3v4l.org

run code in 300+ PHP versions simultaneously
<?php $A = array(); $B = &$A[0]; $F = &$A[1]; $C = $A; $D = $A; //$C[0] = $D[1]; $C[0] = 10; $D[1] = 20; echo $A[0] . ' ' . $A[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)
8.3.70.0120.00316.63
8.3.60.0110.00716.73
8.3.50.0120.00722.05
8.3.40.0050.01018.61
8.3.30.0060.00919.05
8.3.20.0040.00420.39
8.3.10.0080.00023.70
8.3.00.0000.00719.02
8.2.180.0070.01418.54
8.2.170.0120.00322.96
8.2.160.0100.00320.45
8.2.150.0070.01024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00820.86
8.2.110.0090.00022.25
8.2.100.0080.00420.53
8.2.90.0000.00819.16
8.2.80.0090.00017.97
8.2.70.0000.00917.63
8.2.60.0050.00317.93
8.2.50.0000.00818.07
8.2.40.0040.00419.95
8.2.30.0000.00718.32
8.2.20.0000.00717.73
8.2.10.0040.00418.07
8.2.00.0040.00417.67
8.1.280.0100.00725.92
8.1.270.0080.00023.85
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0080.00023.93
8.1.230.0040.00719.08
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0050.00817.13
8.1.190.0090.00017.35
8.1.180.0050.00318.10
8.1.170.0000.00818.66
8.1.160.0020.00522.06
8.1.150.0070.00018.62
8.1.140.0000.00717.43
8.1.130.0000.00717.83
8.1.120.0030.00317.49
8.1.110.0050.00317.38
8.1.100.0070.00017.45
8.1.90.0000.00917.34
8.1.80.0080.00017.49
8.1.70.0000.00617.43
8.1.60.0040.00417.60
8.1.50.0000.00717.43
8.1.40.0070.00017.46
8.1.30.0000.00817.57
8.1.20.0040.00417.61
8.1.10.0000.00817.51
8.1.00.0000.00717.58
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0000.00718.55
8.0.270.0000.00717.26
8.0.260.0030.00317.32
8.0.250.0000.00716.92
8.0.240.0030.00317.02
8.0.230.0070.00016.80
8.0.220.0050.00216.80
8.0.210.0000.00716.88
8.0.200.0060.00016.99
8.0.190.0040.00416.97
8.0.180.0070.00016.93
8.0.170.0040.00416.84
8.0.160.0030.00316.77
8.0.150.0000.00716.74
8.0.140.0040.00416.84
8.0.130.0000.00713.31
8.0.120.0040.00416.86
8.0.110.0000.00716.88
8.0.100.0000.00716.90
8.0.90.0040.00416.91
8.0.80.0060.00916.93
8.0.70.0000.00716.71
8.0.60.0000.00716.75
8.0.50.0030.00516.73
8.0.30.0110.00816.89
8.0.20.0150.01017.40
8.0.10.0000.00816.98
8.0.00.0100.00916.83
7.4.330.0020.00215.00
7.4.320.0030.00316.50
7.4.300.0030.00316.50
7.4.290.0030.00316.48
7.4.280.0100.00016.49
7.4.270.0030.00316.58
7.4.260.0040.00316.50
7.4.250.0040.00416.46
7.4.240.0040.00416.42
7.4.230.0040.00416.43
7.4.220.0090.01216.59
7.4.210.0070.00716.65
7.4.200.0000.00716.37
7.4.160.0150.00016.48
7.4.150.0060.01217.40
7.4.140.0030.01317.86
7.4.130.0100.00716.44
7.4.120.0080.00816.52
