3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/^#{1,6}\s*(.+)\s*$/', '# Hello') === 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)
8.3.40.0070.00718.98
8.3.30.0070.00718.95
8.3.20.0070.00020.34
8.3.10.0080.00021.98
8.3.00.0040.00420.68
8.2.170.0120.00322.96
8.2.160.0040.01119.04
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0090.00026.16
8.2.120.0040.00419.61
8.2.110.0030.00622.05
8.2.100.0080.00419.76
8.2.90.0040.00419.00
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0040.00417.92
8.2.50.0080.00018.07
8.2.40.0100.00018.02
8.2.30.0070.00317.95
8.2.20.0040.00417.61
8.2.10.0040.00417.76
8.2.00.0000.00817.70
8.1.270.0060.00322.02
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0090.00023.84
8.1.230.0080.00319.10
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0090.00017.35
8.1.190.0000.00817.40
8.1.180.0000.00718.52
8.1.170.0000.00818.58
8.1.160.0030.00322.10
8.1.150.0040.00418.65
8.1.140.0000.00717.35
8.1.130.0000.00717.83
8.1.120.0000.00717.39
8.1.110.0040.00417.38
8.1.100.0040.00417.39
8.1.90.0030.00517.48
8.1.80.0050.00317.38
8.1.70.0070.00017.43
8.1.60.0030.00617.63
8.1.50.0040.00417.53
8.1.40.0040.00417.54
8.1.30.0040.00417.65
8.1.20.0050.00317.66
8.1.10.0080.00017.50
8.1.00.0070.00017.55
8.0.300.0000.00718.77
8.0.290.0040.00416.93
8.0.280.0000.00718.34
8.0.270.0050.00217.06
8.0.260.0030.00316.78
8.0.250.0000.00716.98
8.0.240.0050.00316.98
8.0.230.0030.00316.96
8.0.220.0000.00716.92
8.0.210.0000.00716.88
8.0.200.0030.00316.98
8.0.190.0040.00416.93
8.0.180.0050.00216.81
8.0.170.0040.00416.83
8.0.160.0000.00716.82
8.0.150.0000.00716.90
8.0.140.0040.00416.86
8.0.130.0000.00613.30
8.0.120.0040.00416.89
8.0.110.0040.00416.93
8.0.100.0040.00416.80
8.0.90.0040.00416.80
8.0.80.0090.01316.88
8.0.70.0000.00716.86
8.0.60.0040.00416.97
8.0.50.0040.00416.87
8.0.30.0120.00917.20
8.0.20.0150.01117.40
8.0.10.0050.00316.94
8.0.00.0100.01016.78
7.4.330.0050.00015.03
7.4.320.0000.00716.76
7.4.300.0030.00316.75
7.4.290.0000.00716.73
7.4.280.0070.00016.64
7.4.270.0000.00916.75
7.4.260.0000.00716.63
7.4.250.0050.00316.63
7.4.240.0020.00516.60
7.4.230.0070.00016.67
7.4.220.0160.00416.66
7.4.210.0070.00916.76
7.4.200.0000.00716.50
7.4.190.0070.00016.90
7.4.160.0040.01216.67
7.4.150.0070.01017.40
7.4.140.0040.01317.86
7.4.130.0080.01016.60
7.4.120.0120.00816.60
7.4.110.0110.00716.63
7.4.100.0150.00316.61
7.4.90.0100.01016.71
7.4.80.0100.00719.39
7.4.70.0070.01316.59
7.4.60.0130.00416.77
7.4.50.0060.00016.37
