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)
8.3.40.0070.00718.96
8.3.30.0110.00719.09
8.3.20.0050.00220.13
8.3.10.0000.00823.43
8.3.00.0080.00019.06
8.2.170.0070.00722.96
8.2.160.0100.00320.35
8.2.150.0070.00024.18
8.2.140.0020.00524.66
8.2.130.0070.00026.16
8.2.120.0080.00020.73
8.2.110.0080.00022.12
8.2.100.0070.00322.11
8.2.90.0040.00419.16
8.2.80.0030.00517.97
8.2.70.0050.00317.75
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0050.00519.94
8.2.30.0040.00418.29
8.2.20.0020.00517.65
8.2.10.0000.00818.11
8.2.00.0030.00517.55
8.1.270.0040.00423.97
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00722.02
8.1.230.0040.00719.21
8.1.220.0000.00717.74
8.1.210.0090.00018.77
8.1.200.0090.00317.35
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0090.00018.66
8.1.160.0040.00421.95
8.1.150.0050.00218.56
8.1.140.0040.00417.35
8.1.130.0030.00517.80
8.1.120.0030.00317.41
8.1.110.0000.00717.43
8.1.100.0050.00317.41
8.1.90.0080.00017.47
8.1.80.0000.00817.36
8.1.70.0000.00717.45
8.1.60.0060.00317.58
8.1.50.0030.00617.51
8.1.40.0040.00417.56
8.1.30.0080.00017.49
8.1.20.0060.00317.54
8.1.10.0000.00817.53
8.1.00.0070.00017.39
8.0.300.0000.00718.77
8.0.290.0060.00316.75
8.0.280.0030.00318.32
8.0.270.0000.00717.28
8.0.260.0040.00417.09
8.0.250.0000.00716.92
8.0.240.0000.00716.89
8.0.230.0000.00716.99
8.0.220.0070.00016.77
8.0.210.0040.00416.85
8.0.200.0060.00016.96
8.0.190.0000.00816.93
8.0.180.0040.00416.87
8.0.170.0000.00816.97
8.0.160.0000.00716.96
8.0.150.0050.00216.89
8.0.140.0000.00716.84
8.0.130.0030.00313.31
8.0.120.0040.00416.81
8.0.110.0000.00716.71
8.0.100.0000.00716.91
8.0.90.0020.00516.75
8.0.80.0070.01416.78
8.0.70.0070.00016.91
8.0.60.0040.00416.98
8.0.50.0000.00716.78
8.0.30.0120.01016.82
8.0.20.0080.01417.40
8.0.10.0070.00016.74
8.0.00.0110.00916.58
7.4.330.0050.00015.00
7.4.320.0060.00016.59
7.4.300.0030.00316.63
7.4.290.0000.00716.40
7.4.280.0040.00416.48
7.4.270.0070.00016.52
7.4.260.0040.00416.58
7.4.250.0000.00716.47
7.4.240.0030.00416.46
7.4.230.0000.00716.36
7.4.220.0120.00916.47
7.4.210.0030.01016.41
7.4.200.0000.00816.43
7.4.160.0060.00916.62
7.4.150.0140.00317.40
7.4.140.0110.01017.86
7.4.130.0080.00816.43
7.4.120.0110.00616.58
7.4.110.0140.00316.39
7.4.100.0160.00016.36
7.4.90.0180.00316.52
7.4.80.0160.00619.39
7.4.70.0030.01316.65
7.4.60.0110.00816.43
7.4.50.0030.00616.30
7.4.40.0080.00816.61
7.4.30.0030.01316.64
7.4.00.0130.00314.83
7.3.330.0000.00613.11
7.3.320.0020.00213.20
7.3.310.0040.00416.12
7.3.300.0060.00016.28
