3v4l.org

run code in 300+ PHP versions simultaneously
<?php $alpha = 'aabbccddeeffgghhiijjkk'; $alphaArray = str_split($alpha); $uniqArray = array_unique($alphaArray); $diff = array_diff_assoc($alphaArray, $uniqArray); var_dump($diff);

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)
8.3.60.0040.01118.18
8.3.50.0090.00616.44
8.3.40.0100.01018.47
8.3.30.0040.01118.71
8.3.20.0040.00420.29
8.3.10.0030.00623.53
8.3.00.0050.00321.92
8.2.180.0100.01016.32
8.2.170.0090.00622.96
8.2.160.0080.00820.72
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00821.05
8.2.120.0070.00026.16
8.2.110.0070.00322.27
8.2.100.0080.00317.59
8.2.90.0050.00317.78
8.2.80.0040.00417.97
8.2.70.0050.00517.38
8.2.60.0000.00917.80
8.2.50.0040.00418.10
8.2.40.0000.00820.61
8.2.30.0070.00020.96
8.2.20.0000.00917.91
8.2.10.0040.00418.10
8.2.00.0000.00718.11
8.1.280.0090.00625.92
8.1.270.0070.00022.19
8.1.260.0000.00826.35
8.1.250.0050.00228.09
8.1.240.0090.00022.14
8.1.230.0060.00620.97
8.1.220.0000.00817.75
8.1.210.0040.00418.97
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0000.00718.87
8.1.160.0000.00719.09
8.1.150.0050.00320.61
8.1.140.0000.00719.50
8.1.130.0030.00318.86
8.1.120.0050.00317.45
8.1.110.0070.00017.20
8.1.100.0040.00417.36
8.1.90.0040.00417.36
8.1.80.0000.00717.28
8.1.70.0000.00717.36
8.1.60.0050.00517.55
8.1.50.0070.00017.35
8.1.40.0030.00617.38
8.1.30.0040.00417.67
8.1.20.0060.00317.56
8.1.10.0060.00317.47
8.1.00.0050.00317.38
8.0.300.0030.00619.89
8.0.290.0000.00916.58
8.0.280.0000.00718.29
8.0.270.0000.00717.22
8.0.260.0030.00316.73
8.0.250.0030.00316.88
8.0.240.0030.00616.79
8.0.230.0000.00716.89
8.0.220.0000.00716.82
8.0.210.0030.00316.70
8.0.200.0000.00716.77
8.0.190.0030.00616.79
8.0.180.0080.00016.75
8.0.170.0040.00416.83
8.0.160.0040.00416.86
8.0.150.0040.00416.72
8.0.140.0070.00016.69
8.0.130.0000.00513.16
8.0.120.0000.00716.77
8.0.110.0000.00816.83
8.0.100.0040.00316.88
8.0.90.0000.00816.85
8.0.80.0150.00916.76
8.0.70.0050.00316.76
8.0.60.0000.00716.69
8.0.50.0030.00516.86
8.0.30.0080.00917.01
8.0.20.0100.00917.40
8.0.10.0050.00316.95
8.0.00.0160.00316.58
7.4.330.0000.00615.55
7.4.320.0030.00316.58
7.4.300.0030.00316.54
7.4.290.0000.00716.43
7.4.280.0030.00616.52
7.4.270.0030.00316.51
7.4.260.0100.00316.42
7.4.250.0000.00716.43
7.4.240.0000.00716.58
7.4.230.0000.00716.27
7.4.220.0030.00316.33
7.4.210.0070.00716.49
7.4.200.0070.00016.47
7.4.160.0100.00916.42
7.4.150.0100.00717.40
7.4.140.0120.00617.86
7.4.130.0000.02016.41
7.4.120.0110.01016.44
7.4.110.0110.01416.47
7.4.100.0130.00916.28
7.4.90.0080.00816.42
7.4.80.0090.00919.39
7.4.70.0130.00316.32
7.4.60.0070.01016.28
7.4.50.0080.00816.38
7.4.40.0100.01316.38
7.4.30.0140.00716.40
7.4.00.0070.01014.75
7.3.330.0020.00212.87
7.3.320.0030.00313.03
7.3.310.0060.00315.99
7.3.300.0040.00416.18
7.3.290.0040.01116.11
7.3.280.0090.00816.13
7.3.270.0100.00717.40
7.3.260.0080.00916.51
7.3.250.0130.00716.19
7.3.240.0110.00916.37
7.3.230.0100.00716.24
7.3.210.0060.01016.09
7.3.200.0080.00816.23
7.3.190.0030.01316.43
7.3.180.0110.00716.44
7.3.170.0120.01316.37
7.3.160.0110.01116.06
7.2.330.0330.01816.21
7.2.320.0030.01416.59
7.2.310.0100.00716.61
7.2.300.0090.01516.39
7.2.290.0040.01216.58
7.2.60.0000.01416.48
7.2.00.0100.01019.07
7.1.200.0040.01115.63
7.1.100.0070.00718.15
7.1.70.0090.00917.03
7.1.60.0290.01234.96
7.1.50.0270.01034.52
7.1.40.0310.01334.29
7.1.30.0380.01434.41
7.1.20.0320.01334.63
7.1.10.0120.00916.45
7.1.00.0070.01116.45
7.0.200.0080.01116.77
7.0.190.0060.01216.80
7.0.180.0110.01116.14
7.0.170.0120.01116.18
7.0.160.0000.01916.14
7.0.150.0090.01116.18
7.0.140.0210.00315.99
7.0.130.0050.01116.27
7.0.120.0080.00816.46
7.0.110.0110.01516.16
7.0.100.0040.01216.10
7.0.90.0090.01016.42
7.0.80.0060.01016.19
7.0.70.0040.01516.13
7.0.60.0030.01316.08
7.0.50.0030.01516.35
7.0.40.0060.01516.48
7.0.30.0070.01416.32
7.0.20.0070.01316.36
7.0.10.0090.00916.42
7.0.00.0080.01116.27

preferences:
38.25 ms | 401 KiB | 5 Q