3v4l.org

run code in 300+ PHP versions simultaneously
<?php $global = [ 'foo' => 1, ]; $default = [ 'foo' => 0, ]; var_export( array_merge_recursive( $default, $global ) );

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)
8.3.70.0140.00016.58
8.3.60.0070.00718.27
8.3.50.0100.01318.11
8.3.40.0140.00718.74
8.3.30.0040.01118.59
8.3.20.0040.00424.18
8.3.10.0030.00524.66
8.3.00.0070.00026.16
8.2.180.0070.00725.92
8.2.170.0150.00018.71
8.2.160.0100.00322.96
8.2.150.0030.00325.66
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0070.00020.82
8.2.110.0080.00022.07
8.2.100.0070.00417.78
8.2.90.0000.00817.63
8.2.80.0060.00318.79
8.2.70.0030.00817.43
8.2.60.0040.00418.09
8.2.50.0030.00618.10
8.2.40.0080.00020.89
8.2.30.0080.00019.13
8.2.20.0000.00718.09
8.2.10.0050.00219.20
8.2.00.0040.00419.17
8.1.280.0100.00325.92
8.1.270.0050.00323.99
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0000.00922.16
8.1.230.0040.00717.76
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0080.00317.23
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0000.00818.65
8.1.160.0000.00820.61
8.1.150.0040.00418.88
8.1.140.0000.00718.88
8.1.130.0030.00317.38
8.1.120.0080.00017.38
8.1.110.0070.00017.25
8.1.100.0040.00417.42
8.1.90.0030.00317.32
8.1.80.0000.01117.38
8.1.70.0030.00617.46
8.1.60.0060.00317.58
8.1.50.0040.00417.46
8.1.40.0000.00817.42
8.1.30.0030.00517.59
8.1.20.0000.00817.43
8.1.10.0060.00317.34
8.1.00.0000.00817.27
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.41
8.0.270.0030.00316.62
8.0.260.0030.00316.64
8.0.250.0030.00316.86
8.0.240.0040.00416.91
8.0.230.0000.00716.86
8.0.220.0030.00316.69
8.0.210.0080.00016.86
8.0.200.0050.00316.85
8.0.190.0000.00716.85
8.0.180.0000.00716.83
8.0.170.0030.00616.80
8.0.160.0050.00316.84
8.0.150.0070.00016.68
8.0.140.0040.00416.78
8.0.130.0050.00013.15
8.0.120.0030.00616.79
8.0.110.0040.00416.78
8.0.100.0000.00816.70
8.0.90.0000.00716.70
8.0.80.0040.01116.73
8.0.70.0040.00416.86
8.0.60.0000.00716.71
8.0.50.0070.00016.67
8.0.30.0110.00816.76
8.0.20.0080.00816.83
8.0.10.0070.00716.96
8.0.00.0080.00816.87
7.4.330.0040.00015.55
7.4.320.0060.00016.58
7.4.300.0060.00016.35
7.4.290.0080.00016.48
7.4.280.0040.00416.44
7.4.270.0000.00816.54
7.4.260.0020.00313.16
7.4.250.0050.00316.48
7.4.240.0040.00416.45
7.4.230.0000.00716.53
7.4.220.0030.00316.39
7.4.210.0070.00916.40
7.4.200.0040.00416.51
7.4.160.0060.00916.59
7.4.150.0110.00416.39
7.4.140.0000.01416.30
7.4.130.0040.01116.36
7.4.120.0110.00316.26
7.4.110.0090.00616.43
7.4.100.0070.00716.54
7.4.90.0140.00016.40
7.4.80.0070.00716.29
7.4.70.0070.00716.26
7.4.60.0080.00616.35
7.4.50.0110.00316.14
7.4.40.0090.00616.19
7.4.30.0100.00416.42
7.4.20.0060.00816.16
7.4.10.0040.01116.49
7.4.00.0000.01316.23
7.3.330.0070.00015.99
7.3.320.0050.00013.00
7.3.310.0000.00715.89
7.3.300.0040.00416.17
7.3.290.0020.00516.12
7.3.280.0100.00316.13
7.3.270.0030.01016.12
7.3.260.0100.00616.05
7.3.250.0070.00716.13
7.3.240.0030.01116.13
7.3.230.0100.01016.11
7.3.220.0080.00516.04
7.3.210.0000.01316.10
7.3.200.0070.00716.07
7.3.190.0030.01016.09
7.3.180.0030.01016.05
7.3.170.0090.00616.11
7.3.160.0070.00716.10
7.3.150.0070.00716.05
7.3.140.0070.00716.16
7.3.130.0060.00816.08
7.3.120.0030.01016.01
7.3.110.0130.00015.98
7.3.100.0100.00716.02
7.3.90.0070.00716.28
7.3.80.0130.00016.10
7.3.70.0040.00916.28
7.3.60.0030.01016.34
7.3.50.0040.01116.20
7.3.40.0030.01116.18
7.3.30.0060.00616.16
7.3.20.0100.00316.23
7.3.10.0030.01016.08
7.3.00.0000.01416.24

preferences:
76.74 ms | 401 KiB | 5 Q