3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $avar; public function __isset($varname) { var_dump('__isset called'); return true; } } class B extends A { public function hasAVar(){ return property_exists($this, 'avar'); } public function hasBVar(){ return property_exists($this, 'bvar'); } } $b = new B(); var_dump($b->hasAVar()); var_dump($b->hasBVar());

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)
8.3.60.0140.00718.43
8.3.50.0150.00522.71
8.3.40.0110.00318.42
8.3.30.0110.00418.89
8.3.20.0050.00320.34
8.3.10.0040.00423.52
8.3.00.0000.00819.26
8.2.180.0180.00016.38
8.2.170.0120.00322.96
8.2.160.0100.00319.20
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0070.00021.18
8.2.110.0090.00020.87
8.2.100.0090.00317.78
8.2.90.0080.00019.82
8.2.80.0070.00420.54
8.2.70.0080.00017.91
8.2.60.0060.00318.04
8.2.50.0000.00819.23
8.2.40.0030.00519.17
8.2.30.0070.00017.99
8.2.20.0030.00617.54
8.2.10.0040.00418.05
8.2.00.0050.00217.49
8.1.280.0180.00025.92
8.1.270.0030.00623.79
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00022.25
8.1.230.0060.00621.03
8.1.220.0040.00417.74
8.1.210.0050.00318.82
8.1.200.0040.00417.36
8.1.190.0060.00317.23
8.1.180.0050.00518.10
8.1.170.0030.00618.48
8.1.160.0070.00021.94
8.1.150.0040.00418.87
8.1.140.0040.00417.40
8.1.130.0030.00317.87
8.1.120.0000.00717.40
8.1.110.0040.00417.26
8.1.100.0050.00217.28
8.1.90.0000.01017.46
8.1.80.0060.00317.28
8.1.70.0030.00317.32
8.1.60.0040.00417.49
8.1.50.0000.00817.47
8.1.40.0030.00617.52
8.1.30.0000.00817.66
8.1.20.0080.00017.52
8.1.10.0080.00017.46
8.1.00.0040.00417.44
8.0.300.0000.00720.16
8.0.290.0030.00516.63
8.0.280.0070.00018.25
8.0.270.0000.00717.24
8.0.260.0080.00017.10
8.0.250.0030.00316.87
8.0.240.0030.00616.79
8.0.230.0000.00816.91
8.0.220.0030.00316.79
8.0.210.0000.00816.81
8.0.200.0060.00016.93
8.0.190.0080.00016.91
8.0.180.0000.00816.84
8.0.170.0040.00416.84
8.0.160.0070.00016.83
8.0.150.0030.00316.77
8.0.140.0000.01016.76
8.0.130.0030.00313.32
8.0.120.0000.00816.69
8.0.110.0080.00016.71
8.0.100.0050.00216.89
8.0.90.0040.00416.66
8.0.80.0090.01216.84
8.0.70.0030.00516.80
8.0.60.0000.00716.73
8.0.50.0030.00516.79
8.0.30.0140.00716.99
8.0.20.0110.00817.40
8.0.10.0000.00717.01
8.0.00.0080.01016.79
7.4.330.0030.00315.00
7.4.320.0030.00316.52
7.4.300.0080.00016.41
7.4.290.0040.00416.41
7.4.280.0100.00016.59
7.4.270.0030.00316.51
7.4.260.0060.00616.61
7.4.250.0040.00416.49
7.4.240.0030.00416.43
7.4.230.0000.00816.63
7.4.220.0000.01816.53
7.4.210.0000.01316.40
7.4.200.0030.00416.30
7.4.160.0090.00616.27
7.4.150.0110.00717.40
7.4.140.0030.01317.86
7.4.130.0100.01016.37
7.4.120.0100.00716.57
7.4.110.0070.01416.66
7.4.100.0090.00916.43
