3v4l.org

run code in 300+ PHP versions simultaneously
<?php $content = <<<CONTENT a @tag CONTENT; $matches = array(); var_dump(preg_match('/^a/', $content, $matches, 0, 0) === 1); var_dump(preg_match('/^(\A|\n)\w*@/', $content, $matches, 0, 1) === 1);

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)
8.3.60.0070.00718.56
8.3.50.0130.00722.12
8.3.40.0070.01118.92
8.3.30.0040.01118.96
8.3.20.0040.00420.25
8.3.10.0000.00820.69
8.3.00.0050.00319.63
8.2.180.0130.00316.63
8.2.170.0120.00422.96
8.2.160.0110.00420.45
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00322.36
8.2.110.0040.00422.08
8.2.100.0070.00420.26
8.2.90.0000.00819.09
8.2.80.0030.00517.97
8.2.70.0060.00317.60
8.2.60.0080.00417.65
8.2.50.0050.00318.07
8.2.40.0060.00318.09
8.2.30.0050.00219.18
8.2.20.0050.00217.74
8.2.10.0050.00318.06
8.2.00.0000.00717.81
8.1.280.0120.00325.92
8.1.270.0050.00324.01
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0030.01721.98
8.1.230.0060.00619.01
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0090.00318.71
8.1.160.0030.00621.96
8.1.150.0020.00518.73
8.1.140.0070.00017.45
8.1.130.0030.00317.80
8.1.120.0040.00417.43
8.1.110.0030.00617.45
8.1.100.0080.00017.57
8.1.90.0000.00717.43
8.1.80.0030.00617.47
8.1.70.0030.00317.45
8.1.60.0040.00417.69
8.1.50.0050.00317.63
8.1.40.0050.00317.55
8.1.30.0030.00517.61
8.1.20.0080.00017.63
8.1.10.0000.00817.54
8.1.00.0060.00317.42
8.0.300.0020.00518.77
8.0.290.0070.00016.75
8.0.280.0030.00318.40
8.0.270.0070.00017.08
8.0.260.0000.00617.20
8.0.250.0030.00317.09
8.0.240.0060.00017.13
8.0.230.0000.00717.09
8.0.220.0070.00017.00
8.0.210.0000.00817.02
8.0.200.0040.00416.95
8.0.190.0000.00717.00
8.0.180.0000.00816.92
8.0.170.0000.00717.07
8.0.160.0080.00016.94
8.0.150.0040.00416.93
8.0.140.0030.00316.93
8.0.130.0030.00313.52
8.0.120.0050.00216.87
8.0.110.0050.00317.02
8.0.100.0040.00416.91
8.0.90.0000.00716.97
8.0.80.0090.01216.95
8.0.70.0040.00416.80
8.0.60.0050.00316.91
8.0.50.0080.00016.96
8.0.30.0140.00617.21
8.0.20.0130.00817.52
8.0.10.0020.00517.18
8.0.00.0040.01316.86
7.4.330.0030.00315.17
7.4.320.0000.00616.60
7.4.300.0030.00316.70
7.4.290.0080.00016.67
7.4.280.0060.00316.70
7.4.270.0030.00316.80
7.4.260.0070.00016.60
7.4.250.0040.00416.76
7.4.240.0050.00316.71
7.4.230.0040.00416.69
7.4.220.0090.00916.74
7.4.210.0000.01416.66
7.4.200.0000.00716.84
7.4.160.0070.01316.66
7.4.150.0120.00917.40
7.4.140.0070.01017.86
7.4.130.0100.01016.85
7.4.120.0120.00516.62
7.4.110.0160.00016.59
7.4.100.0190.00316.46
7.4.90.0090.01316.58
7.4.80.0070.01016.54
7.4.70.0130.00616.69
7.4.60.0000.01716.66
7.4.50.0030.00516.66
7.4.40.0050.01016.54
7.4.30.0060.01316.64
7.4.00.0030.01415.15
7.3.330.0000.00613.20
7.3.320.0000.00513.27
7.3.310.0000.00716.21
7.3.300.0000.00716.31
7.3.290.0030.01016.36
7.3.280.0100.00916.37
7.3.270.0130.00517.40
7.3.260.0160.00316.62
7.3.250.0120.00416.58
7.3.240.0030.01616.44
7.3.230.0070.01016.39
7.3.210.0120.00616.32
7.3.200.0100.00719.39
7.3.190.0160.00616.54
7.3.180.0100.00716.42
7.3.170.0060.01016.36
7.3.160.0080.00816.73
7.3.10.0030.00916.62
7.3.00.0090.00616.65
7.2.330.0070.01116.75
7.2.320.0140.01016.66
7.2.310.0070.01116.48
7.2.300.0090.01216.55
7.2.290.0030.01416.64
7.2.130.0060.00617.14
7.2.120.0090.00316.91
7.2.110.0090.00616.98
7.2.100.0030.00716.83
7.2.90.0100.00717.17
7.2.80.0000.01316.93
7.2.70.0100.00717.00
7.2.60.0140.00016.94
7.2.50.0070.00417.11
7.2.40.0000.01717.03
7.2.30.0030.00916.94
7.2.20.0070.00716.91
7.2.10.0030.00716.95
7.2.00.0030.00918.10
7.1.250.0030.00915.73
7.1.100.0170.00318.22
7.1.70.0030.00917.14
7.1.60.0130.01319.32
