3v4l.org

run code in 300+ PHP versions simultaneously
<?php $outer=array(); $outer[7]=array('a'=>'aaa','b'=>array()); $inner7=&$outer[7]; $inner['b'][]='xxx'; $inner['b'][]='yyy'; print_r($inner); print_r($outer);

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)
8.3.70.0120.00616.63
8.3.60.0070.00716.63
8.3.50.0080.01317.20
8.3.40.0110.00318.56
8.3.30.0110.00418.79
8.3.20.0080.00018.77
8.3.10.0040.00420.48
8.3.00.0040.00419.25
8.2.180.0100.00716.50
8.2.170.0140.00722.96
8.2.160.0100.00321.02
8.2.150.0000.00724.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0150.00319.32
8.2.110.0060.00320.96
8.2.100.0080.00417.78
8.2.90.0000.01019.09
8.2.80.0050.00317.80
8.2.70.0050.00317.50
8.2.60.0040.00417.68
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0080.00318.17
8.2.20.0000.00717.67
8.2.10.0040.00417.61
8.2.00.0110.00017.60
8.1.280.0110.01125.92
8.1.270.0000.00824.66
8.1.260.0030.00626.35
8.1.250.0050.00328.09
8.1.240.0060.00320.88
8.1.230.0090.00320.84
8.1.220.0030.00617.74
8.1.210.0000.01018.89
8.1.200.0090.00017.35
8.1.190.0000.00917.53
8.1.180.0000.00818.10
8.1.170.0000.00718.77
8.1.160.0040.00418.79
8.1.150.0000.00818.64
8.1.140.0050.00317.26
8.1.130.0000.00717.77
8.1.120.0080.00017.30
8.1.110.0040.00417.40
8.1.100.0000.00717.36
8.1.90.0040.00417.28
8.1.80.0000.00717.46
8.1.70.0000.00717.29
8.1.60.0040.00417.51
8.1.50.0070.00017.38
8.1.40.0050.00317.36
8.1.30.0040.00417.59
8.1.20.0040.00417.60
8.1.10.0040.00417.55
8.1.00.0030.00617.51
8.0.300.0030.00519.88
8.0.290.0040.00416.75
8.0.280.0000.00818.38
8.0.270.0000.00716.74
8.0.260.0000.00616.77
8.0.250.0070.00016.79
8.0.240.0070.00016.81
8.0.230.0040.00416.87
8.0.220.0030.00316.70
8.0.210.0080.00016.77
8.0.200.0060.00016.88
8.0.190.0030.00316.95
8.0.180.0020.00516.84
8.0.170.0000.00816.87
8.0.160.0000.00816.67
8.0.150.0030.00616.74
8.0.140.0040.00416.70
8.0.130.0050.00013.18
8.0.120.0070.00016.82
8.0.110.0040.00416.76
8.0.100.0040.00416.70
8.0.90.0030.00416.86
8.0.80.0080.00716.82
8.0.70.0080.00016.85
8.0.60.0070.00016.91
8.0.50.0040.00416.71
8.0.30.0090.01017.11
8.0.20.0110.00816.94
8.0.10.0030.00516.98
8.0.00.0080.01416.63
7.4.330.0020.00212.86
7.4.320.0000.00616.43
7.4.300.0030.00316.53
7.4.290.0030.00316.54
7.4.280.0040.00416.51
7.4.270.0030.00316.45
7.4.260.0060.00013.32
7.4.250.0030.00516.43
7.4.240.0000.00716.49
7.4.230.0070.00016.39
7.4.220.0180.00416.50
7.4.210.0090.00816.54
7.4.200.0000.00716.37
7.4.190.0040.00416.67
7.4.160.0090.00616.20
7.4.150.0030.01316.33
7.4.140.0200.01216.59
7.4.130.0090.01216.53
7.4.120.0140.00416.30
7.4.110.0100.00716.62
7.4.100.0090.00916.53
7.4.90.0410.01916.36
7.4.80.0140.00319.39
7.4.70.0090.01216.52
7.4.60.0130.00516.52
7.4.50.0070.00016.33
7.4.40.0090.00316.50
7.4.30.0140.00316.52
7.4.00.0030.01314.66
7.3.330.0080.00013.17
7.3.320.0030.00313.03
7.3.310.0000.00716.31
7.3.300.0000.00616.32
7.3.290.0090.00916.24
7.3.280.0050.00916.31
7.3.270.0130.00616.38
7.3.260.0040.01316.27
7.3.250.0100.00716.44
7.3.240.0130.00316.43
7.3.230.0130.00316.20
7.3.210.0110.01116.51
7.3.200.0080.00816.39
7.3.190.0170.00316.55
7.3.180.0030.01316.61
7.3.170.0000.01716.38
