3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = str_repeat('a', 1024 * 1024); // $str = str_repeat('a', 1024); $temp = preg_replace('#.*?^-+[^-]+-+[\r\n ]*$#ms', '', $str, 1); if (preg_last_error() == PREG_BACKTRACK_LIMIT_ERROR) { echo "Backtrack limit was exhausted!\n\n"; } echo strlen($temp);

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)
8.5.30.0090.01218.51
8.5.20.0090.01520.57
8.5.10.0090.01317.83
8.5.00.0150.00921.29
8.4.180.0120.01420.89
8.4.170.0130.01321.75
8.4.160.0130.01324.42
8.4.150.0080.00617.47
8.4.140.0150.00918.90
8.4.130.0160.00719.70
8.4.120.0080.01521.45
8.4.110.0150.00823.25
8.4.100.0130.01119.57
8.4.90.0070.01319.82
8.4.80.0030.00620.52
8.4.70.0090.01420.27
8.4.60.0150.01120.47
8.4.50.0130.01120.39
8.4.40.0140.01019.10
8.4.30.0100.01020.48
8.4.20.0100.01319.25
8.4.10.0060.00322.36
8.3.300.0170.00822.00
8.3.290.0120.01121.93
8.3.280.0120.01419.55
8.3.270.0130.01117.64
8.3.260.0160.00817.97
8.3.250.0110.01119.78
8.3.240.0080.01418.04
8.3.230.0090.00318.05
8.3.220.0120.00919.95
8.3.210.0100.00818.04
8.3.200.0060.00517.63
8.3.190.0070.00218.25
8.3.180.0130.00917.62
8.3.170.0000.02120.56
8.3.160.0070.01418.27
8.3.150.0130.01018.32
8.3.140.0160.00617.68
8.3.130.0050.00518.84
8.3.120.0110.00719.91
8.3.110.0100.00319.56
8.3.100.0070.00417.97
8.3.90.0030.00626.77
8.3.80.0040.00818.68
8.3.70.0040.01317.86
8.3.60.0140.00718.55
8.3.50.0100.01124.23
8.3.40.0140.00419.88
8.3.30.0120.00619.96
8.3.20.0030.00624.18
8.3.10.0070.00324.66
8.3.00.0090.00026.16
8.2.300.0150.01019.22
8.2.290.0110.01021.39
8.2.280.0030.00719.54
8.2.270.0090.01218.69
8.2.260.0090.00017.93
8.2.250.0030.00618.75
8.2.240.0070.01419.18
8.2.230.0040.00820.94
8.2.220.0040.01124.06
8.2.210.0150.00726.77
8.2.200.0040.00817.88
8.2.190.0150.00617.75
8.2.180.0140.01025.92
8.2.170.0110.01120.27
8.2.160.0100.00722.96
8.2.150.0170.00325.66
8.2.140.0050.00524.66
8.2.130.0090.00026.16
8.2.120.0000.00919.61
8.2.110.0040.00821.12
8.2.100.0100.00318.91
8.2.90.0000.00919.00
8.2.80.0030.00719.90
8.2.70.0070.00318.63
8.2.60.0060.00318.75
8.2.50.0060.00318.75
8.2.40.0060.00319.22
8.2.30.0030.00718.96
8.2.20.0090.00019.09
8.2.10.0000.00920.09
8.2.00.0000.00920.21
8.1.340.0110.01318.77
8.1.330.0110.01123.07
8.1.320.0150.00917.21
8.1.310.0120.00917.48
8.1.300.0060.01617.96
8.1.290.0040.00730.84
8.1.280.0100.00725.92
8.1.270.0000.00924.66
8.1.260.0000.00926.35
8.1.250.0040.00428.09
8.1.240.0110.00022.50
8.1.230.0030.01022.00
8.1.220.0100.00019.73
8.1.210.0030.00620.09
8.1.200.0030.00618.35
8.1.190.0040.00718.35
8.1.180.0050.00518.36
8.1.170.0070.00319.65
8.1.160.0000.01219.91
8.1.150.0000.00919.94
8.1.140.0000.00919.85
8.1.130.0000.00821.08
8.1.120.0050.00518.62
8.1.110.0000.01018.51
8.1.100.0040.00418.59
8.1.90.0000.00918.61
8.1.80.0040.01218.66
8.1.70.0000.00818.65
8.1.60.0000.01118.78
