3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A{ function foo() { if(isset($this)) { return true; } return false; } function bar() { return $this; } } class B{ function bb() { $a = new A(); echo __FUNCTION__;var_dump(A::bar()); echo __FUNCTION__;var_dump($a->bar()); } } $a = new A; var_dump(A::foo()); var_dump($a->foo()); $b = new B(); $b->bb();

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)
8.3.60.0200.00018.68
8.3.50.0110.00321.09
8.3.40.0040.01118.84
8.3.30.0070.00720.25
8.3.20.0070.00019.98
8.3.10.0080.00821.92
8.3.00.0080.00022.40
8.2.180.0130.00618.67
8.2.170.0070.00722.96
8.2.160.0040.01120.53
8.2.150.0030.00524.18
8.2.140.0040.01124.66
8.2.130.0070.01026.16
8.2.120.0040.00419.54
8.2.110.0100.00022.31
8.2.100.0060.00617.72
8.2.90.0040.00419.09
8.2.80.0000.00819.34
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0060.00618.07
8.2.40.0040.00418.22
8.2.30.0000.00718.09
8.2.20.0050.00217.74
8.2.10.0030.00617.63
8.2.00.0080.00017.71
8.1.280.0120.00925.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.77
8.1.230.0000.01119.21
8.1.220.0050.00317.74
8.1.210.0090.00018.77
8.1.200.0040.00417.22
8.1.190.0040.00417.41
8.1.180.0060.00320.24
8.1.170.0050.00318.52
8.1.160.0000.00822.16
8.1.150.0030.00618.59
8.1.140.0000.00717.41
8.1.130.0050.00317.76
8.1.120.0030.00317.43
8.1.110.0040.00417.32
8.1.100.0040.00417.40
8.1.90.0000.00717.41
8.1.80.0040.00417.29
8.1.70.0030.00317.43
8.1.60.0060.00317.56
8.1.50.0000.00817.43
8.1.40.0040.00417.42
8.1.30.0040.00417.54
8.1.20.0060.00317.55
8.1.10.0000.00817.61
8.1.00.0040.00417.60
8.0.300.0070.00018.77
8.0.290.0040.00417.05
8.0.280.0000.00818.34
8.0.270.0030.00317.12
8.0.260.0000.00816.75
8.0.250.0030.00316.98
8.0.240.0030.00516.97
8.0.230.0000.00716.86
8.0.220.0050.00316.85
8.0.210.0070.00016.87
8.0.200.0050.00216.95
8.0.190.0070.00016.99
8.0.180.0040.00416.89
8.0.170.0040.00416.85
8.0.160.0000.00716.79
8.0.150.0000.00716.84
8.0.140.0070.00016.89
8.0.130.0030.00313.40
8.0.120.0040.00416.88
8.0.110.0040.00416.82
8.0.100.0040.00416.74
8.0.90.0040.00416.97
8.0.80.0060.00916.88
8.0.70.0070.00016.86
8.0.60.0020.00516.74
8.0.50.0000.00816.90
8.0.30.0160.01017.13
8.0.20.0140.00617.40
8.0.10.0000.00716.88
8.0.00.0120.00816.82
7.4.330.0030.00315.00
7.4.320.0030.00316.39
7.4.300.0030.00316.65
7.4.290.0070.00016.45
7.4.280.0040.00416.59
7.4.270.0070.00016.54
7.4.260.0000.00716.57
7.4.250.0040.00416.60
7.4.240.0040.00416.56
7.4.230.0000.00716.70
7.4.220.0130.01316.44
7.4.210.0050.00916.53
7.4.200.0050.00216.50
7.4.190.0040.00416.70
7.4.160.0040.01216.26
7.4.150.0080.00817.40
7.4.140.0100.00717.86
7.4.130.0060.01116.53
