3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Some variables. $france = 'France'; $england = 'England'; // Set up keys of an array as pointers to the variables above. $storage = array(); $storage['fr'] = &$france; $storage['en'] = &$england; // Update the variable. $france = 'Angleterre'; $storage['en'] = 'lolwut'; // Updates the pointer map. print_r($storage); echo $england;

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)
8.3.70.0110.00716.58
8.3.60.0150.00018.30
8.3.50.0120.00822.95
8.3.40.0120.00318.90
8.3.30.0110.00419.16
8.3.20.0040.00420.30
8.3.10.0050.00323.61
8.3.00.0050.00319.38
8.2.180.0150.00016.63
8.2.170.0100.00322.96
8.2.160.0080.00520.35
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0060.00326.16
8.2.120.0080.00020.96
8.2.110.0060.00322.25
8.2.100.0060.00618.03
8.2.90.0000.00819.38
8.2.80.0050.00317.97
8.2.70.0090.00017.63
8.2.60.0080.00018.03
8.2.50.0050.00518.07
8.2.40.0050.00319.88
8.2.30.0030.00518.08
8.2.20.0030.00617.63
8.2.10.0000.00818.13
8.2.00.0000.00717.70
8.1.280.0080.00825.92
8.1.270.0080.00023.81
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0040.00423.74
8.1.230.0070.00419.01
8.1.220.0080.00017.79
8.1.210.0060.00318.77
8.1.200.0060.00317.23
8.1.190.0000.00817.10
8.1.180.0000.00818.10
8.1.170.0060.00318.67
8.1.160.0040.00421.82
8.1.150.0040.00418.86
8.1.140.0000.00717.32
8.1.130.0030.00317.78
8.1.120.0030.00317.41
8.1.110.0000.00817.39
8.1.100.0040.00417.43
8.1.90.0100.00017.28
8.1.80.0000.01017.45
8.1.70.0030.00317.34
8.1.60.0030.00617.39
8.1.50.0000.00717.36
8.1.40.0040.00417.46
8.1.30.0090.00017.56
8.1.20.0000.00817.49
8.1.10.0040.00417.54
8.1.00.0000.00717.48
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00718.48
8.0.270.0070.00017.19
8.0.260.0030.00317.24
8.0.250.0040.00416.99
8.0.240.0000.00816.82
8.0.230.0030.00316.88
8.0.220.0030.00316.82
8.0.210.0000.00716.84
8.0.200.0070.00016.78
8.0.190.0060.00316.79
8.0.180.0030.00616.69
8.0.170.0030.00516.87
8.0.160.0000.00716.86
8.0.150.0000.00816.82
8.0.140.0090.00416.68
8.0.130.0000.00613.21
8.0.120.0030.00516.78
8.0.110.0070.00016.65
8.0.100.0040.00416.70
8.0.90.0040.00416.83
8.0.80.0140.00716.77
8.0.70.0030.00516.72
8.0.60.0030.00516.85
8.0.50.0070.00016.73
8.0.30.0080.01316.95
8.0.20.0120.00617.40
8.0.10.0050.00216.99
8.0.00.0140.01016.89
7.4.330.0000.00515.00
7.4.320.0070.00016.46
7.4.300.0070.00016.37
7.4.290.0000.00616.36
7.4.280.0040.00816.52
7.4.270.0030.00316.46
7.4.260.0050.00516.52
7.4.250.0000.00816.42
7.4.240.0060.00216.57
7.4.230.0040.00416.33
7.4.220.0100.02016.61
7.4.210.0130.01016.54
7.4.200.0030.00316.59
7.4.160.0120.00416.45
7.4.150.0090.00917.40
7.4.140.0140.00617.86
7.4.130.0230.01516.45
7.4.120.0100.00916.41
7.4.110.0090.00916.32
7.4.100.0100.00616.52
7.4.90.0100.00716.49
7.4.80.0130.00319.39
7.4.70.0100.01316.43
7.4.60.0060.01016.59
7.4.50.0040.00016.19
7.4.40.0030.01316.37
7.4.30.0120.00616.33
7.4.00.0110.00714.92
7.3.330.0030.00313.01
7.3.320.0000.00613.01
7.3.310.0030.00316.38
7.3.300.0040.00416.24
7.3.290.0040.01116.32
7.3.280.0110.00616.28
7.3.270.0130.00317.40
7.3.260.0000.01816.42
7.3.250.0120.00616.43
7.3.240.0120.00616.64
7.3.230.0060.01016.39
7.3.210.0140.00316.28
7.3.200.0090.01119.39
7.3.190.0030.01316.21
7.3.180.0160.00616.25
7.3.170.0040.01216.52
7.3.160.0060.01016.20
7.2.330.0150.00316.68
7.2.320.0100.00716.63
7.2.310.0000.01616.37
7.2.300.0070.01016.62
7.2.290.0140.00316.38
7.2.00.0070.01119.27
7.1.100.0060.01017.96
7.1.70.0030.00917.15
7.1.60.0100.01319.40
