3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a', 'b', 'b', 'c']; var_dump(array_unique($x));

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)
8.3.60.0100.00618.43
8.3.50.0070.01016.22
8.3.40.0110.00418.51
8.3.30.0070.00718.41
8.3.20.0000.00820.18
8.3.10.0000.00821.60
8.3.00.0050.00320.94
8.2.180.0150.00018.29
8.2.170.0040.01122.96
8.2.160.0150.00022.20
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00020.43
8.2.120.0040.00426.35
8.2.110.0030.00620.24
8.2.100.0000.01117.78
8.2.90.0030.00619.23
8.2.80.0050.00317.97
8.2.70.0070.00317.50
8.2.60.0000.00818.04
8.2.50.0030.00618.10
8.2.40.0050.00322.23
8.2.30.0030.00520.91
8.2.20.0070.00017.87
8.2.10.0040.00417.92
8.2.00.0040.00417.86
8.1.280.0030.01025.92
8.1.270.0040.00422.01
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0090.00022.54
8.1.230.0080.00319.01
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0000.00817.23
8.1.190.0000.00817.11
8.1.180.0030.00618.10
8.1.170.0050.00318.66
8.1.160.0070.00018.98
8.1.150.0040.00418.76
8.1.140.0040.00419.54
8.1.130.0070.00018.85
8.1.120.0030.00317.42
8.1.110.0040.00417.34
8.1.100.0000.00817.38
8.1.90.0000.01117.29
8.1.80.0030.00317.30
8.1.70.0040.00317.34
8.1.60.0070.00017.50
8.1.50.0040.00417.49
8.1.40.0090.00017.34
8.1.30.0030.00617.46
8.1.20.0030.00617.59
8.1.10.0040.00417.41
8.1.00.0040.00417.27
8.0.300.0030.00518.77
8.0.290.0030.00516.63
8.0.280.0000.00718.29
8.0.270.0000.00717.17
8.0.260.0030.00316.82
8.0.250.0030.00316.93
8.0.240.0040.00416.75
8.0.230.0000.00716.86
8.0.220.0030.00316.80
8.0.210.0000.00716.83
8.0.200.0070.00016.80
8.0.190.0090.00016.90
8.0.180.0000.00716.84
8.0.170.0000.00716.67
8.0.160.0000.00816.70
8.0.150.0040.00416.73
8.0.140.0030.00616.79
8.0.130.0030.00313.25
8.0.120.0040.00416.78
8.0.110.0070.00016.85
8.0.100.0000.00816.61
8.0.90.0000.00716.88
8.0.80.0100.00616.86
8.0.70.0000.00716.76
8.0.60.0070.00016.64
8.0.50.0000.00816.76
8.0.30.0130.00717.03
8.0.20.0110.01017.40
8.0.10.0080.00016.72
8.0.00.0160.00316.75
7.4.330.0000.00515.55
7.4.320.0030.00316.45
7.4.300.0000.00716.47
7.4.290.0080.00016.53
7.4.280.0070.00016.51
7.4.270.0070.00016.42
7.4.260.0000.00813.18
7.4.250.0030.00316.48
7.4.240.0000.00716.50
7.4.230.0030.00316.43
7.4.220.0060.01216.39
7.4.210.0040.01116.62
7.4.200.0040.00316.60
7.4.160.0080.00816.36
7.4.150.0140.00417.40
7.4.140.0080.01217.86
7.4.130.0060.01216.30
7.4.120.0090.01016.34
7.3.330.0020.00212.86
7.3.320.0050.00013.11
7.3.310.0030.00516.20
7.3.300.0030.00316.11
7.3.290.0060.00916.13
7.3.280.0080.00916.12
7.3.270.0110.00717.40
7.3.260.0140.00616.37
7.3.250.0080.01016.25
7.3.240.0130.00516.14
7.1.30.0470.00332.57

preferences:
40.76 ms | 401 KiB | 5 Q