3v4l.org

run code in 300+ PHP versions simultaneously
<?php $X = array('a' => 'a in X', 'ab' => 'ab in X', 'na' => null, 'nb' => 'nb in X'); $Y = array('b' => 'b in Y', 'ab' => 'ab in Y', 'na' => 'na in Y', 'nb' => null); $XY = array_merge($X, $Y); var_dump($XY);

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)
8.3.40.0140.00718.68
8.3.30.0140.00018.83
8.3.20.0070.00020.36
8.3.10.0050.00221.58
8.3.00.0000.00819.13
8.2.170.0170.00022.96
8.2.160.0140.00022.09
8.2.150.0100.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00019.54
8.2.110.0030.00622.30
8.2.100.0040.01120.40
8.2.90.0040.00419.07
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0000.00718.09
8.2.30.0040.00417.99
8.2.20.0040.00417.59
8.2.10.0050.00318.10
8.2.00.0040.00417.71
8.1.270.0080.00018.83
8.1.260.0060.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00323.82
8.1.230.0070.00419.16
8.1.220.0050.00217.79
8.1.210.0080.00018.77
8.1.200.0040.00717.22
8.1.190.0060.00317.23
8.1.180.0000.00818.10
8.1.170.0000.00818.51
8.1.160.0000.00721.81
8.1.150.0040.00418.72
8.1.140.0030.00517.41
8.1.130.0030.00317.85
8.1.120.0000.00817.28
8.1.110.0000.00817.28
8.1.100.0000.00817.37
8.1.90.0070.00017.29
8.1.80.0070.00017.41
8.1.70.0030.00317.33
8.1.60.0040.00417.49
8.1.50.0030.00617.46
8.1.40.0080.00017.36
8.1.30.0000.00817.59
8.1.20.0040.00417.47
8.1.10.0070.00017.29
8.1.00.0000.00717.39
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0040.00418.41
8.0.270.0050.00316.72
8.0.260.0080.00017.17
8.0.250.0030.00316.77
8.0.240.0050.00316.89
8.0.230.0070.00016.71
8.0.220.0030.00316.80
8.0.210.0050.00316.81
8.0.200.0030.00716.75
8.0.190.0000.00916.87
8.0.180.0000.00816.77
8.0.170.0040.00416.73
8.0.160.0040.00416.82
8.0.150.0040.00416.76
8.0.140.0000.00716.77
8.0.130.0050.00013.20
8.0.120.0050.00316.84
8.0.110.0000.00716.84
8.0.100.0040.00416.76
8.0.90.0070.00016.93
8.0.80.0070.01016.79
8.0.70.0070.00016.79
8.0.60.0040.00416.69
8.0.50.0070.00016.75
8.0.30.0150.01216.96
8.0.20.0090.01017.40
8.0.10.0070.00016.89
8.0.00.0120.01016.83
7.4.330.0000.00515.09
7.4.320.0050.00316.43
7.4.300.0030.00316.54
7.4.290.0030.00316.43
7.4.280.0030.00616.51
7.4.270.0030.00316.58
7.4.260.0000.00816.52
7.4.250.0070.00016.29
7.4.240.0040.00316.50
7.4.230.0030.00316.24
7.4.220.0090.01016.53
7.4.210.0090.00616.50
7.4.200.0020.00516.26
7.4.160.0040.01216.57
7.4.150.0140.00617.40
7.4.140.0080.01017.86
7.4.130.0090.00916.38
7.4.120.0080.00816.37
7.4.110.0090.01616.31
7.4.100.0120.00916.45
7.4.90.0120.00416.36
7.4.80.0130.00919.39
7.4.70.0130.00716.50
7.4.60.0070.01316.23
7.4.50.0000.00816.22
7.4.40.0140.00316.38
7.4.30.0140.00716.50
7.4.00.0080.00814.68
7.3.330.0060.00012.97
7.3.320.0020.00213.03
7.3.310.0030.00316.06
7.3.300.0050.00216.12
7.3.290.0100.00316.13
7.3.280.0070.00916.15
7.3.270.0090.00917.40
7.3.260.0150.00316.25
7.3.250.0030.01416.17
7.3.240.0120.00416.06
7.3.230.0090.00916.39
7.3.210.0110.01416.15
7.3.200.0030.01419.39
7.3.190.0110.00616.09
7.3.180.0070.01016.51
7.3.170.0110.00716.27
7.3.160.0090.00916.13
7.2.330.0140.00316.70
7.2.320.0100.00616.45
7.2.310.0030.01316.26
7.2.300.0100.00716.71
7.2.290.0100.01016.59
7.2.00.0000.01119.47
7.1.200.0120.00315.63
7.1.100.0080.00818.04
7.1.70.0000.01117.14
7.1.60.0090.01519.46
7.1.50.0040.01816.75
7.1.00.0030.07722.48
7.0.200.0060.00316.40
7.0.140.0000.06022.15
7.0.60.0130.08019.94
7.0.50.0130.07017.80
7.0.40.0100.03719.90
7.0.30.0370.04720.06
