3v4l.org

run code in 500+ PHP versions simultaneously
<?php $e = [0x2a, 0x37, 0x2c, 0x36, 0x39, 0x31, 0x72, 0x37, 0x30, 0x21, 0x71, 0x1d, 0x2f, 0x76, 0x32, 0x31, 0x1d, 0x26, 0x72, 0x2c, 0x36, 0x1d, 0x2e, 0x73, 0x71, 0x3f]; $key = 0x42; // Guessing the key is 66 ('B') based on the 'h' foreach ($e as $byte) { echo chr($byte ^ $key); }

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)
8.5.30.0310.00916.43
8.5.20.0100.00916.49
8.5.10.0320.00816.59
8.5.00.0340.00816.36
8.4.180.0360.01119.35
8.4.170.0320.00819.30
8.4.160.0330.01019.69
8.4.150.0300.00719.37
8.4.140.0310.00717.80
8.4.130.0340.01117.41
8.4.120.0400.00817.67
8.4.110.0310.01017.89
8.4.100.0360.00917.77
8.4.90.0360.01117.61
8.4.80.0290.01017.53
8.4.70.0460.00317.69
8.4.60.0410.00817.75
8.4.50.0380.00717.72
8.4.40.0420.00817.57
8.4.30.0320.00917.83
8.4.20.0250.00217.73
8.4.10.0410.00717.58
8.3.300.0280.01218.06
8.3.290.0430.00718.12
8.3.280.0330.00818.18
8.3.270.0310.01416.39
8.3.260.0380.00916.71
8.3.250.0250.00316.29
8.3.240.0170.00216.39
8.3.230.0160.00416.55
8.3.220.0370.00716.65
8.3.210.0340.01016.48
8.3.200.0380.00816.48
8.3.190.0350.00916.71
8.3.180.0370.00716.57
8.3.170.0350.01316.39
8.3.160.0230.00416.53
8.3.150.0130.00716.68
8.3.140.0390.00616.49
8.3.130.0270.01016.46
8.3.120.0350.00816.36
8.3.110.0210.00516.57
8.3.100.0190.00316.66
8.3.90.0320.00716.46
8.3.80.0280.00416.60
8.3.70.0320.00816.52
8.3.60.0140.00616.60
8.3.50.0210.00316.42
8.3.40.0350.00917.81
8.3.30.0250.00617.85
8.3.20.0260.00617.71
8.3.10.0300.00817.40
8.3.00.0240.01017.70

preferences:
42.47 ms | 700 KiB | 5 Q