7.3.160.0120.00616.26
7.3.120.0110.00715.03
7.3.00.0030.01016.77
7.2.330.0000.02016.72
7.2.320.0110.00716.56
7.2.310.0100.01316.43
7.2.300.0060.01416.62
7.2.290.0040.01216.65
7.2.130.0100.00316.66
7.2.120.0120.00416.56
7.2.110.0090.00616.75
7.2.100.0100.00316.97
7.2.90.0070.01016.78
7.2.80.0070.00716.75
7.2.70.0040.00716.74
7.2.60.0080.00516.73
7.2.50.0100.00316.95
7.2.40.0080.00416.89
7.2.30.0100.00716.82
7.2.20.0040.01116.73
7.2.10.0030.00916.92
7.2.00.0030.01218.00
7.1.250.0130.00315.66
7.1.240.0130.00315.93
7.1.230.0000.01615.82
7.1.220.0110.00315.39
7.1.210.0100.00715.70
7.1.200.0040.00615.64
7.1.190.0070.00715.91
7.1.180.0040.00715.86
7.1.170.0040.00815.73
7.1.160.0070.00715.86
7.1.150.0030.00615.77
7.1.140.0100.00615.81
7.1.130.0120.00315.86
7.1.120.0110.00015.69
7.1.110.0060.00615.57
7.1.100.0060.00715.91
7.1.90.0030.00715.93
7.1.80.0040.00415.92
7.1.70.0040.00616.49
7.1.60.0020.01617.67
7.1.50.0050.00516.23
7.1.40.0030.00615.95
7.1.30.0000.01415.71
7.1.20.0030.00915.61
7.1.10.0080.00615.50
7.1.00.0050.03518.95
7.0.330.0070.00315.61
7.0.320.0040.00715.45
7.0.310.0030.01015.55
7.0.300.0070.00415.40
7.0.290.0060.00915.25
7.0.280.0000.01415.33
7.0.270.0030.01315.40
7.0.260.0040.00715.12
7.0.250.0030.01015.42
7.0.240.0100.00315.52
7.0.230.0060.00915.60
7.0.220.0070.01015.40
7.0.210.0030.00515.34
7.0.200.0120.00615.09
7.0.190.0030.01215.28
7.0.180.0050.00515.28
7.0.170.0090.00615.37
7.0.160.0000.01115.42
7.0.150.0140.00315.27
7.0.140.0030.03718.67
7.0.130.0000.01215.15
7.0.120.0030.03218.63
7.0.110.0070.00315.31
7.0.100.0070.00715.32
7.0.90.0040.00715.45
7.0.80.0030.01215.43
7.0.70.0030.01015.45
7.0.60.0130.04117.77
7.0.50.0050.04316.64
7.0.40.0130.04016.90
7.0.30.0200.02816.68
7.0.20.0150.03816.77
7.0.10.0070.02316.65
7.0.00.0060.02516.90
5.6.380.0070.01014.52
5.6.370.0030.00913.96
5.6.360.0100.00613.99
5.6.350.0070.00714.25
5.6.340.0090.00314.40
5.6.330.0030.00714.07
5.6.320.0110.00414.09
5.6.310.0090.00614.19
5.6.300.0000.01114.09
5.6.290.0090.00614.17
5.6.280.0060.03817.52
5.6.270.0050.00514.29
5.6.260.0070.00714.55
5.6.250.0070.00714.28
5.6.240.0060.00314.54
5.6.230.0110.00014.18
5.6.220.0060.00314.59
5.6.210.0020.03717.42
5.6.200.0080.03516.27
5.6.190.0050.04817.32
5.6.180.0140.02217.41
5.6.170.0180.04017.52
5.6.160.0070.02817.36
5.6.150.0130.03316.15
5.6.140.0080.04016.26
5.6.130.0050.04216.37
5.6.120.0060.03417.72
5.6.110.0050.04717.47
5.6.100.0080.04517.69
5.6.90.0080.04517.57
5.6.80.0050.02817.34
5.6.70.0080.00414.17
5.6.60.0030.01413.91
5.6.50.0070.00414.48
5.6.40.0000.01714.16
5.6.30.0090.00614.33
5.6.20.0070.00714.12
5.6.10.0000.01414.07
5.6.00.0080.00814.16
5.5.380.0040.00410.88
5.5.370.0040.00711.05
5.5.360.0050.00511.09
5.5.350.0040.04315.77
5.5.340.0050.03914.70
5.5.330.0080.02015.68
5.5.320.1480.02015.80
5.5.310.0170.04315.69
5.5.300.0030.04414.70
5.5.290.0050.02514.42
5.5.280.0040.02316.01
5.5.270.0030.02316.07
5.5.260.0030.02716.09
5.5.250.0140.02815.88
5.5.240.0030.03815.62
5.5.230.0030.00311.13
5.5.220.0000.01111.19
5.5.210.0040.00711.08
5.5.200.0040.00910.99
5.5.190.0070.00411.22
5.5.180.0070.00310.99
5.5.170.0060.00611.29
5.5.160.0060.00011.21
