3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a' => 'a', 'b' => 'b', 'c' => 'c'); $oldKey = 'b'; $newKey = 'new'; array_splice($arr, 1, 1, array($newKey => $arr[$oldKey])); var_dump($arr);

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)
8.3.60.0140.00018.30
8.3.50.0090.00922.00
8.3.40.0110.00718.75
8.3.30.0070.00719.01
8.3.20.0040.00420.10
8.3.10.0030.00620.36
8.3.00.0070.00317.23
8.2.180.0110.00716.50
8.2.170.0070.00722.96
8.2.160.0070.01120.39
8.2.150.0040.00424.18
8.2.140.0070.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.96
8.2.110.0030.00622.11
8.2.100.0040.00817.72
8.2.90.0040.00419.26
8.2.80.0040.00417.97
8.2.70.0030.00617.50
8.2.60.0050.00517.93
8.2.50.0000.00918.07
8.2.40.0000.00918.27
8.2.30.0070.00019.33
8.2.20.0000.00717.67
8.2.10.0040.00417.98
8.2.00.0000.00817.58
8.1.280.0090.00625.92
8.1.270.0040.00423.97
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0050.00523.91
8.1.230.0060.00618.91
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.00917.10
8.1.190.0080.00017.22
8.1.180.0070.00018.10
8.1.170.0000.00818.33
8.1.160.0040.00421.81
8.1.150.0030.00318.81
8.1.140.0070.00017.38
8.1.130.0000.00717.73
8.1.120.0040.00417.46
8.1.110.0040.00417.43
8.1.100.0040.00417.28
8.1.90.0040.00317.36
8.1.80.0040.00417.41
8.1.70.0000.00717.34
8.1.60.0060.00317.43
8.1.50.0000.00817.52
8.1.40.0040.00417.43
8.1.30.0000.00817.46
8.1.20.0000.00717.55
8.1.10.0040.00417.55
8.1.00.0090.00017.49
8.0.300.0040.00418.77
8.0.290.0020.00516.63
8.0.280.0030.00318.39
8.0.270.0070.00017.12
8.0.260.0070.00017.05
8.0.250.0000.00716.94
8.0.240.0000.00816.76
8.0.230.0000.00716.79
8.0.220.0030.00316.84
8.0.210.0030.00316.69
8.0.200.0080.00016.75
8.0.190.0090.00016.85
8.0.180.0000.00716.73
8.0.170.0030.00516.74
8.0.160.0050.00216.78
8.0.150.0070.00016.71
8.0.140.0070.00016.73
8.0.130.0000.00513.20
8.0.120.0070.00016.73
8.0.110.0040.00416.80
8.0.100.0000.00716.80
8.0.90.0040.00416.86
8.0.80.0070.00716.79
8.0.70.0070.00016.64
8.0.60.0070.00016.85
8.0.50.0080.00016.69
8.0.30.0060.01316.86
8.0.20.0110.01117.40
8.0.10.0030.00316.83
8.0.00.0090.00916.69
7.4.330.0020.00215.00
7.4.320.0060.00016.57
7.4.300.0030.00316.57
7.4.290.0040.00416.36
7.4.280.0040.00416.50
7.4.270.0000.00716.59
7.4.260.0030.00316.50
7.4.250.0030.00616.40
7.4.240.0000.00716.51
7.4.230.0000.00716.53
7.4.220.0070.01116.37
7.4.210.0070.00716.55
7.4.200.0030.00316.50
7.4.160.0110.00416.24
7.4.150.0100.00717.40
7.4.140.0140.00817.86
7.4.130.0080.01016.36
7.4.120.0100.00716.41
7.4.110.0170.00016.43