7.3.290.0070.00716.22
7.3.280.0070.01216.30
7.3.270.0070.01017.40
7.3.260.0060.01216.32
7.3.250.0170.00616.20
7.3.240.0110.00516.53
7.3.230.0110.00716.39
7.3.210.0090.01316.51
7.3.200.0150.00619.39
7.3.190.0080.00816.37
7.3.180.0060.00916.57
7.3.170.0120.00316.56
7.3.160.0090.00616.56
7.3.120.0040.00814.82
7.2.330.0070.01016.63
7.2.320.0060.01316.35
7.2.310.0100.00716.35
7.2.300.0140.00316.77
7.2.290.0040.01716.38
7.1.70.0030.00316.77
7.1.60.0030.02119.70
7.1.50.0070.01416.98
7.1.00.0030.07722.35
7.0.200.0030.00616.53
7.0.140.0100.06722.00
7.0.100.0200.08319.92
7.0.90.0030.08719.88
7.0.80.0000.04719.89
7.0.70.0070.08719.91
7.0.60.0070.04719.88
7.0.50.0130.06020.34
7.0.40.0100.07020.04
7.0.30.0130.04320.09
7.0.20.0000.08720.12
7.0.10.0030.09020.07
7.0.00.0100.07020.09
5.6.280.0100.06721.14
5.6.250.0100.08020.60
5.6.240.0030.07720.66
5.6.230.0100.06020.62
5.6.220.0130.07320.55
5.6.210.0070.04020.45
5.6.200.0070.08320.99
5.6.190.0100.08321.13
5.6.180.0100.03721.04
5.6.170.0030.08720.95
5.6.160.0130.07721.01
5.6.150.0200.03721.00
5.6.140.0030.08321.04
5.6.130.0030.09021.02
5.6.120.0100.07321.12
5.6.110.0100.05321.07
5.6.100.0100.05721.02
5.6.90.0200.08321.05
5.6.80.0130.05020.40
5.6.70.0100.07720.40
5.6.60.0200.03720.42
5.6.50.0030.06320.45
5.6.40.0030.09020.27
5.6.30.0100.04720.38
5.6.20.0100.03720.30
5.6.10.0130.07320.42
5.6.00.0070.08320.40
5.5.380.0100.06720.39
5.5.370.0100.08320.35
5.5.360.0170.07720.43
5.5.350.0030.08020.42
5.5.340.0100.07320.88
5.5.330.0170.07320.88
5.5.320.0100.06320.92
5.5.310.0130.06720.78
5.5.300.0070.04320.75
5.5.290.0100.07720.91
5.5.280.0100.08720.76
5.5.270.0130.07720.86
5.5.260.0070.05020.77
5.5.250.0100.07320.58
5.5.240.0170.07720.22
5.5.230.0170.06720.20
5.5.220.0030.08320.28
5.5.210.0100.07320.14
5.5.200.0100.07720.07
5.5.190.0030.08720.25
5.5.180.0130.07020.27
5.5.160.0070.07720.21
5.5.150.0100.04720.07
5.5.140.0100.07720.09
5.5.130.0200.04720.05
5.5.120.0100.07720.27
5.5.110.0200.07020.14
5.5.100.0070.07020.09
5.5.90.0000.06720.04
5.5.80.0100.07320.08
5.5.70.0030.05020.02
5.5.60.0030.08020.03
5.5.50.0030.05320.02
5.5.40.0170.06720.02
5.5.30.0070.07020.13
5.5.20.0100.06720.04
5.5.10.0070.07320.12
5.5.00.0030.03720.10
5.4.450.0100.07319.40
5.4.440.0030.07319.55
5.4.430.0030.07719.55
5.4.420.0100.07719.29
5.4.410.0100.05319.32
5.4.400.0070.05718.90
5.4.390.0030.08019.20
5.4.380.0130.07319.25
5.4.370.0070.06318.96
5.4.360.0100.07319.25
5.4.350.0170.06719.03
5.4.340.0070.08018.91
5.4.320.0070.07318.90
5.4.310.0130.03718.81
