3v4l.org

run code in 300+ PHP versions simultaneously
<?php function outputListItems($char) { static $index = array('A' => 1); if (!isset($index[$char])) { $index[$char] = 1; } for ($i = 0; $i < 3; $i++) { echo '<li>'; echo $char; echo $index[$char]++; echo '<ul>'; outputListItems($char++); echo '</ul>'; echo '</li>'; } } ?> <ul> <li> A1 <ul><?php outputListItems('B'); ?></ul> </li> </ul>

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)
8.3.60.0540.01018.74
8.3.50.0700.00919.40
8.3.40.0690.01020.96
8.3.30.0360.01019.92
8.3.20.0250.01020.63
8.3.10.0300.01520.94
8.3.00.0230.00019.25
8.2.180.0330.01017.88
8.2.170.0420.01622.96
8.2.160.0270.01719.96
8.2.150.0180.00724.18
8.2.140.0150.00824.66
8.2.130.0160.00626.16
8.2.120.0300.00721.95
8.2.110.0340.01024.20
8.2.100.0140.01718.98
8.2.90.0170.00721.34
8.2.80.0140.00719.75
8.2.70.0100.00618.75
8.2.60.0170.00719.63
8.2.50.0140.00719.91
8.2.40.0120.00921.22
8.2.30.0120.01520.12
8.2.20.0180.00919.82
8.2.10.0040.01119.00
8.2.00.0140.01020.03
8.1.280.0530.01125.92
8.1.270.0340.00624.44
8.1.260.0310.00326.35
8.1.250.0210.01428.09
8.1.240.0350.01024.52
8.1.230.0340.01721.14
8.1.220.0140.01420.02
8.1.210.0230.00019.48
8.1.200.0120.00618.98
8.1.190.0170.00719.23
8.1.180.0150.00819.60
8.1.170.0100.01019.60
8.1.160.0130.01021.35
8.1.150.0090.00619.71
8.1.140.0180.00419.86
8.1.130.0170.00421.21
8.1.120.0220.00419.81
8.1.110.0100.00318.79
8.1.100.0190.00619.77
8.1.90.0170.00719.63
8.1.80.0100.01019.66
8.1.70.0110.01119.73
8.1.60.0160.00819.91
8.1.50.0110.01119.79
8.1.40.0190.00018.88
8.1.30.0200.01119.88
8.1.20.0270.00019.87
8.1.10.0150.00919.84
8.1.00.0080.01919.84
8.0.300.0150.00919.15
8.0.290.0180.00418.88
8.0.280.0110.00419.71
8.0.270.0100.01319.43
8.0.260.0190.00819.00
8.0.250.0110.01119.17
8.0.240.0140.00719.06
8.0.230.0110.01118.94
8.0.220.0110.01118.96
8.0.210.0150.00619.07
8.0.200.0080.00417.93
8.0.190.0120.00919.17
8.0.180.0140.01819.00
8.0.170.0290.00018.95
8.0.160.0150.00719.05
8.0.150.0160.00317.95
8.0.140.0140.00418.13
8.0.130.0150.00815.55
8.0.120.0130.01318.86
8.0.110.0110.01519.04
8.0.100.0060.00918.30
8.0.90.0150.00418.99
8.0.80.0340.04118.95
8.0.70.0100.00718.24
8.0.60.0120.00919.10
8.0.50.0040.00817.50
8.0.30.0750.03619.17
8.0.20.0540.03818.68
8.0.10.0170.00419.22
8.0.00.0660.03418.18
7.4.330.0070.01115.21
7.4.320.0170.00718.53
7.4.300.0120.00317.66
7.4.290.0110.01118.71
7.4.280.0150.00617.69
7.4.270.0170.00318.72
7.4.260.0090.00614.51
7.4.250.0100.01017.58
7.4.240.0160.01018.68
7.4.230.0330.02218.52
7.4.220.0500.04118.61
7.4.210.0280.04918.67
7.4.200.0080.01218.74
7.4.190.0100.00718.14
7.4.160.0800.02918.59
7.4.150.0650.04518.63
7.4.140.0710.01417.26
7.4.130.0690.05418.27
7.4.120.0440.02717.71
7.4.110.0800.04518.60
7.4.100.0820.04518.79
7.4.90.0750.05318.65
7.4.80.0790.07219.39
7.4.70.0500.03618.47
7.4.60.0460.03918.22
7.4.50.0150.00418.44
7.4.40.0210.01717.92
7.4.30.0800.06718.80
7.4.00.0230.02316.89
7.3.330.0180.00915.47
7.3.320.0220.00615.39
7.3.310.0190.00318.52
7.3.300.0000.01918.52
7.3.290.0390.04318.50
7.3.280.0370.04018.25
7.3.270.0760.04718.41
7.3.260.0790.05218.86
7.3.250.1040.04518.61
7.3.240.0810.05118.30
7.3.230.0890.04418.57
7.3.210.0950.04618.42
7.3.200.0770.05518.80
7.3.190.0490.04517.79
7.3.180.0360.05318.78
7.3.170.0540.04118.15
7.3.160.0740.03618.56
7.3.120.0250.01416.39
7.3.10.0350.01718.34
7.3.00.0300.01018.72
7.2.330.0820.04318.97
7.2.320.0610.04218.79
7.2.310.0460.05318.82
7.2.300.0580.04818.92
7.2.290.0300.02717.88
7.2.130.0330.01318.68
7.2.120.0340.01718.51
7.2.110.0240.00316.40
7.2.100.0280.00616.32
7.2.90.0410.01218.75
7.2.80.0360.01418.52
7.2.70.0210.00916.71
7.2.60.0350.01218.64
7.2.50.0270.00316.87
7.2.40.0470.01318.67
7.2.30.0450.02018.77
7.2.20.0440.01418.69
7.2.10.0430.01818.50
7.2.00.0230.01219.02
7.1.250.0380.01017.73
7.1.200.0170.01015.77
7.1.70.0120.00319.19
7.1.60.0360.01619.44
7.1.50.0400.02018.80
7.0.200.0190.00618.90

preferences:
39.73 ms | 401 KiB | 5 Q