7.4.110.0100.00716.45
7.4.100.0070.01016.47
7.4.90.0040.01216.39
7.4.80.0110.01119.39
7.4.70.0140.00316.34
7.4.60.0090.00916.49
7.4.50.0040.00416.49
7.4.40.0120.00916.48
7.4.30.0030.01316.41
7.4.00.0050.00914.93
7.3.330.0000.00513.23
7.3.320.0000.00613.05
7.3.310.0030.00316.21
7.3.300.0030.00316.21
7.3.290.0060.01316.22
7.3.280.0100.00916.30
7.3.270.0050.01117.40
7.3.260.0150.00316.56
7.3.250.0100.01016.25
7.3.240.0120.00516.22
7.3.230.0070.01016.60
7.3.210.0110.00716.24
7.3.200.0030.01316.48
7.3.190.0060.01016.31
7.3.180.0070.01016.30
7.3.170.0060.00916.43
7.3.160.0070.00716.40
7.3.120.0040.01314.82
7.3.110.0060.01014.99
7.3.100.0060.01014.77
7.3.90.0100.00715.18
7.3.80.0080.00314.55
7.3.70.0000.00814.73
7.3.60.0090.00914.89
7.3.50.0060.00914.57
7.3.40.0100.00314.71
7.3.30.0060.00314.77
7.3.20.0000.01116.67
7.3.10.0110.00016.49
7.3.00.0040.00416.46
7.2.330.0090.01416.54
7.2.320.0060.01216.48
7.2.310.0110.00616.75
7.2.300.0090.00616.70
7.2.290.0030.01616.63
7.2.250.0070.01314.84
7.2.240.0100.01014.72
7.2.230.0060.00615.24
7.2.220.0100.00314.75
7.2.210.0110.00014.64
7.2.200.0040.01214.79
7.2.190.0030.01415.11
7.2.180.0070.00714.61
7.2.170.0040.01114.93
7.1.330.0060.00615.74
7.1.320.0000.01416.07
7.1.310.0060.00615.47
7.1.300.0140.00315.63
7.1.290.0030.01015.59
7.1.280.0030.00915.98
7.1.270.0060.00315.68
7.1.260.0000.01015.66
7.1.70.0060.00316.77
7.1.60.0120.01219.70
7.1.50.0100.01317.02
7.1.00.0070.07322.36
7.0.200.0480.00015.00
7.0.140.0100.06722.00
7.0.60.0030.09019.88
7.0.50.0170.06717.83
7.0.40.0100.08720.27
7.0.30.0370.07320.32
7.0.20.0270.07720.18
7.0.10.0070.09020.00
7.0.00.0130.06720.14
5.6.280.0000.07320.81
5.6.210.0030.08720.48
5.6.200.0100.07018.21
5.6.190.0100.06720.39
5.6.180.0400.07720.67
5.6.170.0430.07020.41
5.6.160.0070.08020.44
5.6.150.0070.07318.20
5.6.140.0030.07718.08
5.6.130.0100.06718.16
5.6.120.0170.07320.77
5.6.110.0100.08020.98
5.6.100.0070.07720.95
5.6.90.0000.08720.87
5.6.80.0070.08320.39
5.5.350.0070.03320.41
5.5.340.0130.07317.88
5.5.330.0100.07020.23
5.5.320.0270.04320.26
5.5.310.0330.06720.41
5.5.300.0100.07718.01
5.5.290.0100.06017.90
5.5.280.0000.04720.95
5.5.270.0070.06020.95
5.5.260.0030.06020.64
5.5.250.0130.07720.57
5.5.240.0230.07720.06
5.4.450.0000.04019.48
5.4.440.1200.04319.13
5.4.430.1730.03719.25
5.4.420.1770.04019.41
5.4.410.1730.03019.30
5.4.400.1800.03719.24
5.4.390.1770.04018.80
5.4.380.2000.03319.09
5.4.370.1900.04319.06
5.4.360.2000.03318.88
5.4.350.1830.03319.24
5.4.340.1770.03019.09