7.4.90.0140.00416.34
7.4.80.0100.00719.39
7.4.70.0170.00416.44
7.4.60.0100.01016.56
7.4.50.0000.00516.43
7.4.40.0070.01016.49
7.4.30.0030.01316.39
7.4.00.0030.01215.02
7.3.330.0030.00313.10
7.3.320.0000.00613.11
7.3.310.0000.00716.28
7.3.300.0070.00016.11
7.3.290.0100.00516.37
7.3.280.0110.00816.26
7.3.270.0140.00417.40
7.3.260.0340.03116.53
7.3.250.0060.01316.18
7.3.240.0070.01116.23
7.3.230.0090.00916.39
7.3.210.0170.00016.20
7.3.200.0080.01219.39
7.3.190.0150.00316.41
7.3.180.0090.00616.57
7.3.170.0090.00616.46
7.3.160.0040.01216.25
7.2.330.0030.01316.29
7.2.320.0130.01016.38
7.2.310.0100.00716.76
7.2.300.0060.01216.63
7.2.290.0100.00716.49
7.2.00.0100.01019.01
7.1.200.0160.00315.71
7.1.100.0060.00617.87
7.1.70.0030.01217.16
7.1.60.0150.00619.40
7.1.50.0040.02116.96
7.1.00.0030.07722.45
7.0.200.0610.00714.64
7.0.140.0030.07321.99
7.0.110.0130.07019.94
7.0.100.0000.05319.94
7.0.90.0100.08019.89
7.0.80.0130.07019.93
7.0.70.0170.06320.07
7.0.60.0030.07719.89
7.0.50.0030.08020.35
7.0.40.0100.07720.06
7.0.30.0000.08720.16
7.0.20.0000.06720.16
7.0.10.0100.06320.27
7.0.00.0070.05320.23
5.6.280.0000.07320.83
5.6.260.0030.07020.64
5.6.250.0030.08320.69
5.6.240.0100.07720.87
5.6.230.0070.05020.70
5.6.220.0070.05720.54
5.6.210.0130.07720.57
5.6.200.0070.05021.16
5.6.190.0030.07021.25
5.6.180.0070.07720.91
5.6.170.0030.05720.97
5.6.160.0030.08321.15
5.6.150.0100.07721.30
5.6.140.0130.06721.20
5.6.130.0170.07020.99
5.6.120.0130.07721.04
5.6.110.0100.07321.02
5.6.100.0100.07721.18
5.6.90.0100.07720.90
5.6.80.0070.07320.46
5.6.70.0030.07020.40
5.6.60.0130.03020.43
5.6.50.0070.08020.32
5.6.40.0100.07720.43
5.6.30.0070.08320.41
5.6.20.0200.06020.30
5.6.10.0070.08020.59
5.6.00.0130.07720.38
5.5.380.0100.07020.47
5.5.370.0070.06020.30
5.5.360.0070.08320.56
5.5.350.0030.07720.48
5.5.340.0100.06721.01
5.5.330.0130.07320.90
5.5.320.0130.07321.00
5.5.310.0170.06720.95
5.5.300.0070.08020.91
5.5.290.0070.05021.05
5.5.280.0030.08720.79
5.5.270.0100.08320.84
5.5.260.0100.07020.88
5.5.250.0100.08020.60
5.5.240.0030.07720.30
5.5.230.0030.07720.33
5.5.220.0030.07320.20
5.5.210.0100.07320.16
5.5.200.0130.07320.32
5.5.190.0070.07320.34
5.5.180.0030.08320.26
5.5.160.0100.07320.31
5.5.150.0070.08020.32
5.5.140.0170.06320.20
5.5.130.0100.07320.22
5.5.120.0030.08020.25
5.5.110.0070.03720.25
5.5.100.0030.04020.18
5.5.90.0070.04720.17
5.5.80.0070.06020.03
5.5.70.0070.04720.27
5.5.60.0030.06720.19
5.5.50.0100.08020.10
5.5.40.0170.04719.97
5.5.30.0070.04020.24
5.5.20.0030.08020.09
5.5.10.0070.08020.04
5.5.00.0130.07020.04
5.4.450.0070.07319.38
5.4.440.0070.08319.68
5.4.430.0030.07019.48
5.4.420.0070.06319.65
5.4.410.0030.06019.43
5.4.400.0000.08019.20
