3v4l.org

run code in 300+ PHP versions simultaneously
<?php $originalObj = new A; class A { public $foo = 'default value'; } // Important note: If you remove the &, the bug disappears. function changeFooWithUnusedReference( &$unusedReferenceToFoo, $newValue ) { global $originalObj; $newObj = clone $originalObj; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; $newObj->foo = $newValue; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; } changeFooWithUnusedReference( $originalObj->foo, 'Some other value' );

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)
8.3.60.0090.00618.30
8.3.50.0120.00317.34
8.3.40.0110.00418.71
8.3.30.0110.00318.90
8.3.20.0030.00618.79
8.3.10.0000.00820.53
8.3.00.0050.00319.15
8.2.180.0070.00718.16
8.2.170.0070.00718.94
8.2.160.0100.00722.96
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0090.00019.81
8.2.110.0090.00021.10
8.2.100.0090.00317.72
8.2.90.0000.00819.23
8.2.80.0030.00617.80
8.2.70.0060.00317.50
8.2.60.0040.00418.03
8.2.50.0030.00618.07
8.2.40.0050.00217.93
8.2.30.0000.00718.13
8.2.20.0040.00417.55
8.2.10.0000.00717.49
8.2.00.0080.00017.53
8.1.280.0130.00625.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00622.57
8.1.230.0110.00020.91
8.1.220.0040.00417.79
8.1.210.0000.00818.89
8.1.200.0030.00617.35
8.1.190.0080.00017.42
8.1.180.0030.00618.10
8.1.170.0080.00018.83
8.1.160.0000.00718.87
8.1.150.0000.00718.65
8.1.140.0070.00317.52
8.1.130.0030.00517.82
8.1.120.0040.00417.50
8.1.110.0030.00517.30
8.1.100.0000.00817.45
8.1.90.0070.00017.48
8.1.80.0000.00717.48
8.1.70.0030.00317.40
8.1.60.0030.00517.48
8.1.50.0000.00717.49
8.1.40.0040.00417.50
8.1.30.0000.00717.67
8.1.20.0080.00017.68
8.1.10.0040.00417.51
8.1.00.0040.00417.55
8.0.300.0030.00619.85
8.0.290.0040.00416.75
8.0.280.0030.00318.56
8.0.270.0000.00817.31
8.0.260.0030.00316.83
8.0.250.0000.00817.01
8.0.240.0100.00017.00
8.0.230.0030.00317.02
8.0.220.0000.00716.81
8.0.210.0030.00416.84
8.0.200.0040.00416.97
8.0.190.0090.00016.87
8.0.180.0000.00716.91
8.0.170.0060.00316.88
8.0.160.0050.00316.79
8.0.150.0050.00516.74
8.0.140.0080.00016.89
8.0.130.0050.00013.37
8.0.120.0030.00516.77
8.0.110.0070.00016.93
8.0.100.0000.00716.90
8.0.90.0050.00316.92
8.0.80.0060.00916.93
8.0.70.0000.00816.78
8.0.60.0040.00416.74
8.0.50.0000.00816.88
8.0.30.0130.00916.98
8.0.20.0130.00617.22
8.0.10.0070.00017.07
8.0.00.0090.00916.81
7.4.330.0000.00514.70
7.4.320.0060.00016.57
7.4.300.0000.00616.54
7.4.290.0040.00416.52
7.4.280.0060.00316.63
7.4.270.0030.00316.53
7.4.260.0000.00713.18
7.4.250.0080.00016.61
7.4.240.0000.00716.58
7.4.230.0000.00716.35
7.4.220.0030.01216.50
7.4.210.0080.00816.53
7.4.200.0030.00316.67
7.4.190.0030.00316.74
7.4.160.0090.00616.57
7.4.150.0030.01317.07
7.4.140.0130.00417.17
7.4.130.0100.01016.38
7.4.120.0040.01316.36
7.4.110.0120.01216.50
7.4.100.0090.01216.54
7.4.90.0150.00316.30
7.4.80.0070.01118.80
7.4.70.0090.01316.38
7.4.60.0110.00616.27
7.4.50.0040.00416.22
7.4.40.0060.00921.94
