3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; $b = ["item_data"=>[1,2,3]]; $b = array_merge($a,$b); var_dump($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)
8.3.60.0100.01016.38
8.3.50.0080.00822.88
8.3.40.0040.01118.53
8.3.30.0030.01018.79
8.3.20.0070.00020.21
8.3.10.0000.00723.66
8.3.00.0080.00019.13
8.2.180.0100.00616.32
8.2.170.0130.01022.96
8.2.160.0100.00320.36
8.2.150.0000.00824.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0050.00320.83
8.2.110.0060.00322.32
8.2.100.0080.00318.03
8.2.90.0040.00419.04
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0000.00917.80
8.2.50.0040.00418.07
8.2.40.0000.00819.95
8.2.30.0000.00817.96
8.2.20.0000.00717.49
8.2.10.0030.00618.11
8.2.00.0040.00417.58
8.1.280.0170.00325.92
8.1.270.0030.00624.04
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00023.91
8.1.230.0100.00019.10
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.00
8.1.190.0000.00817.00
8.1.180.0030.00518.10
8.1.170.0070.00418.48
8.1.160.0030.00521.87
8.1.150.0000.00718.80
8.1.140.0070.00017.41
8.1.130.0030.00317.73
8.1.120.0030.00317.38
8.1.110.0080.00017.36
8.1.100.0030.00517.36
8.1.90.0040.00417.32
8.1.80.0050.00317.47
8.1.70.0000.00717.40
8.1.60.0090.00017.57
8.1.50.0050.00317.37
8.1.40.0000.00817.43
8.1.30.0000.00817.53
8.1.20.0000.00717.42
8.1.10.0040.00417.31
8.1.00.0000.00717.23
8.0.300.0050.00218.77
8.0.290.0070.00016.75
8.0.280.0070.00018.43
8.0.270.0040.00417.18
8.0.260.0050.00217.19
8.0.250.0030.00316.93
8.0.240.0070.00016.87
8.0.230.0030.00316.89
8.0.220.0030.00316.71
8.0.210.0040.00416.72
8.0.200.0000.00616.96
8.0.190.0040.00416.93
8.0.180.0030.00316.86
8.0.170.0080.00016.88
8.0.160.0050.00216.70
8.0.150.0040.00316.71
8.0.140.0040.00416.77
8.0.130.0030.00313.19
8.0.120.0040.00416.80
8.0.110.0040.00416.85
8.0.100.0040.00416.70
8.0.90.0070.00016.73
8.0.80.0120.00316.81
8.0.70.0040.00416.89
8.0.60.0000.00816.82
8.0.50.0040.00416.87
8.0.30.0160.00716.86
8.0.20.0080.01117.40
8.0.10.0000.00716.73
8.0.00.0100.01016.59
7.4.330.0050.00015.00
7.4.320.0030.00316.29
7.4.300.0000.00616.50
7.4.290.0030.00316.38
7.4.280.0040.00416.36
7.4.270.0070.00016.36
7.4.260.0000.00816.44
7.4.250.0000.00816.38
7.4.240.0050.00216.44
7.4.230.0030.00316.31
7.4.220.0040.01816.35
7.4.210.0090.00616.51
7.4.200.0000.00816.32
7.4.160.0080.00816.22
7.4.150.0070.01017.40
7.4.140.0120.00717.86
7.4.130.0070.00916.36
7.4.120.0120.00516.51
7.4.110.0030.01616.38
7.4.100.0070.01316.50
7.4.90.0100.00716.49
7.4.80.0100.01019.39
7.4.70.0190.00316.46
7.4.60.0160.00016.52
7.4.50.0000.00716.54
7.4.40.0090.01616.52
7.4.30.0070.01016.36