7.4.100.0090.00916.47
7.4.90.0030.01316.45
7.4.80.0060.01219.39
7.4.70.0090.00916.39
7.4.60.0100.00616.19
7.4.50.0050.00016.46
7.4.40.0050.01116.26
7.4.30.0110.00616.21
7.4.10.0050.01316.35
7.4.00.0030.01415.73
7.3.330.0050.00013.09
7.3.320.0000.00513.10
7.3.310.0000.00716.13
7.3.300.0050.00216.28
7.3.290.0090.01116.21
7.3.280.0090.00516.25
7.3.270.0090.00917.40
7.3.260.0100.01416.22
7.3.250.0090.00916.25
7.3.240.0060.01016.29
7.3.230.0030.01316.39
7.3.210.0080.00816.07
7.3.200.0070.01319.39
7.3.190.0070.00716.23
7.3.180.0070.00716.60
7.3.170.0160.01216.27
7.3.160.0150.00616.21
7.3.130.0090.01016.10
7.3.120.0020.01416.18
7.3.110.0070.00916.43
7.3.100.0030.01216.09
7.3.90.0080.00816.20
7.3.80.0050.01016.32
7.3.70.0040.01516.13
7.3.60.0090.00916.27
7.3.50.0080.00816.24
7.3.40.0020.01316.09
7.3.30.0110.00116.32
7.3.20.0100.00218.11
7.3.10.0070.01018.11
7.3.00.0050.00818.03
7.2.330.0090.00916.33
7.2.320.0100.01016.34
7.2.310.0100.00716.20
7.2.300.0100.00616.45
7.2.290.0070.01516.33
7.2.260.0090.01116.38
7.2.250.0090.00816.51
7.2.240.0040.01116.42
7.2.230.0060.01216.43
7.2.220.0050.01216.42
7.2.210.0050.01116.40
7.2.200.0090.00716.38
7.2.190.0020.01316.25
7.2.180.0050.01116.38
7.2.170.0000.01316.41
7.2.160.0040.01216.42
7.2.150.0060.00918.18
7.2.140.0050.00818.27
7.2.130.0070.00918.23
7.2.120.0090.00718.16
7.2.110.0060.00818.29
7.2.100.0050.01218.19
7.2.90.0060.01118.08
7.2.80.0090.00818.25
7.2.70.0140.00718.09
7.2.60.0080.01618.28
7.2.50.0130.00818.23
7.2.40.0120.01218.21
7.2.30.0060.01218.20
7.2.20.0040.00918.21
7.2.10.0050.00918.32
7.2.00.0090.00918.37
7.1.330.0080.00517.42
7.1.320.0080.00617.44
7.1.310.0030.01017.33
7.1.300.0070.00417.26
7.1.290.0040.00917.40
7.1.280.0100.00717.29
7.1.270.0070.00717.37
7.1.260.0050.01117.39
7.1.250.0050.01017.14
7.1.240.0080.00517.26
7.1.230.0100.00517.29
7.1.220.0080.00617.22
7.1.210.0100.00417.11
7.1.200.0060.00716.76
7.1.190.0150.00617.18
7.1.180.0060.01217.26
7.1.170.0080.01317.23
7.1.160.0140.00817.30
7.1.150.0100.00817.35
7.1.140.0060.00517.18
7.1.130.0080.00817.19
7.1.120.0060.01017.20
7.1.110.0080.00917.18
7.1.100.0080.00916.84
7.1.90.0060.00817.13
7.1.80.0060.00717.30
7.1.70.0050.01017.10
7.1.60.0050.01218.07
7.1.50.0130.00723.02
7.1.40.0040.01217.34
7.1.30.0070.00517.41
7.1.20.0080.00617.36
7.1.10.0090.00617.26
7.1.00.0070.03218.99
7.0.330.0110.00316.99
7.0.320.0050.00816.98
7.0.310.0060.00916.80
7.0.300.0150.00317.04
7.0.290.0060.01416.95
7.0.280.0090.00616.84
7.0.270.0090.00516.86
7.0.260.0100.00516.93
7.0.250.0060.01017.05
7.0.240.0060.01016.97
