3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $bar; private $baz; public function __construct($bar, $baz) { $this->bar = $bar; $this->baz = $baz; } public function __debugInfo() { return ['bar' => $this->bar]; } } $foo = new Foo('abc', 'def'); print_r(debug_backtrace()); print_r($foo); var_dump(debug_zval_dump($foo)); echo var_export($foo);

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)
8.3.60.0070.01116.75
8.3.50.0160.00521.32
8.3.40.0140.00418.80
8.3.30.0070.01018.80
8.3.20.0070.00720.21
8.3.10.0070.00021.73
8.3.00.0040.00419.79
8.2.180.0120.00316.63
8.2.170.0090.00622.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0030.00617.62
8.2.110.0090.00020.52
8.2.100.0090.00317.85
8.2.90.0030.00618.34
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0000.00718.16
8.2.50.0000.00818.07
8.2.40.0000.00821.06
8.2.30.0000.00719.96
8.2.20.0050.00217.81
8.2.10.0000.00718.05
8.2.00.0000.00718.13
8.1.280.0060.01225.92
8.1.270.0040.00420.25
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00422.14
8.1.230.0050.00520.91
8.1.220.0080.00017.91
8.1.210.0000.00818.77
8.1.200.0000.00917.25
8.1.190.0000.00917.23
8.1.180.0080.00018.10
8.1.170.0030.00518.49
8.1.160.0060.00321.87
8.1.150.0000.00718.82
8.1.140.0050.00317.30
8.1.130.0000.00717.58
8.1.120.0040.00417.44
8.1.110.0040.00417.39
8.1.100.0000.00717.32
8.1.90.0000.00717.40
8.1.80.0000.00817.30
8.1.70.0000.00817.32
8.1.60.0040.00417.48
8.1.50.0040.00417.60
8.1.40.0030.00517.43
8.1.30.0040.00417.72
8.1.20.0000.00917.70
8.1.10.0000.00817.48
8.1.00.0000.00817.55
8.0.300.0040.00420.12
8.0.290.0040.00416.75
8.0.280.0000.00718.45
8.0.270.0000.00717.10
8.0.260.0000.00717.27
8.0.250.0070.00016.96
8.0.240.0000.00716.92
8.0.230.0000.00816.73
8.0.220.0000.00716.88
8.0.210.0000.00716.87
8.0.200.0060.00016.87
8.0.190.0000.00916.89
8.0.180.0070.00016.81
8.0.170.0030.00616.83
8.0.160.0070.00016.73
8.0.150.0000.00716.78
8.0.140.0040.00416.79
8.0.130.0000.00613.28
8.0.120.0040.00416.68
8.0.110.0040.00416.88
8.0.100.0000.00816.79
8.0.90.0080.00016.63
8.0.80.0100.01316.88
8.0.70.0000.00716.68
8.0.60.0070.00016.70
8.0.50.0000.00716.85
8.0.30.0150.00717.04
8.0.20.0110.01117.40
8.0.10.0000.00716.82
8.0.00.0110.00816.70
7.4.330.0050.00015.08
7.4.320.0030.00316.44
7.4.300.0000.00716.42
7.4.290.0030.00316.58
7.4.280.0080.00016.49
7.4.270.0030.00316.60
7.4.260.0070.00016.41
7.4.250.0040.00416.57
7.4.240.0010.00616.63
7.4.230.0000.00716.48
7.4.220.0100.01416.52
7.4.210.0090.00616.64
7.4.200.0070.00016.70
7.4.160.0090.01216.42
7.4.150.0090.00917.40
7.4.140.0090.00917.86
7.4.130.0080.00916.43
7.4.120.0110.00616.53
7.4.110.0080.00816.43
