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->var3 = 'c'; $this->var3 = &$this->data->var3; } } $original = new my_class; $new = clone $original; $new->var3 = 'd'; // Output Should Be "c" echo $original->data->var3; echo $original->var3; echo $original->data->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)
8.3.60.0070.00716.88
8.3.50.0110.00722.86
8.3.40.0070.00718.84
8.3.30.0070.00719.05
8.3.20.0070.00020.04
8.3.10.0080.00023.71
8.3.00.0030.00617.63
8.2.180.0150.00617.00
8.2.170.0100.00722.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00420.95
8.2.110.0070.00322.32
8.2.100.0060.00617.78
8.2.90.0050.00319.05
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0060.00317.80
8.2.50.0040.00418.07
8.2.40.0040.00418.03
8.2.30.0070.00317.89
8.2.20.0000.00717.75
8.2.10.0040.00417.93
8.2.00.0080.00017.65
8.1.280.0070.01425.92
8.1.270.0060.00323.87
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.91
8.1.230.0120.00019.11
8.1.220.0090.00017.74
8.1.210.0030.00618.77
8.1.200.0000.01117.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0040.00418.51
8.1.160.0050.00322.01
8.1.150.0000.00718.82
8.1.140.0040.00417.40
8.1.130.0000.00717.84
8.1.120.0050.00217.44
8.1.110.0030.00517.38
8.1.100.0030.00317.44
8.1.90.0040.00417.49
8.1.80.0030.00317.29
8.1.70.0030.00317.28
8.1.60.0060.00317.57
8.1.50.0030.00617.46
8.1.40.0040.00417.55
8.1.30.0030.00617.62
8.1.20.0030.00617.63
8.1.10.0000.00717.53
8.1.00.0030.00617.45
8.0.300.0080.00018.77
8.0.290.0050.00316.75
8.0.280.0040.00418.36
8.0.270.0040.00417.14
8.0.260.0000.00717.12
8.0.250.0070.00017.02
8.0.240.0050.00316.98
8.0.230.0000.00716.88
8.0.220.0040.00416.93
8.0.210.0030.00616.93
8.0.200.0060.00016.84
8.0.190.0080.00416.92
8.0.180.0040.00416.95
8.0.170.0000.00816.89
8.0.160.0030.00616.85
8.0.150.0080.00416.85
8.0.140.0040.00416.84
8.0.130.0060.00013.35
8.0.120.0030.00516.87
8.0.110.0000.00816.88
8.0.100.0070.00016.69
8.0.90.0070.00016.79
8.0.80.0140.00316.95
8.0.70.0080.00017.01
8.0.60.0100.00016.92
8.0.50.0050.00216.79
8.0.30.0100.01116.86
8.0.20.0130.02417.45
8.0.10.0040.00417.01
8.0.00.0130.01016.84
7.4.330.0070.00015.00
7.4.320.0000.00616.46
7.4.300.0000.00616.49
7.4.290.0040.00416.54
7.4.280.0000.00716.64
7.4.270.0040.00416.49
7.4.260.0030.00316.51
7.4.250.0040.00416.52
7.4.240.0030.00316.49
7.4.230.0080.00016.60
7.4.220.0140.01016.61
7.4.210.0120.00816.72
7.4.200.0000.00716.31
7.4.160.0140.00316.49
7.4.150.0120.01217.40
7.4.140.0110.00617.86
7.4.130.0080.00816.40
7.4.120.0100.00816.56
7.4.110.0090.01316.37
7.4.100.0120.00416.49
7.4.90.0090.00916.64
7.4.80.0070.01119.39
7.4.70.0070.01016.41
