3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [1=>[[100]], 2=>[[200]]]; $ref = &$arr[1]; $ref[] = array_merge([], [101]); var_dump($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)
8.3.60.0100.01016.50
8.3.50.0100.00822.00
8.3.40.0110.00418.39
8.3.30.0110.00318.98
8.3.20.0070.00020.13
8.3.10.0040.00423.53
8.3.00.0040.00419.38
8.2.180.0150.00018.41
8.2.170.0070.00722.96
8.2.160.0030.01020.46
8.2.150.0000.00724.18
8.2.140.0070.00024.66
8.2.130.0040.01126.16
8.2.120.0080.00022.26
8.2.110.0060.00322.14
8.2.100.0080.00417.78
8.2.90.0000.00819.22
8.2.80.0040.00418.03
8.2.70.0000.00917.63
8.2.60.0050.00217.80
8.2.50.0000.00818.07
8.2.40.0030.00519.95
8.2.30.0000.00818.03
8.2.20.0040.00417.55
8.2.10.0000.00817.96
8.2.00.0070.00317.67
8.1.280.0140.00025.92
8.1.270.0050.00322.03
8.1.260.0000.00926.35
8.1.250.0000.00728.09
8.1.240.0030.00623.81
8.1.230.0070.00319.11
8.1.220.0000.00717.74
8.1.210.0070.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00817.30
8.1.180.0000.00818.10
8.1.170.0090.00018.58
8.1.160.0040.00421.86
8.1.150.0000.00718.63
8.1.140.0040.00417.45
8.1.130.0000.00717.80
8.1.120.0030.00417.35
8.1.110.0040.00417.28
8.1.100.0030.00317.25
8.1.90.0000.00717.43
8.1.80.0000.00717.40
8.1.70.0070.00017.33
8.1.60.0080.00017.51
8.1.50.0000.00817.34
8.1.40.0000.00717.50
8.1.30.0040.00417.53
8.1.20.0040.00417.64
8.1.10.0000.00717.48
8.1.00.0030.00617.34
8.0.300.0070.00019.09
8.0.290.0000.00817.18
8.0.280.0000.00718.37
8.0.270.0070.00017.14
8.0.260.0000.00617.20
8.0.250.0000.00716.88
8.0.240.0060.00016.91
8.0.230.0000.00716.90
8.0.220.0000.00716.83
8.0.210.0070.00016.80
8.0.200.0060.00016.88
8.0.190.0040.00416.95
8.0.180.0020.00516.72
8.0.170.0000.00816.82
8.0.160.0000.00716.80
8.0.150.0060.00316.73
8.0.140.0000.00716.67
8.0.130.0030.00313.32
8.0.120.0040.00416.71
8.0.110.0000.00816.77
8.0.100.0000.00716.63
8.0.90.0040.00416.69
8.0.80.0040.01116.81
8.0.70.0030.00316.76
8.0.60.0030.00616.82
8.0.50.0000.00816.85
8.0.30.0100.01017.04
8.0.20.0070.01017.40
8.0.10.0000.00816.80
8.0.00.0050.01216.64
7.4.330.0020.00215.03
7.4.320.0060.00016.53
7.4.300.0000.00616.43
7.4.290.0000.00616.54
7.4.280.0000.00816.37
7.4.270.0000.00716.49
7.4.260.0000.00816.34
7.4.250.0030.00516.48
7.4.240.0030.00516.51
7.4.230.0040.00416.50
7.4.220.0100.00716.56
7.4.210.0030.01216.43
7.4.200.0030.00316.53
7.4.190.0070.00016.24
7.4.160.0110.00416.48
7.4.150.0030.01617.40
7.4.140.0100.00817.86
7.4.130.0110.01016.42
7.4.120.0070.00916.42
7.4.110.0080.00816.40
7.4.100.0150.00416.25