7.4.40.0030.00922.77
7.4.30.0090.01216.58
7.4.10.0070.00715.13
7.4.00.0110.00615.06
7.3.330.0000.00613.07
7.3.320.0000.00513.28
7.3.310.0000.00716.44
7.3.300.0000.00716.37
7.3.290.0060.00916.39
7.3.280.0110.00516.32
7.3.270.0060.01017.40
7.3.260.0130.00316.59
7.3.250.0060.01116.40
7.3.240.0110.00616.45
7.3.230.0060.01116.39
7.3.210.0060.01016.37
7.3.200.0060.00916.41
7.3.190.0060.01216.67
7.3.180.0040.01116.39
7.3.170.0060.01016.45
7.3.160.0040.01216.71
7.3.130.0060.00614.86
7.3.120.0060.01314.97
7.3.110.0140.00314.82
7.3.100.0070.00714.66
7.3.90.0040.00715.09
7.3.80.0150.00015.13
7.3.70.0030.00714.60
7.3.60.0060.01014.88
7.3.50.0030.01314.97
7.3.40.0120.00314.96
7.3.30.0070.01114.82
7.3.20.0140.00016.77
7.3.10.0000.01116.80
7.3.00.0030.01216.78
7.2.330.0050.01116.66
7.2.320.0090.00816.66
7.2.310.0030.01916.71
7.2.300.0090.00916.74
7.2.290.0120.00316.73
7.2.260.0000.02115.06
7.2.250.0060.01315.13
7.2.240.0060.00914.80
7.2.230.0090.00615.13
7.2.220.0030.01015.01
7.2.210.0070.01015.02
7.2.200.0100.00714.98
7.2.190.0130.00014.77
7.2.180.0070.01015.15
7.2.170.0060.01115.07
7.2.160.0100.00715.10
7.2.150.0050.00517.04
7.2.140.0060.00316.97
7.2.130.0110.00617.11
7.2.120.0090.00616.83
7.2.110.0090.00316.93
7.2.100.0070.01116.95
7.2.90.0080.00316.85
7.2.80.0090.00917.17
7.2.70.0150.00016.96
7.2.60.0040.00417.04
7.2.50.0100.00017.00
7.2.40.0000.01617.09
7.2.30.0030.01017.08
7.2.20.0070.01017.02
7.2.10.0060.00917.00
7.2.00.0070.00718.20
7.1.330.0030.01516.08
7.1.320.0000.01415.96
7.1.310.0040.00816.02
7.1.300.0000.01415.71
7.1.290.0080.00315.88
7.1.280.0030.01615.96
7.1.270.0060.00916.03
7.1.260.0000.01515.95
7.1.250.0150.00015.80
7.1.240.0000.01415.95
7.1.230.0000.00815.84
7.1.220.0000.01315.84
7.1.210.0070.00716.04
7.1.200.0060.01115.73
7.1.190.0100.00316.05
7.1.180.0030.00715.76
7.1.170.0060.00816.05
7.1.160.0080.00415.96
7.1.150.0100.00315.75
7.1.140.0080.00615.77
7.1.130.0060.01215.85
7.1.120.0030.01015.81
7.1.110.0070.01016.09
7.1.100.0060.00717.04
7.1.90.0040.01215.96
7.1.80.0060.00315.65
7.1.70.0020.01116.59
7.1.60.0050.01317.85
7.1.50.0050.01116.59
7.1.40.0030.01015.71
7.1.30.0060.00615.98
7.1.20.0070.00715.81
7.1.10.0030.00816.05
7.1.00.0080.03619.18
7.0.330.0040.00715.59
7.0.320.0030.00615.18
7.0.310.0040.00415.45
7.0.300.0070.00715.71
7.0.290.0100.00615.32
7.0.280.0070.00715.05
7.0.270.0140.00315.50
7.0.260.0030.00915.34
7.0.250.0030.01315.67
7.0.240.0070.00715.60
7.0.230.0030.00915.38
7.0.220.0040.00415.38
7.0.210.0000.01715.52
7.0.200.0080.00516.09
