3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Data { public $foo = 'bar'; public function wtf() { unset($this->foo); } } $d = new Data; var_dump('foo exists', isset($d['foo'])); $d->wtf(); var_dump('foo exists', isset($d['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)
8.3.60.0150.00016.63
8.3.50.0120.00722.01
8.3.40.0110.00418.84
8.3.30.0070.01319.07
8.3.20.0070.00020.34
8.3.10.0080.00023.48
8.3.00.0080.00019.20
8.2.180.0120.00618.31
8.2.170.0150.00022.96
8.2.160.0140.00420.44
8.2.150.0000.00824.18
8.2.140.0000.01024.66
8.2.130.0050.00526.16
8.2.120.0100.00320.73
8.2.110.0040.00422.08
8.2.100.0090.00317.91
8.2.90.0000.00818.95
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0000.00717.93
8.2.50.0050.00318.07
8.2.40.0050.00218.22
8.2.30.0050.00518.25
8.2.20.0050.00317.77
8.2.10.0040.00418.11
8.2.00.0040.00417.73
8.1.280.0160.00025.92
8.1.270.0040.00421.97
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0000.00922.18
8.1.230.0110.00019.07
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0060.00317.35
8.1.190.0000.00817.10
8.1.180.0000.00818.10
8.1.170.0050.00318.57
8.1.160.0070.00021.95
8.1.150.0050.00218.59
8.1.140.0000.00717.35
8.1.130.0030.00517.50
8.1.120.0030.00317.27
8.1.110.0000.00817.40
8.1.100.0070.00017.43
8.1.90.0030.00717.36
8.1.80.0040.00417.42
8.1.70.0030.00317.32
8.1.60.0040.00417.44
8.1.50.0060.00317.46
8.1.40.0040.00417.54
8.1.30.0040.00417.59
8.1.20.0030.00617.58
8.1.10.0030.00617.54
8.1.00.0060.00617.47
8.0.300.0070.00018.77
8.0.290.0070.00017.05
8.0.280.0030.00318.43
8.0.270.0030.00317.15
8.0.260.0060.00016.73
8.0.250.0070.00016.99
8.0.240.0040.00416.85
8.0.230.0000.00716.85
8.0.220.0030.00316.79
8.0.210.0000.00816.84
8.0.200.0000.00617.00
8.0.190.0060.00316.91
8.0.180.0000.00716.95
8.0.170.0040.00416.91
8.0.160.0000.00716.88
8.0.150.0030.00316.81
8.0.140.0000.00716.83
8.0.130.0030.00313.25
8.0.120.0000.00816.79
8.0.110.0030.00516.86
8.0.100.0070.00017.00
8.0.90.0000.00717.01
8.0.80.0110.00416.89
8.0.70.0040.00416.80
8.0.60.0080.00016.94
8.0.50.0030.00516.73
8.0.30.0100.01317.02
8.0.20.0100.01017.40
8.0.10.0050.00217.09
8.0.00.0140.00516.60
7.4.330.0050.00015.00
7.4.320.0030.00316.55
7.4.300.0040.00416.61
7.4.290.0000.00616.58
7.4.280.0060.00516.56
7.4.270.0030.00316.64
7.4.260.0030.00316.61
7.4.250.0050.00316.55
7.4.240.0040.00316.49
7.4.230.0000.00716.44
7.4.220.0100.01316.55
7.4.210.0060.00916.59
7.4.200.0000.00716.30
7.4.190.0000.00716.55
7.4.160.0050.01016.34
7.4.150.0190.00317.40
7.4.140.0070.01017.86
7.4.130.0110.00616.38
7.4.120.0090.00916.62