7.4.90.0090.01016.39
7.4.80.0130.00919.39
7.4.70.0000.01616.44
7.4.60.0120.00516.42
7.4.50.0040.00416.57
7.4.40.0080.00822.77
7.4.30.0030.01416.43
7.4.00.0060.01114.74
7.3.330.0000.00513.05
7.3.320.0050.00013.09
7.3.310.0040.00416.34
7.3.300.0040.00416.28
7.3.290.0080.00616.21
7.3.280.0090.00716.24
7.3.270.0080.00817.40
7.3.260.0040.01416.60
7.3.250.0110.00716.46
7.3.240.0110.00716.27
7.3.230.0070.01116.39
7.3.210.0090.01216.30
7.3.200.0070.01619.39
7.3.190.0110.00716.30
7.3.180.0130.00316.53
7.3.170.0090.00616.60
7.3.160.0030.01316.31
7.3.120.0060.01114.96
7.3.110.0060.01114.88
7.3.100.0110.00514.77
7.3.90.0050.00814.79
7.3.80.0050.01014.80
7.3.70.0060.00414.74
7.3.60.0100.00514.71
7.3.50.0030.01114.71
7.3.40.0040.00514.60
7.3.30.0050.00814.78
7.3.20.0060.00616.63
7.3.10.0040.00716.53
7.3.00.0080.00616.41
7.2.330.0040.01416.35
7.2.320.0090.01316.64
7.2.310.0130.01016.50
7.2.300.0120.01216.55
7.2.290.0160.00916.77
7.2.250.0060.01215.01
7.2.240.0070.00914.87
7.2.230.0040.00915.06
7.2.220.0040.01314.89
7.2.210.0070.00914.97
7.2.200.0060.00614.83
7.2.190.0100.00614.78
7.2.180.0130.00214.90
7.2.170.0070.00814.95
7.2.160.0030.01014.94
7.2.150.0030.01316.77
7.2.140.0100.00316.79
7.2.130.0030.01016.88
7.2.120.0030.00816.80
7.2.110.0030.00916.84
7.2.100.0030.01016.84
7.2.90.0070.00616.88
7.2.80.0090.00616.82
7.2.70.0020.01016.83
7.2.60.0080.00616.84
7.2.50.0050.01116.74
7.2.40.0040.00916.93
7.2.30.0080.00516.81
7.2.20.0080.00616.83
7.2.10.0020.01216.81
7.2.00.0040.00917.54
7.1.330.0110.00615.92
7.1.320.0060.00715.61
7.1.310.0040.01215.57
7.1.300.0090.00615.79
7.1.290.0080.00415.71
7.1.280.0060.00515.68
7.1.270.0030.01015.72
7.1.260.0050.00815.87
7.1.250.0030.00815.64
7.1.240.0030.00515.81
7.1.230.0040.00815.80
7.1.220.0030.00615.46
7.1.210.0100.00615.84
7.1.200.0040.00915.67
7.1.190.0030.01015.71
7.1.180.0150.00015.83
7.1.170.0070.01015.91
7.1.160.0000.00915.76
7.1.150.0070.00715.61
7.1.140.0040.01215.59
7.1.130.0040.00715.88
7.1.120.0070.00715.66
7.1.110.0070.00315.94
7.1.100.0040.00716.04
7.1.90.0070.00315.93
7.1.80.0030.01015.53
7.1.70.0060.00416.38
7.1.60.0060.01217.58
7.1.50.0090.01016.30
7.1.40.0030.00915.78
7.1.30.0070.00715.57
7.1.20.0060.00315.63
7.1.10.0000.01415.63
7.1.00.0060.03819.16
7.0.330.0050.00515.52
7.0.320.0070.00715.39
7.0.310.0040.00415.24
7.0.300.0060.01015.38
7.0.290.0140.00015.60
7.0.280.0000.01415.40
7.0.270.0100.00015.26
7.0.260.0040.01115.44
7.0.250.0100.00315.25
7.0.240.0030.01015.59
7.0.230.0000.01215.30
7.0.220.0070.00715.42
