3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ['a' => 1, 'b' => 2]; $arr += ['a' => 3] + ['b' => 4]; print_r(['a' => 3] + ['b' => 4]); print_r($arr); $arr = ['a' => 1, 'b' => 2]; print_r(array_merge($arr, ['a' => 3], ['b' => 4]));

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)
8.3.40.0150.00018.54
8.3.30.0090.00619.09
8.3.20.0000.00720.22
8.3.10.0080.00021.86
8.3.00.0040.00420.70
8.2.170.0110.00422.96
8.2.160.0130.00722.07
8.2.150.0030.00524.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00422.30
8.2.110.0050.00522.16
8.2.100.0120.00017.66
8.2.90.0000.00719.05
8.2.80.0040.00418.03
8.2.70.0000.01017.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0000.00819.34
8.2.30.0050.00218.05
8.2.20.0040.00417.54
8.2.10.0040.00419.33
8.2.00.0040.00417.63
8.1.270.0000.00823.80
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.80
8.1.230.0080.00418.79
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.53
8.1.180.0040.00418.10
8.1.170.0000.00918.51
8.1.160.0040.00421.91
8.1.150.0000.00718.58
8.1.140.0070.00017.34
8.1.130.0000.00717.82
8.1.120.0000.00717.45
8.1.110.0000.00717.38
8.1.100.0040.00417.36
8.1.90.0000.00717.28
8.1.80.0000.00717.46
8.1.70.0000.00717.23
8.1.60.0000.00917.47
8.1.50.0030.00517.36
8.1.40.0040.00417.46
8.1.30.0080.00017.40
8.1.20.0060.00317.56
8.1.10.0040.00417.43
8.1.00.0050.00217.40
8.0.300.0040.00418.77
8.0.290.0070.00017.04
8.0.280.0000.00618.39
8.0.270.0030.00317.06
8.0.260.0000.00716.80
8.0.250.0000.00716.84
8.0.240.0070.00316.84
8.0.230.0000.00716.91
8.0.220.0000.00816.90
8.0.210.0030.00316.91
8.0.200.0050.00316.81
8.0.190.0000.00716.83
8.0.180.0040.00416.83
8.0.170.0000.00716.93
8.0.160.0000.00816.73
8.0.150.0030.00316.88
8.0.140.0070.00016.75
8.0.130.0050.00013.38
8.0.120.0000.00816.82
8.0.110.0050.00216.79
8.0.100.0040.00416.71
8.0.90.0040.00416.79
8.0.80.0070.01016.89
8.0.70.0040.00416.95
8.0.60.0050.00216.89
8.0.50.0000.00816.92
8.0.30.0140.00517.00
8.0.20.0050.01417.40
8.0.10.0040.00416.90
8.0.00.0130.00416.66
7.4.330.0030.00315.04
7.4.320.0000.00716.52
7.4.300.0060.00016.42
7.4.290.0000.00716.46
7.4.280.0030.00316.44
7.4.270.0030.00316.41
7.4.260.0070.00016.49
7.4.250.0000.00716.41
7.4.240.0030.00416.37
7.4.230.0000.00716.64
7.4.220.0070.01016.30
7.4.210.0060.01016.55
7.4.200.0000.00716.54
7.4.190.0070.00016.59
7.4.160.0100.00316.42
7.4.150.0120.00617.40
7.4.140.0130.00517.86
7.4.130.0100.00616.36
7.4.120.0080.00816.46
7.4.110.0100.00716.48
7.4.100.0080.01116.56
7.4.90.0030.01516.29
7.4.80.0120.00616.47
