3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => 1, 'b' => 2]; $b = ['a' => 5, 'c' => 8]; var_dump($a + $b); var_dump(array_merge($a, $b));

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)
8.4.120.0060.00820.52
8.4.110.0130.00718.84
8.4.100.0140.00817.33
8.4.90.0120.00819.48
8.4.80.0060.00217.66
8.4.70.0110.00917.62
8.4.60.0120.00917.71
8.4.50.0100.00917.64
8.4.40.0080.00017.46
8.4.30.0130.00320.50
8.4.20.0140.00717.64
8.4.10.0030.00519.29
8.3.250.0120.00718.95
8.3.240.0110.00916.55
8.3.230.0090.00916.58
8.3.220.0080.00917.09
8.3.210.0070.01316.61
8.3.200.0100.00916.61
8.3.190.0120.00716.44
8.3.180.0110.00816.39
8.3.170.0120.00616.79
8.3.160.0050.00516.60
8.3.150.0130.00617.01
8.3.140.0000.00818.89
8.3.130.0090.00918.53
8.3.120.0030.00619.03
8.3.110.0120.00618.21
8.3.100.0070.00316.61
8.3.90.0060.00326.77
8.3.80.0060.00318.18
8.3.70.0060.00918.18
8.3.60.0150.00318.43
8.3.50.0100.01024.56
8.3.40.0150.00421.90
8.3.30.0070.00718.42
8.3.20.0000.00824.18
8.3.10.0030.00524.66
8.3.00.0040.00426.16
8.2.290.0120.00820.29
8.2.280.0080.01018.25
8.2.270.0070.00017.42
8.2.260.0140.00016.66
8.2.250.0120.00618.11
8.2.240.0140.00418.76
8.2.230.0030.00520.94
8.2.220.0090.00624.06
8.2.210.0000.00826.77
8.2.200.0060.00316.63
8.2.190.0040.01116.58
8.2.180.0070.01425.92
8.2.170.0120.00918.75
8.2.160.0040.01522.96
8.2.150.0070.00025.66
8.2.140.0040.00424.66
8.2.130.0030.00626.16
8.2.120.0000.00719.64
8.2.110.0090.00021.05
8.2.100.0090.00319.57
8.2.90.0080.00019.05
8.2.80.0030.00517.97
8.2.70.0090.00017.50
8.2.60.0040.00417.91
8.2.50.0030.00618.07
8.2.40.0090.00017.86
8.2.30.0030.00517.89
8.2.20.0040.00418.05
8.2.10.0040.00419.16
8.2.00.0050.00319.23
8.1.330.0100.00722.02
8.1.320.0130.00816.24
8.1.310.0080.00016.41
8.1.300.0140.00517.94
8.1.290.0080.00030.84
8.1.280.0110.00425.92
8.1.270.0050.00322.06
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0030.00720.87
8.1.230.0000.01222.20
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0080.00017.10
8.1.180.0050.00318.10
8.1.170.0030.00518.66
8.1.160.0000.01018.75
8.1.150.0070.00018.86
8.1.140.0040.00418.67
8.1.130.0030.00320.11
8.1.120.0040.00417.39
8.1.110.0000.00717.39
8.1.100.0030.00517.35
8.1.90.0000.00717.39
8.1.80.0040.00717.29
8.1.70.0070.00017.36
8.1.60.0060.00317.53
8.1.50.0040.00417.32
8.1.40.0000.00717.50
8.1.30.0040.00417.51
8.1.20.0040.00417.39
8.1.10.0040.00417.50
8.1.00.0000.00717.39
8.0.300.0080.00018.77
8.0.290.0030.00716.63
8.0.280.0070.00018.29
8.0.270.0030.00518.00
8.0.260.0030.00318.61
8.0.250.0060.00316.84
8.0.240.0000.00716.96
8.0.230.0000.00716.85
8.0.220.0000.00716.79
8.0.210.0000.00816.77
8.0.200.0030.00316.90
8.0.190.0050.00316.93
8.0.180.0070.00016.91
8.0.170.0030.00516.93
8.0.160.0000.00816.98
8.0.150.0000.00816.80
8.0.140.0040.00316.73
8.0.130.0000.00613.23
8.0.120.0000.00716.83
8.0.110.0000.00716.94
8.0.100.0000.00716.99
8.0.90.0000.00716.91
8.0.80.0070.00816.85
8.0.70.0030.00616.86
8.0.60.0040.00416.88
8.0.50.0080.00016.91
8.0.30.0110.00816.86
8.0.20.0110.00817.00
8.0.10.0050.00316.80
8.0.00.0090.00916.68
7.4.330.0030.00315.55
7.4.320.0020.00516.43
7.4.300.0000.00716.50
7.4.290.0070.00016.43
7.4.280.0030.00516.40
7.4.270.0050.00216.53
7.4.260.0000.00613.21
7.4.250.0070.00016.40
7.4.240.0030.00516.52
7.4.230.0030.00516.23
7.4.220.0030.00316.47
7.4.210.0060.00916.50
7.4.200.0030.00316.23
7.4.130.0110.00616.39
7.4.120.0070.01016.22
7.4.110.0140.00416.09
7.4.100.0120.00916.32
7.4.90.0110.00816.26
7.4.80.0110.00816.39
7.4.70.0180.00416.38
7.4.60.0070.01016.38
7.4.50.0130.01316.15
7.4.40.0210.00316.02
7.4.30.0100.00716.59
7.4.20.0160.00815.83
7.4.10.0070.01116.37
7.4.00.0160.00316.20
7.3.330.0000.00716.09
7.3.320.0030.00313.17
7.3.310.0030.00316.03
7.3.300.0030.00316.20
7.3.290.0050.01316.14
7.3.260.0100.01416.34
7.3.250.0100.00716.50
7.3.240.0120.00616.11
7.3.230.0150.00516.15
7.3.220.0110.00816.10
7.3.210.0120.00616.21
7.3.200.0110.00716.21
7.3.190.0140.00816.30
7.3.180.0080.01616.21
7.3.170.0110.01116.13
7.3.160.0140.00416.07
7.3.150.0100.00716.07
7.3.140.0070.01016.09
7.3.130.0120.00616.11
7.3.120.0090.00816.25
7.3.110.0100.01416.16
7.3.100.0070.01116.43
7.3.90.0060.01416.49
7.3.80.0040.01316.20
7.3.70.0120.00816.27
7.3.60.0110.00716.21
7.3.50.0090.00916.30
7.3.40.0110.00916.30
7.3.30.0120.00616.28
7.3.20.0130.00816.20
7.3.10.0110.00716.30
7.3.00.0050.01416.23

preferences:
29.14 ms | 403 KiB | 5 Q