7.1.50.0070.01716.98
7.1.00.0000.08022.28
7.0.200.0320.00414.54
7.0.140.0000.07722.10
7.0.60.0100.07720.06
7.0.50.0030.04017.80
7.0.40.0200.07019.96
7.0.30.0230.03720.09
7.0.20.0270.07720.09
7.0.10.0130.03719.97
7.0.00.0100.05320.21
5.6.210.0100.06320.70
5.6.200.0200.06318.21
5.6.190.0000.09720.77
5.6.180.0330.06320.61
5.6.170.0300.07720.42
5.6.160.0130.07320.55
5.6.150.0130.05018.09
5.6.140.0100.08018.22
5.6.130.0270.03718.18
5.6.120.0030.05321.01
5.6.110.0130.08020.99
5.6.100.0100.05320.97
5.6.90.0100.08320.99
5.6.80.0130.07720.43
5.5.350.0030.08020.43
5.5.340.0070.03717.98
5.5.330.0130.06320.56
5.5.320.0370.07020.32
5.5.310.0370.07720.17
5.5.300.0030.08718.02
5.5.290.0070.08017.87
5.5.280.0170.07320.88
5.5.270.0170.07320.82
5.5.260.0030.04720.96
5.5.250.0230.06720.60
5.5.240.0230.05720.28
5.4.450.0330.04719.41
5.4.440.0330.04019.21
5.4.430.0170.04019.43
5.4.420.0400.04719.45
5.4.410.0470.04719.28
5.4.400.0230.04319.11
5.4.390.0770.05019.21
5.4.380.0530.04318.61
5.4.370.0330.06018.70
5.4.360.0500.06318.74
5.4.350.0370.06318.65
5.4.340.0270.08718.49
5.4.320.0040.03812.46
5.4.310.0030.04012.45
5.4.300.0060.03612.45
5.4.290.0070.03612.45
5.4.280.0050.03612.34
5.4.270.0030.04012.35
5.4.260.0100.03412.34
5.4.250.0050.03912.34
5.4.240.0060.03612.34
5.4.230.0040.04112.34
5.4.220.0040.03912.34
5.4.210.0090.03412.34
5.4.200.0040.04112.34
5.4.190.0110.03212.33
5.4.180.0070.03612.34
5.4.170.0060.03712.34
5.4.160.0050.03812.34
5.4.150.0080.04612.34
5.4.140.0070.04512.02
5.4.130.0050.03712.01
5.4.120.0080.03511.96
5.4.110.0060.03811.96
5.4.100.0050.03811.96
5.4.90.0040.03911.96
5.4.80.0090.03411.96
5.4.70.0040.03711.96
5.4.60.0050.03611.96
5.4.50.0040.04111.96
5.4.40.0070.03311.95
5.4.30.0030.03811.95
5.4.20.0050.03711.94
5.4.10.0040.03611.95
5.4.00.0050.03611.43
5.3.290.0060.03912.80
5.3.280.0060.03712.71
5.3.270.0050.04012.73
5.3.260.0040.04112.72
5.3.250.0050.03912.72
5.3.240.0070.03612.72
5.3.230.0110.03512.71
5.3.220.0120.04912.68
5.3.210.0060.04112.68
5.3.200.0080.04412.68
5.3.190.0080.04112.68
5.3.180.0110.04312.68
5.3.170.0080.03912.67
5.3.160.0070.04212.67
5.3.150.0100.04312.68
5.3.140.0090.03512.66
5.3.130.0080.03712.66
5.3.120.0080.04912.65
5.3.110.0070.05012.66
5.3.100.0050.03812.12
5.3.90.0070.03512.09
5.3.80.0070.03612.07
5.3.70.0060.03612.07
5.3.60.0080.03612.07
5.3.50.0070.03512.00
5.3.40.0070.03712.00
5.3.30.0060.04011.94
5.3.20.0070.03611.72
5.3.10.0050.04211.69
5.3.00.0080.04611.68
5.2.170.0070.0409.18
5.2.160.0030.0329.18
5.2.150.0060.0399.18
5.2.140.0050.0299.18
5.2.130.0070.0269.14
5.2.120.0050.0319.13
5.2.110.0050.0299.14
5.2.100.0040.0299.14
5.2.90.0080.0369.14
5.2.80.0050.0399.13
5.2.70.0030.0319.14
5.2.60.0050.0299.09
5.2.50.0070.0359.05
5.2.40.0060.0319.04
5.2.30.0050.0319.00
5.2.20.0030.0308.99
5.2.10.0030.0308.92
5.2.00.0050.0288.78
5.1.60.0020.0258.06
5.1.50.0050.0238.05
5.1.40.0060.0228.04
5.1.30.0030.0288.39
5.1.20.0060.0248.41
5.1.10.0050.0268.14
5.1.00.0040.0308.13
5.0.50.0040.0226.61
5.0.40.0060.0186.48
5.0.30.0030.0326.29
5.0.20.0040.0226.26
5.0.10.0050.0206.23
5.0.00.0030.0376.23
4.4.90.0050.0234.78
4.4.80.0030.0264.76
4.4.70.0050.0214.75
4.4.60.0030.0194.75
4.4.50.0050.0224.77
4.4.40.0040.0264.71
4.4.30.0020.0164.76
4.4.20.0050.0134.85
4.4.10.0070.0114.85
4.4.00.0020.0264.76
4.3.110.0030.0174.67
4.3.100.0020.0154.66
4.3.90.0030.0154.63
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0030.0153.28
4.3.20.0010.0173.26
4.3.10.0000.0183.22
4.3.00.0000.02015.62

preferences:
74.84 ms | 401 KiB | 5 Q