3v4l.org

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

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)
8.3.60.0100.01018.18
8.3.50.0110.00921.05
8.3.40.0120.00418.48
8.3.30.0090.00618.40
8.3.20.0080.00018.52
8.3.10.0050.00221.85
8.3.00.0040.00417.79
8.2.180.0140.00418.04
8.2.170.0110.00422.96
8.2.160.0070.00720.81
8.2.150.0000.00824.18
8.2.140.0090.00024.66
8.2.130.0040.00417.78
8.2.120.0040.00426.35
8.2.110.0030.00619.45
8.2.100.0080.00317.72
8.2.90.0000.00819.09
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0080.00017.80
8.2.50.0000.00818.07
8.2.40.0040.00419.77
8.2.30.0050.00218.00
8.2.20.0040.00417.61
8.2.10.0000.00817.99
8.2.00.0000.00717.98
8.1.280.0120.00325.92
8.1.270.0040.00423.87
8.1.260.0050.00328.09
8.1.250.0070.00028.09
8.1.240.0030.00620.93
8.1.230.0090.00317.42
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00717.10
8.1.190.0080.00017.11
8.1.180.0000.00718.10
8.1.170.0040.00418.50
8.1.160.0000.00721.96
8.1.150.0070.00018.69
8.1.140.0000.00719.42
8.1.130.0070.00017.46
8.1.120.0050.00217.25
8.1.110.0000.00817.39
8.1.100.0030.00317.28
8.1.90.0050.00217.33
8.1.80.0040.00417.32
8.1.70.0000.00817.38
8.1.60.0000.00817.34
8.1.50.0050.00317.34
8.1.40.0030.00617.33
8.1.30.0090.00017.43
8.1.20.0040.00417.45
8.1.10.0060.00317.25
8.1.00.0040.00417.30
8.0.300.0000.00918.77
8.0.290.0040.00416.63
8.0.280.0030.00318.25
8.0.270.0000.00717.05
8.0.260.0060.00017.22
8.0.250.0000.00816.71
8.0.240.0000.00816.85
8.0.230.0000.00716.84
8.0.220.0000.00716.73
8.0.210.0000.00716.68
8.0.200.0060.00016.71
8.0.190.0050.00616.82
8.0.180.0050.00316.74
8.0.170.0050.00316.80
8.0.160.0050.00216.66
8.0.150.0030.00316.70
8.0.140.0000.00716.61
8.0.130.0000.00513.19
8.0.120.0080.00016.70
8.0.110.0010.00616.72
8.0.100.0020.00616.69
8.0.90.0030.00516.61
8.0.80.0090.00316.73
8.0.70.0030.00416.71
8.0.60.0050.00316.63
8.0.50.0040.00316.71
8.0.30.0110.00516.84
8.0.20.0090.00817.27
8.0.10.0010.00616.84
8.0.00.0080.00416.78
7.4.330.0000.00615.08
7.4.320.0030.00316.52
7.4.300.0060.00016.38
7.4.290.0030.00516.49
7.4.280.0000.00716.37
7.4.270.0030.00316.50
7.4.260.0030.00316.25
7.4.250.0000.00816.42
7.4.240.0000.00716.33
7.4.230.0060.00216.48
7.4.220.0090.00316.43
7.4.210.0090.00616.40
7.4.200.0020.00616.39
7.4.190.0000.00716.32
7.4.180.0040.00416.43
7.4.160.0090.00316.53
7.4.150.0090.00616.90
7.4.140.0100.00417.39
7.4.130.0050.00916.37
7.4.120.0060.01116.35
7.4.110.0100.00316.30
7.4.100.0060.00816.39
7.4.90.0050.00716.32
