3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['test' => ['bla', 'bli']]; $y = ['test' => ['blo', 'bly']]; $z = array_merge($x, $y); var_dump($z);

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)
8.3.60.0140.00418.20
8.3.50.0070.00717.93
8.3.40.0090.00618.56
8.3.30.0040.01518.42
8.3.20.0080.00022.04
8.3.10.0040.00420.04
8.3.00.0040.00423.66
8.2.180.0090.00618.42
8.2.170.0170.00322.96
8.2.160.0100.00322.17
8.2.150.0070.00424.18
8.2.140.0030.00624.66
8.2.130.0060.00326.16
8.2.120.0040.00426.16
8.2.110.0040.00420.52
8.2.100.0060.00617.66
8.2.90.0050.00317.50
8.2.80.0040.00418.78
8.2.70.0060.00317.93
8.2.60.0050.00318.16
8.2.50.0050.00318.10
8.2.40.0000.00819.23
8.2.30.0000.00719.09
8.2.20.0040.00417.80
8.2.10.0040.00419.22
8.2.00.0080.00020.91
8.1.280.0090.00625.92
8.1.270.0060.00320.64
8.1.260.0150.00026.35
8.1.250.0000.00728.09
8.1.240.0070.00320.64
8.1.230.0000.01117.77
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0000.00917.22
8.1.190.0030.00517.22
8.1.180.0040.00418.10
8.1.170.0080.00018.46
8.1.160.0000.00820.56
8.1.150.0000.00718.81
8.1.140.0000.00820.81
8.1.130.0030.00320.17
8.1.120.0060.00317.30
8.1.110.0000.00717.43
8.1.100.0000.00817.29
8.1.90.0040.00417.27
8.1.80.0040.00417.38
8.1.70.0040.00417.40
8.1.60.0000.00817.52
8.1.50.0040.00417.48
8.1.40.0000.00817.49
8.1.30.0040.00417.64
8.1.20.0080.00017.54
8.1.10.0040.00417.44
8.1.00.0000.00817.38
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00718.33
8.0.270.0070.00017.26
8.0.260.0030.00319.91
8.0.250.0080.00016.85
8.0.240.0000.01016.91
8.0.230.0000.00716.75
8.0.220.0080.00016.67
8.0.210.0040.00416.78
8.0.200.0030.00316.74
8.0.190.0040.00416.79
8.0.180.0080.00016.70
8.0.170.0030.00616.82
8.0.160.0040.00416.84
8.0.150.0000.00716.84
8.0.140.0040.00416.81
8.0.130.0000.00513.34
8.0.120.0040.00416.68
8.0.110.0000.00716.79
8.0.100.0000.00716.93
8.0.90.0040.00416.71
8.0.80.0060.01216.88
8.0.70.0070.00016.93
8.0.60.0080.00016.87
8.0.50.0060.00316.88
8.0.30.0130.00317.25
8.0.20.0070.01217.01
8.0.10.0000.00716.96
8.0.00.0110.01016.67
7.4.330.0000.00515.55
7.4.320.0000.00616.52
7.4.300.0050.00216.38
7.4.290.0040.00416.48
7.4.280.0040.00416.50
7.4.270.0030.00316.51
7.4.260.0000.00513.21
7.4.250.0000.00716.40
7.4.240.0020.00516.42
7.4.230.0000.00716.41
7.4.220.0030.00316.51
7.4.210.0040.01216.47
7.4.200.0030.00316.36
7.4.130.0090.00916.48
7.4.120.0130.01316.30
7.4.110.0150.00316.35
7.4.100.0140.00316.38
7.4.90.0060.01316.47
7.4.80.0110.00519.39
7.4.70.0030.01316.38
7.4.60.0070.01016.21
7.4.50.0090.00616.29
7.4.40.0090.00916.16
7.4.00.0000.01714.72
7.3.330.0000.00716.22
7.3.320.0000.00613.03
7.3.310.0030.00315.96
7.3.300.0040.00416.17
7.3.290.0050.00216.08
7.3.280.0040.01216.08
7.3.260.0100.01116.17
7.3.230.0130.00616.13
7.3.210.0090.00916.09
7.3.200.0080.00816.02
7.3.190.0100.01016.16
7.3.180.0040.01216.34
7.3.170.0060.01216.14
7.3.160.0030.01716.10
7.3.80.0000.01214.91
7.3.70.0030.00814.68
7.3.60.0090.00314.61
7.3.50.0070.00414.46
7.3.40.0060.00614.46
7.3.30.0030.01314.57
7.3.20.0220.00914.57
7.3.10.0160.01014.36
7.3.00.0110.00814.69
7.2.330.0070.01016.31
7.2.320.0150.00616.24
7.2.310.0030.01716.39
7.2.300.0130.00316.37
7.2.290.0120.00416.57
7.2.210.0140.00014.74
7.2.200.0060.00614.59
7.2.190.0060.00914.82
7.2.180.0040.01214.60
7.2.170.0100.00314.72
7.2.160.0070.01014.95
7.2.150.0150.00714.82
7.2.140.0130.00915.04
7.2.130.0170.00414.89
7.2.120.0190.01014.68
7.2.110.0200.00015.10
7.2.100.0170.00315.02
7.2.90.0190.01014.80
7.2.80.0130.00915.13
7.2.70.0170.00315.04
7.2.60.0070.01414.82
7.2.50.0180.00414.77
7.2.40.0200.00714.98
7.2.30.0180.00314.93
7.2.20.0130.00814.79
7.2.10.0220.00314.85
7.2.00.0200.00014.93
7.1.310.0090.00913.88
7.1.300.0150.00813.93
7.1.290.0150.00413.93
7.1.280.0140.00713.98
7.1.270.0190.00613.63
7.1.260.0130.00613.63
7.1.250.0150.00613.85

preferences:
41.25 ms | 400 KiB | 5 Q