3v4l.org

run code in 300+ PHP versions simultaneously
<?php // the unroll: $arr = array(1 => 'one', 2 => 'two', 3 => 'three'); $a = &$arr[1]; var_dump($a,$arr); $a = &$arr[2]; var_dump($a,$arr); $a = &$arr[3]; var_dump($a,$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)
8.3.40.0120.00318.59
8.3.30.0190.00020.34
8.3.20.0050.00320.33
8.3.10.0080.00021.10
8.3.00.0040.00422.32
8.2.170.0120.00922.96
8.2.160.0070.01422.21
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0080.00020.75
8.2.110.0040.00421.04
8.2.100.0000.01118.03
8.2.90.0060.00319.11
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0000.00818.03
8.2.50.0000.00918.10
8.2.40.0050.00318.34
8.2.30.0030.00319.37
8.2.20.0000.00717.64
8.2.10.0070.00017.75
8.2.00.0000.00817.68
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00722.54
8.1.230.0040.00720.31
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0040.00417.10
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.59
8.1.160.0050.00318.70
8.1.150.0070.00018.53
8.1.140.0000.00717.39
8.1.130.0040.00417.73
8.1.120.0030.00317.39
8.1.110.0000.00817.38
8.1.100.0040.00417.41
8.1.90.0030.00317.35
8.1.80.0000.00817.39
8.1.70.0000.00717.37
8.1.60.0060.00317.55
8.1.50.0050.00317.33
8.1.40.0040.00417.43
8.1.30.0000.00817.55
8.1.20.0040.00417.63
8.1.10.0000.00817.31
8.1.00.0030.00617.40
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0000.00818.38
8.0.270.0030.00317.19
8.0.260.0040.00416.64
8.0.250.0070.00016.83
8.0.240.0040.00416.90
8.0.230.0000.00716.74
8.0.220.0000.00716.83
8.0.210.0030.00316.83
8.0.200.0040.00416.77
8.0.190.0000.00716.89
8.0.180.0050.00216.85
8.0.170.0070.00016.81
8.0.160.0000.00716.78
8.0.150.0040.00416.81
8.0.140.0040.00416.67
8.0.130.0030.00313.18
8.0.120.0080.00016.82
8.0.110.0000.00916.83
8.0.100.0000.00716.69
8.0.90.0030.00416.63
8.0.80.0060.00916.86
8.0.70.0040.00416.69
8.0.60.0000.00816.69
8.0.50.0000.00716.70
8.0.30.0120.01016.88
8.0.20.0110.00817.40
8.0.10.0070.00016.97
8.0.00.0160.00916.63
7.4.330.0030.00316.69
7.4.320.0000.00716.48
7.4.300.0000.00616.51
7.4.290.0000.00716.33
7.4.280.0030.00316.52
7.4.270.0030.00316.58
7.4.260.0030.00313.22
7.4.250.0040.00416.37
7.4.240.0030.00316.46
7.4.230.0030.00316.52
7.4.220.0100.00716.48
7.4.210.0090.00616.55
7.4.200.0060.00016.46
7.4.190.0030.00316.63
7.4.160.0100.00716.36
7.4.150.0070.01017.40
7.4.140.0110.00717.86
7.4.130.0080.00816.33
7.4.120.0100.00716.42
7.4.110.0070.01116.30
7.4.100.0120.00616.49
7.4.90.0080.01216.60
7.4.80.0120.01519.39
7.4.70.0170.00616.17
7.4.60.0050.01116.47
7.4.50.0000.00816.32
7.4.40.0030.01322.77
7.4.30.0070.01116.44