7.0.210.0030.00615.54
7.0.200.0060.00516.16
7.0.190.0040.00715.38
7.0.180.0000.01215.34
7.0.170.0000.01315.41
7.0.160.0040.00815.42
7.0.150.0040.01115.46
7.0.140.0050.03718.79
7.0.130.0030.01015.57
7.0.120.0030.01015.58
7.0.110.0000.00915.26
7.0.100.0060.00915.43
7.0.90.0000.01215.31
7.0.80.0000.01215.06
7.0.70.0000.01115.40
7.0.60.0110.04217.75
7.0.50.0030.02316.69
7.0.40.0060.04816.77
7.0.30.0270.02516.69
7.0.20.0150.04516.98
7.0.10.0160.02816.79
7.0.00.0040.02416.82
5.6.400.0030.00914.10
5.6.390.0000.00813.78
5.6.380.0030.00713.94
5.6.370.0000.01114.34
5.6.360.0070.00414.07
5.6.350.0080.00614.03
5.6.340.0030.00914.34
5.6.330.0090.00014.01
5.6.320.0030.01014.03
5.6.310.0080.00314.33
5.6.300.0140.00014.56
5.6.290.0040.00714.16
5.6.280.0030.04017.88
5.6.270.0030.00714.23
5.6.260.0070.01014.17
5.6.250.0030.01214.41
5.6.240.0070.01014.33
5.6.230.0000.01514.34
5.6.220.0030.00914.35
5.6.210.0080.02717.54
5.6.200.0060.04716.30
5.6.190.0080.02217.24
5.6.180.0230.03617.26
5.6.170.0170.02717.28
5.6.160.0020.03517.43
5.6.150.0060.03616.28
5.6.140.0020.05016.16
5.6.130.0030.04616.37
5.6.120.0080.03717.78
5.6.110.0100.04017.58
5.6.100.0090.01817.58
5.6.90.0080.04717.62
5.6.80.0050.04717.19
5.6.70.1730.02717.19
5.6.60.0090.00914.14
5.6.50.0000.01514.01
5.6.40.0030.00614.52
5.6.30.0070.00714.23
5.6.20.0070.00714.05
5.6.10.0060.01014.46
5.6.00.0070.00713.82
5.5.380.0070.00714.28
5.5.370.0060.00913.98
5.5.360.0030.00714.13
5.5.350.0030.04517.21
5.5.340.0030.03916.12
5.5.330.0050.02217.21
5.5.320.0210.03717.34
5.5.310.0200.04117.23
5.5.300.0080.04316.17
5.5.290.0070.03716.17
5.5.280.0100.04317.48
5.5.270.0020.03417.30
5.5.260.0080.04817.43
5.5.250.0130.03717.45
5.5.240.0120.02517.13
5.5.230.0130.00014.00
5.5.220.0060.01214.25
5.5.210.0090.00914.13
5.5.200.0120.00314.19
5.5.190.0100.00314.42
5.5.180.0030.00714.09
5.5.170.0060.00913.97
5.5.160.0030.00914.27
5.5.150.0030.00814.10
5.5.140.0090.00614.06
5.5.130.0080.00614.29
5.5.120.0030.00714.38
5.5.110.0000.01414.41
5.5.100.0030.01314.26
5.5.90.0050.00514.25
5.5.80.0060.00614.23
5.5.70.0070.01014.25
5.5.60.0040.00814.01
5.5.50.0000.01514.07
5.5.40.0090.00613.83
5.5.30.0030.00814.05
5.5.20.0090.00614.14
5.5.10.0140.00014.32
5.5.00.0050.00514.05
5.4.450.0320.02615.76
5.4.440.0630.02815.78
5.4.430.0400.03315.71
5.4.420.0380.04015.78
5.4.410.0300.03515.46
5.4.400.0400.03215.46
5.4.390.0070.03715.44
5.4.380.0240.02615.34
5.4.370.0200.03015.25
5.4.360.0130.03115.32
5.4.350.0280.03615.21
5.4.340.0100.03515.34