5.5.150.0040.00711.32
5.5.140.0040.00711.33
5.5.130.0060.00611.19
5.5.120.0040.00810.96
5.5.110.0030.00611.32
5.5.100.0120.00011.16
5.5.90.0000.01011.02
5.5.80.0060.00311.23
5.5.70.0040.00410.94
5.5.60.0060.00911.08
5.5.50.0030.00311.10
5.5.40.0030.00911.27
5.5.30.0030.00311.21
5.5.20.0000.01111.29
5.5.10.0100.00311.24
5.5.00.0060.00611.05
5.4.450.0030.02615.07
5.4.440.0050.02215.25
5.4.430.0050.04315.28
5.4.420.0040.02715.25
5.4.410.0130.03515.16
5.4.400.0050.02215.13
5.4.390.0080.02214.97
5.4.380.0060.04015.01
5.4.370.0060.02515.06
5.4.360.0020.03015.11
5.4.350.0050.03215.05
5.4.340.0050.04215.13
5.4.330.0030.00711.16
5.4.320.0060.02315.02
5.4.310.0030.02615.04
5.4.300.0070.02415.08
5.4.290.0070.03814.99
5.4.280.0060.03015.09
5.4.270.0000.04915.22
5.4.260.0080.02315.15
5.4.250.0040.03015.06
5.4.240.0120.03315.26
5.4.230.0050.02314.99
5.4.220.0080.02515.00
5.4.210.0020.02514.86
5.4.200.0030.02314.97
5.4.190.0030.04114.91
5.4.180.0020.02415.05
5.4.170.0090.02015.19
5.4.160.0030.03815.29
5.4.150.0030.04314.98
5.4.140.0090.01813.68
5.4.130.0060.03713.77
5.4.120.0100.03313.84
5.4.110.0070.01713.68
5.4.100.0080.02013.83
5.4.90.0030.02313.72
5.4.80.0040.02113.65
5.4.70.0040.02013.69
5.4.60.0040.01913.67
5.4.50.0010.02013.87
5.4.40.0020.02113.58
5.4.30.0050.01813.71
5.4.20.0080.01513.74
5.4.10.0050.02113.67
5.4.00.0060.01813.37
5.3.290.0060.02312.68
5.3.280.0020.04312.56
5.3.270.0100.03512.63
5.3.260.0010.04112.64
5.3.250.0030.04412.66
5.3.240.0050.03812.61
5.3.230.0030.02412.61
5.3.220.0080.02812.44
5.3.210.0030.02312.55
5.3.200.0020.02112.55
5.3.190.0040.02012.57
5.3.180.0060.02012.51
5.3.170.0040.02212.64
5.3.160.0100.01312.71
5.3.150.0080.01812.63
5.3.140.0030.02012.53
5.3.130.0070.01712.60
5.3.120.0060.02012.56
5.3.110.0060.01712.57
5.3.100.0060.01712.34
5.3.90.0030.02012.39
5.3.80.0020.02312.19
5.3.70.0050.01812.32
5.3.60.0010.02012.31
5.3.50.0050.01812.31
5.3.40.0050.01912.16
5.3.30.0060.01712.22
5.3.20.0020.02212.06
5.3.10.0000.02112.04
5.3.00.0090.01412.00
5.2.170.0030.01510.33
5.2.160.0070.01710.28
5.2.150.0040.01610.31
5.2.140.0030.01810.35
5.2.130.0030.01810.27
5.2.120.0020.01710.23
5.2.110.0030.02010.41
5.2.100.0030.01710.28
5.2.90.0030.01510.24
5.2.80.0010.01810.33
5.2.70.0020.01610.23
5.2.60.0080.01010.25
5.2.50.0020.01710.23
5.2.40.0080.01310.22
5.2.30.0040.01810.15
5.2.20.0050.01310.24
5.2.10.0030.01610.13
5.2.00.0050.01710.09
5.1.60.0020.0149.71
5.1.50.0060.0279.65
5.1.40.0070.0259.70
5.1.30.0060.0239.87
5.1.20.0080.0179.88
5.1.10.0030.0159.77
5.1.00.0030.0169.69
5.0.50.0040.0228.93
5.0.40.0050.0258.90
5.0.30.0000.0348.81
5.0.20.0050.0178.78
5.0.10.0000.0248.79
5.0.00.0050.0268.79
4.4.90.0030.0068.75
4.4.80.0000.0098.75
4.4.70.0030.0088.75
4.4.60.0010.0098.75
4.4.50.0000.0138.75
4.4.40.0040.0128.75
4.4.30.0020.0198.75
4.4.20.0060.0178.75
4.4.10.0010.0218.75
4.4.00.0060.0278.75
4.3.110.0030.0208.75
4.3.100.0020.0228.75
4.3.90.0030.0138.75
4.3.80.0030.0288.75
4.3.70.0050.0128.75
4.3.60.0030.0108.75
4.3.50.0030.0188.75
4.3.40.0050.0278.75
4.3.30.0030.0198.75
4.3.20.0030.0188.75
4.3.10.0030.0208.75
4.3.00.0040.0188.75

preferences:
41.57 ms | 401 KiB | 5 Q