3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ["a", "b", "c", "d", "e"]; var_export( array_merge_recursive($x, $x) );

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)
8.5.00.0100.01219.93
8.4.150.0020.00114.05
8.4.140.0160.00517.55
8.4.130.0060.01117.52
8.4.120.0110.00920.29
8.4.110.0120.00722.33
8.4.100.0140.00617.72
8.4.90.0080.00418.51
8.4.80.0060.00218.67
8.4.70.0060.00218.76
8.4.60.0110.00918.52
8.4.50.0030.00717.65
8.4.40.0170.00319.29
8.4.30.0070.00720.43
8.4.20.0130.01019.68
8.4.10.0120.00423.62
8.3.280.0100.01318.26
8.3.270.0080.01116.22
8.3.260.0110.00916.47
8.3.250.0130.00618.67
8.3.240.0100.00916.73
8.3.230.0130.00616.59
8.3.220.0060.00418.51
8.3.210.0100.00818.34
8.3.200.0050.00416.40
8.3.190.0120.00718.74
8.3.180.0100.01018.32
8.3.170.0150.00318.96
8.3.160.0120.00918.29
8.3.150.0060.00318.77
8.3.140.0080.00016.69
8.3.130.0040.00416.44
8.3.120.0110.00718.76
8.3.110.0060.00320.94
8.3.100.0040.00424.06
8.3.90.0000.00826.77
8.3.80.0030.00618.55
8.3.70.0040.01116.58
8.3.60.0030.01016.63
8.3.50.0060.01318.22
8.3.40.0110.00420.16
8.3.30.0120.00318.67
8.3.20.0070.00024.18
8.3.10.0060.00324.66
8.3.00.0040.00426.16
8.2.290.0130.00520.54
8.2.280.0140.00618.41
8.2.270.0000.01017.00
8.2.260.0040.00420.25
8.2.250.0000.00816.69
8.2.240.0030.00616.96
8.2.230.0040.00422.58
8.2.220.0060.00337.54
8.2.210.0050.00326.77
8.2.200.0040.00416.24
8.2.190.0110.00416.75
8.2.180.0090.00925.92
8.2.170.0110.00418.74
8.2.160.0100.00322.96
8.2.150.0050.00225.66
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00426.16
8.2.110.0070.00320.51
8.2.100.0060.00617.59
8.2.90.0000.00717.78
8.2.80.0000.00817.97
8.2.70.0080.00017.38
8.2.60.0030.00617.80
8.2.50.0060.00318.07
8.2.40.0080.00019.85
8.2.30.0070.00018.11
8.2.20.0000.00719.12
8.2.10.0000.00717.99
8.2.00.0000.00719.05
8.1.330.0110.00823.78
8.1.320.0120.00722.05
8.1.310.0050.00318.69
8.1.300.0090.00919.91
8.1.290.0060.00330.84
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.98
8.1.230.0060.00622.63
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0060.00317.10
8.1.180.0040.00418.10
8.1.170.0000.00818.36
8.1.160.0040.00418.87
8.1.150.0000.00818.60
8.1.140.0000.00717.38
8.1.130.0090.00018.55
8.1.120.0090.00318.45
8.1.110.0080.00518.61
8.1.100.0080.00418.68
8.1.90.0140.00018.55
8.1.80.0130.00318.54
8.1.70.0070.00918.74
8.1.60.0110.00718.75
8.1.50.0060.01218.61
8.1.40.0130.00418.79
8.1.30.0130.00518.66
8.1.20.0050.01118.83
8.1.10.0150.00418.64
8.1.00.0140.00418.58
8.0.300.0070.00019.94
8.0.290.0000.00816.58
8.0.280.0000.00718.27
8.0.270.0000.00717.23
8.0.260.0100.00717.93
8.0.250.0100.00517.90
8.0.240.0140.00017.90
8.0.230.0080.00917.88
8.0.220.0140.00017.91
8.0.210.0140.00317.85
8.0.200.0110.00317.97
8.0.190.0100.00318.06
8.0.180.0110.00417.85
8.0.170.0100.00317.90
8.0.160.0090.00917.98
8.0.150.0080.00717.77
8.0.140.0040.01117.75
8.0.130.0100.00817.96
8.0.120.0140.00317.95
8.0.110.0100.00717.88
8.0.100.0090.00617.83
8.0.90.0100.00717.81
8.0.80.0160.00017.92
8.0.70.0120.00517.92
8.0.60.0130.00317.98
8.0.50.0140.00017.93
8.0.30.0060.01017.99
8.0.20.0080.00818.02
8.0.10.0070.00717.93

preferences:
29.81 ms | 403 KiB | 5 Q