7.4.80.0050.00917.84
7.4.70.0040.00816.35
7.4.60.0080.00616.28
7.4.50.0070.00516.18
7.4.40.0030.00916.36
7.4.30.0050.00716.29
7.4.20.0040.00416.27
7.4.10.0070.00016.25
7.4.00.0050.00615.55
7.3.330.0050.00012.89
7.3.320.0030.00312.95
7.3.310.0030.00416.20
7.3.300.0050.00216.12
7.3.290.0040.00316.03
7.3.280.0050.01016.13
7.3.270.0060.00616.73
7.3.260.0090.00516.07
7.3.250.0110.00616.19
7.3.240.0090.00616.26
7.3.230.0000.01316.26
7.3.220.0040.00416.04
7.3.210.0090.00316.03
7.3.200.0060.00716.22
7.3.190.0050.00716.16
7.3.180.0060.00616.14
7.3.170.0090.00516.17
7.3.160.0080.00316.16
7.3.150.0040.00416.07
7.3.140.0040.00415.90
7.3.130.0030.00315.88
7.3.120.0040.00416.04
7.3.110.0000.00715.84
7.3.100.0030.00515.95
7.3.90.0000.00716.20
7.3.80.0030.00316.14
7.3.70.0030.00616.01
7.3.60.0000.00716.08
7.3.50.0070.00016.20
7.3.40.0040.00416.32
7.3.30.0020.00516.22
7.3.20.0000.00716.31
7.3.10.0060.00716.17
7.3.00.0020.00816.21
7.2.340.0050.00516.22
7.2.330.0100.00716.12
7.2.320.0030.01016.35
7.2.310.0080.00416.16
7.2.300.0070.00516.12
7.2.290.0070.00616.22
7.2.280.0000.00916.14
7.2.270.0030.00616.10
7.2.260.0000.00816.13
7.2.250.0030.00516.23
7.2.240.0000.00816.00
7.2.230.0030.00616.08
7.2.220.0030.00616.11
7.2.210.0030.00516.09
7.2.200.0060.00316.34
7.2.190.0000.00916.40
7.2.180.0070.00216.04
7.2.170.0060.00316.27
7.2.160.0030.00616.29
7.2.150.0070.00716.35
7.2.140.0040.00416.47
7.2.130.0070.00516.52
7.2.120.0050.00816.38
7.2.110.0060.00516.51
7.2.100.0050.00716.24
7.2.90.0070.00516.35
7.2.80.0050.00616.30
7.2.70.0110.00416.47
7.2.60.0070.00416.62
7.2.50.0040.01016.61
7.2.40.0060.00516.58
7.2.30.0080.00816.49
7.2.20.0050.00816.43
7.2.10.0030.00716.58
7.2.00.0070.00617.13
7.1.330.0000.00915.35
7.1.320.0040.00415.46
7.1.310.0060.00215.45
7.1.300.0030.00515.40
7.1.290.0030.00515.45
7.1.280.0060.00315.53
7.1.270.0000.00815.35
7.1.260.0050.00315.43
7.1.250.0070.00315.42
7.1.240.0030.00515.49
7.1.230.0110.00215.37
7.1.220.0050.00615.54
7.1.210.0030.00715.37
7.1.200.0090.00415.49
7.1.190.0020.00915.46
7.1.180.0030.00715.42
7.1.170.0040.00615.46
7.1.160.0020.01115.67
7.1.150.0080.00815.53
7.1.140.0080.00515.53
7.1.130.0020.01115.53
7.1.120.0080.00215.40
7.1.110.0070.00515.53
7.1.100.0070.00516.38
7.1.90.0060.00715.37
7.1.80.0020.00915.31
7.1.70.0020.00515.98
7.1.60.0010.01016.07
7.1.50.0060.00615.59
7.1.40.0040.00515.54
7.1.30.0070.00315.42
7.1.20.0040.00515.43
7.1.10.0050.00415.62
7.1.00.0050.02817.58
7.0.330.0050.00715.01
7.0.320.0020.01015.29
