3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array( 'a' => 1, 'b' => 2, ); $array2 = array( 'b' => 22, 'c' => 3, ); var_dump(array_merge($array1, $array2)); var_dump($array1 + $array2);

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)
8.3.60.0140.00418.15
8.3.50.0220.00522.92
8.3.40.0040.01118.54
8.3.30.0070.01318.88
8.3.20.0040.00420.25
8.3.10.0080.00023.71
8.3.00.0000.00819.26
8.2.180.0070.01416.75
8.2.170.0100.01018.91
8.2.160.0000.01322.96
8.2.150.0060.00324.18
8.2.140.0050.01024.66
8.2.130.0070.00026.16
8.2.120.0090.00921.00
8.2.110.0070.00421.96
8.2.100.0070.00417.78
8.2.90.0000.00817.84
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0060.00317.80
8.2.50.0030.00618.07
8.2.40.0000.00819.95
8.2.30.0020.00518.05
8.2.20.0040.00417.71
8.2.10.0050.00217.89
8.2.00.0000.00817.54
8.1.280.0000.02225.92
8.1.270.0030.00624.02
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0070.00322.52
8.1.230.0120.00020.97
8.1.220.0050.00317.74
8.1.210.0030.00518.86
8.1.200.0070.00317.35
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0000.00818.52
8.1.160.0040.00421.92
8.1.150.0040.00418.66
8.1.140.0040.00417.33
8.1.130.0000.00717.87
8.1.120.0000.00717.32
8.1.110.0050.00317.43
8.1.100.0070.00017.27
8.1.90.0030.00617.39
8.1.80.0000.00717.36
8.1.70.0070.00017.24
8.1.60.0080.00017.50
8.1.50.0000.00817.43
8.1.40.0000.00717.51
8.1.30.0040.00417.55
8.1.20.0040.00417.53
8.1.10.0040.00417.45
8.1.00.0050.00217.26
8.0.300.0040.00419.91
8.0.290.0000.00816.58
8.0.280.0040.00418.36
8.0.270.0070.00017.17
8.0.260.0030.00317.09
8.0.250.0040.00416.78
8.0.240.0000.00716.92
8.0.230.0000.00716.90
8.0.220.0030.00316.88
8.0.210.0070.00016.89
8.0.200.0040.00416.87
8.0.190.0060.00316.89
8.0.180.0030.00316.87
8.0.170.0040.00416.88
8.0.160.0070.00016.70
8.0.150.0070.00016.78
8.0.140.0070.00016.72
8.0.130.0080.00013.34
8.0.120.0030.00616.77
8.0.110.0000.00716.77
8.0.100.0000.00716.87
8.0.90.0000.00716.92
8.0.80.0120.00416.90
8.0.70.0050.00316.79
8.0.60.0040.00416.93
8.0.50.0040.00416.74
8.0.30.0150.00816.99
8.0.20.0070.01317.40
8.0.10.0050.00517.05
8.0.00.0140.00716.68
7.4.330.0000.00615.00
7.4.320.0040.00416.45
7.4.300.0070.00016.51
7.4.290.0070.00016.50
7.4.280.0050.00216.52
7.4.270.0070.00016.50
7.4.260.0070.00016.50
7.4.250.0000.00816.28
7.4.240.0050.00216.55
7.4.230.0030.00316.62
7.4.220.0200.00716.55
7.4.210.0030.01016.45
7.4.200.0040.00416.32
7.4.160.0080.00816.42
7.4.150.0120.00617.40
7.4.140.0110.01117.86
7.4.130.0090.00916.41
7.4.120.0100.00616.37
7.4.110.0160.00016.46
