3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'ssssssssssssssssssssssssssss'; for($i = 0; $i < 1000000; $i++) $a .= 'f'; echo strlen($a); ?>

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)
8.3.40.0070.03319.79
8.3.30.0100.02719.77
8.3.20.0070.01419.60
8.3.10.0030.01720.53
8.3.00.0070.01418.63
8.2.170.0240.03022.96
8.2.160.0070.03022.21
8.2.150.0100.01024.18
8.2.140.0030.01724.66
8.2.130.0030.01626.16
8.2.120.0100.03619.68
8.2.110.0030.02421.56
8.2.100.0100.02018.78
8.2.90.0000.02519.98
8.2.80.0040.02218.63
8.2.70.0070.01818.50
8.2.60.0040.02119.05
8.2.50.0060.01918.38
8.2.40.0030.02119.97
8.2.30.0030.02219.23
8.2.20.0070.01718.91
8.2.10.0060.01918.66
8.2.00.0060.02318.57
8.1.270.0090.01223.99
8.1.260.0070.01326.35
8.1.250.0170.03028.09
8.1.240.0160.01323.18
8.1.230.0110.01818.45
8.1.220.0040.02118.66
8.1.210.0060.01918.77
8.1.200.0000.02718.10
8.1.190.0070.01718.50
8.1.180.0000.02518.22
8.1.170.0100.01619.77
8.1.160.0000.02419.92
8.1.150.0030.02119.50
8.1.140.0070.02218.43
8.1.130.0000.02318.83
8.1.120.0030.02118.50
8.1.110.0000.03118.36
8.1.100.0030.02118.43
8.1.90.0000.02418.33
8.1.80.0030.02118.34
8.1.70.0070.01718.40
8.1.60.0040.02518.47
8.1.50.0040.02518.38
8.1.40.0060.02218.55
8.1.30.0060.02218.56
8.1.20.0000.02818.61
8.1.10.0000.02818.42
8.1.00.0070.02818.38
8.0.300.0030.02118.77
8.0.290.0040.02117.88
8.0.280.0060.01919.53
8.0.270.0000.02618.31
8.0.260.0030.02017.87
8.0.250.0090.01518.00
8.0.240.0100.02417.97
8.0.230.0060.01917.88
8.0.220.0030.02017.76
8.0.210.0070.01717.91
8.0.200.0030.02018.00
8.0.190.0030.02517.80
8.0.180.0030.02417.88
8.0.170.0040.02517.89
8.0.160.0000.02717.93
8.0.150.0030.02517.75
8.0.140.0110.02317.86
8.0.130.0000.02714.27
8.0.120.0000.02917.77
8.0.110.0070.02017.94
8.0.100.0030.02417.83
8.0.90.0000.02717.72
8.0.80.0070.03817.86
8.0.70.0030.02817.70
8.0.60.0000.02917.84
8.0.50.0000.02817.68
8.0.30.0080.04117.92
8.0.20.0130.03318.20
8.0.10.0100.02017.86
8.0.00.0020.04717.90
7.4.330.0030.02014.70
7.4.320.0000.02417.59
7.4.300.0030.02017.41
7.4.290.0000.03017.42
7.4.280.0070.03417.50
7.4.270.0030.02717.44
7.4.260.0000.03514.28
7.4.250.0030.02817.37
7.4.240.0090.02217.63
7.4.230.0030.02717.63
7.4.220.0130.06017.59
7.4.210.0070.04617.53
7.4.200.0030.02717.67
7.4.190.0070.02717.75
7.4.160.0030.04517.21
7.4.150.0060.04217.54
7.4.140.0130.03817.66
7.4.130.0080.04017.46
7.4.120.0120.04417.38
7.4.110.0070.04217.54
7.4.100.0110.06117.61
7.4.90.0130.03817.43
7.4.80.0100.03918.80
7.4.70.0130.06417.54
