3v4l.org

run code in 300+ PHP versions simultaneously
<?php class bag { protected $vals; public function __construct(array $vals) { $this->vals = $vals; } public function get($key) { return $this->vals[$key]; } } $tmp = 'foo'; $test = array( 'user' => &$tmp, ); $test['_entity'] = &$test['bar']; $bag = new bag(array_intersect_key($test, array('user' => true))); $test['user'] = 'baz'; print $bag->get('user') . "\n"; $tmp = 'foo'; $test = array( 'user' => &$tmp, ); $test['_entity'] = &$test['bar']; $temp = array_merge(array(), array_intersect_key($test, array('user' => true))); $bag = new bag($temp); $test['user'] = 'baz'; print $bag->get('user') . "\n"; $tmp = 'foo'; $test = array( 'user' => &$tmp, ); $test['_entity'] = &$test['bar']; $temp = array(); foreach (array_intersect_key($test, array('user' => true)) as $key => $value) { $temp[$key] = $value; } $bag = new bag($temp); $test['user'] = 'baz'; print $bag->get('user') . "\n";

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)
8.3.70.0070.00716.58
8.3.60.0100.01018.43
8.3.50.0140.00521.14
8.3.40.0150.00318.79
8.3.30.0120.00318.79
8.3.20.0080.00018.76
8.3.10.0080.00020.48
8.3.00.0120.00017.63
8.2.180.0070.01016.63
8.2.170.0100.00722.96
8.2.160.0070.00722.31
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0000.00826.16
8.2.120.0000.00819.83
8.2.110.0030.00620.94
8.2.100.0070.00417.91
8.2.90.0040.00419.12
8.2.80.0040.00418.05
8.2.70.0090.00017.75
8.2.60.0090.00318.05
8.2.50.0050.00318.07
8.2.40.0090.00018.16
8.2.30.0030.00619.95
8.2.20.0000.00817.73
8.2.10.0030.00617.68
8.2.00.0040.00417.78
8.1.280.0090.00625.92
8.1.270.0070.00023.99
8.1.260.0070.00026.35
8.1.250.0050.00328.09
8.1.240.0030.00622.46
8.1.230.0000.01221.00
8.1.220.0040.00418.77
8.1.210.0060.00318.85
8.1.200.0090.00017.34
8.1.190.0040.00417.52
8.1.180.0050.00318.10
8.1.170.0040.00418.61
8.1.160.0040.00418.86
8.1.150.0040.00418.66
8.1.140.0070.00017.38
8.1.130.0030.00317.77
8.1.120.0000.00817.51
8.1.110.0030.00617.51
8.1.100.0020.00517.52
8.1.90.0050.00217.56
8.1.80.0050.00217.52
8.1.70.0090.00017.44
8.1.60.0000.00817.64
8.1.50.0060.00317.51
8.1.40.0000.00817.43
8.1.30.0040.00417.69
8.1.20.0040.00417.66
8.1.10.0030.00617.56
8.1.00.0000.00817.47
8.0.300.0000.00719.89
8.0.290.0040.00416.75
8.0.280.0030.00318.38
8.0.270.0040.00417.29
8.0.260.0040.00416.76
8.0.250.0050.00316.98
8.0.240.0090.00017.01
8.0.230.0040.00416.91
8.0.220.0040.00416.88
8.0.210.0000.00716.88
8.0.200.0030.00316.88
8.0.190.0030.00516.92
8.0.180.0090.00016.82
8.0.170.0040.00416.89
8.0.160.0040.00416.99
8.0.150.0030.00716.95
8.0.140.0040.00716.89
8.0.130.0030.00313.31
8.0.120.0000.00716.78
8.0.110.0040.00416.74
8.0.100.0040.00416.76
8.0.90.0000.00816.95
8.0.80.0090.00916.95
8.0.70.0070.00016.81
8.0.60.0040.00416.89
8.0.50.0040.00416.75
8.0.30.0090.01017.29
8.0.20.0080.01217.40
8.0.10.0040.00416.99
8.0.00.0100.01016.82
7.4.330.0050.00014.74
7.4.320.0030.00316.53
7.4.300.0070.00016.48
7.4.290.0030.00316.63
7.4.280.0040.00416.62
7.4.270.0070.00016.52
7.4.260.0050.00013.20
7.4.250.0040.00416.42
7.4.240.0000.00816.54
7.4.230.0070.00016.37