7.1.50.0000.01817.05
7.1.00.0000.07322.29
7.0.200.0040.00416.88
7.0.140.0030.07322.08
7.0.60.0030.09020.00
7.0.50.0070.08317.88
7.0.40.0030.05320.26
7.0.30.0470.05020.21
7.0.20.0270.08020.03
7.0.10.0070.06720.09
7.0.00.0070.05020.21
5.6.280.0030.07321.14
5.6.210.0070.07720.75
5.6.200.0070.07718.11
5.6.190.0100.05020.67
5.6.180.0570.06720.43
5.6.170.0430.07020.41
5.6.160.0030.08320.48
5.6.150.0030.03718.08
5.6.140.0100.08718.11
5.6.130.0100.08718.07
5.6.120.0130.08020.78
5.6.110.0100.07721.01
5.6.100.0070.05721.00
5.6.90.0070.08721.07
5.6.80.0030.08320.28
5.5.350.0200.07720.46
5.5.340.0130.07317.91
5.5.330.0030.09020.41
5.5.320.0330.07720.30
5.5.310.0130.04320.23
5.5.300.0070.05718.01
5.5.290.0070.08317.99
5.5.280.0200.07320.73
5.5.270.0100.08320.88
5.5.260.0170.07020.72
5.5.250.0130.07320.69
5.5.240.2230.03720.26
5.4.450.0230.05719.61
5.4.440.0930.05719.24
5.4.430.0430.05319.63
5.4.420.0730.08719.31
5.4.410.0870.05719.11
5.4.400.0670.05719.19
5.4.390.0130.05019.12
5.4.380.0570.06318.61
5.4.370.0430.05718.69
5.4.360.0430.04318.61
5.4.350.0230.07018.72
5.4.340.0500.05018.50
5.4.320.0050.03712.45
5.4.310.0070.04112.45
5.4.300.0070.03712.46
5.4.290.0040.03812.45
5.4.280.0040.03612.34
5.4.270.0070.03412.35
5.4.260.0040.03912.34
5.4.250.0070.03512.35
5.4.240.0070.03412.34
5.4.230.0040.03912.34
5.4.220.0070.03412.34
5.4.210.0050.03612.34
5.4.200.0100.03612.34
5.4.190.0080.03412.34
5.4.180.0080.03812.34
5.4.170.0100.04312.35
5.4.160.0090.03312.34
5.4.150.0060.03712.34
5.4.140.0060.03712.02
5.4.130.0070.03412.01
5.4.120.0060.03911.97
5.4.110.0060.03911.96
5.4.100.0070.03311.96
5.4.90.0060.03711.96
5.4.80.0060.03711.96
5.4.70.0060.03411.96
5.4.60.0040.03611.96
5.4.50.0090.03711.96
5.4.40.0040.03911.95
5.4.30.0020.03911.95
5.4.20.0090.03111.95
5.4.10.0040.03711.95
5.4.00.0040.03811.44
5.3.290.0060.04212.80
5.3.280.0060.03812.71
5.3.270.0060.03912.72
5.3.260.0110.03312.72
5.3.250.0090.04112.71
5.3.240.0060.03612.72
5.3.230.0070.03912.71
5.3.220.0040.03912.68
5.3.210.0070.04212.68
5.3.200.0070.03412.68
5.3.190.0130.02912.68
5.3.180.0070.04112.67
5.3.170.0100.03612.67
5.3.160.0070.03412.67
5.3.150.0050.03712.68
5.3.140.0040.03812.66
5.3.130.0040.03912.66
5.3.120.0050.03812.66
5.3.110.0060.03712.66
5.3.100.0150.03312.12
5.3.90.0070.03512.08
5.3.80.0040.03712.07
5.3.70.0070.04212.07
5.3.60.0080.03912.07
5.3.50.0040.03712.00
5.3.40.0050.03612.00
5.3.30.0060.03411.95
5.3.20.0040.03611.73
5.3.10.0050.03511.70
5.3.00.0060.03511.69
5.2.170.0060.0289.19
5.2.160.0050.0369.19
5.2.150.0040.0309.19
5.2.140.0030.0319.18
5.2.130.0070.0359.14
5.2.120.0050.0319.14
5.2.110.0070.0289.15
5.2.100.0060.0289.15
5.2.90.0040.0319.14
5.2.80.0050.0299.15
5.2.70.0070.0289.14
5.2.60.0050.0309.10
5.2.50.0040.0309.07
5.2.40.0060.0289.05
5.2.30.0040.0309.03
5.2.20.0040.0299.01
5.2.10.0070.0268.92
5.2.00.0070.0278.77
5.1.60.0020.0268.06
5.1.50.0070.0228.05
5.1.40.0040.0248.04
5.1.30.0020.0358.39
5.1.20.0070.0308.41
5.1.10.0050.0258.14
5.1.00.0060.0248.14
5.0.50.0040.0226.61
5.0.40.0060.0236.48
5.0.30.0030.0326.29
5.0.20.0060.0246.26
5.0.10.0030.0276.23
5.0.00.0010.0326.23
4.4.90.0010.0164.78
4.4.80.0050.0124.76
4.4.70.0040.0144.75
4.4.60.0010.0174.76
4.4.50.0030.0154.77
4.4.40.0060.0304.71
4.4.30.0060.0134.76
4.4.20.0030.0224.85
4.4.10.0040.0194.85
4.4.00.0060.0214.76
4.3.110.0020.0164.67
4.3.100.0040.0144.66
4.3.90.0020.0204.63
4.3.80.0060.0254.59
4.3.70.0030.0194.63
4.3.60.0030.0194.63
4.3.50.0020.0204.62
4.3.40.0030.0264.54
4.3.30.0060.0273.28
4.3.20.0010.0223.26
4.3.10.0030.0163.21
4.3.00.0070.0176.86

preferences:
39.99 ms | 401 KiB | 5 Q