06
5.6.360.0030.16015.24
5.6.350.0070.13114.95
5.6.340.0030.14315.04
5.6.330.0030.15114.95
5.6.320.0030.13815.34
5.6.310.0100.14915.07
5.6.300.0000.16115.16
5.6.290.0030.16114.61
5.6.280.0080.25318.23
5.6.270.0000.14514.95
5.6.260.0000.13815.20
5.6.250.0030.14114.75
5.6.240.0100.18115.32
5.6.230.0000.15914.82
5.6.220.0070.13615.13
5.6.210.0050.16718.10
5.6.200.0080.15416.76
5.6.190.0080.18918.05
5.6.180.0170.16717.87
5.6.170.0220.17917.92
5.6.160.0050.15518.04
5.6.150.0050.17516.96
5.6.140.0050.16116.88
5.6.130.0080.17816.74
5.6.120.0080.15118.21
5.6.110.0120.18618.48
5.6.100.0000.14818.19
5.6.90.0000.18518.46
5.6.80.0100.15217.95
5.6.70.2280.15517.83
5.6.60.0070.16114.75
5.6.50.0030.13715.04
5.6.40.0100.15614.86
5.6.30.0030.15014.78
5.6.20.0070.13814.83
5.6.10.0070.16215.00
5.6.00.0000.15714.97
5.5.380.0030.15715.13
5.5.370.0070.18115.28
5.5.360.0100.14914.90
5.5.350.0080.18918.08
5.5.340.0080.17616.78
5.5.330.0070.15917.84
5.5.320.0200.17117.94
5.5.310.0070.17917.80
5.5.300.0050.15916.68
5.5.290.0070.21716.68
5.5.280.0070.15718.15
5.5.270.0050.19318.16
5.5.260.0100.18518.09
5.5.250.0120.19317.96
5.5.240.0030.17717.96
5.5.230.0000.19514.71
5.5.220.0100.13215.04
5.5.210.0070.14914.64
5.5.200.0070.17214.95
5.5.190.0100.17214.89
5.5.180.0030.17814.78
5.5.170.0070.17514.77
5.5.160.0070.15614.93
5.5.150.0100.18214.84
5.5.140.0000.17814.80
5.5.130.0030.17014.74
5.5.120.0070.18715.11
5.5.110.0100.14014.70
5.5.100.0100.19514.50
5.5.90.0000.13814.58
5.5.80.0030.13414.68
5.5.70.0070.14214.58
5.5.60.0030.21414.66
5.5.50.0130.18314.48
5.5.40.0030.18314.93
5.5.30.0030.14514.90
5.5.20.0070.16914.96
5.5.10.0070.18114.63
5.5.00.0070.16214.74
5.4.450.0130.15316.12
5.4.440.0170.18716.09
5.4.430.0130.14716.06
5.4.420.0120.15216.06
5.4.410.0120.16215.95
5.4.400.0150.14415.83
5.4.390.0130.14215.95
5.4.380.0130.16015.85
5.4.370.0100.14016.01
5.4.360.0150.14815.90
5.4.350.0130.14715.78
5.4.340.0150.14015.86
5.4.330.0030.13512.30
5.4.320.0130.13815.90
5.4.310.0130.14815.92
5.4.300.0070.15215.90
5.4.290.0180.14215.90
5.4.280.0200.16415.85
5.4.270.0150.15316.00
5.4.260.0180.15215.78
5.4.250.0200.14415.91
5.4.240.0320.14815.87
5.4.230.0180.18115.91
5.4.220.0100.20615.76
5.4.210.0170.17615.90
5.4.200.0100.16115.99
5.4.190.0130.16616.01
5.4.180.0120.16515.82
5.4.170.0130.17015.91
5.4.160.0170.16315.84
5.4.150.0230.17515.91
5.4.140.0120.14814.58
5.4.130.0220.18514.55
5.4.120.0220.17414.53
5.4.110.0330.13614.60
5.4.100.0180.16514.57
5.4.90.0050.18114.48
5.4.80.0020.21014.63
5.4.70.0020.16114.56
5.4.60.0230.16414.56
5.4.50.0050.20214.50
5.4.40.0050.22714.56
5.4.30.0050.19114.58
5.4.20.0000.19114.60
5.4.10.0000.19714.50
5.4.00.0070.18814.28
5.3.290.0100.12713.60
5.3.280.0200.15213.53
5.3.270.0200.16013.53
5.3.260.0220.15313.49
5.3.250.0250.14913.53
5.3.240.0150.14713.47
5.3.230.0170.17613.47
5.3.220.0130.12113.46
5.3.210.0150.15413.55
5.3.200.0130.13913.49
5.3.190.0050.16113.53
5.3.180.0030.14913.56
5.3.170.0000.15413.45
5.3.160.0050.17513.49
5.3.150.0020.16213.48
5.3.140.0030.19213.52
5.3.130.0020.15213.55
5.3.120.0020.16213.52
5.3.110.0000.16513.54
5.3.100.0020.17313.34
5.3.90.0080.17413.24
5.3.80.0070.14613.23
5.3.70.0080.16213.24
5.3.60.0040.13813.24
5.3.50.0000.14713.12
5.3.40.0050.15113.15
5.3.30.0000.12913.16
5.3.20.0080.14113.09
5.3.10.0070.13613.11
5.3.00.0050.11213.02
5.2.170.0030.17312.04
5.2.160.0030.17712.04
5.2.150.0000.17312.04
5.2.140.0000.12012.04
5.2.130.0000.17712.04
5.2.120.0000.15012.04
5.2.110.0070.15312.04
5.2.100.0030.18012.04
5.2.90.0030.12012.04
5.2.80.0030.16012.04
5.2.70.0100.14312.04
5.2.60.0000.14712.04
5.2.50.0030.12012.04
5.2.40.0000.11312.04
5.2.30.0030.12312.04
5.2.20.0100.17312.04
5.2.10.0000.16012.04
5.2.00.0030.13312.04
5.1.60.0030.14312.04
5.1.50.0070.15712.04
5.1.40.0070.16712.04
5.1.30.0030.17012.04
5.1.20.0030.19712.04
5.1.10.0030.15712.04
5.1.00.0030.12312.04
5.0.50.0070.17012.04
5.0.40.0000.15712.04
5.0.30.0030.17012.04
5.0.20.0030.11312.04
5.0.10.0000.10012.04
5.0.00.0030.14012.04
4.4.90.0000.11712.04
4.4.80.0000.16712.04
4.4.70.0000.14312.04
4.4.60.0000.11012.04
4.4.50.0000.11012.04
4.4.40.0030.18012.04
4.4.30.0000.15312.04
4.4.20.0000.17012.04
4.4.10.0000.17712.04
4.4.00.0030.15012.04
4.3.110.0030.15312.04
4.3.100.0000.16012.04
4.3.90.0000.17012.04
4.3.80.0070.13312.04
4.3.70.0000.12012.04
4.3.60.0070.13312.04
4.3.50.0000.14012.04
4.3.40.0070.15312.04
4.3.30.0000.11012.04
4.3.20.0000.16012.04
4.3.10.0070.10312.04
4.3.00.0000.16312.04

preferences:
34.78 ms | 401 KiB | 5 Q