7.4.220.0080.01216.62
7.4.210.0080.00716.67
7.4.200.0050.00216.37
7.4.190.0030.00316.43
7.4.160.0100.00616.48
7.4.150.0200.00417.40
7.4.140.0150.00217.86
7.4.130.0080.01216.57
7.4.120.0090.00916.66
7.4.110.0000.01716.67
7.4.100.0030.01416.44
7.4.90.0030.01416.42
7.4.80.0130.00319.04
7.4.70.0070.01016.58
7.4.60.0170.00316.57
7.4.50.0040.00016.73
7.4.40.0030.01322.27
7.4.30.0060.00916.45
7.4.00.0040.01414.82
7.3.330.0000.00513.33
7.3.320.0000.00613.20
7.3.310.0000.00816.39
7.3.300.0030.00316.39
7.3.290.0110.00316.38
7.3.280.0040.01316.37
7.3.270.0130.00317.40
7.3.260.0100.01018.24
7.3.250.0110.00916.40
7.3.240.0080.01216.32
7.3.230.0100.00716.51
7.3.210.0030.01316.36
7.3.200.0110.00719.39
7.3.190.0070.01016.43
7.3.180.0090.00616.32
7.3.170.0000.01616.65
7.3.160.0080.00816.56
7.3.120.0070.00914.69
7.3.110.0090.00914.51
7.3.100.0040.01114.81
7.3.90.0110.00014.82
7.3.80.0040.01115.05
7.3.70.0120.00314.95
7.3.60.0070.00415.02
7.3.50.0030.00614.61
7.3.40.0000.01414.73
7.3.30.0150.00314.76
7.3.20.0060.00616.72
7.3.10.0100.00316.55
7.3.00.0070.00716.77
7.2.330.0090.00916.45
7.2.320.0090.00816.67
7.2.310.0140.00716.81
7.2.300.0030.01316.78
7.2.290.0110.00616.74
7.2.250.0070.01015.10
7.2.240.0030.01715.00
7.2.230.0030.01315.28
7.2.220.0000.00915.37
7.2.210.0030.00915.38
7.2.200.0090.00615.10
7.2.190.0070.01014.97
7.2.180.0110.00415.17
7.2.170.0060.00615.09
7.1.330.0070.00715.96
7.1.320.0050.00316.00
7.1.310.0070.00715.88
7.1.300.0160.00015.81
7.1.290.0090.00615.50
7.1.280.0070.00715.90
7.1.270.0000.01515.75
7.1.260.0000.01315.82
7.1.100.0000.01318.21
7.1.70.0040.00417.16
7.1.60.0140.01119.40
7.1.50.0170.01734.75
7.1.00.0030.03322.51
7.0.200.0000.00816.68
7.0.140.0100.06722.21
7.0.110.0300.05720.01
7.0.100.0170.04319.94
7.0.90.0330.04720.03
7.0.80.0470.07319.81
7.0.70.0630.07719.99
7.0.60.0630.08320.02
7.0.50.0600.07320.38
7.0.40.0070.06720.27
7.0.30.0070.05320.05
7.0.20.0100.04720.19
7.0.10.0130.07319.95
7.0.00.0100.08020.25
5.6.280.0070.07020.83
5.6.260.0070.03720.66
5.6.250.0070.03720.46
5.6.240.0070.04020.68
5.6.230.0070.07320.65
5.6.220.0070.07720.63
5.6.210.0070.08020.61
5.6.200.0230.07320.96
5.6.190.0030.08321.20
5.6.180.0100.07020.91
5.6.170.0130.06321.17
5.6.160.0070.08020.96
5.6.150.0030.08320.94
5.6.140.0100.08321.28
5.6.130.0130.06321.20
5.6.120.0200.06320.96
5.6.110.0070.09021.22
5.6.100.0100.08021.22
5.6.90.0100.07321.04
5.6.80.0030.05020.48
5.6.70.0000.06020.58
5.6.60.0070.04720.46
5.6.50.0100.07720.33
5.6.40.0100.06020.30
5.6.30.0070.07320.43
5.6.20.0070.04720.55
5.6.10.0130.06720.31
5.6.00.0200.06720.43
5.5.380.0070.04020.25
5.5.370.0100.06320.50
5.5.360.0000.09020.32
5.5.350.0070.07720.39
5.5.340.0170.06321.03
5.5.330.0000.04721.03
5.5.320.0130.07020.71
5.5.310.0200.06321.03
5.5.300.0000.07320.88
5.5.290.0100.07320.96
5.5.280.0100.07320.98
5.5.270.0100.07720.79
5.5.260.0130.07320.90
5.5.250.0170.04720.67
5.5.240.0100.04020.38
5.5.230.0030.08320.26
5.5.220.0130.07020.37
5.5.210.0070.07020.43
5.5.200.0030.07320.25
5.5.190.0000.08320.27
5.5.180.0070.07720.14
5.5.160.0100.08020.18
5.5.150.0170.07720.40
5.5.140.0100.06720.20
