3v4l.org

run code in 300+ PHP versions simultaneously
<?php class my_class { private $data; public $var1; public $var2; public $var3; public function __construct() { $this->data = new stdClass; $this->data->var1 = 'a'; $this->data->var2 = 'b'; $this->data->var3 = 'c'; $this->var1 = &$this->data->var1; $this->var2 = &$this->data->var2; $this->var3 = &$this->data->var3; } } $original = new my_class; $new = clone $original; echo $original->var3; $new->var3 = 'd'; echo $new->var3; // Output Should Be "c" echo $original->var3;

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)
8.3.40.0110.00418.62
8.3.30.0070.00718.92
8.3.20.0070.00020.30
8.3.10.0080.00023.39
8.3.00.0000.00817.63
8.2.170.0140.00022.96
8.2.160.0120.00320.39
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00421.16
8.2.110.0040.00721.02
8.2.100.0080.00317.91
8.2.90.0040.00418.03
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0080.00018.03
8.2.50.0050.00318.07
8.2.40.0040.00418.22
8.2.30.0030.00518.06
8.2.20.0050.00217.74
8.2.10.0030.00618.07
8.2.00.0070.00017.52
8.1.270.0030.00623.81
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00322.54
8.1.230.0070.00320.70
8.1.220.0040.00417.76
8.1.210.0040.00418.77
8.1.200.0060.00317.36
8.1.190.0030.00517.10
8.1.180.0000.00818.10
8.1.170.0030.00518.47
8.1.160.0040.00421.99
8.1.150.0040.00418.80
8.1.140.0040.00417.37
8.1.130.0000.00717.85
8.1.120.0040.00417.46
8.1.110.0000.00717.45
8.1.100.0070.00017.28
8.1.90.0070.00017.45
8.1.80.0040.00417.38
8.1.70.0000.00717.39
8.1.60.0080.00017.64
8.1.50.0030.00517.52
8.1.40.0050.00317.57
8.1.30.0000.00817.63
8.1.20.0060.00617.68
8.1.10.0000.00717.42
8.1.00.0050.00217.39
8.0.300.0070.00020.09
8.0.290.0040.00416.75
8.0.280.0090.00018.47
8.0.270.0000.00717.16
8.0.260.0060.00017.16
8.0.250.0030.00316.91
8.0.240.0050.00316.93
8.0.230.0070.00016.82
8.0.220.0000.00816.80
8.0.210.0000.00716.70
8.0.200.0030.00316.85
8.0.190.0030.00316.92
8.0.180.0070.00016.89
8.0.170.0000.00816.88
8.0.160.0030.00316.91
8.0.150.0000.00716.80
8.0.140.0000.00716.76
8.0.130.0040.00413.21
8.0.120.0040.00416.70
8.0.110.0070.00016.78
8.0.100.0050.00316.84
8.0.90.0050.00216.69
8.0.80.0100.01116.86
8.0.70.0040.00416.87
8.0.60.0070.00316.78
8.0.50.0040.00416.85
8.0.30.0060.01316.95
8.0.20.0080.01017.40
8.0.10.0040.00416.90
8.0.00.0120.00816.51
7.4.330.0000.00615.03
7.4.320.0000.00616.33
7.4.300.0000.00616.49
7.4.290.0030.00316.51
7.4.280.0040.00416.38
7.4.270.0030.00316.40
7.4.260.0040.00716.37
7.4.250.0000.00716.51
7.4.240.0040.00416.54
7.4.230.0040.00416.57
7.4.220.0120.00616.53
7.4.210.0070.00716.53
7.4.200.0030.00516.39
7.4.160.0060.00916.62
7.4.150.0120.01217.40
7.4.140.0100.01017.86
7.4.130.0050.01216.45
7.4.120.0070.00916.54
7.4.110.0040.01216.25
7.4.100.0090.00916.29
7.4.90.0060.01116.57
7.4.80.0040.01319.39
7.4.70.0110.00916.54
7.4.60.0070.01016.48
7.4.50.0000.00416.51
7.4.40.0120.00616.45
7.4.30.0070.00716.56
7.4.00.0080.01015.02
7.3.330.0060.00013.16
7.3.320.0040.00313.27
7.3.310.0000.00716.38
7.3.300.0040.00216.36