7.4.100.0090.00916.52
7.4.90.0120.00616.38
7.4.80.0100.00919.39
7.4.70.0060.01216.43
7.4.60.0170.00016.62
7.4.50.0040.00416.29
7.4.40.0110.00516.27
7.4.30.0110.00616.45
7.4.10.0060.01314.78
7.4.00.0070.00714.85
7.3.330.0030.00313.09
7.3.320.0020.00213.03
7.3.310.0040.00316.32
7.3.300.0030.00316.18
7.3.290.0140.00316.25
7.3.280.0070.00916.22
7.3.270.0080.00917.40
7.3.260.0090.00916.34
7.3.240.0080.00816.16
7.3.230.0120.00616.39
7.3.210.0120.00816.66
7.3.200.0190.02519.39
7.3.190.0120.00916.15
7.3.180.0140.00316.11
7.3.170.0080.00916.36
7.3.160.0040.01416.35
7.3.130.0060.01214.59
7.3.120.0110.00714.82
7.3.110.0050.01014.73
7.3.100.0030.01214.77
7.3.90.0060.00614.70
7.3.80.0120.00314.83
7.3.70.0080.00414.52
7.3.60.0040.01114.88
7.3.50.0110.00014.66
7.3.40.0060.00614.72
7.3.30.0030.01014.73
7.3.20.0050.00516.77
7.3.10.0030.01016.69
7.3.00.0060.00616.56
7.2.330.0090.01216.20
7.2.320.0090.00916.39
7.2.310.0140.00316.30
7.2.300.0100.00716.57
7.2.290.0110.00616.30
7.2.260.0030.01314.80
7.2.250.0090.00614.87
7.2.240.0070.00714.77
7.2.230.0000.01315.13
7.2.220.0030.00915.14
7.2.210.0030.01014.69
7.2.200.0040.01114.84
7.2.190.0030.01314.99
7.2.180.0070.01014.66
7.2.170.0060.00915.02
7.2.160.0000.01214.95
7.2.150.0040.01216.54
7.2.140.0070.00716.99
7.2.130.0080.00616.68
7.2.120.0010.01316.71
7.2.110.0090.00716.75
7.2.100.0050.00816.65
7.2.90.0110.00516.80
7.2.80.0020.00916.63
7.2.70.0030.01016.55
7.2.60.0050.00716.77
7.2.50.0020.01016.60
7.2.40.0020.01016.76
7.2.30.0080.00616.85
7.2.20.0050.00816.83
7.2.10.0080.00616.72
7.2.00.0010.01116.71
7.1.330.0070.01015.73
7.1.320.0060.01015.72
7.1.310.0040.00415.89
7.1.300.0030.00615.89
7.1.290.0110.00415.84
7.1.280.0090.00615.85
7.1.270.0070.00415.52
7.1.260.0030.01415.95
7.1.250.0110.00315.77
7.1.240.0030.01015.64
7.1.230.0050.01115.69
7.1.220.0060.00715.73
7.1.210.0040.00915.66
7.1.200.0080.00415.66
7.1.190.0000.01315.65
7.1.180.0070.00515.61
7.1.170.0080.00315.66
7.1.160.0060.00515.64
7.1.150.0050.00915.75
7.1.140.0060.00615.58
7.1.130.0060.00715.48
7.1.120.0050.00915.62
7.1.110.0070.00215.65
7.1.100.0030.01116.47
7.1.90.0050.01015.75
7.1.80.0020.01115.81
7.1.70.0070.00516.21
7.1.60.0080.00816.98
7.1.50.0020.01316.19
7.1.40.0050.00715.74
7.1.30.0070.00515.80
7.1.20.0070.00615.74
7.1.10.0090.00315.62
7.1.00.0040.03017.94
7.0.330.0070.00815.35
7.0.320.0070.00715.28
7.0.310.0050.00715.60
7.0.300.0050.00915.17
7.0.290.0050.00515.28
7.0.280.0040.00415.45
7.0.270.0090.00315.33
7.0.260.0050.00615.41
7.0.250.0030.01015.45
7.0.240.0020.00915.37