7.0.230.0100.00516.98
7.0.220.0020.01217.03
7.0.210.0030.01017.02
7.0.200.0050.00716.88
7.0.190.0020.01317.00
7.0.180.0100.00516.90
7.0.170.0060.00317.01
7.0.160.0050.00816.97
7.0.150.0070.00916.99
7.0.140.0080.02818.73
7.0.130.0060.01416.82
7.0.120.0090.00917.00
7.0.110.0140.00516.88
7.0.100.0120.00816.89
7.0.90.0140.00616.89
7.0.80.0070.01016.96
7.0.70.0070.01116.96
7.0.60.0090.02917.81
7.0.50.0070.02317.29
7.0.40.0060.02116.61
7.0.30.0160.02016.68
7.0.20.0120.03816.60
7.0.10.0080.02516.61
7.0.00.0070.02116.66
5.6.400.0060.00815.91
5.6.390.0080.00815.94
5.6.380.0060.00715.98
5.6.370.0110.00515.88
5.6.360.0100.00815.86
5.6.350.0090.01315.83
5.6.340.0000.01415.71
5.6.330.0060.00815.63
5.6.320.0050.00915.90
5.6.310.0070.00615.81
5.6.300.0060.01115.77
5.6.290.0110.01115.98
5.6.280.0080.03217.38
5.6.270.0110.01115.86
5.6.260.0130.00715.82
5.6.250.0140.00515.68
5.6.240.0090.01015.75
5.6.230.0110.00315.75
5.6.220.0050.01115.88
5.6.210.0090.01717.33
5.6.200.0110.02516.57
5.6.190.0060.02617.40
5.6.180.0130.02617.46
5.6.170.0170.02917.38
5.6.160.0120.03217.32
5.6.150.0110.03016.45
5.6.140.0060.02016.62
5.6.130.0100.02016.64
5.6.120.0100.02817.56
5.6.110.0090.03817.40
5.6.100.0100.03417.46
5.6.90.0070.03017.44
5.6.80.0110.02917.27
5.6.70.0090.01115.67
5.6.60.0140.00615.49
5.6.50.0110.01215.76
5.6.40.0120.00715.75
5.6.30.0090.00915.79
5.6.20.0100.00915.80
5.6.10.0110.00715.60
5.6.00.0120.00915.74
5.5.380.0160.00515.73
5.5.370.0100.01015.65
5.5.360.0100.01015.81
5.5.350.0170.03217.34
5.5.340.0110.03316.52
5.5.330.0100.03417.11
5.5.320.0180.03317.09
5.5.310.0120.02317.17
5.5.300.0080.02416.48
5.5.290.0090.03216.35
5.5.280.0130.01417.51
5.5.270.0080.03117.47
5.5.260.0130.03217.43
5.5.250.0120.03117.23
5.5.240.0090.02917.25
5.5.230.0110.01015.64
5.5.220.0120.01015.70
5.5.210.0120.00715.49
5.5.200.0110.01115.52
5.5.190.0080.01215.47
5.5.180.0070.01315.56
5.5.170.0140.00615.67
5.5.160.0110.01015.52
5.5.150.0120.00615.92
5.5.140.0050.01315.65
5.5.130.0080.01115.61
5.5.120.0090.01215.71
5.5.110.0060.01215.48
5.5.100.0100.01015.65
5.5.90.0100.01015.61
5.5.80.0110.00715.57
5.5.70.0120.00915.65
5.5.60.0100.01115.59
5.5.50.0110.01015.70
5.5.40.0090.00915.51
5.5.30.0140.00715.70
5.5.20.0110.00815.69
5.5.10.0100.01115.67
5.5.00.0120.00615.69
5.4.450.0160.01914.81
5.4.440.0160.02114.85
5.4.430.0340.02014.76
5.4.420.0160.01814.90
5.4.410.0160.01814.78
5.4.400.0140.01814.79
5.4.390.0150.01614.83
5.4.380.0180.02014.56
5.4.370.0170.01914.56
5.4.360.0160.02114.63
5.4.350.0170.02414.55