5.4.390.0130.08019.19
5.4.380.0070.05718.99
5.4.370.0130.06718.98
5.4.360.0000.08318.98
5.4.350.0100.07319.02
5.4.340.0030.08019.00
5.4.320.0070.07318.98
5.4.310.0000.08019.33
5.4.300.0100.07018.95
5.4.290.0000.04019.01
5.4.280.0100.06719.14
5.4.270.0000.07719.02
5.4.260.0070.07719.18
5.4.250.0070.07319.00
5.4.240.0070.07319.14
5.4.230.0100.07019.00
5.4.220.0030.07319.31
5.4.210.0130.04019.33
5.4.200.0100.06718.99
5.4.190.0100.05019.25
5.4.180.0030.07019.10
5.4.170.0100.07319.22
5.4.160.0130.05718.96
5.4.150.0070.07318.99
5.4.140.0070.04716.58
5.4.130.0070.04316.47
5.4.120.0030.07316.34
5.4.110.0100.07016.48
5.4.100.0170.05716.46
5.4.90.0100.06016.68
5.4.80.0000.06316.61
5.4.70.0100.07316.29
5.4.60.0000.07716.34
5.4.50.0070.07016.52
5.4.40.0030.07316.34
5.4.30.0130.06716.48
5.4.20.0070.07016.51
5.4.10.0130.06316.62
5.4.00.0100.07016.04
5.3.290.0070.08014.71
5.3.280.0070.07714.73
5.3.270.0070.06714.63
5.3.260.0000.05314.60
5.3.250.0070.07714.62
5.3.240.0100.07314.73
5.3.230.0100.07014.46
5.3.220.0030.07714.58
5.3.210.0000.07714.59
5.3.200.0100.06314.54
5.3.190.0170.02314.45
5.3.180.0100.06714.65
5.3.170.0070.03714.56
5.3.160.0100.06714.52
5.3.150.0000.07714.57
5.3.140.0030.08014.59
5.3.130.0070.08314.55
5.3.120.0030.07714.57
5.3.110.0000.08014.55
5.3.100.0100.07314.17
5.3.90.0070.06314.02
5.3.80.0070.03013.98
5.3.70.0030.06714.04
5.3.60.0130.06314.02
5.3.50.0130.05714.10
5.3.40.0170.06313.96
5.3.30.0130.05713.98
5.3.20.0100.06713.69
5.3.10.0200.05713.66
5.3.00.0070.07013.63
5.2.170.0070.06313.25
5.2.160.0030.06313.25
5.2.150.0030.04013.25
5.2.140.0070.06313.25
5.2.130.0030.06013.25
5.2.120.0030.06313.25
5.2.110.0100.05313.25
5.2.100.0030.06013.25
5.2.90.0000.07013.25
5.2.80.0070.03313.25
5.2.70.0070.06313.25
5.2.60.0100.05713.25
5.2.50.0070.06013.25
5.2.40.0000.06713.25
5.2.30.0070.06013.25
5.2.20.0070.03313.25
5.2.10.0100.04313.25
5.2.00.0000.06313.25
5.1.60.0030.05313.25
5.1.50.0030.05313.25
5.1.40.0030.05713.25
5.1.30.0030.03313.25
5.1.20.0070.03313.25
5.1.10.0070.02313.25
5.1.00.0000.02713.25
5.0.50.0000.02013.25
5.0.40.0000.02313.25
5.0.30.0070.04313.25
5.0.20.0070.01713.25
5.0.10.0000.02013.25
5.0.00.0030.03013.25
4.4.90.0000.03713.25
4.4.80.0000.02013.25
4.4.70.0030.03713.25
4.4.60.0030.03313.25
4.4.50.0030.03713.25
4.4.40.0000.03013.25
4.4.30.0030.03313.25
4.4.20.0000.01713.25
4.4.10.0000.01713.25
4.4.00.0100.02713.25
4.3.110.0000.02013.25
4.3.100.0030.01313.25
4.3.90.0030.01313.25
4.3.80.0000.02313.25
4.3.70.0000.01713.25
4.3.60.0000.01713.25
4.3.50.0000.02013.25
4.3.40.0000.02713.25
4.3.30.0000.01713.25
4.3.20.0070.01013.25
4.3.10.0000.01713.25
4.3.00.0030.01713.25

preferences:
47.04 ms | 401 KiB | 5 Q