3v4l.org

run code in 300+ PHP versions simultaneously
<?php $nibble1 = hexdec('3'); $nibble2 = hexdec('a'); // nibble1 xnor nibble2 $r = ~($nibble1 ^ $nibble2) & 0x0F; echo dechex($r); // '6'

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)
8.3.60.0070.00718.43
8.3.50.0090.00916.47
8.3.40.0140.00718.89
8.3.30.0110.00418.42
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0000.00726.16
8.2.180.0110.00725.92
8.2.170.0150.00318.96
8.2.160.0040.01122.96
8.2.150.0070.00025.66
8.2.140.0090.00624.66
8.2.130.0070.00026.16
8.2.120.0000.00926.35
8.2.110.0070.00319.33
8.2.100.0120.00017.72
8.2.90.0050.00317.79
8.2.80.0080.00018.98
8.2.70.0040.00417.50
8.2.60.0000.00717.93
8.2.50.0050.00518.05
8.2.40.0000.00818.08
8.2.30.0060.00618.09
8.2.20.0040.00417.93
8.2.10.0050.00219.18
8.2.00.0030.00319.00
8.1.280.0110.01425.92
8.1.270.0080.00023.99
8.1.260.0040.01528.09
8.1.250.0000.00728.09
8.1.240.0060.01022.14
8.1.230.0080.00420.90
8.1.220.0040.00417.76
8.1.210.0080.00018.85
8.1.200.0050.00517.25
8.1.190.0060.00317.23
8.1.180.0080.00318.10
8.1.170.0000.00820.28
8.1.160.0070.00019.01
8.1.150.0040.00418.69
8.1.140.0030.00518.74
8.1.130.0000.01020.07
8.1.120.0000.00717.23
8.1.110.0030.00617.36
8.1.100.0000.00717.27
8.1.90.0000.00717.27
8.1.80.0060.00317.31
8.1.70.0040.00417.32
8.1.60.0060.00317.42
8.1.50.0040.00817.46
8.1.40.0060.00317.39
8.1.30.0020.00517.57
8.1.20.0050.00317.48
8.1.10.0040.00417.38
8.1.00.0040.00417.51
8.0.300.0040.00420.02
8.0.290.0000.00816.75
8.0.280.0050.00318.34
8.0.270.0050.00218.00
8.0.260.0040.00418.32
8.0.250.0040.00416.93
8.0.240.0000.00816.86
8.0.230.0030.00316.87
8.0.220.0000.00816.72
8.0.210.0030.00416.82
8.0.200.0000.00716.95
8.0.190.0000.00816.86
8.0.180.0000.00816.86
8.0.170.0030.00616.74
8.0.160.0040.00416.70
8.0.150.0050.00216.77
8.0.140.0020.00516.84
8.0.130.0060.00013.26
8.0.120.0000.00716.70
8.0.110.0040.00416.67
8.0.100.0040.00416.77
8.0.90.0000.00816.89
8.0.80.0080.01116.71
8.0.70.0040.00416.80
8.0.60.0070.00016.68
8.0.50.0040.00416.73
8.0.30.0760.01016.74
8.0.20.0180.01116.77
8.0.10.0440.00716.71
8.0.00.0140.01416.83
7.4.330.0030.00315.55
7.4.320.0030.00316.49
7.4.300.0000.00716.63
7.4.290.0000.00716.37
7.4.280.0040.00416.61
7.4.270.0040.00416.54
7.4.260.0030.00313.25
7.4.250.0070.00016.56
7.4.240.0000.00716.44
7.4.230.0030.00316.52
7.4.220.0050.00216.50
7.4.210.0090.00616.60
7.4.200.0070.00016.38
7.4.160.0200.01016.40
7.4.150.0150.01516.42
7.4.140.0220.00816.23
7.4.130.0290.00016.30
7.4.120.0150.01416.38
7.4.110.0250.00416.28
7.4.100.0200.01016.19
7.4.90.0220.00916.29
7.4.80.0250.00316.41
7.4.70.0220.00816.31
7.4.60.0260.00316.27
7.4.50.0180.01216.19
7.4.40.0240.00716.16
7.4.30.0180.01116.30
7.4.20.0200.00716.44
7.4.10.0310.00016.37
7.4.00.0180.00916.31
7.3.330.0040.00416.18
7.3.320.0000.00513.05
7.3.310.0040.00316.30
7.3.300.0060.00016.27
7.3.290.0100.00916.31
7.3.280.0110.00416.20
7.3.270.0260.00416.19
7.3.260.0210.00816.07
7.3.250.0240.00316.11
7.3.240.0610.00516.07
7.3.230.0200.01016.13
7.3.220.0250.00616.11
7.3.210.0200.00916.09
7.3.200.0300.01316.04
7.3.190.0170.01216.13
7.3.180.0270.00916.16
7.3.170.0210.01216.12
7.3.160.0220.01516.09
7.3.150.0220.01316.12
7.3.140.0230.00616.14
7.3.130.0240.00816.05
7.3.120.0340.00716.06
7.3.110.0210.01516.09
7.3.100.0240.01316.07
7.3.90.0240.00916.46
7.3.80.0260.01016.14
7.3.70.0200.01316.28
7.3.60.0110.01916.29
7.3.50.0200.00816.35
7.3.40.0160.00916.41
7.3.30.0150.01116.23
7.3.20.0240.00816.37
7.3.10.0190.01216.23
7.3.00.0190.01316.29

preferences:
68.69 ms | 401 KiB | 5 Q