7.4.70.0080.00816.41
7.4.60.0060.00916.32
7.4.50.0000.00716.37
7.4.40.0030.01222.77
7.4.30.0070.00716.17
7.4.10.0100.00616.51
7.4.00.0090.00715.34
7.3.330.0000.00513.07
7.3.320.0000.00613.07
7.3.310.0000.00715.97
7.3.300.0070.00016.16
7.3.290.0090.00616.07
7.3.280.0090.00816.16
7.3.270.0070.01117.40
7.3.260.0060.01116.21
7.3.250.0130.00616.40
7.3.240.0080.01316.29
7.3.230.0060.01216.39
7.3.210.0110.00616.20
7.3.200.0130.01019.39
7.3.190.0160.00616.29
7.3.180.0030.01316.31
7.3.170.0130.00716.27
7.3.160.0070.01016.23
7.3.130.0070.01016.19
7.3.120.0110.00614.96
7.3.110.0050.01215.19
7.3.100.0080.00715.16
7.3.90.0070.00615.25
7.3.80.0080.00615.31
7.3.70.0050.00815.09
7.3.60.0020.01215.10
7.3.50.0050.00815.26
7.3.40.0060.01015.10
7.3.30.0070.00815.27
7.3.20.0070.00917.03
7.3.10.0070.00816.80
7.3.00.0050.00816.68
7.2.330.0120.00616.52
7.2.320.0000.02416.34
7.2.310.0110.00916.58
7.2.300.0000.01716.49
7.2.290.0100.00616.46
7.2.260.0090.00916.05
7.2.250.0080.01015.41
7.2.240.0070.01115.51
7.2.230.0100.00615.29
7.2.220.0080.00515.33
7.2.210.0080.00715.11
7.2.200.0060.00715.19
7.2.190.0120.00515.23
7.2.180.0090.00815.23
7.2.170.0060.01015.38
7.2.160.0140.00615.57
7.2.150.0090.00817.48
7.2.140.0070.00917.63
7.2.130.0050.01017.09
7.2.120.0060.00716.93
7.2.110.0070.00616.96
7.2.100.0060.00516.97
7.2.90.0030.01017.04
7.2.80.0050.00917.08
7.2.70.0060.00616.93
7.2.60.0070.00616.95
7.2.50.0050.01016.97
7.2.40.0060.00717.06
7.2.30.0040.00817.05
7.2.20.0070.00617.07
7.2.10.0060.00916.92
7.2.00.0050.00817.37
7.1.330.0030.01116.19
7.1.320.0070.01016.37
7.1.310.0060.00716.25
7.1.300.0020.01216.35
7.1.290.0060.01016.21
7.1.280.0070.00616.34
7.1.270.0040.01216.27
7.1.260.0050.00916.32
7.1.250.0050.01016.10
7.1.240.0050.01116.38
7.1.230.0020.01116.58
7.1.220.0090.00616.55
7.1.210.0110.00416.49
7.1.200.0040.00916.30
7.1.190.0020.01016.34
7.1.180.0080.00716.29
7.1.170.0060.00716.59
7.1.160.0090.00316.44
7.1.150.0070.00316.62
7.1.140.0110.00516.62
7.1.130.0020.01416.47
7.1.120.0060.00616.58
7.1.110.0050.00816.73
7.1.100.0040.01117.08
7.1.90.0090.00716.49
7.1.80.0060.00516.59
7.1.70.0060.00616.73
7.1.60.0060.00817.50
7.1.50.0050.00816.69
7.1.40.0080.00816.38
7.1.30.0060.00816.35
7.1.20.0050.00616.54
7.1.10.0050.00816.58
7.1.00.0060.03118.49
7.0.330.0080.00616.07
7.0.320.0030.00716.21
7.0.310.0080.00616.11
7.0.300.0100.00716.10
7.0.290.0070.00716.18
7.0.280.0080.00516.37
7.0.270.0030.00916.15
7.0.260.0080.00516.17
7.0.250.0060.00716.26
7.0.240.0070.00716.20
7.0.230.0100.00316.08