7.0.230.0080.00315.52
7.0.220.0050.00615.27
7.0.210.0060.00715.46
7.0.200.0030.00915.09
7.0.190.0000.00815.32
7.0.180.0030.00915.32
7.0.170.0060.00815.39
7.0.160.0030.01015.35
7.0.150.0040.00915.24
7.0.140.0080.02517.61
7.0.130.0040.01115.49
7.0.120.0030.01115.44
7.0.110.0020.01215.45
7.0.100.0070.00615.24
7.0.90.0040.00615.23
7.0.80.0070.00515.41
7.0.70.0090.00515.44
7.0.60.0060.03016.95
7.0.50.0050.02416.21
7.0.40.0060.01715.64
7.0.30.0140.01915.69
7.0.20.0120.03515.53
7.0.10.0060.03515.67
7.0.00.0040.02415.62
5.6.400.0070.00714.30
5.6.390.0000.01914.29
5.6.380.0060.00814.10
5.6.370.0050.00914.22
5.6.360.0030.01114.13
5.6.350.0020.01214.28
5.6.340.0050.01114.19
5.6.330.0070.00714.03
5.6.320.0070.00713.92
5.6.310.0110.00214.21
5.6.300.0110.00314.35
5.6.290.0050.00914.16
5.6.280.0080.02616.59
5.6.270.0020.01414.06
5.6.260.0050.00914.25
5.6.250.0090.00514.22
5.6.240.0050.00814.17
5.6.230.0070.00914.29
5.6.220.0020.01114.11
5.6.210.0060.03116.33
5.6.200.0080.02315.65
5.6.190.0070.02616.47
5.6.180.0090.02416.24
5.6.170.0130.02116.46
5.6.160.0070.03316.35
5.6.150.0070.03115.46
5.6.140.0060.01615.53
5.6.130.0080.01915.65
5.6.120.0090.02016.48
5.6.110.0050.03316.54
5.6.100.0070.03316.45
5.6.90.0090.02716.44
5.6.80.0040.02216.28
5.6.70.0070.00414.12
5.6.60.0050.00914.17
5.6.50.0040.01014.10
5.6.40.0070.00914.31
5.6.30.0030.00813.95
5.6.20.0060.00914.07
5.6.10.0050.00514.00
5.6.00.0080.00314.04
5.5.380.0050.00512.88
5.5.370.0040.00612.96
5.5.360.0000.00912.79
5.5.350.1440.01715.28
5.5.340.0050.02814.63
5.5.330.0070.02415.41
5.5.320.0130.01615.40
5.5.310.0110.02915.27
5.5.300.0040.02114.60
5.5.290.0040.01814.52
5.5.280.0030.02915.53
5.5.270.0020.02415.50
5.5.260.0050.02715.49
5.5.250.0070.01515.44
5.5.240.0070.02615.23
5.5.230.0070.00512.87
5.5.220.0080.00612.88
5.5.210.0020.01212.79
5.5.200.0040.00912.88
5.5.190.0020.00912.91
5.5.180.0070.00312.96
5.5.170.0090.00012.78
5.5.160.0080.00312.92
5.5.150.0070.00312.92
5.5.140.0000.01012.86
5.5.130.0040.00612.79
5.5.120.0040.00912.91
5.5.110.0100.00312.88
5.5.100.0030.00912.83
5.5.90.0070.00512.86
5.5.80.0040.00812.99
5.5.70.0040.00812.91
5.5.60.0050.00712.80
5.5.50.0030.01012.83
5.5.40.0080.00212.74
5.5.30.0040.00712.75
5.5.20.0050.00712.86
5.5.10.0030.00612.76
5.5.00.0050.00412.68
5.4.450.0340.02214.45
5.4.440.0330.02014.36
5.4.430.0300.01914.39
5.4.420.0250.01914.40
5.4.410.0190.02114.46
5.4.400.0290.01314.33
5.4.390.0270.02114.34
5.4.380.0120.01914.18
5.4.370.0050.01514.19
5.4.360.0030.02014.22
5.4.350.0060.01811.95
5.4.340.0040.01911.95
