3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = [1 => 'foo', 2 => 'bar']; $a2 = [2 => 'bar2', 3 => 'baz']; $a3 = []; var_dump($a1); var_dump(array_replace($a1, $a2)); var_dump(array_replace($a1, $a3));

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)
8.3.60.0070.01016.25
8.3.50.0100.01221.84
8.3.40.0100.00318.54
8.3.30.0030.01018.93
8.3.20.0040.00420.24
8.3.10.0080.00023.53
8.3.00.0050.00319.13
8.2.180.0120.00316.38
8.2.170.0110.00422.96
8.2.160.0000.01320.47
8.2.150.0020.00524.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00422.25
8.2.110.0040.00422.25
8.2.100.0080.00417.78
8.2.90.0070.00019.17
8.2.80.0040.00417.97
8.2.70.0060.00317.13
8.2.60.0060.00317.80
8.2.50.0040.00718.07
8.2.40.0030.00519.57
8.2.30.0080.00019.84
8.2.20.0050.00217.52
8.2.10.0000.00717.91
8.2.00.0040.00417.67
8.1.280.0140.00725.92
8.1.270.0100.00623.96
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0070.00323.91
8.1.230.0060.00619.15
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0050.00517.13
8.1.190.0000.00817.23
8.1.180.0110.00018.10
8.1.170.0040.00418.59
8.1.160.0040.00421.86
8.1.150.0000.00918.57
8.1.140.0000.00817.29
8.1.130.0000.00717.72
8.1.120.0070.00017.30
8.1.110.0040.00417.35
8.1.100.0000.00717.34
8.1.90.0030.00417.34
8.1.80.0040.00417.44
8.1.70.0040.00417.27
8.1.60.0000.00817.52
8.1.50.0080.00017.46
8.1.40.0040.00417.43
8.1.30.0000.00917.51
8.1.20.0030.00517.55
8.1.10.0020.00517.40
8.1.00.0080.00017.26
8.0.300.0000.00820.80
8.0.290.0000.00717.04
8.0.280.0000.00718.38
8.0.270.0030.00317.20
8.0.260.0000.00617.18
8.0.250.0000.00716.76
8.0.240.0030.00316.93
8.0.230.0030.00316.90
8.0.220.0040.00416.81
8.0.210.0000.00716.79
8.0.200.0060.00016.79
8.0.190.0030.00616.92
8.0.180.0040.00416.86
8.0.170.0040.00416.77
8.0.160.0030.00316.76
8.0.150.0040.00416.83
8.0.140.0000.00716.67
8.0.130.0030.00313.33
8.0.120.0050.00316.68
8.0.110.0000.00816.72
8.0.100.0000.00716.65
8.0.90.0050.00216.87
8.0.80.0000.01616.85
8.0.70.0080.00016.80
8.0.60.0050.00216.70
8.0.50.0030.00516.60
8.0.30.0060.01317.04
8.0.20.0090.01217.40
8.0.10.0040.00416.93
8.0.00.0090.01116.65
7.4.330.0000.00515.00
7.4.320.0060.00016.44
7.4.300.0030.00316.44
7.4.290.0040.00416.52
7.4.280.0040.00416.50
7.4.270.0030.00316.52
7.4.260.0030.00316.51
7.4.250.0020.00516.50
7.4.240.0040.00416.43
7.4.230.0030.00316.54
7.4.220.0080.01116.56
7.4.210.0050.00916.46
7.4.200.0040.00416.62
7.4.190.0000.00816.50
7.4.160.0090.00916.46
7.4.150.0140.00417.40
7.4.140.0090.00917.86
7.4.130.0070.01016.33
7.4.120.0090.00816.38
7.4.110.0130.01016.31
7.4.100.0000.01916.29
7.4.90.0120.00616.34
7.4.80.0090.01219.39