5.4.340.0170.02114.53
5.4.330.0070.00812.67
5.4.320.0070.01812.61
5.4.310.0040.01812.57
5.4.300.0060.01712.55
5.4.290.0070.01912.58
5.4.280.0050.01712.45
5.4.270.0060.01712.48
5.4.260.0080.01712.48
5.4.250.0060.01812.56
5.4.240.0060.01512.56
5.4.230.0070.01812.53
5.4.220.0080.01612.50
5.4.210.0070.01712.46
5.4.200.0070.01712.57
5.4.190.0060.01712.55
5.4.180.0050.01912.55
5.4.170.0060.01712.45
5.4.160.0080.01712.51
5.4.150.0070.01512.55
5.4.140.0070.01712.38
5.4.130.0050.02012.42
5.4.120.0060.01712.38
5.4.110.0080.02112.38
5.4.100.0080.01712.33
5.4.90.0100.01312.31
5.4.80.0060.02012.38
5.4.70.0100.01312.36
5.4.60.0080.01612.41
5.4.50.0090.01312.31
5.4.40.0100.01412.35
5.4.30.0060.01512.38
5.4.20.0070.01612.33
5.4.10.0060.01612.40
5.4.00.0060.01912.23
5.3.290.0030.04112.80
5.3.280.0080.04612.71
5.3.270.0060.03712.72
5.3.260.0040.04712.72
5.3.250.0030.03912.72
5.3.240.0050.04312.72
5.3.230.0080.04012.71
5.3.220.0010.04012.68
5.3.210.0090.03812.68
5.3.200.0050.03612.68
5.3.190.0090.03812.68
5.3.180.0050.04312.67
5.3.170.0030.03912.67
5.3.160.0080.03312.67
5.3.150.0050.03812.68
5.3.140.0080.03412.66
5.3.130.0040.04012.66
5.3.120.0090.04112.66
5.3.110.0070.03712.66
5.3.100.0060.03612.12
5.3.90.0060.03612.08
5.3.80.0080.03312.07
5.3.70.0040.04412.07
5.3.60.0090.03812.06
5.3.50.0050.03712.00
5.3.40.0080.04412.00
5.3.30.0060.03811.95
5.3.20.0070.03911.72
5.3.10.0020.03811.69
5.3.00.0060.03511.68
5.2.170.0040.0309.18
5.2.160.0050.0389.18
5.2.150.0080.0379.19
5.2.140.0050.0319.17
5.2.130.0030.0299.13
5.2.120.0060.0269.14
5.2.110.0080.0449.14
5.2.100.0050.0299.14
5.2.90.0030.0319.14
5.2.80.0040.0309.14
5.2.70.0120.0359.13
5.2.60.0070.0329.09
5.2.50.0050.0299.05
5.2.40.0080.0339.03
5.2.30.0070.0309.00
5.2.20.0060.0359.00
5.2.10.0080.0278.92
5.2.00.0030.0308.77
5.1.60.0020.0258.06
5.1.50.0070.0228.06
5.1.40.0030.0268.04
5.1.30.0030.0318.39
5.1.20.0020.0298.41
5.1.10.0030.0278.14
5.1.00.0060.0238.14
5.0.50.0060.0176.61
5.0.40.0070.0156.47
5.0.30.0030.0316.29
5.0.20.0020.0216.26
5.0.10.0040.0186.23
5.0.00.0050.0356.23
4.4.90.0020.0164.78
4.4.80.0020.0154.76
4.4.70.0040.0144.75
4.4.60.0040.0144.76
4.4.50.0040.0144.77
4.4.40.0050.0234.71
4.4.30.0040.0144.76
4.4.20.0040.0154.84
4.4.10.0050.0174.85
4.4.00.0010.0274.76
4.3.110.0020.0164.67
4.3.100.0030.0144.66
4.3.90.0010.0164.63
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0050.0134.63
4.3.50.0070.0124.63
4.3.40.0060.0234.54
4.3.30.0040.0153.29
4.3.20.0060.0173.26
4.3.10.0020.0223.22
4.3.00.0170.01316.73

preferences:
42.92 ms | 401 KiB | 5 Q