7.3.290.0030.01016.23
7.3.280.0050.01116.29
7.3.270.0070.01317.40
7.3.260.0150.00616.49
7.3.250.0140.00516.53
7.3.240.0060.01016.53
7.3.230.0090.00616.52
7.3.210.0060.01016.24
7.3.200.0090.00919.39
7.3.190.0100.01416.42
7.3.180.0060.01016.29
7.3.170.0120.00316.56
7.3.160.0120.00916.52
7.3.120.0090.00914.61
7.3.110.0070.00714.88
7.3.100.0030.01014.96
7.3.90.0090.00014.53
7.3.80.0000.01514.82
7.3.70.0100.00314.87
7.3.60.0080.00814.88
7.3.50.0060.00914.82
7.3.40.0060.00614.63
7.3.30.0090.00314.87
7.3.20.0040.00716.74
7.3.10.0090.00816.50
7.3.00.0100.00516.76
7.2.330.0120.00616.76
7.2.320.0120.00916.89
7.2.310.0040.01216.81
7.2.300.0130.00316.46
7.2.290.0100.00616.54
7.2.250.0130.00715.29
7.2.240.0090.00614.73
7.2.230.0060.01015.18
7.2.220.0060.00715.30
7.2.210.0100.00715.30
7.2.200.0070.00715.27
7.2.190.0090.00014.83
7.2.180.0060.00915.30
7.2.170.0000.01215.29
7.2.130.0030.00616.83
7.2.120.0050.00516.91
7.2.110.0080.00516.94
7.2.100.0030.01016.85
7.2.90.0030.00616.91
7.2.80.0060.00917.02
7.2.70.0030.01017.05
7.2.60.0030.01417.08
7.2.50.0030.00916.98
7.2.40.0040.01117.02
7.2.30.0120.00316.94
7.2.20.0070.00716.98
7.2.10.0060.00616.96
7.2.00.0030.00916.88
7.1.330.0100.00315.87
7.1.320.0030.01015.90
7.1.310.0040.01115.77
7.1.300.0000.01015.98
7.1.290.0090.00915.57
7.1.280.0000.01315.99
7.1.270.0060.00615.80
7.1.260.0140.00015.90
7.1.250.0060.00915.86
7.1.200.0030.00715.70
7.1.70.0040.00417.32
7.1.60.0070.01819.40
7.1.50.0060.01316.72
7.1.00.0030.07722.28
7.0.200.0040.00416.86
7.0.140.0070.07321.96
7.0.120.0000.08021.91
7.0.110.0070.08021.94
7.0.100.0030.08022.08
7.0.90.0000.05022.20
7.0.80.0000.06022.12
7.0.70.0000.08322.02
7.0.60.0030.03722.06
7.0.50.0000.08722.14
7.0.40.0070.06720.06
7.0.30.0070.07719.98
7.0.20.0100.07020.15
7.0.10.0000.05719.91
7.0.00.0000.06720.10
5.6.280.0070.07020.87
5.6.270.0030.07321.09
5.6.260.0030.09020.93
5.6.250.0070.03721.06
5.6.240.0030.07720.99
5.6.230.0030.06320.94
5.6.220.0030.07720.68
5.6.210.0000.06020.95
5.6.200.0000.07720.81
5.6.190.0030.08021.05
5.6.180.0000.07720.71
5.6.170.0070.06720.89
5.6.160.0070.07720.71
5.6.150.0070.08321.04
5.6.140.0000.08021.02
5.6.130.0030.07020.87
5.6.120.0000.07320.96
5.6.110.0070.07720.78
5.6.100.0030.08320.98
5.6.90.0000.03720.75
5.6.80.0000.06320.14
5.6.70.0000.05320.41
5.6.60.0030.04020.23
5.6.50.0100.07720.39
5.6.40.0070.03320.15
5.6.30.0030.07720.24
5.6.20.0000.03720.34
5.6.10.0030.06320.06
5.6.00.0030.03720.13
5.5.380.0030.07017.49
5.5.370.0100.04717.70
5.5.360.0000.03717.69
5.5.350.0000.07717.55
5.5.340.0030.04017.93
5.5.330.0100.07317.85
5.5.320.0030.04718.05
5.5.310.0000.08317.83
5.5.300.0070.07717.83
5.5.290.0000.08018.04
5.5.280.0000.05018.05
5.5.270.0030.04018.24
5.5.260.0030.04018.09
5.5.250.0070.07317.72
5.5.240.0070.03317.21
5.5.230.0000.05317.45
5.5.220.0030.04717.49
5.5.210.0000.05017.48
5.5.200.0000.06717.20
5.5.190.0070.03017.58
5.5.180.0030.05317.57
5.5.160.0070.03317.31
5.5.150.0000.03717.62
5.5.140.0000.04317.45
5.5.130.0130.04717.28
5.5.120.0000.03717.39