7.0.220.0050.00716.24
7.0.210.0030.00916.15
7.0.200.0090.00316.09
7.0.190.0100.00515.85
7.0.180.0070.00716.25
7.0.170.0120.00316.16
7.0.160.0090.00316.16
7.0.150.0040.00716.07
7.0.140.0080.02518.18
7.0.130.0070.00816.07
7.0.120.0050.00716.23
7.0.110.0060.00716.12
7.0.100.0070.00716.16
7.0.90.0070.00816.10
7.0.80.0060.01016.20
7.0.70.0050.00816.07
7.0.60.0080.02817.52
7.0.50.0080.03216.71
7.0.40.0030.02216.12
7.0.30.0200.02516.27
7.0.20.0170.02816.19
7.0.10.0100.02116.09
7.0.00.0060.03116.21
5.6.400.0070.01015.01
5.6.390.0030.01215.05
5.6.380.0090.00815.30
5.6.370.0100.00315.14
5.6.360.0070.00915.13
5.6.350.0050.00815.11
5.6.340.0060.00915.28
5.6.330.0030.01015.10
5.6.320.0020.01115.06
5.6.310.0080.00815.05
5.6.300.0050.01015.14
5.6.290.0060.00915.04
5.6.280.0040.03017.16
5.6.270.0000.01015.32
5.6.260.0030.00815.09
5.6.250.0050.01115.07
5.6.240.0080.00715.06
5.6.230.0090.00414.88
5.6.220.0070.00915.06
5.6.210.0060.03417.00
5.6.200.0070.03016.02
5.6.190.0070.02116.87
5.6.180.0170.01816.88
5.6.170.0120.02216.79
5.6.160.0060.03216.90
5.6.150.0080.01816.11
5.6.140.0100.01516.09
5.6.130.0030.02016.10
5.6.120.0070.03417.15
5.6.110.0080.03317.12
5.6.100.0050.01717.02
5.6.90.0040.03516.93
5.6.80.0030.02716.78
5.6.70.0170.02816.66
5.6.60.0050.00814.99
5.6.50.0120.00215.05
5.6.40.0030.01214.84
5.6.30.0050.00714.89
5.6.20.0030.00715.13
5.6.10.0090.00614.93
5.6.00.0040.01014.98
5.5.380.0020.01315.09
5.5.370.0050.00814.94
5.5.360.0070.00915.04
5.5.350.0050.01916.68
5.5.340.0050.02215.93
5.5.330.0110.02716.81
5.5.320.0090.02416.81
5.5.310.0090.02416.56
5.5.300.0090.02216.00
5.5.290.0080.03016.01
5.5.280.0060.03016.89
5.5.270.0050.01916.79
5.5.260.0030.03016.92
5.5.250.0040.02016.75
5.5.240.0060.02916.77
5.5.230.0060.01014.88
5.5.220.0070.00514.92
5.5.210.0100.00514.77
5.5.200.0050.00714.72
5.5.190.0120.00215.06
5.5.180.0050.00614.94
5.5.170.0050.01015.05
5.5.160.0030.01214.91
5.5.150.0080.00515.01
5.5.140.0030.01215.00
5.5.130.0030.01014.85
5.5.120.0030.01214.91
5.5.110.0010.00915.04
5.5.100.0060.00914.90
5.5.90.0040.01214.95
5.5.80.0100.00515.06
5.5.70.0080.00515.07
5.5.60.0020.01214.71
5.5.50.0060.00814.80
5.5.40.0030.01415.02
5.5.30.0110.00315.08
5.5.20.0050.01014.85
5.5.10.0040.00915.14
5.5.00.0040.00814.85
5.4.450.0160.01814.80
5.4.440.0110.02014.71
5.4.430.0100.02314.65
5.4.420.0150.02214.76
5.4.410.0110.02614.78
5.4.400.0180.01614.53
5.4.390.0170.02214.59
5.4.380.0090.02214.49
5.4.370.0110.02214.51
5.4.360.0070.02214.53
5.4.350.0030.02714.49
5.4.340.0090.02014.49
