3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public function method() { unset($this); var_dump(isset($this)); eval('var_dump(isset($this))'); } } $foo = new foo; $foo ->method();

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)
8.3.60.0120.00918.55
8.3.50.0100.00821.08
8.3.40.0070.00718.45
8.3.30.0100.00320.19
8.3.20.0080.00018.33
8.3.10.0000.00720.79
8.3.00.0040.00423.53
8.2.180.0070.01116.38
8.2.170.0140.00022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00719.64
8.2.110.0070.00321.03
8.2.100.0090.00317.46
8.2.90.0080.00018.95
8.2.80.0050.00517.97
8.2.70.0040.00417.50
8.2.60.0060.00317.78
8.2.50.0040.00418.10
8.2.40.0050.00319.95
8.2.30.0070.00019.42
8.2.20.0040.00417.57
8.2.10.0040.00417.63
8.2.00.0030.00617.41
8.1.280.0100.00325.92
8.1.270.0040.00423.99
8.1.260.0050.00226.35
8.1.250.0060.00328.09
8.1.240.0040.01120.78
8.1.230.0040.00717.77
8.1.220.0050.00317.74
8.1.210.0080.00418.77
8.1.200.0000.00917.22
8.1.190.0090.00017.00
8.1.180.0000.00718.10
8.1.170.0050.00218.50
8.1.160.0040.00418.65
8.1.150.0040.00418.54
8.1.140.0030.00517.32
8.1.130.0090.00017.74
8.1.120.0040.00417.30
8.1.110.0040.00417.32
8.1.100.0030.00517.38
8.1.90.0000.00717.30
8.1.80.0070.00017.30
8.1.70.0070.00017.33
8.1.60.0030.00617.44
8.1.50.0040.00417.36
8.1.40.0040.00417.23
8.1.30.0040.00417.43
8.1.20.0040.00417.45
8.1.10.0040.00417.28
8.1.00.0040.00417.16
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0000.00718.32
8.0.270.0040.00417.16
8.0.260.0040.00416.62
8.0.250.0050.00216.86
8.0.240.0000.00716.87
8.0.230.0030.00316.78
8.0.220.0060.00016.82
8.0.210.0070.00016.70
8.0.200.0000.00816.74
8.0.190.0070.00016.90
8.0.180.0030.00316.74
8.0.170.0050.00216.78
8.0.160.0030.00316.82
8.0.150.0070.00016.81
8.0.140.0050.00316.84
8.0.130.0000.00513.20
8.0.120.0050.00316.66
8.0.110.0040.00416.70
8.0.100.0000.00716.91
8.0.90.0000.00716.82
8.0.80.0090.00616.81
8.0.70.0040.00416.71
8.0.60.0000.00816.80
8.0.50.0030.00316.84
8.0.30.0120.00616.92
8.0.20.0030.01517.40
8.0.10.0080.00016.81
8.0.00.0090.00816.76
7.4.330.0070.00014.89
7.4.320.0060.00016.34
7.4.300.0030.00316.41
7.4.290.0070.00016.39
7.4.280.0000.00616.35
7.4.270.0030.00316.32
7.4.260.0040.00413.11
7.4.250.0000.00816.33
7.4.240.0040.00416.27
7.4.230.0070.00016.20
7.4.220.0120.00616.35
7.4.210.0100.00516.45
7.4.200.0030.00316.34
7.4.190.0030.00316.17
7.4.160.0100.00716.51
7.4.150.0040.01417.40
7.4.140.0030.01417.86
7.4.130.0100.00816.32
7.4.120.0080.01016.30
7.4.110.0090.00916.42
7.4.100.0090.00916.29
7.4.90.0110.00716.16
7.4.80.0060.01019.39
7.4.70.0080.01216.40