7.4.100.0000.01816.64
7.4.90.0100.00716.55
7.4.80.0110.00619.39
7.4.70.0080.01516.43
7.4.60.0100.01316.70
7.4.50.0040.00416.30
7.4.40.0090.00916.66
7.4.30.0070.01616.29
7.4.00.0000.01014.93
7.3.330.0000.00513.32
7.3.320.0030.00313.14
7.3.310.0030.00316.33
7.3.300.0000.00616.27
7.3.290.0100.00716.25
7.3.280.0090.00616.28
7.3.270.0040.01317.40
7.3.260.0100.01316.60
7.3.250.0090.00816.30
7.3.240.0120.00816.36
7.3.230.0060.01616.54
7.3.210.0070.01116.32
7.3.200.0130.00416.43
7.3.190.0070.01416.40
7.3.180.0060.01116.34
7.3.170.0110.01116.44
7.3.160.0070.01016.58
7.2.330.0060.01216.77
7.2.320.0100.01016.81
7.2.310.0100.00716.59
7.2.300.0130.01016.71
7.2.290.0150.00316.77
7.2.60.0060.00916.66
7.2.00.0070.00719.34
7.1.200.0040.00715.70
7.1.100.0060.00618.22
7.1.70.0140.00017.14
7.1.60.0030.02020.03
7.1.50.0150.01116.98
7.1.00.0130.07022.45
7.0.200.0300.00014.40
7.0.60.0070.07719.90
7.0.50.0070.06717.86
7.0.40.0070.04720.18
7.0.30.0470.04020.07
7.0.20.0270.04020.30
7.0.10.0030.07320.34
7.0.00.0130.08020.08
5.6.280.0000.04721.10
5.6.210.0030.04020.65
5.6.200.0100.05318.25
5.6.190.0070.04720.48
5.6.180.3770.04020.39
5.6.170.0530.06020.51
5.6.160.0130.08320.61
5.6.150.0100.04318.21
5.6.140.0030.08718.14
5.6.130.0100.08318.18
5.6.120.0130.07721.01
5.6.110.0030.06021.02
5.6.100.0170.06020.97
5.6.90.0100.08720.97
5.6.80.0030.07720.50
5.6.70.4600.03020.38
5.5.350.0200.07020.33
5.5.340.0100.08018.05
5.5.330.0100.08320.40
5.5.320.3070.03720.34
5.5.310.0230.08020.51
5.5.300.0000.04017.95
5.5.290.0130.07718.08
5.5.280.0070.05320.98
5.5.270.0130.07320.73
5.5.260.0100.08020.76
5.5.250.0030.08720.68
5.5.240.0130.04020.13
5.4.450.0230.05019.55
5.4.440.0200.05319.31
5.4.430.0230.04719.62
5.4.420.0270.04319.45
5.4.410.0170.05319.40
5.4.400.0200.05319.38
5.4.390.0230.05018.84
5.4.380.0170.05719.30
5.4.370.0230.04719.23
5.4.360.0170.06319.11
5.4.350.0170.07319.24
5.4.340.0230.08019.11
5.4.320.0330.06719.28
5.4.310.0230.07019.28
5.4.300.0400.06019.24
5.4.290.0300.07319.37
5.4.280.0370.07019.28
5.4.270.0430.05719.14
5.4.260.0370.06319.24
5.4.250.0270.04719.27
5.4.240.0170.05719.00
5.4.230.0200.05319.10
5.4.220.0300.06019.27
5.4.210.0300.06719.14
5.4.200.0200.05318.86
5.4.190.0330.04019.25
5.4.180.0070.06019.26
5.4.170.0200.05319.26
5.4.160.0300.04319.26
5.4.150.0200.07019.34
5.4.140.0300.05016.29
5.4.130.0130.06316.39
5.4.120.0330.05316.27
5.4.110.0300.05316.57
5.4.100.0330.05016.52
5.4.90.0300.04716.46
5.4.80.0270.05716.24
5.4.70.0100.05716.19
5.4.60.0300.04716.43
5.4.50.0030.07016.37
5.4.40.0270.05316.25
5.4.30.0300.03316.32
5.4.20.0330.04316.16

preferences:
56.22 ms | 401 KiB | 5 Q