3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'blue_dog_1' => 2 ], [ 'red_dog_1' => 4 ], [ 'red_dog_2' => 6 ] ]; print_r(array_reduce($array, 'array_merge', []));

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)
8.3.70.0110.00418.28
8.3.60.0040.01116.38
8.3.50.0170.00722.06
8.3.40.0150.00018.48
8.3.30.0070.00718.47
8.3.20.0060.00318.61
8.3.10.0080.00021.78
8.3.00.0040.00421.60
8.2.190.0040.01416.58
8.2.180.0120.00916.32
8.2.170.0030.01722.96
8.2.160.0070.00722.96
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00422.08
8.2.120.0040.00426.35
8.2.110.0040.00420.58
8.2.100.0040.00717.72
8.2.90.0000.00817.63
8.2.80.0060.00317.97
8.2.70.0060.00317.80
8.2.60.0070.00019.03
8.2.50.0030.00518.10
8.2.40.0040.00420.50
8.2.30.0030.00521.03
8.2.20.0070.00018.01
8.2.10.0060.00318.05
8.2.00.0050.00217.59
8.1.280.0200.00025.92
8.1.270.0080.00023.80
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0060.00322.62
8.1.230.0100.00017.70
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0060.00317.34
8.1.190.0040.00417.10
8.1.180.0030.00519.91
8.1.170.0040.00418.50
8.1.160.0000.00722.18
8.1.150.0000.00718.82
8.1.140.0000.00819.46
8.1.130.0040.00417.55
8.1.120.0030.00317.27
8.1.110.0040.00417.40
8.1.100.0000.00717.31
8.1.90.0020.00517.37
8.1.80.0000.00717.28
8.1.70.0030.00617.31
8.1.60.0040.00417.47
8.1.50.0050.00317.41
8.1.40.0040.00417.27
8.1.30.0040.00417.52
8.1.20.0000.00717.55
8.1.10.0070.00017.37
8.1.00.0030.00617.22
8.0.300.0040.00418.77
8.0.290.0110.00016.58
8.0.280.0030.00318.32
8.0.270.0030.00317.10
8.0.260.0030.00317.18
8.0.250.0080.00016.80
8.0.240.0030.00316.94
8.0.230.0040.00416.81
8.0.220.0040.00416.72
8.0.210.0040.00416.83
8.0.200.0060.00016.78
8.0.190.0030.00616.93
8.0.180.0000.00716.85
8.0.170.0000.00716.79
8.0.160.0000.00716.79
8.0.150.0070.00016.75
8.0.140.0040.00416.75
8.0.130.0070.00013.22
8.0.120.0050.00316.79
8.0.110.0080.00016.78
8.0.100.0040.00416.73
8.0.90.0050.00316.78
8.0.80.0120.00316.77
8.0.70.0070.00016.88
8.0.60.0000.00816.85
8.0.50.0000.00816.64
8.0.30.0080.01016.93
8.0.20.0140.00917.28
8.0.10.0230.01216.83
8.0.00.0150.00616.69
7.4.330.0000.00515.55
7.4.320.0030.00316.52
7.4.300.0060.00316.44
7.4.290.0070.00016.44
7.4.280.0040.00416.41
7.4.270.0000.00816.54
7.4.260.0080.00016.35
7.4.250.0050.00316.41
7.4.240.0030.00316.42
7.4.230.0070.00016.45
7.4.220.0110.01516.44
7.4.210.0140.00416.50
7.4.200.0070.00016.23
7.4.160.0090.00616.50
7.4.150.0110.01316.89
7.4.140.0100.01117.48
7.4.130.0130.01016.43
7.4.120.0130.00816.34
7.4.110.0130.01016.26
7.4.100.0100.01616.47
7.4.90.0090.01916.38
7.4.80.0120.01616.38
7.4.70.0150.00616.34
7.4.60.0120.00916.36
7.4.50.0120.00816.26
7.4.40.0110.01016.38
7.4.30.0120.01016.36
7.4.20.0170.00716.31
7.4.10.0090.01416.26
7.4.00.0050.01215.63
7.3.330.0000.00612.82
7.3.320.0000.00513.00
7.3.310.0000.00716.01
7.3.300.0060.00016.06
7.3.290.0070.00716.20
7.3.280.0080.00816.14
7.3.270.0180.00616.76
7.3.260.0130.00816.22
7.3.250.0110.00916.17
7.3.240.0100.01116.18
7.3.230.0100.01216.25
7.3.220.0310.00016.07
7.3.210.0140.01116.12
7.3.200.0140.01217.78
7.3.190.0190.00816.11
7.3.180.0120.00916.21
7.3.170.0070.01916.05
7.3.160.0150.00916.16
7.3.150.0230.00316.08
7.3.140.0200.01016.13
7.3.130.0220.00416.13
7.3.120.0120.01816.13
7.3.110.0200.00716.07
7.3.100.0260.00715.98
7.3.90.0200.01116.32
7.3.80.0130.01316.10
