3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [0, 1, 2, 0, 1, 2]; var_dump(array_keys($a, array_unique($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)
8.3.60.0140.00318.56
8.3.50.0100.01016.43
8.3.40.0120.00618.77
8.3.30.0140.00018.55
8.3.20.0050.00321.77
8.3.10.0030.00521.70
8.3.00.0050.00319.14
8.2.180.0100.00718.17
8.2.170.0070.01022.96
8.2.160.0130.00022.26
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0020.00520.46
8.2.120.0070.00026.35
8.2.110.0030.00720.27
8.2.100.0120.00017.91
8.2.90.0040.00419.09
8.2.80.0080.00017.97
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0060.00318.10
8.2.40.0080.00320.47
8.2.30.0030.00520.95
8.2.20.0000.00717.96
8.2.10.0050.00217.98
8.2.00.0070.00017.91
8.1.280.0180.00425.92
8.1.270.0030.00523.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0110.00017.82
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.10
8.1.190.0050.00317.23
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0000.00718.92
8.1.150.0050.00318.68
8.1.140.0070.00019.50
8.1.130.0000.00818.86
8.1.120.0000.00717.36
8.1.110.0000.00817.26
8.1.100.0040.00417.37
8.1.90.0080.00017.36
8.1.80.0040.00417.27
8.1.70.0000.00717.29
8.1.60.0030.00517.45
8.1.50.0030.00517.50
8.1.40.0090.00017.39
8.1.30.0040.00417.55
8.1.20.0050.00217.51
8.1.10.0040.00417.38
8.1.00.0040.00417.39
8.0.300.0080.00019.90
8.0.290.0080.00016.63
8.0.280.0070.00018.37
8.0.270.0070.00017.13
8.0.260.0000.00716.66
8.0.250.0030.00316.82
8.0.240.0040.00416.76
8.0.230.0070.00016.88
8.0.220.0030.00316.84
8.0.210.0030.00316.74
8.0.200.0000.00716.79
8.0.190.0050.00316.91
8.0.180.0040.00416.78
8.0.170.0070.00016.76
8.0.160.0000.00716.84
8.0.150.0040.00416.75
8.0.140.0000.00716.75
8.0.130.0000.00613.20
8.0.120.0070.00016.77
8.0.110.0000.00716.90
8.0.100.0000.00816.88
8.0.90.0080.00016.66
8.0.80.0030.01316.70
8.0.70.0000.00716.63
8.0.60.0050.00216.88
8.0.50.0040.00416.88
8.0.30.0120.00817.06
8.0.20.0110.01017.40
8.0.10.0040.00316.82
8.0.00.0130.00316.63
7.4.330.0000.00615.55
7.4.320.0060.00016.48
7.4.300.0060.00016.33
7.4.290.0070.00316.53
7.4.280.0000.00816.32
7.4.270.0060.00316.38
7.4.260.0000.00513.20
7.4.250.0070.00016.40
7.4.240.0070.00016.43
7.4.230.0030.00316.32
7.4.220.0090.01316.41
7.4.210.0150.00616.50
7.4.200.0070.00016.47
7.4.160.0060.01116.31
7.4.150.0070.01117.40
7.4.140.0090.01017.86
7.4.130.0160.00916.55
7.4.120.0100.00916.35
7.4.110.0100.00716.37
7.4.100.0070.01116.30
7.4.90.0060.01216.32
7.4.80.0100.01019.39
7.4.70.0130.00716.52
7.4.60.0100.00716.45
7.4.50.0110.00416.44
7.4.40.0090.00616.43
7.4.30.0060.00916.38
7.4.00.0100.00614.77
7.3.330.0030.00313.05
7.3.320.0030.00313.06
7.3.310.0000.00716.27
7.3.300.0030.00316.15
7.3.290.0060.00916.11
7.3.280.0080.00916.11
7.3.270.0180.00017.40
7.3.260.0100.01016.42
7.3.250.0130.00516.32
7.3.240.0050.01216.35
7.3.230.0120.00416.09
7.3.210.0130.00816.47
7.3.200.0130.01016.11
7.3.190.0130.00816.43
7.3.180.0090.00616.11
7.3.170.0080.01016.14
7.3.160.0030.01316.27
7.2.330.0110.00616.46
7.2.320.0100.00716.50
7.2.310.0060.01116.52
7.2.300.0040.01516.50
7.2.290.0120.00616.14
7.2.60.0040.00816.54
7.1.200.0100.00315.67
7.1.70.0030.00617.14
7.1.60.0870.00733.27
7.1.50.1170.02332.91
7.1.40.0430.02032.48
7.1.30.1300.01732.50
7.1.20.1430.01332.62
7.1.10.0300.01014.61
7.1.00.1070.01314.71
7.0.200.0800.00714.90
7.0.190.1200.00714.72
7.0.180.0000.01714.41
7.0.170.1870.01314.30
7.0.160.1200.01314.25
7.0.150.0630.00714.55
7.0.140.0630.01314.47
7.0.130.0270.01014.73
7.0.120.0100.00714.65
7.0.110.1000.00714.34
7.0.100.0730.01014.27
7.0.90.0370.01014.31
7.0.80.0670.01014.30
7.0.70.0830.00714.12
7.0.60.0970.01314.37
7.0.50.1100.01014.61
7.0.40.0800.01314.77
7.0.30.0070.01314.68
7.0.20.1400.01714.43
7.0.10.0200.00314.59
7.0.00.0100.01014.56

preferences:
39.42 ms | 400 KiB | 5 Q