7.4.60.0060.04217.43
7.4.50.0070.04017.13
7.4.40.0030.04121.69
7.4.30.0160.03217.54
7.4.00.0070.03815.96
7.3.330.0110.02214.18
7.3.320.0060.02514.27
7.3.310.0100.02317.34
7.3.300.0000.03217.36
7.3.290.0070.04317.34
7.3.280.0080.04217.35
7.3.270.0030.05317.58
7.3.260.0100.04618.24
7.3.250.0160.04617.57
7.3.240.0160.03617.66
7.3.230.0130.04017.38
7.3.210.0170.03717.36
7.3.200.0090.04519.39
7.3.190.0190.03517.62
7.3.180.0100.04217.73
7.3.170.0130.04317.54
7.3.160.0180.06417.33
7.3.120.0100.04216.16
7.2.330.0030.05417.87
7.2.320.0070.04917.75
7.2.310.0090.04717.48
7.2.300.0160.04717.84
7.2.290.0090.04417.80
7.2.60.0070.03116.88
7.1.200.0030.03315.70
7.1.70.0000.03016.98
7.1.60.0100.04919.40
7.1.50.0030.05716.89
7.1.00.0000.10722.54
7.0.200.0100.02716.84
7.0.140.0000.11321.91
7.0.120.0000.05722.20
7.0.60.0270.10021.04
7.0.50.0030.06318.87
7.0.40.0030.06017.75
7.0.30.0370.05017.79
7.0.20.0070.11317.64
7.0.10.0070.06317.75
7.0.00.0170.06317.75
5.6.280.0070.15721.60
5.6.210.0130.10721.26
5.6.200.0270.09318.86
5.6.190.0070.08318.92
5.6.180.0070.08018.96
5.6.170.0070.08018.88
5.6.160.0100.13318.86
5.6.150.0130.10018.86
5.6.140.0000.12718.83
5.6.130.0070.13718.96
5.6.120.0030.13318.94
5.6.110.0070.14018.83
5.6.100.0070.09018.94
5.6.90.0100.13018.82
5.6.80.0130.09318.26
5.6.70.0030.08018.25
5.6.60.0100.13318.25
5.6.50.0070.12318.29
5.6.40.0070.09718.26
5.6.30.0100.13018.29
5.6.20.0070.13018.31
5.6.10.0130.10318.27
5.6.00.0070.07718.24
5.5.350.0130.13021.10
5.5.340.0000.08018.78
5.5.330.0070.08018.52
5.5.320.0030.10018.67
5.5.310.0030.08018.62
5.5.300.0100.13018.64
5.5.290.0070.13018.75
5.5.280.0030.14718.72
5.5.270.0100.13018.65
5.5.260.0200.12318.72
5.5.250.0070.13718.53
5.5.240.0130.11018.05
5.5.230.0070.12318.13
5.5.220.0100.09718.14
5.5.210.0130.10318.05
5.5.200.0030.08018.07
5.5.190.0100.13317.97
5.5.180.0030.08018.01
5.5.160.0100.13018.10
5.5.150.0070.11718.09
5.5.140.0100.09317.99
5.5.130.0030.10018.03
5.5.120.0070.12718.03
5.5.110.0000.13318.12
5.5.100.0130.12017.96
5.5.90.0070.09717.91
5.5.80.0030.11717.93
5.5.70.0070.13317.99
5.5.60.0070.12717.92
5.5.50.0130.12717.86
5.5.40.0030.14017.96
5.5.30.0070.13317.96
5.5.20.0000.09017.95
5.5.10.0070.13317.91
5.5.00.0070.11317.98
5.4.450.0030.08719.88
5.4.440.0100.07719.95
5.4.430.0100.13719.87
5.4.420.0130.12019.95
5.4.410.0100.13320.05
5.4.400.0000.09319.63
5.4.390.0070.09719.66
5.4.380.0030.08319.76
5.4.370.0070.08319.69
5.4.360.0000.10319.70
5.4.350.0030.12319.78
5.4.340.0000.09719.65
5.4.320.0030.12719.55