8.1.50.0040.00718.66
8.1.40.0030.00918.64
8.1.30.0030.00718.82
8.1.20.0070.00718.80
8.1.10.0080.00418.61
8.1.00.0000.01318.57
8.0.300.0040.00420.86
8.0.290.0040.00417.88
8.0.280.0050.00319.57
8.0.270.0000.00919.03
8.0.260.0000.00819.34
8.0.250.0000.00817.97
8.0.240.0070.00318.07
8.0.230.0030.00618.04
8.0.220.0030.00617.94
8.0.210.0000.01017.95
8.0.200.0040.00417.91
8.0.190.0040.00718.04
8.0.180.0050.00517.94
8.0.170.0040.00817.93
8.0.160.0040.00717.86
8.0.150.0030.00717.80
8.0.140.0000.01117.95
8.0.130.0000.00814.33
8.0.120.0000.01117.85
8.0.110.0070.00318.10
8.0.100.0030.00717.89
8.0.90.0030.00718.07
8.0.80.0050.01517.96
8.0.70.0040.00717.93
8.0.60.0070.00317.95
8.0.50.0000.01018.04
8.0.30.0140.00717.88
8.0.20.0060.01718.16
8.0.10.0070.00418.16
8.0.00.0160.01218.02
7.4.330.0030.00315.55
7.4.320.0040.00417.72
7.4.300.0030.00517.79
7.4.290.0070.00317.60
7.4.280.0030.00917.72
7.4.270.0000.01117.73
7.4.260.0030.00514.42
7.4.250.0030.00717.77
7.4.240.0070.00317.71
7.4.230.0040.00817.79
7.4.220.0110.00017.87
7.4.210.0100.01017.72
7.4.200.0000.01117.84
7.4.130.0140.01317.69
7.4.120.0150.00917.70
7.4.110.0100.01017.67
7.4.100.0160.00417.41
7.4.90.0070.01417.53
7.4.80.0120.00917.56
7.4.70.0090.01217.68
7.4.60.0080.02017.69
7.4.50.0000.02117.39
7.4.40.0140.00617.69
7.4.30.0180.00317.45
7.4.20.0080.01117.76
7.4.10.0070.02017.77
7.4.00.0060.01817.75
7.3.330.0030.00617.46
7.3.320.0030.00514.25
7.3.310.0030.00717.42
7.3.300.0100.00017.31
7.3.290.0110.00917.46
7.3.260.0130.00917.75
7.3.230.0030.01617.61
7.3.210.0080.01217.55
7.3.200.0150.00617.61
7.3.190.0080.01217.67
7.3.180.0200.00617.71
7.3.170.0060.01517.41
7.3.160.0140.01117.45
7.3.150.0100.01017.71
7.3.140.0160.01017.54
7.3.130.0130.01317.69
7.3.120.0130.00717.53
7.3.110.0110.01117.64
7.3.100.0140.00817.29
7.3.90.0120.00917.48
7.3.80.0100.01017.47
7.3.70.0130.01317.58
7.3.60.0120.00917.59
7.3.50.0080.02217.71
7.3.40.0070.01817.57
7.3.30.0110.01117.57
7.3.20.0510.01417.55
7.3.10.0190.01017.58
7.3.00.0140.01417.57
7.2.330.0160.00617.76
7.2.320.0150.01217.70
7.2.310.0160.00717.85
7.2.300.0130.00717.79
7.2.290.0070.01317.55
7.2.280.0100.01017.53
7.2.270.0070.01317.83
7.2.260.0110.01117.80
7.2.250.0160.00617.64
7.2.240.0140.00717.60
7.2.230.0220.00017.74
7.2.220.0190.00617.54
7.2.210.0120.01017.71
7.2.200.0090.01517.61
7.2.190.0130.01017.71
7.2.180.0060.01817.54
7.2.170.0140.01417.63
7.2.160.0180.00617.87
7.2.150.0090.02017.65
7.2.140.0160.01317.68
7.2.130.0270.01717.83
7.2.120.0090.01417.72
7.2.110.0150.00717.65
7.2.100.0030.02117.75
7.2.90.0090.01717.85
7.2.80.0140.01317.72
7.2.70.0100.01017.68
7.2.60.0120.00917.78
7.2.50.0110.00917.70
7.2.40.0180.00517.65
7.2.30.0670.01917.61
7.2.20.0090.01217.56
7.2.10.0060.01517.77
7.2.00.0090.01717.71
7.1.330.0180.01616.68

preferences:
103.46 ms | 1493 KiB | 5 Q