5.4.330.0070.00311.95
5.4.320.0040.02312.20
5.4.310.0070.02012.20
5.4.300.0080.02112.20
5.4.290.0060.02212.20
5.4.280.0080.02512.14
5.4.270.0070.02212.14
5.4.260.0040.02312.13
5.4.250.0050.02212.14
5.4.240.0040.02112.14
5.4.230.0060.02612.13
5.4.220.0050.02312.13
5.4.210.0040.02512.13
5.4.200.0080.01912.13
5.4.190.0060.03412.13
5.4.180.0050.03112.13
5.4.170.0080.02612.14
5.4.160.0060.02312.13
5.4.150.0020.02512.13
5.4.140.0080.02111.97
5.4.130.0070.02511.97
5.4.120.0070.02111.95
5.4.110.0030.02211.95
5.4.100.0050.02111.94
5.4.90.0080.02211.94
5.4.80.0060.02411.95
5.4.70.0080.01811.94
5.4.60.0080.01911.94
5.4.50.0060.02211.94
5.4.40.0060.02111.94
5.4.30.0070.02711.94
5.4.20.0050.02511.94
5.4.10.0080.02611.94
5.4.00.0080.02711.68
5.3.290.0050.02512.38
5.3.280.0040.02812.33
5.3.270.0070.02712.34
5.3.260.0040.02512.34
5.3.250.0050.02312.34
5.3.240.0070.02812.33
5.3.230.0040.02912.33
5.3.220.0080.02012.32
5.3.210.0070.02312.32
5.3.200.0050.02912.31
5.3.190.0060.02212.31
5.3.180.0040.02312.31
5.3.170.0070.02012.31
5.3.160.0080.02012.31
5.3.150.0100.01812.31
5.3.140.0070.01812.31
5.3.130.0090.02612.31
5.3.120.0070.02312.31
5.3.110.0060.02512.30
5.3.100.0070.02312.04
5.3.90.0040.02212.02
5.3.80.0060.02312.01
5.3.70.0100.02512.02
5.3.60.0070.02012.01
5.3.50.0040.03011.98
5.3.40.0040.02311.98
5.3.30.0060.01911.95
5.3.20.0040.02311.83
5.3.10.0040.02111.81
5.3.00.0090.02411.80
5.2.170.0090.0349.15
5.2.160.0090.0369.15
5.2.150.0100.0349.15
5.2.140.0110.0299.14
5.2.130.0040.0339.11
5.2.120.0050.0299.11
5.2.110.0060.0299.12
5.2.100.0090.0259.11
5.2.90.0050.0329.11
5.2.80.0070.0299.12
5.2.70.0050.0329.11
5.2.60.0060.0319.05
5.2.50.0040.0369.03
5.2.40.0060.0289.00
5.2.30.0060.0318.99
5.2.20.0040.0318.97
5.2.10.0090.0268.90
5.2.00.0070.0288.76
5.1.60.0050.0258.04
5.1.50.0060.0258.04
5.1.40.0040.0268.03
5.1.30.0090.0258.38
5.1.20.0030.0318.40
5.1.10.0050.0338.12
5.1.00.0050.0338.13
5.0.50.0070.0276.60
5.0.40.0060.0266.46
5.0.30.0060.0296.27
5.0.20.0060.0206.24
5.0.10.0060.0196.22
5.0.00.0060.0306.21
4.4.90.0020.0174.78
4.4.80.0030.0154.76
4.4.70.0060.0134.75
4.4.60.0040.0164.75
4.4.50.0040.0154.77
4.4.40.0050.0324.71
4.4.30.0050.0204.75
4.4.20.0040.0244.84
4.4.10.0050.0224.84
4.4.00.0070.0304.76
4.3.110.0070.0174.67
4.3.100.0050.0214.66
4.3.90.0030.0234.64
4.3.80.0050.0324.58
4.3.70.0040.0174.63
4.3.60.0030.0164.63
4.3.50.0060.0164.63
4.3.40.0030.0284.54
4.3.30.0030.0183.27
4.3.20.0030.0183.25
4.3.10.0020.0193.21
4.3.00.0100.01710.30

preferences:
38.08 ms | 401 KiB | 5 Q