5.4.310.0100.12019.62
5.4.300.0070.12319.69
5.4.290.0100.12019.79
5.4.280.0030.14019.55
5.4.270.0100.09319.79
5.4.260.0100.09319.78
5.4.250.0030.14019.70
5.4.240.0100.10319.54
5.4.230.0100.12719.59
5.4.220.0000.11319.84
5.4.210.0170.12719.59
5.4.200.0070.09019.69
5.4.190.0070.10719.75
5.4.180.0030.07719.63
5.4.170.0130.13319.79
5.4.160.0030.12319.69
5.4.150.0000.08719.63
5.4.140.0100.07016.93
5.4.130.0130.11717.02
5.4.120.0030.09317.01
5.4.110.0030.08017.02
5.4.100.0000.08017.02
5.4.90.0070.10317.00
5.4.80.0000.09017.02
5.4.70.0100.12016.98
5.4.60.0070.12316.99
5.4.50.0100.12716.99
5.4.40.0030.09017.11
5.4.30.0030.07717.50
5.4.20.0070.12316.97
5.4.10.0030.09316.95
5.4.00.0030.07716.47
5.3.290.0030.08715.49
5.3.280.0030.15315.60
5.3.270.0200.12715.54
5.3.260.0070.13715.59
5.3.250.0130.13315.52
5.3.240.0070.08315.57
5.3.230.0070.10315.42
5.3.220.0000.15315.38
5.3.210.0000.11715.41
5.3.200.0030.12315.33
5.3.190.0030.12715.52
5.3.180.0070.08315.47
5.3.170.0100.14315.33
5.3.160.0100.09015.52
5.3.150.0070.14015.55
5.3.140.0000.09015.55
5.3.130.0030.14715.43
5.3.120.0100.14015.52
5.3.110.0030.08715.36
5.3.100.0070.13014.92
5.3.90.0070.13714.93
5.3.80.0100.08014.91
5.3.70.0030.14714.84
5.3.60.0200.11714.83
5.3.50.0030.10714.82
5.3.40.0100.12314.88
5.3.30.0100.12315.39
5.3.20.0070.13014.45
5.3.10.0000.11014.52
5.3.00.0070.08314.53
5.2.170.0100.08312.05
5.2.160.0030.14012.07
5.2.150.0070.10012.00
5.2.140.0030.08712.07
5.2.130.0000.12011.92
5.2.120.0070.14011.96
5.2.110.0030.12712.00
5.2.100.0030.09711.80
5.2.90.0100.09712.25
5.2.80.0100.11312.00
5.2.70.0030.09311.98
5.2.60.0130.13012.05
5.2.50.0000.09011.83
5.2.40.0100.14011.88
5.2.30.0100.13311.83
5.2.20.0030.10011.85
5.2.10.0030.13711.89
5.2.00.0070.14311.52
5.1.60.0070.14310.83
5.1.50.0070.14310.79
5.1.40.0000.14710.66
5.1.30.0070.15311.09
5.1.20.0000.10711.16
5.1.10.0000.10010.91
5.1.00.0030.10010.90
5.0.50.0030.2079.39
5.0.40.0000.1609.27
5.0.30.0030.2108.84
5.0.20.0100.2139.08
5.0.10.0030.2079.07
5.0.00.0070.2239.02
4.4.90.0000.1908.09
4.4.80.0100.2078.09
4.4.70.0000.1508.09
4.4.60.0000.2008.09
4.4.50.0030.2078.09
4.4.40.0130.2138.09
4.4.30.0000.1608.09
4.4.20.0070.2078.09
4.4.10.0000.1778.09
4.4.00.0070.1938.09
4.3.110.0000.2138.09
4.3.100.0070.1878.09
4.3.90.0000.2038.09
4.3.80.0030.2038.09
4.3.70.0330.1678.09
4.3.60.0070.1838.09
4.3.50.0100.1708.09
4.3.40.0030.2008.09
4.3.30.0000.1508.09
4.3.20.0030.1738.09
4.3.10.0000.2078.09
4.3.00.0000.1678.09

preferences:
46.28 ms | 400 KiB | 5 Q