7.4.00.0100.00714.96
7.3.330.0050.00012.86
7.3.320.0000.00612.87
7.3.310.0050.00216.16
7.3.300.0070.00016.14
7.3.290.0110.00316.12
7.3.280.0090.00816.13
7.3.270.0110.00717.40
7.3.260.0100.01016.35
7.3.250.0140.00316.32
7.3.240.0130.00316.36
7.3.230.0080.00816.39
7.3.210.0100.00716.29
7.3.200.0080.00819.39
7.3.190.0140.00716.33
7.3.180.0060.00916.12
7.3.170.0120.00616.27
7.3.160.0040.01116.09
7.3.120.0070.01014.94
7.3.110.0080.00814.55
7.3.100.0000.01514.44
7.3.90.0000.01414.48
7.3.80.0080.00614.83
7.3.70.0030.01414.58
7.3.60.0050.00514.45
7.3.50.0070.00714.37
7.3.40.0040.00814.58
7.3.30.0070.00314.71
7.3.20.0070.01016.37
7.3.10.0080.00616.55
7.3.00.0060.00616.31
7.2.330.0150.00816.27
7.2.320.0100.00716.59
7.2.310.0120.01216.61
7.2.300.0100.00616.54
7.2.290.0120.00616.70
7.2.240.0080.00414.66
7.2.230.0040.00814.86
7.2.220.0080.00414.95
7.2.210.0060.00914.61
7.2.200.0100.00314.99
7.2.190.0100.00314.96
7.2.180.0040.00714.99
7.2.170.0030.01014.98
7.2.160.0030.01414.54
7.2.150.0030.01316.66
7.2.140.0070.00716.81
7.2.130.0000.00916.99
7.2.120.0070.01016.76
7.2.110.0000.01116.60
7.2.100.0120.00316.77
7.2.90.0090.00616.65
7.2.80.0000.01216.80
7.2.70.0090.00616.89
7.2.60.0080.00816.91
7.2.50.0000.01016.48
7.2.40.0030.01016.64
7.2.30.0060.00816.72
7.2.20.0030.00916.73
7.2.10.0070.00716.95
7.2.00.0100.00616.48
7.1.330.0070.00715.59
7.1.320.0070.00715.61
7.1.310.0110.00415.62
7.1.300.0000.01015.65
7.1.290.0080.00415.52
7.1.280.0090.00615.54
7.1.270.0030.00715.46
7.1.260.0040.01115.72
7.1.250.0040.00815.53
7.1.200.0060.00615.72
7.1.70.0070.00317.05
7.1.60.0160.00619.40
7.1.50.0120.00916.79
7.1.00.0100.06722.43
7.0.200.0030.00716.82
7.0.140.0130.06321.92
7.0.60.0130.08019.90
7.0.50.0130.07317.90
7.0.40.0100.06720.07
7.0.30.0500.07320.16
7.0.20.0400.06020.18
7.0.10.0070.04320.09
7.0.00.0000.07020.16
5.6.280.0100.06320.85
5.6.210.0100.07020.44
5.6.200.0200.07718.12
5.6.190.0070.08020.38
5.6.180.2030.03720.27
5.6.170.0230.08020.41
5.6.160.0030.07320.33
5.6.150.0130.07718.21
5.6.140.0070.05718.21
5.6.130.0000.04318.10
5.6.120.0100.07721.06
5.6.110.0100.04021.00
5.6.100.0070.06321.08
5.6.90.0030.04720.99
5.6.80.0200.07320.52
5.6.70.4500.04320.40
5.5.350.0200.04020.34
5.5.340.0170.06717.98
5.5.330.0200.06720.21
5.5.320.0400.04020.41
5.5.310.0270.07720.31
5.5.300.0070.03717.95
5.5.290.0100.07717.95
5.5.280.0170.07020.89
5.5.270.0030.04020.83
5.5.260.0130.05320.96
5.5.250.0130.07320.54
5.5.240.0370.05320.14
5.4.450.0270.05019.58
5.4.440.0700.04319.11
5.4.430.0400.04319.09
5.4.420.0330.04019.40
5.4.410.0330.04319.11
5.4.400.0570.03018.94
5.4.390.0200.04719.13