7.4.30.0140.00316.34
7.4.00.0000.01615.14
7.3.330.0050.00013.27
7.3.320.0000.00613.22
7.3.310.0000.00716.21
7.3.300.0030.00316.32
7.3.290.0130.00316.30
7.3.280.0050.00916.28
7.3.270.0120.00617.07
7.3.260.0090.01018.24
7.3.250.0110.01016.29
7.3.240.0160.00016.54
7.3.230.0030.01316.51
7.3.210.0080.00816.37
7.3.200.0130.00619.39
7.3.190.0060.01316.46
7.3.180.0100.00616.43
7.3.170.0060.00916.55
7.3.160.0160.00316.38
7.3.120.0130.00314.98
7.3.110.0060.01014.88
7.3.100.0080.00814.91
7.3.90.0040.01114.86
7.3.80.0110.00414.80
7.3.70.0070.00714.77
7.3.60.0030.00914.72
7.3.50.0070.00714.63
7.3.40.0070.00314.72
7.3.30.0110.00414.83
7.3.20.0000.01716.84
7.3.10.0080.00916.61
7.3.00.0110.00716.48
7.2.330.0120.00616.76
7.2.320.0070.01016.70
7.2.310.0110.00616.74
7.2.300.0160.00716.82
7.2.290.0100.00716.47
7.2.240.0070.01015.02
7.2.230.0040.00815.09
7.2.220.0080.00815.04
7.2.210.0110.00414.75
7.2.200.0060.01215.11
7.2.190.0140.00315.26
7.2.180.0130.00015.19
7.2.170.0070.00715.02
7.2.160.0130.00315.02
7.2.150.0030.01016.85
7.2.140.0100.00316.67
7.2.130.0080.00816.73
7.2.120.0100.00816.96
7.2.110.0110.00616.65
7.2.100.0090.00716.68
7.2.90.0060.01016.67
7.2.80.0030.01016.63
7.2.70.0090.00917.01
7.2.60.0050.00916.84
7.2.50.0060.01116.73
7.2.40.0080.00816.78
7.2.30.0090.00916.76
7.2.20.0070.01016.64
7.2.10.0100.00616.61
7.2.00.0020.01217.68
7.1.330.0060.00615.48
7.1.320.0090.00015.99
7.1.310.0040.01115.98
7.1.300.0070.00715.92
7.1.290.0070.00715.89
7.1.280.0080.00815.89
7.1.270.0030.01315.86
7.1.260.0030.01015.64
7.1.250.0110.00615.70
7.1.200.0000.01515.89
7.1.100.0160.00618.19
7.1.70.0040.00417.25
7.1.60.0100.01319.40
7.1.50.0000.02117.00
7.1.00.0000.07722.57
7.0.200.0040.00716.77
7.0.140.0000.07722.07
7.0.120.0000.03322.05
7.0.60.0030.07720.04
7.0.50.0130.06717.88
7.0.40.0170.07017.81
7.0.30.0100.08017.82
7.0.20.0130.04317.71
7.0.10.0030.05017.70
7.0.00.0070.08317.79
5.6.280.0000.07720.82
5.6.210.0070.03720.55
5.6.200.0170.08018.22
5.6.190.0070.08018.17
5.6.180.0030.04718.12
5.6.170.0070.07718.29
5.6.160.0070.04718.12
5.6.150.0100.03318.21
5.6.140.0070.04018.18
5.6.130.0070.03718.23
5.6.120.0100.03718.27
5.6.110.0030.04018.17
5.6.100.0030.04018.27
5.6.90.0030.04318.26
5.6.80.0000.04017.56
5.6.70.0070.03317.65
5.6.60.0030.03717.64
5.6.50.0000.04317.54
5.6.40.0100.03317.59
5.6.30.0030.03717.54
5.6.20.0030.03717.51
5.6.10.0030.03717.55
5.6.00.0000.04017.50
5.5.350.0000.04720.40
5.5.340.0100.07017.98
5.5.330.0070.08018.05
5.5.320.0030.05317.97
5.5.310.0070.05717.95
5.5.300.0000.05017.92
5.5.290.0030.04018.07
5.5.280.0070.04318.06
5.5.270.0030.04718.09
5.5.260.0030.04017.99
5.5.250.0030.03717.90
5.5.240.0070.04017.31
5.5.230.0070.03317.36
5.5.220.0000.04017.32
5.5.210.0000.04017.37
5.5.200.0000.04317.44
5.5.190.0070.03317.42
5.5.180.0000.04017.39
5.5.160.0030.03717.45
5.5.150.0030.03717.29
5.5.140.0030.04017.38
5.5.130.0030.04017.31
5.5.120.0070.03317.37
5.5.110.0100.03017.32
5.5.100.0100.04317.21
5.5.90.0070.05717.33