7.4.120.0130.00516.53
7.4.110.0200.00316.52
7.4.100.0110.00816.51
7.4.90.0100.00716.44
7.4.80.0120.00619.39
7.4.70.0100.01316.43
7.4.60.0100.01416.61
7.4.50.0030.00616.29
7.4.40.0060.00922.77
7.4.30.0080.00816.70
7.4.00.0080.00814.91
7.3.330.0020.00213.21
7.3.320.0030.00313.37
7.3.310.0080.00016.39
7.3.300.0040.00416.38
7.3.290.0100.01016.42
7.3.280.0090.00716.35
7.3.270.0170.00717.40
7.3.260.0130.00616.58
7.3.250.0110.00816.43
7.3.240.0210.00016.31
7.3.230.0160.00616.39
7.3.210.0070.01016.35
7.3.200.0070.01119.39
7.3.190.0170.00016.36
7.3.180.0130.00316.41
7.3.170.0030.01616.53
7.3.160.0060.01216.32
7.3.120.0030.01314.75
7.2.330.0060.01216.23
7.2.320.0080.01716.72
7.2.310.0110.01116.31
7.2.300.0070.01016.31
7.2.290.0040.01716.41
7.2.60.0070.00716.98
7.2.00.0040.01119.03
7.1.200.0000.01215.61
7.1.100.0110.00417.96
7.1.70.0030.00717.29
7.1.60.0070.01419.29
7.1.50.0070.01717.04
7.1.00.0000.04322.33
7.0.200.0240.00714.54
7.0.140.0030.07022.09
7.0.70.0070.07321.78
7.0.60.0030.08721.78
7.0.50.0030.06322.09
7.0.40.0070.08720.05
7.0.30.0070.08320.11
7.0.20.0030.06020.08
7.0.10.0030.04020.07
7.0.00.0030.09020.11
5.6.280.0000.07721.08
5.6.220.0030.08720.55
5.6.210.0000.08020.77
5.6.200.0030.08721.09
5.6.190.0000.09020.96
5.6.180.0030.04321.11
5.6.170.0030.07721.09
5.6.160.0030.06021.03
5.6.150.0130.07321.04
5.6.140.0030.04020.94
5.6.130.0000.04721.12
5.6.120.0100.05321.02
5.6.110.0100.07721.11
5.6.100.0070.07721.07
5.6.90.0100.05021.09
5.6.80.0070.07720.44
5.6.70.0070.07720.43
5.6.60.0130.07020.55
5.6.50.0030.08720.41
5.6.40.0000.06320.47
5.6.30.0100.08020.37
5.6.20.0070.07020.38
5.6.10.0070.07320.46
5.6.00.0200.05720.43
5.5.360.0030.07320.49
5.5.350.0030.07720.48
5.5.340.0170.07320.88
5.5.330.0030.04720.88
5.5.320.0030.05320.93
5.5.310.0000.05720.77
5.5.300.0000.04320.82
5.5.290.0000.04320.77
5.5.280.0030.08020.86
5.5.270.0030.06720.82
5.5.260.0000.09020.79
5.5.250.0000.06320.61
5.5.240.0130.07320.25
5.5.230.0030.07720.13
5.5.220.0000.07020.26
5.5.210.0100.07720.30
5.5.200.0030.07720.15
5.5.190.0070.06020.07
5.5.180.0000.04720.23
5.5.160.0070.07020.12
5.5.150.0070.06720.23
5.5.140.0030.08020.18
5.5.130.0000.09320.18
5.5.120.0000.08720.25
5.5.110.0070.07020.26
5.5.100.0030.08320.16
5.5.90.0000.06719.98
5.5.80.0070.07320.15
5.5.70.0100.07020.09
5.5.60.0070.05720.06
5.5.50.0030.07020.09
5.5.40.0030.06020.03
5.5.30.0030.08320.05
5.5.20.0000.06720.06
5.5.10.0070.07719.98
5.5.00.0070.05320.08
5.4.450.0030.08319.45
5.4.440.0070.07719.41
5.4.430.0030.07019.36
5.4.420.0030.07719.53
5.4.410.0000.04019.04
5.4.400.0070.07318.91
5.4.390.0030.06319.13
5.4.380.0030.04719.04