7.0.190.0070.00415.73
7.0.180.0040.01115.54
7.0.170.0080.00015.48
7.0.160.0030.01015.16
7.0.150.0060.00615.50
7.0.140.0090.03618.65
7.0.130.0080.00515.53
7.0.120.0090.00615.81
7.0.110.0050.00515.58
7.0.100.0080.02617.81
7.0.90.0060.04717.65
7.0.80.0060.04617.61
7.0.70.0020.03617.69
7.0.60.0020.04917.67
7.0.50.0100.03917.84
7.0.40.0090.04416.73
7.0.30.0100.04316.79
7.0.20.0070.04116.88
7.0.10.0080.04216.77
7.0.00.0080.04516.88
5.6.400.0040.01114.07
5.6.390.0040.00714.03
5.6.380.0000.00814.02
5.6.370.0040.01114.63
5.6.360.0070.01014.36
5.6.350.0100.00614.50
5.6.340.0060.00914.41
5.6.330.0120.00314.43
5.6.320.0030.01014.30
5.6.310.0090.00614.37
5.6.300.0070.00714.00
5.6.290.0100.00313.98
5.6.280.0060.03817.57
5.6.270.0030.00814.46
5.6.260.0110.00314.32
5.6.250.0120.02317.50
5.6.240.0100.04017.40
5.6.230.0080.02617.46
5.6.220.0050.04717.48
5.6.210.0030.03517.35
5.6.200.0120.03817.64
5.6.190.0070.04217.75
5.6.180.0050.04617.71
5.6.170.0070.04517.79
5.6.160.0150.03517.54
5.6.150.0080.04417.75
5.6.140.0100.03317.64
5.6.130.0080.02817.59
5.6.120.0050.04817.61
5.6.110.0070.04117.61
5.6.100.0050.04417.61
5.6.90.0030.04217.71
5.6.80.0050.03217.36
5.6.70.0060.02117.22
5.6.60.0070.02217.19
5.6.50.0030.02917.20
5.6.40.0050.02717.18
5.6.30.0030.02517.24
5.6.20.0050.02517.28
5.6.10.0040.02717.17
5.6.00.0030.04417.24
5.5.380.0080.04117.28
5.5.370.0100.04017.24
5.5.360.0010.05417.40
5.5.350.0000.04117.26
5.5.340.0050.04717.57
5.5.330.0130.03817.56
5.5.320.0070.04217.43
5.5.310.0050.03717.63
5.5.300.0080.04317.46
5.5.290.0070.04517.44
5.5.280.0060.04317.58
5.5.270.0050.02717.70
5.5.260.0070.04317.62
5.5.250.0030.04817.26
5.5.240.0040.02717.03
5.5.230.0060.02017.10
5.5.220.0030.02416.93
5.5.210.0050.03117.15
5.5.200.0030.02417.27
5.5.190.0080.03717.20
5.5.180.0030.02217.08
5.5.170.0070.01014.16
5.5.160.0090.02317.25
5.5.150.0030.04517.24
5.5.140.0050.03717.07
5.5.130.0080.03017.25
5.5.120.0030.03317.17
5.5.110.0040.02617.17
5.5.100.0050.02817.13
5.5.90.0080.03017.18
5.5.80.0030.02817.05
5.5.70.0050.04317.07
5.5.60.0080.03017.15
5.5.50.0030.02517.20
5.5.40.0070.02717.06
5.5.30.0070.02517.09
5.5.20.0060.02516.95
5.5.10.0050.02317.11
5.5.00.0050.04117.07
5.4.450.0070.03316.09
5.4.440.0020.04716.12
5.4.430.0060.04116.04
5.4.420.0020.03515.93
5.4.410.0070.03815.94
5.4.400.0050.03715.85
5.4.390.0050.02115.86
5.4.380.0050.02315.76
5.4.370.0010.02215.75
5.4.360.0070.02215.91
5.4.350.0090.01715.93
5.4.340.0040.02115.80
5.4.330.0040.00712.72
5.4.320.0050.03815.93