7.4.60.0090.00916.67
7.4.50.0030.00616.57
7.4.40.0070.01016.32
7.4.30.0090.00616.56
7.4.00.0090.00815.12
7.3.330.0000.00613.35
7.3.320.0060.00013.40
7.3.310.0000.00816.24
7.3.300.0030.00316.48
7.3.290.0060.00616.29
7.3.280.0060.00916.41
7.3.270.0100.00717.40
7.3.260.0070.01016.43
7.3.250.0140.00216.47
7.3.240.0090.00916.49
7.3.230.0180.02516.39
7.3.210.0130.00316.50
7.3.200.0100.00619.39
7.3.190.0120.00616.48
7.3.180.0090.00816.44
7.3.170.0110.00516.29
7.3.160.0140.00316.34
7.3.120.0090.00914.99
7.3.110.0000.01215.03
7.3.100.0060.00614.77
7.3.90.0060.00814.71
7.3.80.0030.01014.83
7.3.70.0060.00914.99
7.3.60.0110.00414.79
7.3.50.0100.00314.82
7.3.40.0090.00614.72
7.3.30.0100.00314.97
7.3.20.0030.00916.71
7.3.10.0070.01316.47
7.3.00.0100.00616.69
7.2.330.0090.01116.62
7.2.320.0100.01316.66
7.2.310.0000.01616.68
7.2.300.0070.01016.70
7.2.290.0120.00316.52
7.2.250.0030.01715.26
7.2.240.0120.00915.03
7.2.230.0090.00915.20
7.2.220.0000.01814.88
7.2.210.0070.01314.91
7.2.200.0070.00715.05
7.2.190.0070.01015.05
7.2.180.0070.00715.06
7.2.170.0000.01014.99
7.2.130.0090.01416.62
7.2.120.0170.00316.95
7.2.110.0160.00816.75
7.2.100.0150.00416.23
7.2.90.0130.00716.49
7.2.80.0150.00116.37
7.2.70.0120.00316.36
7.2.60.0080.00816.87
7.2.50.0060.01316.30
7.2.40.0240.00016.17
7.2.30.0110.00716.32
7.2.20.0090.00916.63
7.2.10.0130.00816.42
7.2.00.0090.00618.14
7.1.330.0070.00715.90
7.1.320.0060.00915.66
7.1.310.0000.01215.97
7.1.300.0000.01315.85
7.1.290.0070.01015.71
7.1.280.0060.00615.42
7.1.270.0000.01215.37
7.1.260.0030.01015.73
7.1.250.0110.00715.80
7.1.200.0040.00815.80
7.1.100.0030.00718.26
7.1.70.0050.00516.96
7.1.60.0130.00619.40
7.1.50.0030.02216.48
7.1.00.0030.07722.43
7.0.200.0000.00716.73
7.0.140.0030.07722.18
7.0.60.0100.06319.98
7.0.50.0000.08017.87
7.0.40.0030.05320.09
7.0.30.0200.04320.30
7.0.20.0270.08020.09
7.0.10.0330.07320.12
7.0.00.0100.06720.23
5.6.210.0070.08020.48
5.6.200.0000.07718.19
5.6.190.0070.07720.48
5.6.180.0300.07020.63
5.6.170.0170.05020.61
5.6.160.0100.07720.71
5.6.150.0030.05018.28
5.6.140.0070.08318.13
5.6.130.0000.08018.18
5.6.120.0070.08320.97
5.6.110.0100.08021.13
5.6.100.0130.05321.00
5.6.90.0130.07020.95
5.6.80.0170.07320.38
5.6.70.3430.03020.28
5.5.350.0070.08320.44
5.5.340.0030.07317.93
5.5.330.0030.04720.29
5.5.320.0470.06720.31
5.5.310.0430.07320.19
5.5.300.0130.05018.08
5.5.290.0070.07318.07
5.5.280.0170.07320.87
5.5.270.0030.05720.86
5.5.260.0070.08720.87
5.5.250.0230.06720.79
5.5.240.0270.07320.19
5.4.450.3770.03319.47
5.4.440.0270.06019.39
5.4.430.1500.05019.55
5.4.420.4000.03319.42
5.4.410.4070.03319.41
5.4.400.3830.03319.07
5.4.390.3700.04319.22