7.0.310.0040.00415.10
7.0.300.0060.00415.26
7.0.290.0030.00815.06
7.0.280.0040.00415.05
7.0.270.0130.00315.02
7.0.260.0070.00515.19
7.0.250.0020.01015.11
7.0.240.0050.00315.09
7.0.230.0070.00415.36
7.0.220.0040.00515.12
7.0.210.0020.00915.22
7.0.200.0050.00615.63
7.0.190.0020.01115.21
7.0.180.0020.01015.19
7.0.170.0050.00415.15
7.0.160.0050.00615.17
7.0.150.0020.00915.04
7.0.140.0000.01115.09
7.0.130.0040.00615.19
7.0.120.0070.00415.25
7.0.110.0070.00415.16
7.0.100.0040.00915.27
7.0.90.0060.00615.22
7.0.80.0060.00315.16
7.0.70.0000.01115.29
7.0.60.0040.02117.40
7.0.50.0050.02616.93
7.0.40.0100.02116.11
7.0.30.0160.02016.17
7.0.20.0130.01816.19
7.0.10.0060.02616.20
7.0.00.0170.02716.15
5.6.400.0000.00815.68
5.6.390.0040.00415.61
5.6.380.0030.00814.99
5.6.370.0020.01114.76
5.6.360.0060.00614.61
5.6.350.0060.00514.74
5.6.340.0100.00014.86
5.6.330.0020.00814.54
5.6.320.0030.01014.99
5.6.310.0050.00514.88
5.6.300.0020.00914.80
5.6.290.0050.00514.85
5.6.280.0060.02716.84
5.6.270.0040.00714.87
5.6.260.0080.00414.64
5.6.250.0040.00414.90
5.6.240.0020.00914.79
5.6.230.0040.00614.85
5.6.220.0050.00614.84
5.6.210.0080.02716.69
5.6.200.0090.02616.94
5.6.190.0050.02616.92
5.6.180.0120.02316.94
5.6.170.0080.02217.05
5.6.160.0150.02016.89
5.6.150.0140.02116.98
5.6.140.0150.01816.94
5.6.130.0060.02516.88
5.6.120.0060.02617.02
5.6.110.0100.02416.96
5.6.100.0130.02216.94
5.6.90.0050.02716.82
5.6.80.0100.02316.68
5.6.70.0110.02116.61
5.6.60.0140.02116.70
5.6.50.0110.02216.71
5.6.40.0110.02316.77
5.6.30.0110.02316.69
5.6.20.0120.02116.60
5.6.10.0060.02716.59
5.6.00.0100.02516.63
5.5.380.0040.00613.65
5.5.370.0070.00313.63
5.5.360.0050.00413.63
5.5.350.0060.02015.83
5.5.340.0090.02115.95
5.5.330.0110.02316.04
5.5.320.0150.02015.94
5.5.310.0070.02315.98
5.5.300.0120.02116.01
5.5.290.0040.02815.95
5.5.280.0080.02215.99
5.5.270.0110.02015.98
5.5.260.0140.02116.02
5.5.250.0080.02315.96
5.5.240.0070.02615.88
5.5.230.0130.02115.80
5.5.220.0100.02215.87
5.5.210.0100.02315.81
5.5.200.0100.02315.76
5.5.190.0160.01715.77
5.5.180.0110.02415.79
5.5.170.0030.00713.52
5.5.160.0110.02415.77
5.5.150.0040.02415.77
5.5.140.0100.02515.69
5.5.130.0130.02115.71
5.5.120.0100.02315.75
5.5.110.0080.02515.71
5.5.100.0100.02215.67
5.5.90.0100.02115.75
5.5.80.0040.02415.71
5.5.70.0090.02215.82
5.5.60.0090.02015.74
5.5.50.0080.02115.76
5.5.40.0080.01915.69
5.5.30.0050.02415.69
5.5.20.0080.02415.86
5.5.10.0090.02115.79
5.5.00.0090.02115.71

preferences:
64.34 ms | 401 KiB | 5 Q