3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [0, 1, 2]; $b = [3, 4]; var_dump($a + $b); var_dump($b + $a); $a = ["a" => 0, "b" => 1, "c" => 2]; $b = ["b" => 3, "d" => 4]; var_dump($a + $b); var_dump($b + $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)
8.3.60.0090.00616.50
8.3.50.0100.01016.27
8.3.40.0150.00621.91
8.3.30.0110.00418.71
8.3.20.0070.00024.18
8.3.10.0040.00424.66
8.3.00.0050.00326.16
8.2.180.0100.00725.92
8.2.170.0170.00318.79
8.2.160.0070.00722.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00726.35
8.2.110.0100.00022.20
8.2.100.0100.00319.45
8.2.90.0040.00417.75
8.2.80.0050.00318.79
8.2.70.0000.00917.63
8.2.60.0060.00317.25
8.2.50.0080.00018.05
8.2.40.0040.00418.22
8.2.30.0070.00018.05
8.2.20.0070.00017.99
8.2.10.0000.00819.14
8.2.00.0040.00419.23
8.1.280.0140.00425.92
8.1.270.0050.00323.99
8.1.260.0000.00928.09
8.1.250.0040.00428.09
8.1.240.0070.00420.83
8.1.230.0090.00317.76
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0050.00317.23
8.1.180.0040.00418.10
8.1.170.0000.00818.46
8.1.160.0000.00718.82
8.1.150.0000.00818.80
8.1.140.0030.00518.87
8.1.130.0000.00720.14
8.1.120.0030.00317.44
8.1.110.0000.00717.41
8.1.100.0080.00017.27
8.1.90.0000.00817.27
8.1.80.0070.00317.28
8.1.70.0000.00817.36
8.1.60.0030.00617.47
8.1.50.0000.00817.46
8.1.40.0030.00517.45
8.1.30.0030.00617.62
8.1.20.0030.00517.54
8.1.10.0080.00017.29
8.1.00.0030.00617.42
8.0.300.0000.00720.57
8.0.290.0080.00016.75
8.0.280.0000.00818.43
8.0.270.0070.00018.06
8.0.260.0030.00320.18
8.0.250.0030.00316.94
8.0.240.0000.00717.02
8.0.230.0050.00316.93
8.0.220.0000.00716.92
8.0.210.0030.00416.91
8.0.200.0080.00016.97
8.0.190.0070.00016.94
8.0.180.0040.00416.74
8.0.170.0050.00316.91
8.0.160.0070.00016.96
8.0.150.0070.00016.89
8.0.140.0050.00316.82
8.0.130.0000.00513.30
8.0.120.0040.00416.75
8.0.110.0000.01016.76
8.0.100.0000.00716.66
8.0.90.0050.00216.78
8.0.80.0080.01016.78
8.0.70.0000.00716.75
8.0.60.0050.00316.70
8.0.50.0000.00716.99
8.0.30.0060.01217.14
8.0.20.0140.01016.85
8.0.10.0040.00417.06
8.0.00.0180.00316.62
7.4.330.0050.00015.55
7.4.320.0030.00316.45
7.4.300.0000.00716.37
7.4.290.0080.00016.29
7.4.280.0000.00816.40
7.4.270.0070.00016.44
7.4.260.0060.00013.13
7.4.250.0110.00016.41
7.4.240.0050.00216.54
7.4.230.0000.00716.39
7.4.220.0000.00816.27
7.4.210.0040.01116.45
7.4.200.0030.00316.43
7.4.130.0090.00916.37
7.4.120.0200.02016.45
7.4.110.0330.00416.38
7.4.100.0370.00616.45
7.4.90.0230.01016.41
7.4.80.0190.01316.20
7.4.70.0310.00416.57
7.4.60.0250.01016.51
7.4.50.0340.00516.26
7.4.40.0310.00516.47
7.4.30.0340.00316.53
7.4.20.0310.00316.50
7.4.10.0240.01016.41
7.4.00.0140.00816.54
7.3.330.0070.00016.00
7.3.320.0000.00513.11
7.3.310.0070.00016.19
7.3.300.0040.00416.05
7.3.290.0040.00916.21
7.3.260.0100.01416.18
7.3.240.0120.00816.33
7.3.230.0250.01516.42
7.3.220.0100.01816.21
7.3.210.0250.01016.30
7.3.200.0240.01016.37
7.3.190.0370.00716.48
7.3.180.0320.00516.30
7.3.170.0270.01016.31
7.3.160.0270.01416.54
7.3.150.0280.01016.27
7.3.140.0260.00816.30
7.3.130.0240.01216.23
7.3.120.0250.01116.18
7.3.110.0320.01016.09
7.3.100.0240.01416.14
7.3.90.0280.00616.50
7.3.80.0360.00616.38
7.3.70.0300.01016.34
7.3.60.0190.01716.31
7.3.50.0390.00316.32
7.3.40.0230.01416.37
7.3.30.0290.00516.24
7.3.20.0270.01716.21
7.3.10.0230.01316.47
7.3.00.0250.00316.02
7.2.340.0140.01116.55
7.2.330.0180.01516.48
7.2.320.0280.00416.59
7.2.310.0270.01016.20
7.2.300.0240.01216.38
7.2.290.0280.00616.37
7.2.280.0300.00816.32
7.2.270.0260.00816.59
7.2.260.0250.01416.32
7.2.250.0300.01116.57
7.2.240.0340.00716.59
7.2.230.0250.01116.47
7.2.220.0270.01216.32
7.2.210.0310.01216.38
7.2.200.0220.01816.54
7.2.190.0290.00716.39
7.2.180.0290.01116.36
7.2.170.0290.00716.33
7.2.160.0220.01316.23
7.2.150.0330.00716.45
7.2.140.0370.00416.41
7.2.130.0120.01716.29
7.2.120.0120.01216.18
7.2.110.0180.00916.39
7.2.100.0160.00816.25
7.2.90.0030.02016.30
7.2.80.0300.00016.40
7.2.70.0210.00616.36
7.2.60.0180.01316.12
7.2.50.0600.01916.24
7.2.40.0220.00416.29
7.2.30.0210.00916.45
7.2.20.0170.00916.14
7.2.10.0170.01416.25
7.2.00.0150.01316.31

preferences:
59.15 ms | 400 KiB | 5 Q