5.4.310.0030.02915.92
5.4.300.0030.02315.93
5.4.290.0000.04515.92
5.4.280.0050.04215.92
5.4.270.0050.02915.87
5.4.260.0050.02815.88
5.4.250.0030.02515.89
5.4.240.0120.03015.85
5.4.230.0020.02915.92
5.4.220.0020.03715.81
5.4.210.0050.02415.87
5.4.200.0020.02415.91
5.4.190.0050.02015.88
5.4.180.0060.02015.91
5.4.170.0060.01815.90
5.4.160.0070.02215.96
5.4.150.0020.02515.93
5.4.140.0050.02514.55
5.4.130.0030.02014.49
5.4.120.0030.02014.38
5.4.110.0090.01514.47
5.4.100.0050.02314.47
5.4.90.0070.01814.55
5.4.80.0050.02014.53
5.4.70.0070.02414.50
5.4.60.0030.02314.50
5.4.50.0050.02414.45
5.4.40.0040.02814.48
5.4.30.0060.03314.51
5.4.20.0030.03414.54
5.4.10.0070.03714.51
5.4.00.0030.03914.22
5.3.290.0050.03713.68
5.3.280.0070.03513.63
5.3.270.0060.02413.64
5.3.260.0010.02513.59
5.3.250.0040.02013.66
5.3.240.0050.02813.64
5.3.230.0080.02113.66
5.3.220.0000.02613.55
5.3.210.0050.02213.64
5.3.200.0070.01513.55
5.3.190.0060.04113.55
5.3.180.0020.02413.64
5.3.170.0030.02913.54
5.3.160.0050.01713.62
5.3.150.0020.03513.62
5.3.140.0080.02513.57
5.3.130.0030.02013.63
5.3.120.0020.02013.56
5.3.110.0100.03513.61
5.3.100.0060.03513.30
5.3.90.0030.04113.36
5.3.80.0020.03013.36
5.3.70.0070.03813.34
5.3.60.0090.02513.29
5.3.50.0060.03613.26
5.3.40.0060.03413.31
5.3.30.0060.02113.31
5.3.20.0030.04013.18
5.3.10.0050.03513.15
5.3.00.0050.04013.16
5.2.170.0030.05711.22
5.2.160.0070.06011.14
5.2.150.0100.02711.19
5.2.140.0070.06710.93
5.2.130.0070.04011.04
5.2.120.0030.06311.09
5.2.110.0070.03710.96
5.2.100.0030.05010.95
5.2.90.0000.07011.16
5.2.80.0030.06311.08
5.2.70.0030.06310.94
5.2.60.0070.06311.09
5.2.50.0000.06710.83
5.2.40.0130.05310.79
5.2.30.0030.06010.96
5.2.20.0100.05310.96
5.2.10.0030.06310.87
5.2.00.0000.06710.77
5.1.60.0070.05010.02
5.1.50.0070.04310.04
5.1.40.0070.0479.98
5.1.30.0100.05010.25
5.1.20.0070.05010.36
5.1.10.0070.02710.10
5.1.00.0100.0479.91
5.0.50.0030.0478.59
5.0.40.0100.0378.45
5.0.30.0000.0638.27
5.0.20.0000.0478.27
5.0.10.0030.0338.27
5.0.00.0000.0708.27
4.4.90.0000.0408.27
4.4.80.0030.0378.27
4.4.70.0000.0408.27
4.4.60.0000.0408.27
4.4.50.0030.0378.27
4.4.40.0030.0478.27
4.4.30.0030.0378.27
4.4.20.0000.0378.27
4.4.10.0100.0278.27
4.4.00.0000.0478.27
4.3.110.0030.0308.27
4.3.100.0030.0338.27
4.3.90.0030.0338.27
4.3.80.0100.0508.27
4.3.70.0070.0278.27
4.3.60.0000.0378.27
4.3.50.0000.0378.27
4.3.40.0000.0508.27
4.3.30.0000.0408.27
4.3.20.0000.0278.27
4.3.10.0000.0408.27
4.3.00.0030.0278.27

preferences:
44.13 ms | 400 KiB | 5 Q