3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Regular { public $test = 'value'; } class Magic { private $values = ['test' => 'value']; public function __get($key) { if (isset($this->values[$key])) { return $this->values[$key]; } } public function __isset($key) { return isset($this->values[$key]); } } var_dump(empty($regular->test)); // outputs bool(false) var_dump(empty($magic->test)); // outputs bool(true)

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)
8.3.60.0150.00616.63
8.3.50.0150.00521.92
8.3.40.0110.00718.78
8.3.30.0000.01418.84
8.3.20.0030.00620.34
8.3.10.0040.00423.52
8.3.00.0080.00019.04
8.2.180.0060.01216.50
8.2.170.0070.01522.96
8.2.160.0100.00320.52
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0060.00326.16
8.2.120.0040.00420.86
8.2.110.0040.00420.96
8.2.100.0060.00617.78
8.2.90.0080.00017.78
8.2.80.0040.00418.09
8.2.70.0030.00517.25
8.2.60.0030.00617.50
8.2.50.0000.00817.38
8.2.40.0040.00417.80
8.2.30.0000.00718.06
8.2.20.0050.00217.65
8.2.10.0000.00717.93
8.2.00.0030.00617.45
8.1.280.0120.00925.92
8.1.270.0000.00923.97
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0000.00923.97
8.1.230.0080.00320.74
8.1.220.0000.00917.74
8.1.210.0030.00618.77
8.1.200.0080.00017.13
8.1.190.0000.00817.10
8.1.180.0000.00818.10
8.1.170.0080.00017.62
8.1.160.0040.00421.89
8.1.150.0040.00418.52
8.1.140.0040.00417.23
8.1.130.0000.00717.77
8.1.120.0000.00717.25
8.1.110.0030.00317.24
8.1.100.0000.00817.23
8.1.90.0040.00717.23
8.1.80.0040.00417.37
8.1.70.0040.00417.22
8.1.60.0040.00417.36
8.1.50.0000.00817.44
8.1.40.0050.00217.40
8.1.30.0000.00817.51
8.1.20.0050.00317.54
8.1.10.0040.00417.50
8.1.00.0000.00817.35
8.0.300.0000.00719.78
8.0.290.0060.00316.58
8.0.280.0070.00018.22
8.0.270.0000.00717.14
8.0.260.0040.00417.20
8.0.250.0000.00716.73
8.0.240.0040.00416.83
8.0.230.0040.00416.74
8.0.220.0030.00316.77
8.0.210.0040.00416.71
8.0.200.0000.00616.72
8.0.190.0040.00416.74
8.0.180.0040.00416.79
8.0.170.0000.00816.85
8.0.160.0030.00616.72
8.0.150.0040.00416.78
8.0.140.0080.00016.62
8.0.130.0070.00013.17
8.0.120.0030.00616.75
8.0.110.0050.00216.71
8.0.100.0040.00416.62
8.0.90.0000.00816.57
8.0.80.0040.01116.65
8.0.70.0070.00016.80
8.0.60.0050.00316.87
8.0.50.0040.00416.76
8.0.30.0130.00816.81
8.0.20.0120.00917.40
8.0.10.0000.00716.79
8.0.00.0110.00816.58
7.4.330.0050.00015.00
7.4.320.0030.00316.30
7.4.300.0060.00016.38
7.4.290.0030.00316.27
7.4.280.0050.00316.37
7.4.270.0030.00316.35
7.4.260.0030.00616.38
7.4.250.0040.00416.46
