3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a'=>'{a}', 'b' => '{b}'); var_dump(array_merge(array('a' => '[1]'), $a));

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)
8.3.60.0100.01018.30
8.3.50.0150.00721.92
8.3.40.0120.00318.61
8.3.30.0070.00718.77
8.3.20.0000.00918.65
8.3.10.0030.00620.96
8.3.00.0000.00721.91
8.2.180.0150.00416.38
8.2.170.0040.01122.96
8.2.160.0090.00620.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00519.25
8.2.110.0030.00620.54
8.2.100.0060.00617.91
8.2.90.0080.00019.05
8.2.80.0030.00517.97
8.2.70.0030.00617.38
8.2.60.0080.00017.91
8.2.50.0040.00418.07
8.2.40.0070.00018.16
8.2.30.0080.00019.66
8.2.20.0070.00017.64
8.2.10.0040.00417.61
8.2.00.0040.00417.59
8.1.280.0110.01125.92
8.1.270.0040.00423.99
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0110.00722.46
8.1.230.0040.00820.96
8.1.220.0000.00918.77
8.1.210.0000.00818.90
8.1.200.0040.00417.25
8.1.190.0000.00717.51
8.1.180.0040.00418.10
8.1.170.0040.00418.54
8.1.160.0050.00218.74
8.1.150.0000.00718.49
8.1.140.0040.00417.35
8.1.130.0000.00717.74
8.1.120.0070.00017.33
8.1.110.0060.00317.41
8.1.100.0040.00417.28
8.1.90.0070.00017.28
8.1.80.0000.00717.41
8.1.70.0030.00517.26
8.1.60.0050.00217.36
8.1.50.0070.00017.30
8.1.40.0030.00617.49
8.1.30.0000.00717.49
8.1.20.0040.00417.57
8.1.10.0000.00717.47
8.1.00.0040.00817.37
8.0.300.0030.00619.98
8.0.290.0070.00017.18
8.0.280.0000.00818.23
8.0.270.0070.00017.17
8.0.260.0000.00616.75
8.0.250.0040.00416.87
8.0.240.0080.00016.93
8.0.230.0020.00516.92
8.0.220.0000.00716.72
8.0.210.0040.00416.73
8.0.200.0030.00316.77
8.0.190.0080.00016.89
8.0.180.0030.00516.74
8.0.170.0050.00216.83
8.0.160.0030.00616.85
8.0.150.0000.00716.79
8.0.140.0000.00816.80
8.0.130.0030.00313.29
8.0.120.0070.00016.68
8.0.110.0000.00816.82
8.0.100.0070.00016.67
8.0.90.0030.00516.86
8.0.80.0070.00716.82
8.0.70.0030.00516.87
8.0.60.0050.00216.76
8.0.50.0000.00816.67
8.0.30.0190.00316.96
8.0.20.0110.00717.40
8.0.10.0040.00416.83
8.0.00.0150.00616.54
7.4.330.0000.00714.70
7.4.320.0080.00016.54
7.4.300.0000.00616.54
7.4.290.0040.00416.52
7.4.280.0060.00516.39
7.4.270.0030.00316.49
7.4.260.0000.00513.19
7.4.250.0000.00716.38
7.4.240.0000.00716.54
7.4.230.0000.00716.42
7.4.220.0160.00716.40
7.4.210.0080.00716.54
7.4.200.0000.00716.36
7.4.190.0040.00416.55
7.4.160.0100.00816.41
7.4.150.0030.01317.40
7.4.140.0090.00817.86
7.4.130.0070.01216.36
7.4.120.0100.00716.48
7.4.110.0140.00316.41
7.4.100.0070.01116.29
7.4.90.0160.00616.37
7.4.80.0080.00819.37
7.4.70.0070.01016.43
7.4.60.0060.01416.41