5.4.380.3500.04019.14
5.4.370.3830.03719.15
5.4.360.3730.03319.07
5.4.350.3430.04019.21
5.4.340.3800.04019.12
5.4.320.3730.03719.22
5.4.310.4230.05019.15
5.4.300.4000.02719.21
5.4.290.3830.03019.22
5.4.280.3870.04018.96
5.4.270.3430.03719.18
5.4.260.3970.03319.20
5.4.250.3870.04019.09
5.4.240.3900.03019.23
5.4.230.4000.03719.23
5.4.220.4130.04019.10
5.4.210.3870.03719.20
5.4.200.3830.04319.04
5.4.190.3800.04719.11
5.4.180.3970.04019.05
5.4.170.3930.03719.14
5.4.160.3970.03718.95
5.4.150.4000.03319.13
5.4.140.3870.03716.45
5.4.130.0600.04016.43
5.4.120.0030.07316.50
5.4.110.4400.03316.55
5.4.100.4630.03316.49
5.4.90.4470.03716.58
5.4.80.3830.03016.30
5.4.70.4030.03316.46
5.4.60.3800.03016.20
5.4.50.3670.03016.32
5.4.40.3670.03316.47
5.4.30.3530.04016.61
5.4.20.0100.05316.38
5.4.10.0070.03316.41
5.4.00.2870.03715.87
5.3.290.3570.03714.70
5.3.280.3770.03714.64
5.3.270.4030.05014.62
5.3.260.4100.03014.75
5.3.250.3870.03714.61
5.3.240.3870.04014.49
5.3.230.0100.06714.63
5.3.220.1700.06314.45
5.3.210.3970.03714.64
5.3.200.4530.03714.45
5.3.190.4000.04014.71
5.3.180.3830.03314.60
5.3.170.3670.02714.56
5.3.160.3800.04314.48
5.3.150.3830.03714.59
5.3.140.3800.03314.72
5.3.130.3870.03714.47
5.3.120.2670.03714.58
5.3.110.0000.05314.59
5.3.100.4570.03314.18
5.3.90.4170.04014.07
5.3.80.4370.03714.18
5.3.70.3970.03314.18
5.3.60.4070.03013.93
5.3.50.3700.04014.00
5.3.40.3930.04013.95
5.3.30.3770.04013.91
5.3.20.5100.03013.77
5.3.10.3870.03713.70
5.3.00.4170.03313.71
5.2.170.3170.03011.13
5.2.160.3170.04011.21
5.2.150.3070.02711.12
5.2.140.3070.02711.20
5.2.130.3270.03011.05
5.2.120.3300.02711.29
5.2.110.3270.02711.14
5.2.100.3300.02711.14
5.2.90.2930.03311.07
5.2.80.3200.03311.11
5.2.70.2930.03710.99
5.2.60.3200.02711.00
5.2.50.3400.01711.09
5.2.40.2570.03011.04
5.2.30.2770.03010.97
5.2.20.2500.03311.01
5.2.10.3170.02710.87
5.2.00.3000.03010.79
5.1.60.3170.0209.90
5.1.50.2770.02310.02
5.1.40.2770.02710.15
5.1.30.2470.02710.38
5.1.20.2800.02310.39
5.1.10.2630.02710.14
5.1.00.2770.0239.98
5.0.50.1430.0208.53
5.0.40.1270.0208.32
5.0.30.1330.0308.27
5.0.20.1400.0208.24
5.0.10.1270.0208.22
5.0.00.1370.0308.13
4.4.90.1170.0176.19
4.4.80.1570.0136.19
4.4.70.1570.0176.19
4.4.60.1430.0176.19
4.4.50.1530.0176.19
4.4.40.1430.0336.19
4.4.30.1600.0176.19
4.4.20.1500.0176.19
4.4.10.1570.0136.19
4.4.00.1430.0306.19
4.3.110.1400.0136.19
4.3.100.1300.0136.19
4.3.90.1370.0176.19
4.3.80.1470.0236.19
4.3.70.1430.0176.19
4.3.60.1200.0176.19
4.3.50.1530.0106.19
4.3.40.1470.0236.19
4.3.30.0730.0176.19
4.3.20.0600.0176.19
4.3.10.0670.0176.19
4.3.00.0730.0176.19

preferences:
30.11 ms | 401 KiB | 5 Q