5.5.110.0000.04317.27
5.5.100.0030.03717.18
5.5.90.0000.03317.16
5.5.80.0000.03017.15
5.5.70.0000.03317.32
5.5.60.0000.03017.18
5.5.50.0030.02717.34
5.5.40.0000.03717.16
5.5.30.0000.03017.05
5.5.20.0000.03317.29
5.5.10.0000.03317.28
5.5.00.0000.03017.45
5.4.450.0030.04319.41
5.4.440.0030.08319.26
5.4.430.0000.04019.43
5.4.420.0070.05019.61
5.4.410.0070.03719.46
5.4.400.0000.06318.98
5.4.390.0030.04018.97
5.4.380.0000.05019.03
5.4.370.0070.05718.95
5.4.360.0000.07018.90
5.4.350.0030.04318.95
5.4.340.0030.03719.26
5.4.320.0030.05719.18
5.4.310.0070.06019.09
5.4.300.0070.03319.28
5.4.290.0070.03019.13
5.4.280.0030.05018.89
5.4.270.0070.03318.93
5.4.260.0030.03319.03
5.4.250.0030.03719.03
5.4.240.0000.03319.09
5.4.230.0000.03019.25
5.4.220.0030.03018.95
5.4.210.0000.03019.25
5.4.200.0030.03019.25
5.4.190.0070.02319.02
5.4.180.0030.03318.89
5.4.170.0000.03319.24
5.4.160.0030.03019.10
5.4.150.0030.03718.92
5.4.140.0000.03016.30
5.4.130.0030.02716.27
5.4.120.0000.03016.45
5.4.110.0000.03016.21
5.4.100.0030.02716.36
5.4.90.0030.02716.30
5.4.80.0030.02716.34
5.4.70.0070.02316.48
5.4.60.0000.03016.42
5.4.50.0000.03016.18
5.4.40.0000.03016.38
5.4.30.0000.03016.47
5.4.20.0000.03016.43
5.4.10.0000.03316.31
5.4.00.0000.03016.00
5.3.290.0100.03314.63
5.3.280.0000.03014.70
5.3.270.0000.03314.73
5.3.260.0030.02714.46
5.3.250.0030.02714.62
5.3.240.0000.03014.62
5.3.230.0030.03014.61
5.3.220.0000.03014.58
5.3.210.0000.03014.42
5.3.200.0030.02714.69
5.3.190.0000.03014.70
5.3.180.0030.03714.66
5.3.170.0030.03314.59
5.3.160.0000.03314.57
5.3.150.0000.03014.57
5.3.140.0030.02714.55
5.3.130.0070.03314.77
5.3.120.0000.03014.55
5.3.110.0000.03014.63
5.3.100.0000.03014.06
5.3.90.0030.02714.14
5.3.80.0000.03014.09
5.3.70.0000.03014.24
5.3.60.0030.03314.02
5.3.50.0000.03013.80
5.3.40.0030.03014.17
5.3.30.0000.03313.76
5.3.20.0000.03313.80
5.3.10.0000.03713.65
5.3.00.0030.05313.63
5.2.170.0000.02711.11
5.2.160.0000.02311.28
5.2.150.0000.02711.18
5.2.140.0000.02711.27
5.2.130.0030.02711.12
5.2.120.0000.06011.18
5.2.110.0000.04011.08
5.2.100.0000.05711.18
5.2.90.0000.04011.22
5.2.80.0030.04311.11
5.2.70.0000.04311.10
5.2.60.0000.06311.01
5.2.50.0000.06011.03
5.2.40.0030.03311.00
5.2.30.0030.02311.03
5.2.20.0030.05310.92
5.2.10.0070.04710.83
5.2.00.0030.04710.57
5.1.60.0000.0679.91
5.1.50.0070.03710.00
5.1.40.0030.0439.95
5.1.30.0030.03710.35
5.1.20.0030.03710.23
5.1.10.0000.03310.22
5.1.00.0070.0439.90
5.0.50.0000.0239.49
5.0.40.0030.0439.49
5.0.30.0070.0679.49
5.0.20.0000.0409.49
5.0.10.0030.0479.49
5.0.00.0030.0539.49
4.4.90.0030.0309.49
4.4.80.0000.0339.49
4.4.70.0030.0309.49
4.4.60.0000.0379.49
4.4.50.0000.0339.49
4.4.40.0000.0309.49
4.4.30.0000.0179.49
4.4.20.0000.0309.49
4.4.10.0030.0139.49
4.4.00.0030.0239.49
4.3.110.0000.0379.49
4.3.100.0000.0279.49
4.3.90.0030.0209.49
4.3.80.0000.0509.49
4.3.70.0000.0209.49
4.3.60.0030.0309.49
4.3.50.0000.0379.49
4.3.40.0000.0409.49
4.3.30.0000.0239.49
4.3.20.0000.0179.49
4.3.10.0030.0309.49
4.3.00.0000.0179.49

preferences:
42.1 ms | 400 KiB | 5 Q