7.4.110.0040.01416.57
7.4.100.0080.00816.42
7.4.90.0070.01016.30
7.4.80.0150.00619.39
7.4.70.0100.00716.50
7.4.60.0090.01216.57
7.4.50.0020.00216.39
7.4.40.0130.00316.33
7.4.30.0070.01016.37
7.4.00.0050.01314.90
7.3.330.0050.00013.40
7.3.320.0030.00313.37
7.3.310.0040.00416.34
7.3.300.0000.00716.20
7.3.290.0030.01116.36
7.3.280.0090.00716.40
7.3.270.0090.00917.40
7.3.260.0070.01016.44
7.3.250.0090.00816.34
7.3.240.0120.00616.33
7.3.230.0100.01416.61
7.3.210.0170.00316.34
7.3.200.0110.01119.39
7.3.190.0120.01016.59
7.3.180.0080.00816.36
7.3.170.0080.00816.31
7.3.160.0100.01016.29
7.3.120.0060.01014.79
7.3.110.0110.00714.54
7.3.100.0120.00314.69
7.3.90.0000.00914.73
7.3.80.0080.00314.81
7.3.70.0060.00914.73
7.3.60.0040.01114.80
7.3.50.0070.00714.87
7.3.40.0070.01014.88
7.3.30.0060.00914.37
7.3.20.0000.01116.46
7.3.10.0080.00416.77
7.3.00.0070.01016.52
7.2.330.0160.00716.61
7.2.320.0170.00716.24
7.2.310.0160.01016.58
7.2.300.0040.01216.77
7.2.290.0110.00816.67
7.2.250.0100.00714.83
7.2.240.0100.01014.89
7.2.230.0090.00614.94
7.2.220.0060.00314.54
7.2.210.0100.00314.78
7.2.200.0110.00414.92
7.2.190.0030.00814.89
7.2.180.0000.01314.84
7.2.170.0040.00715.00
7.2.60.0040.01116.62
7.2.00.0000.01119.23
7.1.330.0100.00715.50
7.1.320.0090.00915.59
7.1.310.0150.00015.75
7.1.300.0070.00715.68
7.1.290.0090.00615.51
7.1.280.0040.01115.68
7.1.270.0040.00815.34
7.1.260.0040.01115.69
7.1.200.0030.01015.61
7.1.100.0000.00917.63
7.1.70.0040.00417.09
7.1.60.0060.01319.70
7.1.50.0190.01116.92
7.1.00.0030.07722.48
7.0.200.0030.00316.79
7.0.140.0030.07321.92
7.0.60.0100.05719.89
7.0.50.0070.07717.94
7.0.40.0130.04720.14
7.0.30.0230.04720.25
7.0.20.0200.04320.23
7.0.10.0030.04320.10
7.0.00.0100.08020.13
5.6.280.0000.07720.82
5.6.210.0170.06720.57
5.6.200.0100.08318.29
5.6.190.0070.07020.45
5.6.180.4270.04020.77
5.6.170.0230.04020.71
5.6.160.0100.07320.49
5.6.150.0070.08018.14
5.6.140.0030.07718.14
5.6.130.0000.05318.19
5.6.120.0070.04321.00
5.6.110.0000.04720.97
5.6.100.0070.05320.98
5.6.90.0030.06720.88
5.6.80.0070.07020.38
5.6.70.3970.04020.37
5.5.350.0100.07020.45
5.5.340.0000.05018.09
5.5.330.0100.08020.21
5.5.320.0270.05320.52
5.5.310.0300.05720.19
5.5.300.0000.07017.92
5.5.290.0100.08017.98
5.5.280.0000.06020.69
5.5.270.0030.06320.96
5.5.260.0000.06020.73
5.5.250.0070.07720.68
5.5.240.0270.08020.07
5.4.450.0200.04319.30
5.4.440.0270.07319.19
5.4.430.0230.05319.52
5.4.420.0300.07019.19
5.4.410.0170.04319.32
5.4.400.0300.05719.16
5.4.390.0300.07719.06
5.4.380.0170.05319.22
5.4.370.0130.04018.87
5.4.360.0270.04019.20
5.4.350.0230.03319.09