5.4.320.1100.03718.88
5.4.310.0000.04019.08
5.4.300.0000.04019.21
5.4.290.0570.04019.09
5.4.280.1200.04019.09
5.4.270.1330.04019.23
5.4.260.1830.03319.24
5.4.250.1800.03719.12
5.4.240.1830.04019.12
5.4.230.1730.04019.15
5.4.220.1870.04019.03
5.4.210.1900.03019.12
5.4.200.1930.03319.23
5.4.190.1970.04319.11
5.4.180.2130.03019.07
5.4.170.0070.04319.11
5.4.160.0130.03718.91
5.4.150.0800.04319.07
5.4.140.1900.03716.53
5.4.130.2170.03716.27
5.4.120.1970.03316.31
5.4.110.2100.04016.34
5.4.100.1900.03716.18
5.4.90.2030.04316.43
5.4.80.2130.03716.37
5.4.70.2200.04316.41
5.4.60.1870.03016.43
5.4.50.2130.04316.31
5.4.40.0030.07316.30
5.4.30.0000.05016.36
5.4.20.0930.04716.46
5.4.10.1970.04016.18
5.4.00.2070.03715.88
5.3.290.1870.03714.53
5.3.280.2030.04014.42
5.3.270.1930.03714.45
5.3.260.2270.04014.41
5.3.250.2200.03714.46
5.3.240.1800.04014.70
5.3.230.2130.04014.44
5.3.220.0730.05014.61
5.3.210.0030.07014.39
5.3.200.0200.04314.44
5.3.190.2170.04314.43
5.3.180.2070.04014.57
5.3.170.2100.04314.42
5.3.160.1870.03714.50
5.3.150.1930.03014.41
5.3.140.2230.03314.54
5.3.130.1900.03314.38
5.3.120.1570.04314.52
5.3.110.2000.04314.42
5.3.100.2100.04313.89
5.3.90.0370.03713.88
5.3.80.0070.03713.85
5.3.70.0200.03313.81
5.3.60.1830.03713.78
5.3.50.2100.04713.78
5.3.40.2130.03713.89
5.3.30.2070.04013.89
5.3.20.2130.04013.55
5.3.10.2200.03013.59
5.3.00.2070.03313.48
5.2.170.1630.03311.20
5.2.160.1670.02710.99
5.2.150.1530.03011.16
5.2.140.1570.03011.19
5.2.130.0100.02711.01
5.2.120.0030.02711.26
5.2.110.0070.03011.04
5.2.100.1500.02710.95
5.2.90.1630.03010.96
5.2.80.1630.03010.93
5.2.70.1670.03011.01
5.2.60.1630.03011.09
5.2.50.1930.04010.85
5.2.40.1530.04010.83
5.2.30.2000.01710.81
5.2.20.1330.03010.81
5.2.10.1300.03010.95
5.2.00.1330.02710.93
5.1.60.1330.0239.89
5.1.50.1300.0279.88
5.1.40.0400.0279.85
5.1.30.0000.02710.45
5.1.20.0030.04010.58
5.1.10.0030.0239.95
5.1.00.1170.02310.11
5.0.50.0830.0238.77
5.0.40.0700.0178.41
5.0.30.0700.0308.37
5.0.20.0670.0208.34
5.0.10.0700.0178.05
5.0.00.0730.0238.03
4.4.90.0830.0207.84
4.4.80.0770.0207.84
4.4.70.0870.0177.84
4.4.60.0870.0277.84
4.4.50.0900.0237.84
4.4.40.0600.0277.84
4.4.30.0730.0207.84
4.4.20.0800.0237.84
4.4.10.0630.0207.84
4.4.00.0800.0237.84
4.3.110.0830.0207.84
4.3.100.0830.0077.84
4.3.90.0900.0177.84
4.3.80.0800.0237.84
4.3.70.0070.0137.84
4.3.60.0070.0277.84
4.3.50.0000.0207.84
4.3.40.0000.0477.84
4.3.30.0030.0307.84
4.3.20.0030.0277.84
4.3.10.0000.0177.84
4.3.00.0000.0177.84

preferences:
32.1 ms | 401 KiB | 5 Q