7.4.70.0040.01716.39
7.4.60.0170.00016.24
7.4.50.0040.00416.24
7.4.40.0060.01216.36
7.4.30.0170.00016.50
7.4.00.0090.00914.79
7.3.330.0000.00512.94
7.3.320.0000.00613.06
7.3.310.0050.00216.18
7.3.300.0030.00316.12
7.3.290.0030.01016.15
7.3.280.0090.01216.14
7.3.270.0030.01517.40
7.3.260.0090.00916.39
7.3.250.0190.00216.13
7.3.240.0080.01216.17
7.3.230.0030.01316.39
7.3.210.0130.00616.09
7.3.200.0080.01119.39
7.3.190.0160.00316.18
7.3.180.0060.00916.11
7.3.170.0190.00316.27
7.3.160.0000.01616.23
7.3.120.0090.00814.68
7.3.110.0070.01114.69
7.3.100.0040.01114.68
7.3.90.0060.00914.62
7.3.80.0030.01114.52
7.3.70.0030.01114.69
7.3.60.0070.00714.51
7.3.50.0060.00614.56
7.3.40.0050.00714.53
7.3.30.0060.00714.76
7.3.20.0050.00516.46
7.3.10.0060.00616.35
7.3.00.0110.00516.56
7.2.330.0060.01316.45
7.2.320.0080.00816.33
7.2.310.0120.00916.21
7.2.300.0110.00616.51
7.2.290.0130.00316.38
7.2.250.0110.00714.69
7.2.240.0030.01314.86
7.2.230.0070.00814.77
7.2.220.0070.01414.70
7.2.210.0070.00714.90
7.2.200.0050.00814.80
7.2.190.0030.01014.66
7.2.180.0070.00514.72
7.2.170.0090.00514.62
7.2.130.0040.01216.64
7.2.120.0110.00316.70
7.2.110.0040.00816.60
7.2.100.0140.00016.54
7.2.90.0060.00916.66
7.2.80.0090.00616.65
7.2.70.0070.00716.57
7.2.60.0080.00616.66
7.2.50.0120.00616.63
7.2.40.0080.00416.55
7.2.30.0040.01116.71
7.2.20.0090.00616.63
7.2.10.0060.00816.52
7.2.00.0090.00817.91
7.1.330.0070.00915.75
7.1.320.0050.01115.71
7.1.310.0060.00915.51
7.1.300.0050.00815.57
7.1.290.0070.00715.37
7.1.280.0090.00615.74
7.1.270.0050.00615.66
7.1.260.0070.00615.68
7.1.250.0090.00415.88
7.1.100.0090.00318.05
7.1.70.0040.00417.06
7.1.60.0060.00616.95
7.1.50.0240.00816.78
7.1.00.0130.06722.40
7.0.200.0030.01316.73
7.0.140.0030.07322.00
7.0.60.0070.04719.86
7.0.50.0070.06017.83
7.0.40.0030.04320.41
7.0.30.0270.07720.04
7.0.20.0200.06320.09
7.0.10.0070.08320.02
7.0.00.0230.05720.16
5.6.280.0070.06721.07
5.6.210.0070.09020.75
5.6.200.0070.08018.16
5.6.190.0170.04720.32
5.6.180.0100.04720.61
5.6.170.0230.08020.51
5.6.160.0030.08720.62
5.6.150.0030.04318.20
5.6.140.0030.05018.12
5.6.130.0100.05018.21
5.6.120.0000.04320.98
5.6.110.0070.08721.10
5.6.100.0100.04321.11
5.6.90.0030.05020.96
5.6.80.0170.02720.35
5.5.350.3970.04720.36
5.5.340.0070.07017.92
5.5.330.0130.08020.13
5.5.320.0370.07320.24
5.5.310.0400.04320.24
5.5.300.0030.08717.93
5.5.290.0030.04017.88
5.5.280.0100.04720.64
5.5.270.0070.04320.83
5.5.260.0130.07720.86
5.5.250.0000.04320.45
5.5.240.0100.05720.03
5.4.450.0170.05719.41
5.4.440.0130.05319.27
5.4.430.0100.05719.42
5.4.420.0130.05019.41
5.4.410.0170.04719.12
5.4.400.0230.06019.17