7.4.50.0040.00416.34
7.4.40.0040.01122.27
7.4.30.0030.01316.29
7.4.00.0000.01214.81
7.3.330.0000.00612.88
7.3.320.0000.00612.98
7.3.310.0090.00016.21
7.3.300.0000.00716.15
7.3.290.0070.00716.08
7.3.280.0090.00816.22
7.3.270.0100.00617.40
7.3.260.0120.00718.24
7.3.250.0100.01016.34
7.3.240.0120.00816.36
7.3.230.0110.00516.39
7.3.210.0030.01716.07
7.3.200.0070.01319.39
7.3.190.0100.00616.04
7.3.180.0100.00716.49
7.3.170.0100.00916.27
7.3.160.0100.00716.02
7.3.120.0030.01414.61
7.2.330.0070.01116.53
7.2.320.0130.00916.48
7.2.310.0000.01816.51
7.2.300.0040.01316.43
7.2.290.0030.01216.20
7.2.60.0100.00316.47
7.2.00.0030.01019.20
7.1.200.0080.00515.63
7.1.100.0080.00317.66
7.1.70.0090.00316.77
7.1.60.0090.01519.40
7.1.50.0040.00816.92
7.1.00.0030.05722.30
7.0.200.0000.00816.63
7.0.140.0000.07721.97
7.0.70.0030.05021.93
7.0.60.0000.07021.79
7.0.50.0100.07722.04
7.0.40.0000.07020.07
7.0.30.0070.08320.03
7.0.20.0130.06320.11
7.0.10.0100.07720.12
7.0.00.0070.06320.09
5.6.280.0030.07720.88
5.6.220.0000.04320.65
5.6.210.0070.07020.47
5.6.200.0000.09321.08
5.6.190.0030.04321.07
5.6.180.0030.04021.08
5.6.170.0030.04321.01
5.6.160.0070.04321.02
5.6.150.0030.08021.07
5.6.140.0000.04721.09
5.6.130.0070.04320.94
5.6.120.0130.08021.06
5.6.110.0030.05021.06
5.6.100.0070.07021.06
5.6.90.0070.08721.02
5.6.80.0070.08020.39
5.6.70.0130.06720.45
5.6.60.0100.07320.30
5.6.50.0070.06320.41
5.6.40.0070.04020.37
5.6.30.0070.08020.46
5.6.20.0030.08020.30
5.6.10.0030.07720.38
5.6.00.0030.05720.41
5.5.360.0030.08720.34
5.5.350.0030.07020.36
5.5.340.0100.08320.73
5.5.330.0070.08320.77
5.5.320.0000.06320.80
5.5.310.0030.08320.82
5.5.300.0070.08320.85
5.5.290.0000.05020.88
5.5.280.0030.05320.90
5.5.270.0070.07720.78
5.5.260.0030.04320.86
5.5.250.0030.06020.57
5.5.240.0000.07020.11
5.5.230.0070.08020.20
5.5.220.0070.07020.21
5.5.210.0100.07320.25
5.5.200.0030.05320.14
5.5.190.0070.06320.14
5.5.180.0030.07720.17
5.5.160.0070.03720.10
5.5.150.0070.07320.25
5.5.140.0030.08020.21
5.5.130.0070.08020.23
5.5.120.0100.07320.21
5.5.110.0070.07020.13
5.5.100.0030.07020.07
5.5.90.0000.08720.06
5.5.80.0070.07020.14
5.5.70.0030.04320.04
5.5.60.0070.04719.93
5.5.50.0070.04720.04
5.5.40.0030.07319.98
5.5.30.0070.07720.04
5.5.20.0100.05020.04
5.5.10.0130.06020.03
5.5.00.0030.07720.10
5.4.450.0070.05319.36
5.4.440.0030.05719.39
5.4.430.0100.06019.39
5.4.420.0000.08719.28
5.4.410.0070.04019.25
5.4.400.0070.07719.10
5.4.390.0070.07318.94
5.4.380.0030.06319.03
5.4.370.0000.05318.96
5.4.360.0070.08019.11
5.4.350.0130.07019.02
5.4.340.0070.04319.12
