3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array_1 = array("1a" =>"dogs","2a" => "cats","3a" => "birds","4a" => "people"); $array_2 = array("4a" => "walking","2a" => "cats"); foreach ($array_1 as $key_1 => $value_1) { if (arraykey_exists($key_1, $array_2)) { $array_1[$key_1] = $array_2[$key_1]; } } prit_r($array_1);

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)
8.3.70.0090.00618.56
8.3.60.0180.00316.48
8.3.50.0070.00822.05
8.3.40.0140.00718.83
8.3.30.0070.00719.18
8.3.20.0050.00320.38
8.3.10.0080.00023.51
8.3.00.0030.00617.75
8.2.180.0090.00618.66
8.2.170.0080.00822.96
8.2.160.0100.00320.39
8.2.150.0000.00724.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0070.00022.11
8.2.110.0040.00422.02
8.2.100.0090.00317.91
8.2.90.0030.00519.09
8.2.80.0040.00418.05
8.2.70.0090.00017.50
8.2.60.0030.00617.80
8.2.50.0040.00418.07
8.2.40.0000.00818.22
8.2.30.0070.00018.04
8.2.20.0030.00517.77
8.2.10.0000.00718.00
8.2.00.0060.00517.70
8.1.280.0140.00325.92
8.1.270.0030.00523.92
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00323.91
8.1.230.0070.00419.16
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.63
8.1.180.0040.00418.10
8.1.170.0040.00418.55
8.1.160.0040.00422.06
8.1.150.0040.00418.66
8.1.140.0070.00017.38
8.1.130.0000.00717.88
8.1.120.0040.00417.45
8.1.110.0100.00017.34
8.1.100.0000.00917.32
8.1.90.0040.00417.36
8.1.80.0070.00417.44
8.1.70.0030.00317.35
8.1.60.0050.00317.63
8.1.50.0000.00817.53
8.1.40.0050.00317.54
8.1.30.0050.00317.54
8.1.20.0050.00317.63
8.1.10.0000.00717.52
8.1.00.0000.00717.57
8.0.300.0000.00718.77
8.0.290.0070.00017.04
8.0.280.0040.00418.32
8.0.270.0030.00317.27
8.0.260.0060.00017.26
8.0.250.0000.00816.91
8.0.240.0040.00417.00
8.0.230.0030.00316.90
8.0.220.0070.00017.00
8.0.210.0030.00316.85
8.0.200.0050.00317.07
8.0.190.0000.00816.99
8.0.180.0080.00317.02
8.0.170.0000.00817.04
8.0.160.0000.00716.86
8.0.150.0000.01016.96
8.0.140.0040.00416.86
8.0.130.0000.00713.39
8.0.120.0040.00416.92
8.0.110.0040.00416.90
8.0.100.0070.00016.94
8.0.90.0040.00416.91
8.0.80.0090.01317.00
8.0.70.0000.00716.75
8.0.60.0040.00416.94
8.0.50.0000.00716.95
8.0.30.0100.01117.13
8.0.20.0120.00617.40
8.0.10.0070.00017.11
8.0.00.0100.01016.76
7.4.330.0050.00015.14
7.4.320.0030.00316.66
7.4.300.0000.00616.52
7.4.290.0070.00016.66
7.4.280.0040.00416.50
7.4.270.0030.00316.55
7.4.260.0030.00316.63
7.4.250.0000.00716.55
7.4.240.0020.00616.60
7.4.230.0000.00716.42
7.4.220.0060.00916.72
7.4.210.0070.00916.58
7.4.200.0030.00316.64
7.4.190.0000.00716.75
7.4.160.0110.00416.60
7.4.150.0100.00717.40
7.4.140.0070.01017.86
7.4.130.0110.00616.63
7.4.120.0050.01116.46
7.4.110.0060.01216.49
7.4.100.0040.01416.70
7.4.90.0070.01716.41
7.4.80.0110.00719.39
7.4.70.0050.01816.54
7.4.60.0070.01116.52
7.4.50.0060.00316.54
7.4.40.0080.00222.77
7.4.30.0080.00816.61
7.4.00.0090.00615.05
7.3.330.0000.00513.09
7.3.320.0030.00313.17
7.3.310.0050.00216.39
7.3.300.0000.00716.21
7.3.290.0040.01116.44
7.3.280.0080.00816.33
7.3.270.0100.01317.40
7.3.260.0140.00616.43
7.3.250.0080.00816.47
7.3.240.0030.01416.49
7.3.230.0160.00316.39
7.3.210.0060.01216.53
7.3.200.0140.00619.39
7.3.190.0190.00316.50
7.3.180.0120.00316.56
7.3.170.0060.00916.47
7.3.160.0080.01116.45
7.3.120.0050.00814.90
7.2.330.0100.01016.63
7.2.320.0100.00716.33
7.2.310.0140.00316.72
7.2.300.0120.00616.45
7.2.290.0080.00816.48
7.2.60.0060.01016.88
7.2.00.0120.00919.27
7.1.200.0070.00415.42
7.1.100.0000.01118.01
7.1.70.0070.00717.00
7.1.60.0130.00619.46
7.1.50.0070.01416.88
7.1.00.0030.07722.36
7.0.200.0000.00816.71
