3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 'a' => 1, 'b' => 2, 'c' => 3 ]; $b = [ 'c' => 4 ]; print_r(array_merge($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)
8.3.60.0150.00618.30
8.3.50.0000.01418.04
8.3.40.0150.00018.54
8.3.30.0140.00318.60
8.3.20.0080.00018.35
8.3.10.0080.00021.53
8.3.00.0070.00020.70
8.2.180.0100.00718.18
8.2.170.0070.00722.96
8.2.160.0000.01420.94
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0000.00819.70
8.2.120.0080.00026.35
8.2.110.0030.00721.10
8.2.100.0040.00819.51
8.2.90.0040.00417.63
8.2.80.0000.00817.97
8.2.70.0000.00817.80
8.2.60.0040.00417.97
8.2.50.0030.00618.10
8.2.40.0000.00819.11
8.2.30.0070.00019.08
8.2.20.0030.00617.99
8.2.10.0000.00717.99
8.2.00.0030.00617.71
8.1.280.0080.00625.92
8.1.270.0100.00323.99
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00322.61
8.1.230.0060.00617.58
8.1.220.0080.00017.74
8.1.210.0060.00318.77
8.1.200.0080.00017.23
8.1.190.0030.00517.10
8.1.180.0000.00818.10
8.1.170.0040.00418.54
8.1.160.0040.00418.74
8.1.150.0000.00718.78
8.1.140.0000.00722.16
8.1.130.0030.00319.92
8.1.120.0100.00017.39
8.1.110.0000.00717.24
8.1.100.0000.00717.41
8.1.90.0090.00017.28
8.1.80.0040.00417.41
8.1.70.0000.00717.38
8.1.60.0000.00817.53
8.1.50.0040.00417.34
8.1.40.0040.00417.32
8.1.30.0060.00617.58
8.1.20.0030.00617.40
8.1.10.0000.00817.47
8.1.00.0070.00017.23
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.33
8.0.270.0000.00817.24
8.0.260.0030.00318.28
8.0.250.0070.00016.80
8.0.240.0040.00416.87
8.0.230.0060.00316.84
8.0.220.0000.00716.68
8.0.210.0040.00416.84
8.0.200.0000.00716.89
8.0.190.0000.00716.88
8.0.180.0000.00816.84
8.0.170.0000.00816.89
8.0.160.0000.00716.74
8.0.150.0000.00716.71
8.0.140.0040.00416.78
8.0.130.0060.00013.25
8.0.120.0000.00816.82
8.0.110.0040.00416.71
8.0.100.0040.00416.61
8.0.90.0030.00316.93
8.0.80.0070.01016.83
8.0.70.0030.00316.77
8.0.60.0000.00816.89
8.0.50.0030.00316.81
8.0.30.0150.00517.13
8.0.20.0100.01017.40
8.0.10.0000.00717.00
8.0.00.0120.00616.52
7.4.330.0030.00315.55
7.4.320.0060.00016.52
7.4.300.0000.00716.44
7.4.290.0060.00016.32
7.4.280.0050.00316.57
7.4.270.0000.00716.51
7.4.260.0090.00016.51
7.4.250.0030.00316.32
7.4.240.0070.00016.53
7.4.230.0000.00716.36
7.4.220.0000.00816.61
7.4.210.0150.00316.54
7.4.200.0040.00416.34
7.4.160.0050.01216.34
7.4.140.0090.00917.86
7.4.130.0120.00916.36
7.4.120.0100.00816.36
7.4.110.0070.01116.35
7.4.100.0060.01616.58
7.4.90.0120.00616.30
7.4.80.0090.01019.39
7.4.70.0090.01016.18
7.4.60.0100.01016.30
7.4.50.0080.00716.23
7.4.40.0160.00416.34
7.4.00.0070.01114.74
7.3.330.0000.00512.95
7.3.320.0030.00313.04
7.3.310.0030.00616.27
7.3.300.0000.00716.11
7.3.290.0000.00716.08
7.3.280.0100.00716.12
7.3.260.0090.01016.18
7.3.240.0090.00916.35
7.3.230.0090.00616.32
7.3.210.0130.01016.14
7.3.200.0100.01016.23
7.3.190.0120.00916.28
7.3.180.0180.00516.34
7.3.170.0150.00716.24
7.3.160.0160.00716.31
7.2.330.0120.00616.45
7.2.320.0130.00916.13
7.2.310.0050.01216.27
7.2.300.0040.01316.30
7.2.290.0170.00616.45
7.2.110.0300.00714.66
7.2.100.0290.00714.34
7.2.90.0330.00614.64
7.2.80.0260.00914.23
7.2.70.0280.00814.77
7.2.60.0460.00614.36
7.2.50.0370.00314.53
7.2.40.0450.00314.85
7.2.30.0300.00414.82
7.2.20.0400.01214.79
7.2.10.0350.00914.59
7.2.00.0270.01014.84
7.1.230.0340.00513.62
7.1.220.0340.00413.52
7.1.210.0340.01613.80
7.1.200.0400.00713.89
7.1.190.0260.00713.73
7.1.180.0290.00613.64
7.1.170.0290.00613.58
7.1.160.0310.00813.89
7.1.150.0300.00313.90
7.1.140.1240.00613.62
7.1.130.0310.00413.67
7.1.120.0300.00713.70
7.1.110.0420.01013.72
7.1.100.0450.00013.57
7.1.90.0210.00913.46
7.1.80.0260.00313.59
7.1.70.0070.00713.75
7.1.60.0520.00831.85
7.1.50.0430.01731.40
7.1.40.0290.00331.52
7.1.30.0510.01031.65
7.1.20.0540.01031.60
7.1.10.0100.00613.78
7.1.00.0330.01013.38
5.6.380.0110.00614.11

preferences:
59.01 ms | 400 KiB | 5 Q