5.4.380.0230.06018.68
5.4.370.0330.05318.78
5.4.360.0270.05718.64
5.4.350.0400.05318.73
5.4.340.0370.06318.73
5.4.320.0070.03512.45
5.4.310.0060.03812.45
5.4.300.0050.03812.45
5.4.290.0030.04712.45
5.4.280.0030.03812.35
5.4.270.0060.03612.35
5.4.260.0070.03612.34
5.4.250.0110.03912.34
5.4.240.0090.03412.34
5.4.230.0050.03812.34
5.4.220.0060.03612.34
5.4.210.0040.03812.34
5.4.200.0060.03712.34
5.4.190.0070.03812.33
5.4.180.0090.03612.34
5.4.170.0060.03612.34
5.4.160.0040.03812.34
5.4.150.0060.03912.34
5.4.140.0060.03712.02
5.4.130.0040.03712.01
5.4.120.0100.03111.96
5.4.110.0090.03211.96
5.4.100.0080.03311.96
5.4.90.0090.04711.96
5.4.80.0050.03811.96
5.4.70.0070.03511.96
5.4.60.0080.03211.96
5.4.50.0080.03211.96
5.4.40.0040.03511.95
5.4.30.0090.03711.95
5.4.20.0080.03611.95
5.4.10.0080.03211.95
5.4.00.0060.03511.43
5.3.290.0040.04112.80
5.3.280.0080.03912.71
5.3.270.0050.04012.72
5.3.260.0080.03712.72
5.3.250.0030.04012.72
5.3.240.0050.03912.72
5.3.230.0080.03712.70
5.3.220.0060.03712.68
5.3.210.0070.04112.68
5.3.200.0060.04012.68
5.3.190.0030.04012.68
5.3.180.0080.04112.67
5.3.170.0070.04012.67
5.3.160.0080.03712.67
5.3.150.0070.03712.67
5.3.140.0090.03412.66
5.3.130.0090.04012.66
5.3.120.0070.03812.66
5.3.110.0040.04312.65
5.3.100.0070.03612.12
5.3.90.0090.05512.09
5.3.80.0030.04312.07
5.3.70.0070.03912.08
5.3.60.0050.03812.07
5.3.50.0100.03512.00
5.3.40.0070.03512.00
5.3.30.0100.03011.95
5.3.20.0050.03611.72
5.3.10.0060.03411.70
5.3.00.0040.03711.68
5.2.170.0030.0329.18
5.2.160.0040.0329.18
5.2.150.0040.0319.18
5.2.140.0060.0319.18
5.2.130.0030.0309.14
5.2.120.0050.0289.15
5.2.110.0100.0279.14
5.2.100.0050.0289.14
5.2.90.0020.0349.14
5.2.80.0100.0279.14
5.2.70.0050.0309.14
5.2.60.0050.0319.09
5.2.50.0050.0309.05
5.2.40.0060.0279.03
5.2.30.0030.0319.01
5.2.20.0050.0289.00
5.2.10.0050.0288.93
5.2.00.0050.0318.78
5.1.60.0020.0278.07
5.1.50.0070.0228.07
5.1.40.0060.0238.05
5.1.30.0030.0308.40
5.1.20.0060.0268.42
5.1.10.0040.0278.14
5.1.00.0100.0218.14
5.0.50.0060.0196.62
5.0.40.0070.0226.47
5.0.30.0030.0366.29
5.0.20.0030.0236.26
5.0.10.0020.0216.23
5.0.00.0020.0326.23
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0050.0134.76
4.4.60.0030.0154.76
4.4.50.0000.0184.77
4.4.40.0040.0244.71
4.4.30.0030.0154.75
4.4.20.0020.0164.85
4.4.10.0030.0154.85
4.4.00.0020.0264.76
4.3.110.0040.0144.67
4.3.100.0030.0154.66
4.3.90.0040.0134.64
4.3.80.0070.0234.58
4.3.70.0030.0204.63
4.3.60.0040.0164.63
4.3.50.0060.0144.63
4.3.40.0040.0264.54
4.3.30.0020.0163.29
4.3.20.0030.0153.26
4.3.10.0030.0163.21
4.3.00.0030.01715.63

preferences:
41.29 ms | 401 KiB | 5 Q