5.4.320.0070.07318.98
5.4.310.0030.06719.12
5.4.300.0070.04318.96
5.4.290.0070.06718.81
5.4.280.0000.06719.11
5.4.270.0030.04318.96
5.4.260.0070.03719.11
5.4.250.0000.04019.06
5.4.240.0030.05319.02
5.4.230.0030.09719.07
5.4.220.0030.07318.99
5.4.210.0100.07319.02
5.4.200.0100.04718.89
5.4.190.0100.03319.24
5.4.180.0070.07718.95
5.4.170.0070.06719.04
5.4.160.0130.07019.05
5.4.150.0030.08319.21
5.4.140.0030.07716.29
5.4.130.0030.06716.06
5.4.120.0070.07016.36
5.4.110.0030.07316.40
5.4.100.0070.06716.35
5.4.90.0070.04716.23
5.4.80.0000.07716.22
5.4.70.0000.05716.19
5.4.60.0030.07716.23
5.4.50.0030.07316.41
5.4.40.0100.03716.36
5.4.30.0000.04716.30
5.4.20.0000.04016.27
5.4.10.0030.07316.27
5.4.00.0230.05715.82
5.3.290.0000.08015.82
5.3.280.0030.07715.82
5.3.270.0030.07315.82
5.3.260.0000.08015.82
5.3.250.0170.06715.82
5.3.240.0030.08015.82
5.3.230.0100.05715.82
5.3.220.0000.07715.82
5.3.210.0070.08715.82
5.3.200.0000.07715.82
5.3.190.0070.07715.82
5.3.180.0100.07315.82
5.3.170.0070.04715.82
5.3.160.0130.04315.82
5.3.150.0070.06715.82
5.3.140.0030.05315.82
5.3.130.0030.06015.82
5.3.120.0030.04715.82
5.3.110.0070.08015.82
5.3.100.0070.06715.82
5.3.90.0070.07015.82
5.3.80.0000.08015.82
5.3.70.0000.04315.82
5.3.60.0000.08015.82
5.3.50.0070.04715.82
5.3.40.0030.04715.82
5.3.30.0000.06715.82
5.3.20.0000.04315.82
5.3.10.0030.05015.82
5.3.00.0000.05715.82
5.2.170.0070.05715.82
5.2.160.0030.06715.82
5.2.150.0030.06315.82
5.2.140.0000.03715.82
5.2.130.0000.05715.82
5.2.120.0030.05715.82
5.2.110.0000.04315.82
5.2.100.0030.05315.82
5.2.90.0030.04315.82
5.2.80.0070.06315.82
5.2.70.0000.06315.82
5.2.60.0030.04715.82
5.2.50.0000.05015.82
5.2.40.0030.06315.82
5.2.30.0030.05015.82
5.2.20.0030.04015.82
5.2.10.0000.06015.82
5.2.00.0070.03015.82
5.1.60.0000.05715.82
5.1.50.0000.05715.82
5.1.40.0030.05715.82
5.1.30.0030.04715.82
5.1.20.0000.05715.82
5.1.10.0070.05315.82
5.1.00.0070.05715.82
5.0.50.0070.04015.82
5.0.40.0000.04715.82
5.0.30.0000.06715.82
5.0.20.0000.03715.82
5.0.10.0000.02715.82
5.0.00.0000.03315.82
4.4.90.0000.03315.82
4.4.80.0030.02715.82
4.4.70.0070.03015.82
4.4.60.0000.03015.82
4.4.50.0030.03015.82
4.4.40.0000.03715.82
4.4.30.0030.03715.82
4.4.20.0000.03015.82
4.4.10.0000.03015.82
4.4.00.0000.05315.82
4.3.110.0070.02015.82
4.3.100.0000.02015.82
4.3.90.0000.03015.82
4.3.80.0030.05015.82
4.3.70.0000.03715.82
4.3.60.0100.02015.82
4.3.50.0000.03715.82
4.3.40.0000.05715.82
4.3.30.0000.04015.82
4.3.20.0030.03715.82
4.3.10.0030.03315.82
4.3.00.0030.02015.82

preferences:
41.95 ms | 401 KiB | 5 Q