7.3.70.0050.01816.20
7.3.60.0120.00816.33
7.3.50.0210.00716.26
7.3.40.0190.00916.26
7.3.30.0160.00816.19
7.3.20.0160.01316.28
7.3.10.0100.00916.33
7.3.00.0100.01016.30
7.2.340.0230.00616.11
7.2.330.0150.00816.30
7.2.320.0170.00716.11
7.2.310.0110.01216.12
7.2.300.0100.01216.32
7.2.290.0180.00416.32
7.2.280.0210.00416.08
7.2.270.0240.00016.13
7.2.260.0250.00916.07
7.2.250.0170.01016.18
7.2.240.0150.01516.05
7.2.230.0180.01816.05
7.2.220.0140.01716.13
7.2.210.0140.01116.16
7.2.200.0130.01716.21
7.2.190.0230.01916.30
7.2.180.0130.01616.29
7.2.170.0200.00916.37
7.2.160.0160.01516.29
7.2.150.0170.01416.27
7.2.140.0140.01516.37
7.2.130.0070.01116.50
7.2.120.0110.00816.48
7.2.110.0110.00616.45
7.2.100.0130.00616.41
7.2.90.0140.00516.58
7.2.80.0140.00516.63
7.2.70.0090.00816.64
7.2.60.0120.00816.53
7.2.50.0120.00916.49
7.2.40.0100.00816.54
7.2.30.0100.00716.56
7.2.20.0120.01016.57
7.2.10.0080.01116.43
7.2.00.0100.00717.16
7.1.330.0240.00315.49
7.1.320.0130.01015.54
7.1.310.0160.01215.60
7.1.300.0150.00915.39
7.1.290.0290.00415.54
7.1.280.0150.00815.50
7.1.270.0200.00815.43
7.1.260.0120.01315.47
7.1.250.0090.00815.53
7.1.240.0210.00315.48
7.1.230.0170.00715.39
7.1.220.0270.00815.47
7.1.210.0210.00315.44
7.1.200.0150.00715.67
7.1.190.0270.00615.45
7.1.180.0160.01315.33
7.1.170.0260.00315.39
7.1.160.0370.00715.38
7.1.150.0170.00715.41
7.1.140.0150.01515.39
7.1.130.0200.00815.48
7.1.120.0130.02015.48
7.1.110.0320.00015.30
7.1.100.0200.00815.29
7.1.90.0250.00415.37
7.1.80.0480.00615.44
7.1.70.0060.01116.16
7.1.60.0130.00716.44
7.1.50.0150.01115.39
7.1.40.0160.01015.41
7.1.30.0200.00715.43
7.1.20.0120.01615.27
7.1.10.0220.00815.34
7.1.00.0190.04518.94
7.0.330.0440.01015.21
7.0.320.0240.00414.99
7.0.310.0260.00315.14
7.0.300.0160.01015.01
7.0.290.0280.00614.98
7.0.280.0090.01915.09
7.0.270.0190.00815.07
7.0.260.0150.01515.08
7.0.250.0250.00815.11
7.0.240.0160.00915.20
7.0.230.0160.01315.22
7.0.220.0110.01115.15
7.0.210.0150.01115.14
7.0.200.0210.01314.89
7.0.190.0170.01015.10
7.0.180.0140.01415.22
7.0.170.0210.01015.35
7.0.160.0310.00315.11
7.0.150.0160.01115.05
7.0.140.0130.01315.17
7.0.130.0180.00615.14
7.0.120.0210.03617.71
7.0.110.0280.03817.71
7.0.100.0260.03117.64
7.0.90.0270.04117.66
7.0.80.0270.04717.71
7.0.70.0290.02917.68
7.0.60.0290.04217.68
7.0.50.0310.03017.62
7.0.40.0300.04617.73
7.0.30.0260.03217.68
7.0.20.0270.03117.67
7.0.10.0270.03217.67
7.0.00.0260.03517.74
5.6.400.0190.01215.64
5.6.390.0200.00615.64
5.6.380.0190.01015.64
5.6.370.0210.00615.60
5.6.360.0030.02315.78
5.6.350.0240.00415.71
5.6.340.0140.01715.75
5.6.330.0310.00515.73
5.6.320.0190.01515.71
5.6.310.0260.00315.64
5.6.300.0170.01415.64
5.6.290.0250.00715.75
5.6.280.0110.01415.74
5.6.270.0160.03618.29
5.6.260.0190.04118.18
5.6.250.0090.04118.40
5.6.240.0090.04618.26
5.6.230.0070.03718.32
5.6.220.0140.03118.33
5.6.210.0130.03718.37
5.6.200.0130.03518.40
5.6.190.0140.04118.44
5.6.180.0140.03418.45
5.6.170.0140.03618.31
5.6.160.0140.03618.43
5.6.150.0100.03918.37
5.6.140.0160.03318.44
5.6.130.0140.03418.32
5.6.120.0160.03518.34
5.6.110.0130.03718.31
5.6.100.0170.03118.39
5.6.90.0170.02818.29
5.6.80.0170.03718.02
5.6.70.0150.03217.97
5.6.60.0150.03517.96
5.6.50.0170.03218.03
5.6.40.0100.03717.98
5.6.30.0120.03818.01
5.6.20.0180.03318.03
5.6.10.0160.03617.90
5.6.00.0140.03618.03

preferences:
30.96 ms | 401 KiB | 5 Q