5.4.340.0230.07019.21
5.4.320.0270.04318.99
5.4.310.0170.07318.95
5.4.300.0270.04718.94
5.4.290.0270.07019.00
5.4.280.0200.06719.22
5.4.270.0230.04319.23
5.4.260.0270.06019.05
5.4.250.0200.04719.20
5.4.240.0100.06319.21
5.4.230.0300.06719.05
5.4.220.0300.07019.20
5.4.210.0230.04019.19
5.4.200.0270.03718.83
5.4.190.0300.06718.99
5.4.180.0230.04019.23
5.4.170.0270.06719.07
5.4.160.0300.06319.18
5.4.150.0270.07318.95
5.4.140.0370.05716.34
5.4.130.0230.06316.33
5.4.120.0200.04016.33
5.4.110.0200.05016.45
5.4.100.0200.03316.19
5.4.90.0130.04316.36
5.4.80.0200.03316.34
5.4.70.0130.04016.43
5.4.60.0170.03716.19
5.4.50.0200.04716.34
5.4.40.0230.05316.17
5.4.30.0230.06316.52
5.4.20.0230.07716.33
5.4.10.0330.05016.52
5.4.00.0230.04316.11
5.3.290.0230.07314.66
5.3.280.0170.05714.59
5.3.270.0100.05014.50
5.3.260.0270.04314.52
5.3.250.0270.05714.50
5.3.240.0230.04314.65
5.3.230.0200.03714.52
5.3.220.0170.03714.49
5.3.210.0270.04014.78
5.3.200.0200.03714.61
5.3.190.0230.07314.71
5.3.180.0300.03714.56
5.3.170.0270.06314.49
5.3.160.0230.07014.49
5.3.150.0230.04014.57
5.3.140.0070.06014.63
5.3.130.0200.04014.55
5.3.120.0300.06314.62
5.3.110.0200.04714.62
5.3.100.0270.04314.49
5.3.90.0270.04014.49
5.3.80.0230.07314.49
5.3.70.0230.06314.49
5.3.60.0230.07314.49
5.3.50.0170.04714.49
5.3.40.0300.05014.49
5.3.30.0230.04014.49
5.3.20.0200.04014.49
5.3.10.0270.05014.49
5.3.00.0230.06314.49
5.2.170.0200.06014.49
5.2.160.0130.03314.49
5.2.150.0170.06014.49
5.2.140.0270.05014.49
5.2.130.0200.03714.49
5.2.120.0330.04714.49
5.2.110.0270.03014.49
5.2.100.0130.03314.49
5.2.90.0130.03014.49
5.2.80.0130.03314.49
5.2.70.0200.02314.49
5.2.60.0230.02314.49
5.2.50.0170.03314.49
5.2.40.0130.04314.49
5.2.30.0130.03314.49
5.2.20.0130.05714.49
5.2.10.0130.04314.49
5.2.00.0270.02314.49
5.1.60.0170.03014.49
5.1.50.0200.02714.49
5.1.40.0170.03014.49
5.1.30.0170.05714.49
5.1.20.0100.03014.49
5.1.10.0170.03714.49
5.1.00.0130.03314.49
5.0.50.0030.03014.49
5.0.40.0070.04014.49
5.0.30.0070.04014.49
5.0.20.0100.01714.49
5.0.10.0070.02014.49
5.0.00.0100.04014.49
4.4.90.0100.02314.49
4.4.80.0100.03314.49
4.4.70.0100.01714.49
4.4.60.0100.01714.49
4.4.50.0070.01714.49
4.4.40.0070.05714.49
4.4.30.0100.03014.49
4.4.20.0070.02314.49
4.4.10.0070.02314.49
4.4.00.0100.05314.49
4.3.110.0070.02014.49
4.3.100.0100.01314.49
4.3.90.0070.03714.49
4.3.80.0070.05314.49
4.3.70.0100.03014.49
4.3.60.0130.02314.49
4.3.50.0130.02014.49
4.3.40.0100.03014.49
4.3.30.0030.03714.49
4.3.20.0070.01714.49
4.3.10.0070.03314.49
4.3.00.0030.02314.49

preferences:
40.6 ms | 401 KiB | 5 Q