5.4.390.0170.06019.32
5.4.380.0070.06018.59
5.4.370.0200.06718.72
5.4.360.0130.05018.72
5.4.350.0170.05018.50
5.4.340.0100.05718.46
5.4.320.0060.03612.45
5.4.310.0130.03412.45
5.4.300.0050.03712.45
5.4.290.0110.04312.43
5.4.280.0090.03412.33
5.4.270.0100.03812.33
5.4.260.0130.03512.33
5.4.250.0090.04012.33
5.4.240.0150.04212.33
5.4.230.0060.03912.32
5.4.220.0080.03712.32
5.4.210.0090.03412.32
5.4.200.0090.05012.32
5.4.190.0110.03512.32
5.4.180.0060.04112.32
5.4.170.0080.03912.33
5.4.160.0070.03812.33
5.4.150.0090.03412.32
5.4.140.0080.04012.00
5.4.130.0090.03711.99
5.4.120.0070.03911.95
5.4.110.0050.03911.95
5.4.100.0070.03611.95
5.4.90.0100.04011.95
5.4.80.0060.04711.95
5.4.70.0070.05211.94
5.4.60.0080.05011.95
5.4.50.0080.06011.94
5.4.40.0100.05211.93
5.4.30.0100.04711.93
5.4.20.0070.05011.93
5.4.10.0080.05011.93
5.4.00.0070.05111.42
5.3.290.0120.04712.80
5.3.280.0090.06712.71
5.3.270.0120.06812.73
5.3.260.0120.06612.72
5.3.250.0090.05812.72
5.3.240.0090.05812.72
5.3.230.0120.06112.70
5.3.220.0120.05812.68
5.3.210.0110.05712.68
5.3.200.0120.05012.68
5.3.190.0110.05412.67
5.3.180.0080.06012.67
5.3.170.0060.05912.67
5.3.160.0110.05412.67
5.3.150.0130.05212.68
5.3.140.0110.04412.66
5.3.130.0050.04112.66
5.3.120.0080.04512.66
5.3.110.0130.05712.66
5.3.100.0100.04612.12
5.3.90.0090.03512.08
5.3.80.0090.03712.07
5.3.70.0140.03712.08
5.3.60.0090.04312.06
5.3.50.0050.03712.00
5.3.40.0100.03312.00
5.3.30.0040.03711.95
5.3.20.0040.03811.73
5.3.10.0090.03711.70
5.3.00.0060.03811.68
5.2.170.0070.0309.18
5.2.160.0030.0329.18
5.2.150.0050.0319.18
5.2.140.0080.0309.18
5.2.130.0090.0309.14
5.2.120.0070.0279.14
5.2.110.0090.0369.14
5.2.100.0040.0329.14
5.2.90.0060.0309.14
5.2.80.0060.0329.14
5.2.70.0040.0329.14
5.2.60.0030.0319.09
5.2.50.0050.0309.05
5.2.40.0060.0289.04
5.2.30.0040.0379.02
5.2.20.0070.0309.01
5.2.10.0090.0348.93
5.2.00.0060.0288.78
5.1.60.0060.0248.07
5.1.50.0060.0268.06
5.1.40.0080.0228.05
5.1.30.0030.0298.40
5.1.20.0070.0348.42
5.1.10.0040.0358.14
5.1.00.0070.0328.14
5.0.50.0070.0266.62
5.0.40.0090.0176.48
5.0.30.0030.0356.29
5.0.20.0040.0216.27
5.0.10.0120.0306.24
5.0.00.0130.0446.23
4.4.90.0050.0274.78
4.4.80.0060.0224.76
4.4.70.0050.0204.75
4.4.60.0050.0204.76
4.4.50.0050.0204.77
4.4.40.0020.0314.71
4.4.30.0030.0164.76
4.4.20.0000.0174.85
4.4.10.0040.0144.84
4.4.00.0040.0244.75
4.3.110.0050.0134.67
4.3.100.0050.0124.67
4.3.90.0040.0144.63
4.3.80.0010.0294.58
4.3.70.0010.0174.63
4.3.60.0030.0154.62
4.3.50.0050.0164.63
4.3.40.0020.0254.54
4.3.30.0020.0163.28
4.3.20.0010.0173.26
4.3.10.0020.0163.22
4.3.00.0070.0208.74

preferences:
46.82 ms | 401 KiB | 5 Q