7.4.00.0100.00714.99
7.3.330.0050.00013.08
7.3.320.0030.00313.04
7.3.310.0070.00016.14
7.3.300.0000.00716.22
7.3.290.0060.00716.21
7.3.280.0100.00816.21
7.3.270.0160.00317.40
7.3.260.0090.00918.24
7.3.250.0130.00716.47
7.3.240.0110.00716.45
7.3.230.0090.00916.48
7.3.210.0080.00916.18
7.3.200.0070.01419.39
7.3.190.0140.00616.17
7.3.180.0160.00016.32
7.3.170.0050.01116.36
7.3.160.0030.01316.50
7.3.120.0090.00314.64
7.2.330.0060.01116.53
7.2.320.0090.01316.57
7.2.310.0180.00516.31
7.2.300.0100.00716.27
7.2.290.0040.01116.28
7.2.60.0040.00716.70
7.2.00.0070.00719.32
7.1.200.0030.00315.55
7.1.100.0000.01518.00
7.1.70.0000.00817.10
7.1.60.0060.01919.17
7.1.50.0100.01417.07
7.1.00.0070.06022.43
7.0.200.0050.00516.66
7.0.140.0070.07022.15
7.0.100.0130.03719.99
7.0.90.0070.05320.04
7.0.80.0100.06019.95
7.0.70.0070.06319.86
7.0.60.0000.05719.87
7.0.50.0000.05320.16
7.0.40.0070.04020.12
7.0.30.0070.09020.14
7.0.20.0200.07720.14
7.0.10.0100.08020.10
7.0.00.0000.08020.16
5.6.280.0070.07020.85
5.6.250.0130.03720.58
5.6.240.0070.08320.68
5.6.230.0170.08020.66
5.6.220.0100.08320.59
5.6.210.0200.07320.55
5.6.200.0070.05021.03
5.6.190.0000.05020.99
5.6.180.0170.06721.11
5.6.170.0170.06721.04
5.6.160.0170.07321.04
5.6.150.0100.04721.04
5.6.140.0030.08021.10
5.6.130.0170.07321.01
5.6.120.0030.06721.01
5.6.110.0070.07321.09
5.6.100.0100.07020.99
5.6.90.0030.06721.08
5.6.80.0130.04020.39
5.6.70.0030.07320.45
5.6.60.0000.04320.31
5.6.50.0030.05020.38
5.6.40.0100.07720.28
5.6.30.0130.04020.39
5.6.20.0130.06320.42
5.6.10.0070.08720.40
5.6.00.0130.07720.29
5.5.380.0030.06020.44
5.5.370.0070.07720.37
5.5.360.0100.05320.44
5.5.350.0100.04720.33
5.5.340.0070.04020.64
5.5.330.0000.08320.72
5.5.320.0030.09020.88
5.5.310.0100.07720.82
5.5.300.0100.08720.79
5.5.290.0100.07020.79
5.5.280.0170.08320.77
5.5.270.0100.07720.78
5.5.260.0100.06720.85
5.5.250.0100.08020.54
5.5.240.0000.07020.25
5.5.230.0100.07320.15
5.5.220.0070.08020.19
5.5.210.0100.08020.26
5.5.200.0200.06020.12
5.5.190.0070.08320.11
5.5.180.0130.07720.07
5.5.160.0070.07720.16
5.5.150.0070.08020.11
5.5.140.0070.07320.11
5.5.130.0100.05320.11
5.5.120.0070.07020.20
5.5.110.0030.09020.16
5.5.100.0030.04720.07
5.5.90.0030.05319.93
5.5.80.0070.05020.14
5.5.70.0070.08019.94
5.5.60.0170.06319.93
5.5.50.0170.04320.14
5.5.40.0170.07020.14
5.5.30.0100.05320.14
5.5.20.0130.07019.94
5.5.10.0130.07019.98
5.5.00.0130.07020.11
5.4.450.0170.06719.33
5.4.440.0070.08019.30
5.4.430.0000.04719.39
5.4.420.0170.07319.37
5.4.410.0070.04319.31
5.4.400.0070.06719.08
5.4.390.0030.07719.03
5.4.380.0070.07019.14
5.4.370.0100.05719.11