5.5.130.0100.07720.26
5.5.120.0030.07320.27
5.5.110.0100.03320.26
5.5.100.0130.07320.13
5.5.90.0130.07320.23
5.5.80.0070.07720.02
5.5.70.0130.07320.21
5.5.60.0130.07320.00
5.5.50.0030.08720.14
5.5.40.0170.07020.02
5.5.30.0000.08720.10
5.5.20.0070.04319.97
5.5.10.0130.04020.02
5.5.00.0070.04719.96
5.4.450.0030.07719.36
5.4.440.0030.08019.35
5.4.430.0070.07719.42
5.4.420.0030.08019.63
5.4.410.0070.06319.44
5.4.400.0100.06719.15
5.4.390.0100.07019.34
5.4.380.0100.07719.02
5.4.370.0030.04719.01
5.4.360.0200.06018.98
5.4.350.0100.06319.00
5.4.340.0170.06719.02
5.4.320.0070.06319.03
5.4.310.0130.07719.03
5.4.300.0170.06719.22
5.4.290.0170.06019.01
5.4.280.0070.07719.01
5.4.270.0030.04019.24
5.4.260.0070.06719.02
5.4.250.0030.08019.16
5.4.240.0230.06019.09
5.4.230.0100.07019.30
5.4.220.0130.06719.32
5.4.210.0130.06719.32
5.4.200.0070.07319.32
5.4.190.0070.07718.94
5.4.180.0100.07019.18
5.4.170.0030.08319.21
5.4.160.0070.07019.00
5.4.150.0130.05719.21
5.4.140.0030.07316.50
5.4.130.0130.07316.34
5.4.120.0100.03716.50
5.4.110.0130.06316.55
5.4.100.0030.05316.59
5.4.90.0100.06016.51
5.4.80.0070.07716.57
5.4.70.0130.06716.59
5.4.60.0030.07716.45
5.4.50.0130.07016.28
5.4.40.0070.07316.59
5.4.30.0130.07016.54
5.4.20.0100.07016.33
5.4.10.0030.05016.51
5.4.00.0130.06715.74
5.3.290.0030.06314.54
5.3.280.0100.07014.61
5.3.270.0000.08014.60
5.3.260.0030.08014.85
5.3.250.0100.03714.60
5.3.240.0130.06714.70
5.3.230.0070.07314.61
5.3.220.0100.06314.73
5.3.210.0100.07314.59
5.3.200.0000.07714.56
5.3.190.0100.07314.57
5.3.180.0070.07714.43
5.3.170.0070.04314.57
5.3.160.0100.07014.66
5.3.150.0000.07714.60
5.3.140.0100.07014.66
5.3.130.0100.07014.42
5.3.120.0100.07014.52
5.3.110.0070.07314.56
5.3.100.0070.07314.20
5.3.90.0000.04314.16
5.3.80.0030.03714.06
5.3.70.0070.07314.10
5.3.60.0030.07714.05
5.3.50.0070.07313.98
5.3.40.0030.07313.95
5.3.30.0230.05314.15
5.3.20.0130.03313.93
5.3.10.0070.06713.73
5.3.00.0000.07713.64
5.2.170.0100.05712.37
5.2.160.0030.06712.37
5.2.150.0070.05712.37
5.2.140.0100.05712.37
5.2.130.0000.06012.37
5.2.120.0070.05312.37
5.2.110.0100.05712.37
5.2.100.0070.03712.37
5.2.90.0030.06312.37
5.2.80.0030.05712.37
5.2.70.0070.03012.37
5.2.60.0030.06012.37
5.2.50.0030.06312.37
5.2.40.0100.05712.37
5.2.30.0000.05012.37
5.2.20.0070.05712.37
5.2.10.0070.04712.37
5.2.00.0000.04312.37
5.1.60.0070.05012.37
5.1.50.0100.04012.37
5.1.40.0100.04712.37
5.1.30.0070.05712.37
5.1.20.0070.05712.37
5.1.10.0070.04712.37
5.1.00.0070.05012.37
5.0.50.0000.05012.37
5.0.40.0000.02712.37
5.0.30.0100.06012.37
5.0.20.0000.04712.37
5.0.10.0030.04312.37
5.0.00.0030.06312.37
4.4.90.0070.03012.37
4.4.80.0000.03312.37
4.4.70.0070.02712.37
4.4.60.0000.03712.37
4.4.50.0030.03312.37
4.4.40.0000.05712.37
4.4.30.0000.03712.37
4.4.20.0030.03712.37
4.4.10.0030.03712.37
4.4.00.0000.05312.37
4.3.110.0070.03012.37
4.3.100.0000.03712.37
4.3.90.0030.03312.37
4.3.80.0100.04712.37
4.3.70.0000.02712.37
4.3.60.0030.03312.37
4.3.50.0000.03712.37
4.3.40.0030.04312.37
4.3.30.0030.03312.37
4.3.20.0000.03712.37
4.3.10.0030.03012.37
4.3.00.0000.03712.37

preferences:
45.6 ms | 401 KiB | 5 Q