5.4.330.0040.00711.94
5.4.320.0050.01712.11
5.4.310.0050.01812.11
5.4.300.0060.01512.11
5.4.290.0040.01512.11
5.4.280.0060.01312.08
5.4.270.0050.01612.07
5.4.260.0050.01812.08
5.4.250.0060.01612.08
5.4.240.0060.01512.07
5.4.230.0030.02012.07
5.4.220.0050.01612.07
5.4.210.0010.01912.07
5.4.200.0060.01512.07
5.4.190.0040.01712.07
5.4.180.0040.01612.07
5.4.170.0040.01512.07
5.4.160.0040.01812.07
5.4.150.0040.01712.07
5.4.140.0040.01911.97
5.4.130.0030.02011.96
5.4.120.0050.01711.95
5.4.110.0070.01411.95
5.4.100.0070.01811.95
5.4.90.0050.01611.95
5.4.80.0060.01711.95
5.4.70.0070.01511.95
5.4.60.0060.01511.95
5.4.50.0050.01611.95
5.4.40.0050.02011.94
5.4.30.0050.01811.94
5.4.20.0050.01611.94
5.4.10.0070.01711.94
5.4.00.0050.01711.77
5.3.290.0030.02212.22
5.3.280.0060.01912.17
5.3.270.0070.02012.18
5.3.260.0050.02312.18
5.3.250.0020.02412.18
5.3.240.0060.01812.18
5.3.230.0080.02312.17
5.3.220.0080.02212.16
5.3.210.0060.02112.16
5.3.200.0070.02012.16
5.3.190.0040.02812.16
5.3.180.0070.02512.16
5.3.170.0070.01812.15
5.3.160.0050.02112.15
5.3.150.0070.02012.16
5.3.140.0100.01912.15
5.3.130.0050.02412.15
5.3.120.0070.02412.15
5.3.110.0090.01912.15
5.3.100.0050.02111.88
5.3.90.0060.02011.86
5.3.80.0050.02011.86
5.3.70.0080.02111.86
5.3.60.0050.01911.85
5.3.50.0050.02211.82
5.3.40.0050.02211.82
5.3.30.0050.01811.79
5.3.20.0070.02311.68
5.3.10.0040.02111.66
5.3.00.0040.02111.65
5.2.170.0080.02310.41
5.2.160.0060.02110.41
5.2.150.0060.02210.41
5.2.140.0010.02010.40
5.2.130.0060.01610.38
5.2.120.0060.01410.38
5.2.110.0010.02010.39
5.2.100.0070.01310.39
5.2.90.0040.01610.39
5.2.80.0070.01910.38
5.2.70.0010.01810.39
5.2.60.0070.01510.36
5.2.50.0030.01810.35
5.2.40.0060.01610.34
5.2.30.0050.02310.32
5.2.20.0050.02010.32
5.2.10.0020.02010.28
5.2.00.0070.01410.21
5.1.60.0030.0159.85
5.1.50.0030.0159.85
5.1.40.0040.0139.84
5.1.30.0040.01510.02
5.1.20.0040.01810.02
5.1.10.0050.0149.88
5.1.00.0040.0179.89
5.0.50.0030.0149.12
5.0.40.0030.0159.05
5.0.30.0040.0178.96
5.0.20.0040.0108.95
5.0.10.0030.0118.94
5.0.00.0010.0198.93
4.4.90.0060.0108.21
4.4.80.0040.0128.20
4.4.70.0030.0088.20
4.4.60.0020.0128.20
4.4.50.0020.0118.21
4.4.40.0020.0158.17
4.4.30.0020.0148.20
4.4.20.0030.0098.24
4.4.10.0030.0098.24
4.4.00.0020.0168.20
4.3.110.0020.0098.15
4.3.100.0020.0108.15
4.3.90.0020.0108.13
4.3.80.0050.0128.11
4.3.70.0030.0098.13
4.3.60.0010.0118.13
4.3.50.0040.0158.13
4.3.40.0010.0168.09
4.3.30.0050.0077.46
4.3.20.0050.0077.45
4.3.10.0020.0107.43
4.3.00.0100.01110.04

preferences:
45.27 ms | 400 KiB | 5 Q