5.4.330.0030.00812.49
5.4.320.0020.02012.49
5.4.310.0040.01612.54
5.4.300.0050.01612.58
5.4.290.0050.01812.47
5.4.280.0050.01612.44
5.4.270.0060.01912.43
5.4.260.0060.02612.49
5.4.250.0080.02212.46
5.4.240.0030.03412.43
5.4.230.0060.02012.43
5.4.220.0080.02012.43
5.4.210.0060.01512.48
5.4.200.0030.02212.43
5.4.190.0050.02012.43
5.4.180.0040.01712.43
5.4.170.0070.01512.44
5.4.160.0080.02312.51
5.4.150.0070.02812.44
5.4.140.0060.02512.32
5.4.130.0050.02212.32
5.4.120.0040.02412.32
5.4.110.0080.02012.31
5.4.100.0070.01912.34
5.4.90.0060.02112.34
5.4.80.0060.01912.33
5.4.70.0060.01712.35
5.4.60.0030.01512.30
5.4.50.0080.01412.32
5.4.40.0090.02412.36
5.4.30.0060.01812.32
5.4.20.0060.03912.35
5.4.10.0030.02412.35
5.4.00.0070.01912.17
5.3.290.0050.01712.72
5.3.280.0050.02212.56
5.3.270.0050.02312.63
5.3.260.0090.02512.68
5.3.250.0040.03312.60
5.3.240.0050.02712.57
5.3.230.0090.02612.65
5.3.220.0070.02612.64
5.3.210.0080.02412.58
5.3.200.0090.02012.60
5.3.190.0090.02012.59
5.3.180.0050.02412.70
5.3.170.0080.02112.68
5.3.160.0060.01912.62
5.3.150.0060.01912.66
5.3.140.0050.03012.60
5.3.130.0070.01812.69
5.3.120.0040.01712.68
5.3.110.0080.01612.59
5.3.100.0040.01712.45
5.3.90.0040.02012.52
5.3.80.0050.01912.40
5.3.70.0050.01612.42
5.3.60.0060.01912.40
5.3.50.0060.01912.37
5.3.40.0060.01612.40
5.3.30.0110.03412.32
5.3.20.0080.01912.25
5.3.10.0080.01912.22
5.3.00.0110.03312.21
5.2.170.0250.0689.15
5.2.160.0050.0339.15
5.2.150.0050.0349.15
5.2.140.0110.0489.14
5.2.130.0180.0539.11
5.2.120.0080.0439.11
5.2.110.0080.0499.12
5.2.100.0160.0519.12
5.2.90.0080.0529.11
5.2.80.0080.0469.11
5.2.70.0080.0469.11
5.2.60.0040.0569.06
5.2.50.0110.0629.03
5.2.40.0030.0439.00
5.2.30.0030.0338.99
5.2.20.0060.0348.97
5.2.10.0030.0338.90
5.2.00.0040.0368.75
5.1.60.0050.0308.04
5.1.50.0080.0288.05
5.1.40.0060.0308.03
5.1.30.0050.0298.38
5.1.20.0130.0578.40
5.1.10.0040.0468.12
5.1.00.0050.0388.12
5.0.50.0070.0366.60
5.0.40.0040.0216.46
5.0.30.0130.0446.27
5.0.20.0050.0416.25
5.0.10.0040.0266.22
5.0.00.0080.1046.21
4.4.90.0080.0534.78
4.4.80.0050.0204.75
4.4.70.0050.0364.75
4.4.60.0040.0194.75
4.4.50.0050.0194.77
4.4.40.0090.0454.71
4.4.30.0030.0214.76
4.4.20.0050.0154.84
4.4.10.0120.0334.85
4.4.00.0090.0464.76
4.3.110.0040.0174.67
4.3.100.0030.0184.66
4.3.90.0090.0244.64
4.3.80.0050.0384.59
4.3.70.0030.0204.63
4.3.60.0100.0364.63
4.3.50.0090.0334.63
4.3.40.0040.0544.54
4.3.30.0070.0173.27
4.3.20.0040.0183.25
4.3.10.0030.0223.21
4.3.00.0430.01013.64

preferences:
48.87 ms | 400 KiB | 5 Q