7.0.140.0030.07322.07
7.0.60.0130.08019.91
7.0.50.0030.04017.66
7.0.40.0000.04720.40
7.0.30.0230.03320.17
7.0.20.0300.08320.18
7.0.10.0070.04720.00
7.0.00.0170.04020.12
5.6.280.0030.07021.06
5.6.210.0070.06720.65
5.6.200.0030.05018.20
5.6.190.0100.08320.48
5.6.180.0170.04020.33
5.6.170.0230.06720.41
5.6.160.0070.07320.43
5.6.150.0070.08718.12
5.6.140.0100.07718.20
5.6.130.0070.07718.18
5.6.120.0000.05020.98
5.6.110.0130.07320.98
5.6.100.0100.08721.08
5.6.90.0100.08021.09
5.6.80.0070.07720.36
5.6.70.4670.03720.43
5.5.350.0130.05020.30
5.5.340.0030.08717.95
5.5.330.0130.07020.43
5.5.320.0270.08320.31
5.5.310.0300.05320.18
5.5.300.0000.05317.97
5.5.290.0070.08017.93
5.5.280.0000.05320.80
5.5.270.0130.04320.61
5.5.260.0030.08720.95
5.5.250.0030.08720.68
5.5.240.0230.05720.35
5.4.450.0100.05719.30
5.4.440.0800.04719.10
5.4.430.0830.05719.63
5.4.420.0630.00019.35
5.4.410.0100.05318.98
5.4.400.0270.05018.54
5.4.390.0130.06318.51
5.4.380.0230.05718.68
5.4.370.0400.04718.68
5.4.360.0470.03718.72
5.4.350.0080.03811.98
5.4.340.0080.04111.97
5.4.320.0050.04612.45
5.4.310.0060.03812.45
5.4.300.0050.04412.46
5.4.290.0160.09112.43
5.4.280.0070.09112.33
5.4.270.0180.07512.34
5.4.260.0170.06112.34
5.4.250.0130.05712.34
5.4.240.0150.05612.34
5.4.230.0080.06612.32
5.4.220.0060.06812.32
5.4.210.0120.05912.32
5.4.200.0090.07312.32
5.4.190.0120.05012.32
5.4.180.0090.05112.32
5.4.170.0150.07212.34
5.4.160.0120.05612.33
5.4.150.0090.06212.32
5.4.140.0130.06312.01
5.4.130.0110.06612.00
5.4.120.0110.06611.95
5.4.110.0140.05911.95
5.4.100.0100.06411.95
5.4.90.0100.06711.96
5.4.80.0090.05911.95
5.4.70.0080.05511.95
5.4.60.0120.04911.95
5.4.50.0120.05711.95
5.4.40.0140.05711.93
5.4.30.0120.05111.93
5.4.20.0090.07211.94
5.4.10.0150.05411.93
5.4.00.0140.08711.43
5.3.290.0060.04612.80
5.3.280.0120.05712.71
5.3.270.0090.06712.72
5.3.260.0100.05912.72
5.3.250.0070.04212.72
5.3.240.0130.03512.72
5.3.230.0070.04012.71
5.3.220.0070.03812.68
5.3.210.0070.05312.68
5.3.200.0100.04112.68
5.3.190.0130.04812.68
5.3.180.0200.04212.68
5.3.170.0170.05712.66
5.3.160.0080.04412.67
5.3.150.0110.05512.67
5.3.140.0140.04812.66
5.3.130.0070.05912.66
5.3.120.0100.04812.66
5.3.110.0100.05412.66
5.3.100.0120.05612.12
5.3.90.0100.05212.08
5.3.80.0080.05312.07
5.3.70.0080.05912.07
5.3.60.0060.05712.07
5.3.50.0090.05912.00
5.3.40.0270.05912.00
5.3.30.0150.06711.95
5.3.20.0090.05111.72
5.3.10.0080.04511.70
5.3.00.0180.05711.68
5.2.170.0140.0489.18
5.2.160.0080.0639.19
5.2.150.0060.0579.19
5.2.140.0100.0519.18
5.2.130.0080.0539.14
5.2.120.0070.0449.14
5.2.110.0070.0419.14
5.2.100.0060.0469.14
5.2.90.0120.0579.14
5.2.80.0110.0439.13
5.2.70.0060.0489.14
5.2.60.0060.0509.09
5.2.50.0090.0559.06
5.2.40.0080.0449.03
5.2.30.0080.0479.01
5.2.20.0100.0499.00
5.2.10.0070.0428.92
5.2.00.0090.0518.79
5.1.60.0050.0448.07
5.1.50.0100.0388.06
5.1.40.0070.0398.04
5.1.30.0060.0448.39
5.1.20.0090.0638.41
5.1.10.0180.0478.14
5.1.00.0150.0668.14
5.0.50.0080.0436.62
5.0.40.0050.0416.47
5.0.30.0100.0456.29
5.0.20.0080.0336.27
5.0.10.0050.0356.24
5.0.00.0090.0466.24
4.4.90.0040.0234.78
4.4.80.0110.0324.75
4.4.70.0100.0364.76
4.4.60.0060.0284.75
4.4.50.0040.0264.77
4.4.40.0100.0334.71
4.4.30.0100.0354.76
4.4.20.0050.0284.85
4.4.10.0080.0264.84
4.4.00.0000.0644.76
4.3.110.0060.0244.67
4.3.100.0090.0324.67
4.3.90.0110.0274.63
4.3.80.0080.0354.58
4.3.70.0060.0214.63
4.3.60.0050.0204.62
4.3.50.0020.0284.63
4.3.40.0050.0314.54
4.3.30.0050.0253.29
4.3.20.0040.0223.26
4.3.10.0030.0283.21
4.3.00.0200.0207.85

preferences:
44.32 ms | 401 KiB | 5 Q