3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array("a" => 1); $array2 = array("a" => 2); $array_merged = array_merge($array1, $array2); var_dump($array_merged); ?>

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)
8.3.60.0100.00618.18
8.3.50.0060.00916.23
8.3.40.0070.01118.67
8.3.30.0140.00018.58
8.3.20.0050.00320.04
8.3.10.0040.00421.55
8.3.00.0040.00421.03
8.2.180.0120.00618.11
8.2.170.0120.00322.96
8.2.160.0140.00722.13
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00020.47
8.2.120.0030.00526.35
8.2.110.0060.00320.37
8.2.100.0040.00817.91
8.2.90.0080.00019.23
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0000.00917.91
8.2.50.0050.00318.10
8.2.40.0030.00622.27
8.2.30.0080.00020.88
8.2.20.0070.00017.84
8.2.10.0000.00718.05
8.2.00.0000.00718.10
8.1.280.0090.00625.92
8.1.270.0080.00023.89
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00020.66
8.1.230.0060.00619.01
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0060.00317.22
8.1.190.0060.00317.10
8.1.180.0080.00018.10
8.1.170.0050.00318.51
8.1.160.0040.00419.00
8.1.150.0000.00820.66
8.1.140.0040.00419.46
8.1.130.0030.00318.77
8.1.120.0030.00317.32
8.1.110.0000.00717.43
8.1.100.0000.00817.37
8.1.90.0040.00417.28
8.1.80.0070.00017.35
8.1.70.0000.00817.32
8.1.60.0000.00717.43
8.1.50.0040.00417.36
8.1.40.0030.00617.35
8.1.30.0030.00617.57
8.1.20.0040.00417.51
8.1.10.0000.00917.34
8.1.00.0060.00317.29
8.0.300.0080.00018.77
8.0.290.0040.00416.58
8.0.280.0080.00018.37
8.0.270.0040.00417.18
8.0.260.0030.00316.66
8.0.250.0000.00716.87
8.0.240.0040.00416.85
8.0.230.0000.00716.77
8.0.220.0060.00016.80
8.0.210.0000.00816.65
8.0.200.0050.00216.94
8.0.190.0050.00516.92
8.0.180.0040.00416.80
8.0.170.0040.00416.84
8.0.160.0000.00716.91
8.0.150.0030.00516.71
8.0.140.0030.00516.79
8.0.130.0060.00013.29
8.0.120.0040.00416.80
8.0.110.0040.00416.79
8.0.100.0050.00216.69
8.0.90.0000.00816.83
8.0.80.0090.01316.77
8.0.70.0040.00416.68
8.0.60.0000.00916.63
8.0.50.0040.00416.80
8.0.30.0050.01316.80
8.0.20.0090.01017.40
8.0.10.0040.00416.98
8.0.00.0080.00916.62
7.4.330.0060.00015.55
7.4.320.0030.00316.42
7.4.300.0000.00616.44
7.4.290.0000.00716.57
7.4.280.0000.00716.52
7.4.270.0030.00316.44
7.4.260.0030.00313.25
7.4.250.0070.00016.40
7.4.240.0040.00416.33
7.4.230.0030.00316.61
7.4.220.0030.01416.47
7.4.210.0110.00916.55
7.4.200.0030.00316.31
7.4.160.0110.00516.20
7.4.150.0090.00917.40
7.4.140.0080.01217.86
7.4.130.0140.00616.41
7.4.120.0070.01216.49
7.4.110.0060.01016.38
7.4.100.0030.01516.29
7.4.90.0070.01016.43
7.4.80.0080.01719.39
7.4.70.0060.01116.38
7.4.60.0100.00716.27
7.4.50.0030.01416.59
7.4.40.0090.00916.30
7.4.30.0120.00916.30
7.4.00.0000.01515.03
7.3.330.0060.00012.98
7.3.320.0000.00612.84
7.3.310.0040.00216.25
7.3.300.0060.00015.98
7.3.290.0020.00516.12
7.3.280.0070.01016.13
7.3.270.0200.00317.40
7.3.260.0100.00616.38
7.3.250.0090.01216.30
7.3.240.0110.00616.23
7.3.230.0110.00816.13
7.3.210.0060.00916.44
7.3.200.0130.00616.13
7.3.190.0050.01016.39
7.3.180.0090.00916.40
7.3.170.0060.00916.07
7.3.160.0090.00616.11
7.2.330.0230.00316.30
7.2.320.0090.00916.34
7.2.310.0150.00016.59
7.2.300.0120.01216.59
7.2.290.0110.00716.62
7.2.60.0070.00716.88
7.1.200.0040.00815.50
7.1.100.0040.01118.05
7.1.70.0080.00816.81
7.1.60.0530.01033.29
7.1.50.0570.01732.99
7.1.40.0870.01732.52
7.1.30.0730.01332.79
7.1.20.0800.01332.63
7.1.10.0500.01014.67
7.1.00.0470.00714.66
7.0.200.0430.00714.79
7.0.190.0430.01014.70
7.0.180.0430.01014.40
7.0.170.0470.01314.26
7.0.160.0670.01014.13
7.0.150.0500.00714.26
7.0.140.0430.01714.48
7.0.130.0730.01314.64
7.0.120.0500.01014.77
7.0.110.1430.01014.43
7.0.100.0470.01714.42
7.0.90.0870.00714.37
7.0.80.0430.01014.38
7.0.70.0730.01014.43
7.0.60.0130.00714.24
7.0.50.0100.01314.42
7.0.40.0630.01014.66
7.0.30.0430.01314.50
7.0.20.0500.00714.62
7.0.10.0470.01714.50
7.0.00.0600.00714.55

preferences:
40.49 ms | 400 KiB | 5 Q