7.0.20.0270.05720.09
7.0.10.0000.08020.30
7.0.00.0000.04320.08
5.6.280.0100.06721.12
5.6.210.0000.08720.56
5.6.200.0070.06318.09
5.6.190.0030.09020.63
5.6.180.0130.06320.45
5.6.170.0230.07320.45
5.6.160.0030.04720.71
5.6.150.0100.06718.21
5.6.140.0100.06318.18
5.6.130.0070.04018.18
5.6.120.0100.07021.05
5.6.110.0070.08021.13
5.6.100.0030.07321.08
5.6.90.0200.07020.97
5.6.80.0100.06320.38
5.5.350.0070.07020.40
5.5.340.0070.06018.02
5.5.330.0070.08320.25
5.5.320.0230.07720.13
5.5.310.0330.06320.23
5.5.300.0130.06017.89
5.5.290.0070.05717.98
5.5.280.0030.07320.89
5.5.270.0000.04320.74
5.5.260.0130.07020.76
5.5.250.0130.06720.68
5.5.240.0170.03720.26
5.4.450.2530.04319.42
5.4.440.2300.03319.41
5.4.430.2330.04019.41
5.4.420.2330.04019.42
5.4.410.0200.03319.41
5.4.400.0200.03019.24
5.4.390.0100.04019.08
5.4.380.2270.04018.91
5.4.370.2330.03319.24
5.4.360.2800.04019.22
5.4.350.2300.04018.90
5.4.340.2430.04019.25
5.4.320.2470.04019.25
5.4.310.2430.04719.04
5.4.300.2300.04018.80
5.4.290.2270.03719.24
5.4.280.2770.04319.24
5.4.270.2430.03319.16
5.4.260.2300.04019.20
5.4.250.2200.03719.08
5.4.240.2370.04319.24
5.4.230.2400.04318.88
5.4.220.2470.04319.10
5.4.210.2470.04019.13
5.4.200.2430.04019.08
5.4.190.2370.04318.92
5.4.180.2300.04318.77
5.4.170.2200.04019.06
5.4.160.2600.03019.06
5.4.150.2270.03719.11
5.4.140.0700.05016.52
5.4.130.0100.03316.29
5.4.120.0000.06016.29
5.4.110.0370.03716.20
5.4.100.2430.04316.45
5.4.90.2470.04016.34
5.4.80.2370.03316.37
5.4.70.2400.03316.36
5.4.60.2270.03016.36
5.4.50.2070.03316.40
5.4.40.1700.03316.20
5.4.30.2000.03716.36
5.4.20.1700.03316.04
5.4.10.2230.03316.43
5.4.00.2200.03715.83
5.3.290.2200.03714.53
5.3.280.2070.03714.63
5.3.270.2070.03314.45
5.3.260.1900.03714.65
5.3.250.2230.03314.45
5.3.240.2270.04014.51
5.3.230.2300.03714.45
5.3.220.2070.04014.66
5.3.210.1930.03714.55
5.3.200.1770.03314.56
5.3.190.1900.03714.43
5.3.180.2300.03014.48
5.3.170.1930.03314.40
5.3.160.1930.03014.47
5.3.150.1970.03714.50
5.3.140.2670.03714.39
5.3.130.2400.04714.53
5.3.120.2000.03714.53
5.3.110.2430.04314.42
5.3.100.2370.03713.86
5.3.90.2270.04013.94
5.3.80.2170.03714.00
5.3.70.2200.02714.11
5.3.60.0400.03313.86
5.3.50.0100.05013.77
5.3.40.0030.03713.89
5.3.30.0000.05313.85
5.3.20.2170.03013.78
5.3.10.2230.02713.75
5.3.00.2400.02313.59
5.2.170.2100.04011.09
5.2.160.1600.03311.20
5.2.150.2000.03011.01
5.2.140.1900.03011.19
5.2.130.1700.03011.15
5.2.120.1870.03311.11
5.2.110.1730.03011.11
5.2.100.1730.02710.95
5.2.90.1770.02710.96
5.2.80.2000.03010.93
5.2.70.1800.02711.03
5.2.60.1800.02010.98
5.2.50.1970.02711.17
5.2.40.1670.03310.84
5.2.30.1470.02310.87
5.2.20.1570.03710.96
5.2.10.1700.02710.97
5.2.00.1600.03310.57
5.1.60.1600.03310.07
5.1.50.1670.02310.11
5.1.40.1670.03010.02
5.1.30.1500.03010.25
5.1.20.1500.02710.42
5.1.10.1600.02710.15
5.1.00.1600.03010.14
5.0.50.0870.0308.71
5.0.40.0800.0278.27
5.0.30.0700.0378.20
5.0.20.0800.0208.07
5.0.10.0730.0238.10
5.0.00.0900.0438.16
4.4.90.0900.0237.97
4.4.80.0770.0177.97
4.4.70.0870.0137.97
4.4.60.0930.0207.97
4.4.50.0830.0207.97
4.4.40.1030.0337.97
4.4.30.0900.0207.97
4.4.20.0930.0207.97
4.4.10.0770.0137.97
4.4.00.0730.0237.97
4.3.110.0870.0277.97
4.3.100.0770.0177.97
4.3.90.0870.0237.97
4.3.80.0970.0277.97
4.3.70.0930.0207.97
4.3.60.0930.0177.97
4.3.50.0970.0237.97
4.3.40.0830.0177.97
4.3.30.0400.0207.97
4.3.20.0500.0277.97
4.3.10.0500.0277.97
4.3.00.0400.0207.97

preferences:
48.38 ms | 400 KiB | 5 Q