5.4.300.0100.07718.95
5.4.290.0070.06018.83
5.4.280.0130.06019.04
5.4.270.0030.08318.94
5.4.260.0200.06719.06
5.4.250.0100.07719.04
5.4.240.0100.08019.04
5.4.230.0130.07019.05
5.4.220.0100.07318.93
5.4.210.0070.07719.11
5.4.200.0030.09319.09
5.4.190.0100.07318.96
5.4.180.0000.08318.97
5.4.170.0070.03319.01
5.4.160.0070.07719.12
5.4.150.0130.07319.12
5.4.140.0070.07016.32
5.4.130.0070.06716.23
5.4.120.0070.07316.21
5.4.110.0070.07016.43
5.4.100.0130.07016.31
5.4.90.0070.07316.21
5.4.80.0070.07016.40
5.4.70.0000.08016.33
5.4.60.0070.06716.34
5.4.50.0100.07716.39
5.4.40.0130.06016.24
5.4.30.0100.05716.20
5.4.20.0030.07016.33
5.4.10.0030.07016.19
5.4.00.0000.04015.64
5.3.290.0100.07314.50
5.3.280.0030.04314.54
5.3.270.0070.08014.61
5.3.260.0030.08014.44
5.3.250.0030.03714.46
5.3.240.0130.06314.55
5.3.230.0130.07314.50
5.3.220.0130.07014.51
5.3.210.0030.07714.42
5.3.200.0130.06714.40
5.3.190.0030.04714.55
5.3.180.0070.08014.51
5.3.170.0070.07314.55
5.3.160.0170.03714.42
5.3.150.0070.07314.51
5.3.140.0130.06314.57
5.3.130.0070.07714.40
5.3.120.0070.07714.52
5.3.110.0030.07014.55
5.3.100.0130.07314.02
5.3.90.0170.06314.01
5.3.80.0170.07013.88
5.3.70.0130.05314.00
5.3.60.0100.06014.00
5.3.50.0030.06313.85
5.3.40.0130.06313.77
5.3.30.0070.04713.88
5.3.20.0130.07013.44
5.3.10.0070.06713.59
5.3.00.0100.07313.59
5.2.170.0030.06713.17
5.2.160.0030.03713.17
5.2.150.0070.06013.17
5.2.140.0100.05713.17
5.2.130.0000.06313.17
5.2.120.0100.04713.17
5.2.110.0000.03313.17
5.2.100.0030.05013.17
5.2.90.0030.06313.17
5.2.80.0070.04713.17
5.2.70.0030.06313.17
5.2.60.0000.06713.17
5.2.50.0000.06313.17
5.2.40.0070.06313.17
5.2.30.0070.05713.17
5.2.20.0070.06013.17
5.2.10.0100.05313.17
5.2.00.0030.06013.17
5.1.60.0000.04313.17
5.1.50.0170.03713.17
5.1.40.0000.04013.17
5.1.30.0070.03013.17
5.1.20.0070.05313.17
5.1.10.0070.04013.17
5.1.00.0030.05313.17
5.0.50.0030.04713.17
5.0.40.0030.04013.17
5.0.30.0100.05713.17
5.0.20.0000.04713.17
5.0.10.0030.04313.17
5.0.00.0070.05013.17
4.4.90.0000.04013.17
4.4.80.0030.03013.17
4.4.70.0070.03313.17
4.4.60.0000.02013.17
4.4.50.0000.03713.17
4.4.40.0030.02713.17
4.4.30.0000.03713.17
4.4.20.0070.03313.17
4.4.10.0030.03313.17
4.4.00.0000.05713.17
4.3.110.0070.02713.17
4.3.100.0070.03013.17
4.3.90.0000.03313.17
4.3.80.0000.05713.17
4.3.70.0030.02013.17
4.3.60.0000.02013.17
4.3.50.0030.03013.17
4.3.40.0100.04713.17
4.3.30.0000.03713.17
4.3.20.0000.03313.17
4.3.10.0000.03013.17
4.3.00.0000.03313.17

preferences:
43.6 ms | 400 KiB | 5 Q