5.4.370.0070.07319.00
5.4.360.0070.07718.95
5.4.350.0070.07019.18
5.4.340.0030.08019.05
5.4.320.0030.08018.88
5.4.310.0070.07319.12
5.4.300.0100.07019.04
5.4.290.0000.06719.14
5.4.280.0000.07719.16
5.4.270.0000.08319.13
5.4.260.0000.08319.02
5.4.250.0030.07718.86
5.4.240.0130.06719.13
5.4.230.0100.07019.08
5.4.220.0000.06318.84
5.4.210.0100.07019.10
5.4.200.0000.08019.09
5.4.190.0030.05719.11
5.4.180.0030.07319.08
5.4.170.0000.08019.15
5.4.160.0000.07319.02
5.4.150.0070.07019.15
5.4.140.0070.07316.49
5.4.130.0030.05716.38
5.4.120.0000.08016.38
5.4.110.0030.07716.52
5.4.100.0000.06316.44
5.4.90.0070.06316.52
5.4.80.0000.05016.55
5.4.70.0000.06316.54
5.4.60.0000.07316.41
5.4.50.0070.07016.41
5.4.40.0030.06716.53
5.4.30.0030.07016.45
5.4.20.0070.04716.33
5.4.10.0070.07316.28
5.4.00.0030.06715.90
5.3.290.0030.08014.72
5.3.280.0000.08014.55
5.3.270.0000.08014.59
5.3.260.0030.07714.64
5.3.250.0100.04714.69
5.3.240.0000.07714.67
5.3.230.0030.06714.54
5.3.220.0000.08014.49
5.3.210.0030.06314.60
5.3.200.0030.07714.68
5.3.190.0030.08014.64
5.3.180.0030.05014.63
5.3.170.0030.05314.63
5.3.160.0030.05314.56
5.3.150.0030.05014.49
5.3.140.0070.07014.52
5.3.130.0070.06714.61
5.3.120.0000.06314.66
5.3.110.0070.06714.64
5.3.100.0030.07013.98
5.3.90.0030.06314.03
5.3.80.0030.05714.08
5.3.70.0030.07714.08
5.3.60.0100.07013.93
5.3.50.0000.06314.06
5.3.40.0030.07313.86
5.3.30.0000.07313.89
5.3.20.0070.07013.59
5.3.10.0000.06313.78
5.3.00.0070.07313.70
5.2.170.0030.06312.30
5.2.160.0030.06312.30
5.2.150.0000.06712.30
5.2.140.0100.04012.30
5.2.130.0030.04012.30
5.2.120.0030.06312.30
5.2.110.0070.06012.30
5.2.100.0000.06012.30
5.2.90.0030.05712.30
5.2.80.0030.06312.30
5.2.70.0000.05712.30
5.2.60.0030.06712.30
5.2.50.0070.05712.30
5.2.40.0070.06012.30
5.2.30.0070.05312.30
5.2.20.0030.04712.30
5.2.10.0030.05712.30
5.2.00.0070.05712.30
5.1.60.0030.05012.30
5.1.50.0070.05312.30
5.1.40.0030.05312.30
5.1.30.0070.05312.30
5.1.20.0000.06012.30
5.1.10.0000.05312.30
5.1.00.0030.05312.30
5.0.50.0070.04012.30
5.0.40.0100.03712.30
5.0.30.0000.06312.30
5.0.20.0000.04012.30
5.0.10.0000.03712.30
5.0.00.0000.06712.30
4.4.90.0000.03312.30
4.4.80.0030.03012.30
4.4.70.0000.03712.30
4.4.60.0030.03012.30
4.4.50.0030.03312.30
4.4.40.0000.05712.30
4.4.30.0030.03712.30
4.4.20.0000.03012.30
4.4.10.0000.02712.30
4.4.00.0000.05312.30
4.3.110.0070.03312.30
4.3.100.0000.03012.30
4.3.90.0000.02712.30
4.3.80.0000.05312.30
4.3.70.0000.03712.30
4.3.60.0000.04012.30
4.3.50.0000.03712.30
4.3.40.0000.05312.30
4.3.30.0000.03712.30
4.3.20.0000.03712.30
4.3.10.0000.03712.30
4.3.00.0000.03312.30

preferences:
38.49 ms | 401 KiB | 5 Q