5.5.80.0070.07017.30
5.5.70.0030.06017.33
5.5.60.0130.04717.20
5.5.50.0130.05317.19
5.5.40.0030.07717.22
5.5.30.0070.07317.27
5.5.20.0070.06317.22
5.5.10.0070.08017.30
5.5.00.0030.08017.16
5.4.450.0030.04019.45
5.4.440.0070.03319.34
5.4.430.0100.03319.41
5.4.420.0070.03319.36
5.4.410.0070.03719.29
5.4.400.0070.03319.27
5.4.390.0030.03719.01
5.4.380.0030.03719.05
5.4.370.0070.03719.05
5.4.360.0000.04019.12
5.4.350.0100.03719.13
5.4.340.0000.04018.98
5.4.320.0000.04719.12
5.4.310.0000.04019.14
5.4.300.0070.03319.26
5.4.290.0070.03319.00
5.4.280.0030.03719.12
5.4.270.0100.03019.04
5.4.260.0000.04019.04
5.4.250.0130.05719.04
5.4.240.0170.07019.04
5.4.230.0000.07719.26
5.4.220.0170.03019.01
5.4.210.0030.04019.02
5.4.200.0100.06019.11
5.4.190.0130.06718.99
5.4.180.0030.05019.14
5.4.170.0030.08319.04
5.4.160.0100.06319.03
5.4.150.0130.06319.25
5.4.140.0100.04716.46
5.4.130.0070.07316.35
5.4.120.0030.04716.34
5.4.110.0130.06016.47
5.4.100.0100.07316.46
5.4.90.0070.04016.61
5.4.80.0000.07716.62
5.4.70.0000.08016.44
5.4.60.0070.06316.31
5.4.50.0100.07016.48
5.4.40.0000.04316.44
5.4.30.0100.03016.41
5.4.20.0070.07716.31
5.4.10.0070.07716.36
5.4.00.0070.04315.84
5.3.290.0070.03314.69
5.3.280.0000.05314.61
5.3.270.0070.06314.65
5.3.260.0000.05314.69
5.3.250.0030.03714.66
5.3.240.0100.07714.64
5.3.230.0070.07714.81
5.3.220.0000.08314.64
5.3.210.0070.06014.61
5.3.200.0070.07014.62
5.3.190.0070.06014.57
5.3.180.0130.06714.57
5.3.170.0070.08314.52
5.3.160.0100.07314.64
5.3.150.0070.06714.57
5.3.140.0100.06014.62
5.3.130.0070.05014.60
5.3.120.0030.04014.61
5.3.110.0070.06714.55
5.3.100.0100.07713.89
5.3.90.0070.04713.97
5.3.80.0000.04314.04
5.3.70.0100.06714.11
5.3.60.0070.07714.02
5.3.50.0100.03313.97
5.3.40.0070.03714.00
5.3.30.0000.07713.91
5.3.20.0170.06713.76
5.3.10.0000.05313.72
5.3.00.0130.03713.66
5.2.170.0030.03011.25
5.2.160.0070.02711.20
5.2.150.0030.03011.20
5.2.140.0130.05311.13
5.2.130.0100.03710.95
5.2.120.0000.05011.07
5.2.110.0070.05711.18
5.2.100.0030.03711.18
5.2.90.0030.05311.15
5.2.80.0070.05711.06
5.2.70.0070.06011.06
5.2.60.0030.03311.15
5.2.50.0030.06011.05
5.2.40.0070.06011.04
5.2.30.0070.05310.82
5.2.20.0000.05010.80
5.2.10.0100.03710.85
5.2.00.0100.04310.72
5.1.60.0030.03710.21
5.1.50.0000.0609.94
5.1.40.0000.05310.04
5.1.30.0000.06710.28
5.1.20.0070.02310.45
5.1.10.0030.04710.06
5.1.00.0000.03010.16
5.0.50.0100.0408.58
5.0.40.0030.0238.40
5.0.30.0070.0338.14
5.0.20.0000.0338.11
5.0.10.0070.0438.15
5.0.00.0070.0638.07
4.4.90.0000.0207.57
4.4.80.0070.0337.57
4.4.70.0000.0207.57
4.4.60.0030.0337.57
4.4.50.0030.0277.57
4.4.40.0030.0337.57
4.4.30.0030.0337.57
4.4.20.0000.0207.57
4.4.10.0070.0107.57
4.4.00.0030.0377.57
4.3.110.0000.0237.57
4.3.100.0070.0137.57
4.3.90.0000.0337.57
4.3.80.0000.0477.57
4.3.70.0030.0277.57
4.3.60.0030.0337.57
4.3.50.0070.0277.57
4.3.40.0000.0537.57
4.3.30.0000.0377.57
4.3.20.0000.0407.57
4.3.10.0070.0307.57
4.3.00.0000.0277.57

preferences:
36.29 ms | 401 KiB | 5 Q