7.4.60.0030.01216.36
7.4.50.0030.00516.39
7.4.40.0030.00722.77
7.4.30.0130.00316.32
7.4.00.0000.01215.00
7.3.330.0060.00013.06
7.3.320.0000.00513.04
7.3.310.0070.00016.33
7.3.300.0000.00716.10
7.3.290.0060.00616.21
7.3.280.0100.00516.21
7.3.270.0130.00317.40
7.3.260.0070.01118.24
7.3.250.0120.00716.38
7.3.240.0080.00816.50
7.3.230.0070.01116.39
7.3.210.0120.00616.24
7.3.200.0080.01319.39
7.3.190.0100.01216.36
7.3.180.0030.01416.25
7.3.170.0140.00716.27
7.3.160.0080.00816.25
7.3.120.0110.00314.83
7.2.330.0120.00916.43
7.2.320.0000.01716.22
7.2.310.0190.00316.20
7.2.300.0100.00616.13
7.2.290.0060.00916.25
7.2.60.0000.01216.79
7.2.00.0030.00919.47
7.1.200.0040.01115.48
7.1.100.0060.00618.15
7.1.70.0030.01016.93
7.1.60.0130.01019.17
7.1.50.0040.01916.75
7.1.00.0030.03322.48
7.0.200.0110.00416.63
7.0.140.0030.07322.09
7.0.70.0100.07721.71
7.0.60.0070.08321.75
7.0.50.0100.06022.11
7.0.40.0130.08020.09
7.0.30.0030.08720.05
7.0.20.0030.04320.18
7.0.10.0000.09020.07
7.0.00.0100.06720.04
5.6.280.0000.07721.12
5.6.220.0070.08320.62
5.6.210.0070.08020.47
5.6.200.0070.08021.08
5.6.190.0030.08721.18
5.6.180.0070.05320.94
5.6.170.0070.06321.05
5.6.160.0000.08321.09
5.6.150.0030.08721.04
5.6.140.0030.07321.02
5.6.130.0000.06720.93
5.6.120.0100.08021.01
5.6.110.0070.08721.10
5.6.100.0100.06720.93
5.6.90.0030.08320.93
5.6.80.0030.08720.49
5.6.70.0000.08720.46
5.6.60.0030.08020.32
5.6.50.0130.07020.34
5.6.40.0030.07720.38
5.6.30.0000.05020.44
5.6.20.0000.08320.37
5.6.10.0070.07720.34
5.6.00.0200.06720.40
5.5.360.0070.08320.41
5.5.350.0070.08320.43
5.5.340.0070.08020.64
5.5.330.0030.07320.87
5.5.320.0030.08320.90
5.5.310.0070.08020.85
5.5.300.0070.07020.82
5.5.290.0030.08720.86
5.5.280.0070.08320.79
5.5.270.0100.05020.89
5.5.260.0000.06720.88
5.5.250.0100.04720.73
5.5.240.0030.05720.26
5.5.230.0030.05720.25
5.5.220.0100.07320.14
5.5.210.0030.08020.18
5.5.200.0030.08320.25
5.5.190.0000.07320.27
5.5.180.0030.07020.21
5.5.160.0070.07720.19
5.5.150.0070.08020.21
5.5.140.0070.07320.13
5.5.130.0070.07020.23
5.5.120.0070.04020.23
5.5.110.0070.08020.07
5.5.100.0030.08320.16
5.5.90.0000.08720.01
5.5.80.0070.07720.09
5.5.70.0000.08320.09
5.5.60.0100.07720.14
5.5.50.0070.06320.10
5.5.40.0070.07320.05
5.5.30.0130.06719.99
5.5.20.0100.06720.05
5.5.10.0070.04720.04
5.5.00.0030.08320.11
5.4.450.0070.08319.38
5.4.440.0070.05719.55
5.4.430.0030.06019.36
5.4.420.0100.06019.36
5.4.410.0070.07019.05
5.4.400.0000.07019.24
5.4.390.0000.07719.04
5.4.380.0030.06719.03
5.4.370.0030.07019.12
5.4.360.0070.05719.23
5.4.350.0000.08018.95