7.4.240.0050.00216.46
7.4.230.0000.00716.18
7.4.220.0070.01116.40
7.4.210.0090.00516.49
7.4.200.0000.00716.51
7.4.190.0070.00016.54
7.4.160.0030.01216.38
7.4.150.0140.01017.40
7.4.140.0100.01017.86
7.4.130.0070.01016.47
7.4.120.0120.00516.34
7.4.110.0150.00616.48
7.4.100.0090.00916.21
7.4.90.0070.01016.38
7.4.80.0130.00719.39
7.4.70.0100.01016.46
7.4.60.0090.01216.39
7.4.50.0000.00916.44
7.4.40.0050.01116.39
7.4.30.0130.00316.29
7.4.00.0000.01315.09
7.3.330.0060.00012.96
7.3.320.0020.00213.19
7.3.310.0000.00716.23
7.3.300.0070.00016.18
7.3.290.0060.00916.09
7.3.280.0060.01216.16
7.3.270.0130.00417.40
7.3.260.0060.01216.28
7.3.250.0090.00816.32
7.3.240.0120.00816.09
7.3.230.0200.00016.44
7.3.210.0110.01216.40
7.3.200.0170.00519.39
7.3.190.0030.01316.44
7.3.180.0060.01516.09
7.3.170.0060.00916.48
7.3.160.0120.00416.33
7.3.120.0060.01014.75
7.3.10.0000.01616.34
7.3.00.0130.00816.24
7.2.330.0050.01916.49
7.2.320.0070.01016.52
7.2.310.0100.00716.41
7.2.300.0120.00616.33
7.2.290.0080.00816.43
7.2.130.0120.00616.21
7.2.120.0190.00216.79
7.2.110.0060.01416.63
7.2.100.0180.01116.63
7.2.90.0040.01816.63
7.2.80.0120.00816.81
7.2.70.0230.00016.60
7.2.60.0000.01716.54
7.2.50.0160.01016.36
7.2.40.0100.01016.49
7.2.30.0070.00716.57
7.2.20.0050.01416.27
7.2.10.0000.01416.42
7.2.00.0070.00818.13
7.1.250.0070.01615.66
7.1.200.0070.00715.69
7.1.100.0060.00617.90
7.1.70.0060.00316.88
7.1.60.0140.01019.46
7.1.50.0090.01216.89
7.1.00.0070.07322.31
7.0.200.0040.00416.61
7.0.140.0000.07721.99
7.0.60.0170.07720.04
7.0.50.0100.06717.89
7.0.40.0070.05320.40
7.0.30.0500.03720.07
7.0.20.0330.05720.23
7.0.10.0200.05020.24
7.0.00.0200.07320.07
5.6.280.0030.07021.05
5.6.210.0000.04320.77
5.6.200.0100.04318.16
5.6.190.0070.05320.64
5.6.180.3630.03320.59
5.6.170.0230.05020.52
5.6.160.0030.09020.48
5.6.150.0030.05718.19
5.6.140.0100.03718.27
5.6.130.0100.07718.24
5.6.120.0170.06021.01
5.6.110.0030.05021.02
5.6.100.0100.03721.00
5.6.90.0130.04721.00
5.6.80.0100.07720.39
5.6.70.0270.07320.37
5.5.350.0200.07720.43
5.5.340.0100.07318.09
5.5.330.0070.05320.40
5.5.320.0470.07020.36
5.5.310.0300.07320.38
5.5.300.0100.07717.95
5.5.290.0070.06717.99
5.5.280.0100.08320.88
5.5.270.0100.03320.76
5.5.260.0100.05020.73
5.5.250.0070.05320.67
5.5.240.0130.05320.27
5.4.450.0300.05719.48
5.4.440.0930.05719.58
5.4.430.0930.04719.61
5.4.420.0630.00019.21
5.4.410.0230.04318.70
5.4.400.0130.06718.84
5.4.390.0270.06718.54
5.4.380.0230.05018.80
5.4.370.0070.04718.78
5.4.360.0070.04318.77
5.4.350.0090.03412.02