5.4.360.0070.08019.02
5.4.350.0100.05019.12
5.4.340.0100.08019.03
5.4.320.0070.07018.91
5.4.310.0130.03319.02
5.4.300.0130.07319.09
5.4.290.0070.04318.94
5.4.280.0070.05318.94
5.4.270.0070.07319.11
5.4.260.0030.05719.02
5.4.250.0070.04719.02
5.4.240.0100.03719.24
5.4.230.0100.07318.95
5.4.220.0030.07318.97
5.4.210.0100.06319.04
5.4.200.0070.06019.01
5.4.190.0070.04318.89
5.4.180.0070.08019.02
5.4.170.0070.06319.01
5.4.160.0070.05319.02
5.4.150.0100.06319.16
5.4.140.0000.07716.21
5.4.130.0030.03716.23
5.4.120.0030.06316.27
5.4.110.0170.03016.26
5.4.100.0170.03016.42
5.4.90.0030.03716.21
5.4.80.0070.04016.36
5.4.70.0170.06316.36
5.4.60.0100.03316.19
5.4.50.0100.06316.38
5.4.40.0070.06716.36
5.4.30.0070.04316.36
5.4.20.0100.05016.17
5.4.10.0200.06716.49
5.4.00.0070.06715.77
5.3.290.0030.05014.61
5.3.280.0100.08014.60
5.3.270.0130.06714.58
5.3.260.0070.07014.57
5.3.250.0070.04714.54
5.3.240.0130.05714.54
5.3.230.0170.07314.61
5.3.220.0130.04714.43
5.3.210.0070.04314.57
5.3.200.0100.03014.54
5.3.190.0030.04014.43
5.3.180.0070.06314.51
5.3.170.0070.07314.56
5.3.160.0130.04714.42
5.3.150.0000.04314.51
5.3.140.0030.05014.42
5.3.130.0130.07314.54
5.3.120.0130.04014.54
5.3.110.0100.06014.51
5.3.100.0070.07013.86
5.3.90.0070.04013.97
5.3.80.0070.04313.86
5.3.70.0000.04013.79
5.3.60.0000.06014.00
5.3.50.0000.08313.94
5.3.40.0030.05313.70
5.3.30.0030.06313.91
5.3.20.0070.04313.55
5.3.10.0070.04013.59
5.3.00.0030.03713.58
5.2.170.0100.06311.61
5.2.160.0030.06011.61
5.2.150.0070.04711.61
5.2.140.0000.05311.61
5.2.130.0100.02311.61
5.2.120.0030.06011.61
5.2.110.0030.03011.61
5.2.100.0000.03011.61
5.2.90.0030.03311.61
5.2.80.0000.03311.61
5.2.70.0000.03011.61
5.2.60.0030.02711.61
5.2.50.0000.03011.61
5.2.40.0100.02311.61
5.2.30.0030.03011.61
5.2.20.0070.02711.61
5.2.10.0070.02711.61
5.2.00.0070.03011.61
5.1.60.0070.04711.61
5.1.50.0030.02711.61
5.1.40.0070.02711.61
5.1.30.0030.02711.61
5.1.20.0000.03011.61
5.1.10.0030.02711.61
5.1.00.0030.02711.61
5.0.50.0000.02011.61
5.0.40.0030.02711.61
5.0.30.0030.03311.61
5.0.20.0030.01711.63
5.0.10.0000.02011.63
5.0.00.0000.03011.63
4.4.90.0070.01011.61
4.4.80.0000.02011.61
4.4.70.0030.01311.61
4.4.60.0030.01311.61
4.4.50.0030.01311.61
4.4.40.0030.02311.61
4.4.30.0000.01711.61
4.4.20.0000.02011.61
4.4.10.0070.01011.61
4.4.00.0030.02311.61
4.3.110.0000.01711.61
4.3.100.0030.01311.63
4.3.90.0000.01711.63
4.3.80.0030.02311.63
4.3.70.0000.01711.63
4.3.60.0000.01711.63
4.3.50.0000.01711.63
4.3.40.0070.02011.63
4.3.30.0030.01311.63
4.3.20.0070.00711.63
4.3.10.0000.01711.63
4.3.00.0000.02311.63

preferences:
43.83 ms | 400 KiB | 5 Q