5.4.340.0030.08019.03
5.4.320.0030.08018.89
5.4.310.0070.07719.12
5.4.300.0000.07019.12
5.4.290.0030.07719.13
5.4.280.0070.06318.90
5.4.270.0030.08019.16
5.4.260.0070.08019.03
5.4.250.0030.08019.12
5.4.240.0030.08019.13
5.4.230.0030.08319.02
5.4.220.0000.06319.04
5.4.210.0070.07319.20
5.4.200.0070.07319.11
5.4.190.0000.08019.08
5.4.180.0030.04719.12
5.4.170.0100.07019.02
5.4.160.0030.08019.11
5.4.150.0070.06719.03
5.4.140.0100.07016.45
5.4.130.0000.08016.18
5.4.120.0070.06016.45
5.4.110.0100.07016.32
5.4.100.0030.07716.36
5.4.90.0030.07316.50
5.4.80.0030.07716.43
5.4.70.0030.08016.34
5.4.60.0000.06316.34
5.4.50.0030.07716.33
5.4.40.0000.05316.42
5.4.30.0000.04016.31
5.4.20.0070.07316.46
5.4.10.0030.06016.46
5.4.00.0070.05315.72
5.3.290.0100.07014.64
5.3.280.0030.07014.69
5.3.270.0070.07014.74
5.3.260.0070.08014.59
5.3.250.0030.05714.59
5.3.240.0030.07314.59
5.3.230.0070.07314.72
5.3.220.0170.05014.69
5.3.210.0000.05314.57
5.3.200.0000.08014.57
5.3.190.0070.07714.66
5.3.180.0030.06714.50
5.3.170.0030.08014.54
5.3.160.0100.07314.68
5.3.150.0030.07714.56
5.3.140.0000.07014.48
5.3.130.0070.03314.48
5.3.120.0000.04014.53
5.3.110.0030.06314.54
5.3.100.0070.07314.02
5.3.90.0000.05014.11
5.3.80.0070.03314.16
5.3.70.0070.07014.14
5.3.60.0000.06013.98
5.3.50.0000.07713.88
5.3.40.0000.08013.98
5.3.30.0070.07313.93
5.3.20.0000.07713.71
5.3.10.0030.07013.64
5.3.00.0030.07713.66
5.2.170.0030.06713.44
5.2.160.0000.06313.44
5.2.150.0030.06313.44
5.2.140.0070.06013.44
5.2.130.0000.06713.44
5.2.120.0030.06013.44
5.2.110.0030.06313.44
5.2.100.0030.06313.44
5.2.90.0000.06013.44
5.2.80.0030.06013.44
5.2.70.0000.06713.44
5.2.60.0000.05713.44
5.2.50.0000.04013.44
5.2.40.0000.06313.44
5.2.30.0000.05013.44
5.2.20.0070.06013.44
5.2.10.0070.05713.44
5.2.00.0130.05013.44
5.1.60.0000.04013.44
5.1.50.0030.05313.44
5.1.40.0070.05013.44
5.1.30.0030.05713.44
5.1.20.0000.05713.44
5.1.10.0070.05313.44
5.1.00.0000.05713.44
5.0.50.0030.03313.44
5.0.40.0000.04013.44
5.0.30.0030.06313.44
5.0.20.0000.04713.44
5.0.10.0000.03313.44
5.0.00.0000.06713.44
4.4.90.0000.04013.44
4.4.80.0030.03713.44
4.4.70.0000.04013.44
4.4.60.0070.02713.44
4.4.50.0030.02713.44
4.4.40.0000.03713.44
4.4.30.0000.03313.44
4.4.20.0030.03713.44
4.4.10.0000.03313.44
4.4.00.0000.05713.44
4.3.110.0070.03313.44
4.3.100.0000.02713.44
4.3.90.0000.03713.44
4.3.80.0030.05313.44
4.3.70.0030.03013.44
4.3.60.0030.02313.44
4.3.50.0000.03713.44
4.3.40.0000.05313.44
4.3.30.0000.03313.44
4.3.20.0030.03313.44
4.3.10.0100.02013.44
4.3.00.0000.02713.44

preferences:
45.63 ms | 401 KiB | 5 Q