5.4.340.0070.03512.02
5.4.320.0130.03512.50
5.4.310.0050.04512.50
5.4.300.0100.03612.50
5.4.290.0080.04512.50
5.4.280.0090.04112.40
5.4.270.0100.04712.40
5.4.260.0090.04412.40
5.4.250.0090.04412.40
5.4.240.0080.04312.40
5.4.230.0070.04012.39
5.4.220.0050.04812.39
5.4.210.0070.04612.39
5.4.200.0100.04112.39
5.4.190.0050.04012.39
5.4.180.0050.04312.39
5.4.170.0080.03712.40
5.4.160.0060.04312.39
5.4.150.0090.04212.39
5.4.140.0070.03912.07
5.4.130.0050.03812.06
5.4.120.0070.03612.02
5.4.110.0060.03812.02
5.4.100.0050.04412.02
5.4.90.0080.03912.02
5.4.80.0100.03612.02
5.4.70.0090.03812.01
5.4.60.0040.04312.01
5.4.50.0130.02912.01
5.4.40.0070.03412.00
5.4.30.0110.03112.00
5.4.20.0060.03612.00
5.4.10.0070.03912.00
5.4.00.0060.03911.48
5.3.290.0120.04012.80
5.3.280.0050.04112.71
5.3.270.0070.04012.72
5.3.260.0110.03512.72
5.3.250.0080.03712.71
5.3.240.0050.04012.72
5.3.230.0090.03712.71
5.3.220.0070.03912.68
5.3.210.0100.03912.68
5.3.200.0060.04112.68
5.3.190.0080.03912.68
5.3.180.0070.04012.67
5.3.170.0080.03912.67
5.3.160.0090.04612.67
5.3.150.0060.05212.67
5.3.140.0080.04012.66
5.3.130.0070.04012.65
5.3.120.0050.04212.66
5.3.110.0070.04012.66
5.3.100.0090.03712.12
5.3.90.0100.03712.10
5.3.80.0100.04612.09
5.3.70.0150.04112.09
5.3.60.0160.03612.07
5.3.50.0130.03612.02
5.3.40.0120.04512.02
5.3.30.0130.04711.98
5.3.20.0150.04411.76
5.3.10.0150.04411.73
5.3.00.0170.05111.71
5.2.170.0070.0409.22
5.2.160.0130.0659.22
5.2.150.0060.0439.21
5.2.140.0080.0559.21
5.2.130.0040.0449.18
5.2.120.0070.0429.17
5.2.110.0040.0529.18
5.2.100.0050.0429.18
5.2.90.0050.0439.18
5.2.80.0050.0469.17
5.2.70.0060.0449.17
5.2.60.0090.0409.13
5.2.50.0060.0359.10
5.2.40.0050.0329.07
5.2.30.0060.0329.04
5.2.20.0060.0289.03
5.2.10.0060.0288.94
5.2.00.0060.0358.80
5.1.60.0040.0328.08
5.1.50.0050.0308.09
5.1.40.0080.0308.07
5.1.30.0090.0288.41
5.1.20.0060.0318.44
5.1.10.0070.0278.16
5.1.00.0060.0258.16
5.0.50.0030.0216.64
5.0.40.0040.0276.50
5.0.30.0060.0386.31
5.0.20.0060.0236.27
5.0.10.0030.0266.26
5.0.00.0040.0376.25
4.4.90.0070.0264.78
4.4.80.0040.0204.76
4.4.70.0050.0194.75
4.4.60.0060.0174.75
4.4.50.0030.0224.77
4.4.40.0030.0324.71
4.4.30.0050.0194.76
4.4.20.0060.0194.84
4.4.10.0020.0234.85
4.4.00.0050.0294.76
4.3.110.0020.0244.67
4.3.100.0030.0214.66
4.3.90.0050.0184.63
4.3.80.0050.0304.59
4.3.70.0050.0194.63
4.3.60.0050.0214.63
4.3.50.0020.0234.62
4.3.40.0050.0264.54
4.3.30.0030.0173.30
4.3.20.0040.0173.28
4.3.10.0030.0223.24
4.3.00.0070.0176.39

preferences:
42.69 ms | 401 KiB | 5 Q