3v4l.org

run code in 300+ PHP versions simultaneously
<?php class weird { var $myvar; var $other; var $blee = 'bleeblee'; var $bla; function __construct() { $myvar = 'other'; ${'myvar'} = 'blee'; ${'$myvar'} = 'bla'; $this->myvar = "A"; $this->$myvar = "B"; $this->${'myvar'} = "C"; $this->${'$myvar'} = "D"; echo 'this->myvar: '.$this->myvar."\n"; echo 'this->$myvar: '.$this->$myvar."\n"; echo 'this->${\'myvar\'}: '.$this->${'myvar'}."\n"; echo 'this->${\'$myvar\'}: '.$this->${'$myvar'}."\n"; echo 'this->$$$$$$$myvar: '.$this->$$$$$$$myvar."\n"; echo 'this->$$$$$$${\'$$$myvar\'}: ' . $this->$$$$$$${'$$$myvar'}."\n"; } } $obj = new weird; ?>

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)
8.3.60.0150.00316.75
8.3.50.0090.00921.27
8.3.40.0110.00718.60
8.3.30.0090.00618.63
8.3.20.0080.00020.33
8.3.10.0040.00421.89
8.3.00.0060.00323.48
8.2.180.0090.00918.41
8.2.170.0090.00622.96
8.2.160.0140.00020.45
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0030.00519.59
8.2.120.0050.00326.35
8.2.110.0070.00321.06
8.2.100.0040.00717.91
8.2.90.0060.00517.75
8.2.80.0080.00017.97
8.2.70.0000.00817.80
8.2.60.0040.00418.05
8.2.50.0000.00918.10
8.2.40.0050.00520.44
8.2.30.0040.00419.42
8.2.20.0040.00417.63
8.2.10.0000.00718.00
8.2.00.0070.00018.02
8.1.280.0040.01125.92
8.1.270.0090.00923.85
8.1.260.0050.00528.09
8.1.250.0040.00428.09
8.1.240.0060.00322.19
8.1.230.0070.00419.04
8.1.220.0050.00317.74
8.1.210.0090.00018.77
8.1.200.0030.00717.25
8.1.190.0030.00617.35
8.1.180.0080.00018.10
8.1.170.0000.00918.62
8.1.160.0000.00720.77
8.1.150.0040.00418.88
8.1.140.0070.00319.57
8.1.130.0030.00517.61
8.1.120.0080.00017.50
8.1.110.0040.00417.29
8.1.100.0070.00017.46
8.1.90.0030.00517.34
8.1.80.0000.00817.36
8.1.70.0000.00717.47
8.1.60.0050.00317.57
8.1.50.0000.00817.50
8.1.40.0040.00417.55
8.1.30.0000.00817.63
8.1.20.0030.00617.65
8.1.10.0070.00017.54
8.1.00.0040.00417.47
8.0.300.0040.00419.82
8.0.290.0050.00316.75
8.0.280.0050.00318.46
8.0.270.0040.00417.16
8.0.260.0070.00017.25
8.0.250.0030.00317.04
8.0.240.0000.00816.95
8.0.230.0000.00816.96
8.0.220.0040.00416.94
8.0.210.0040.00416.91
8.0.200.0030.00316.91
8.0.190.0080.00017.03
8.0.180.0030.00516.89
8.0.170.0050.00516.96
8.0.160.0040.00417.05
8.0.150.0040.00416.93
8.0.140.0000.00816.86
8.0.130.0050.00013.34
8.0.120.0020.00516.82
8.0.110.0020.00616.94
8.0.100.0070.00017.00
8.0.90.0070.00016.95
8.0.80.0070.01016.93
8.0.70.0070.00016.81
8.0.60.0030.00517.07
8.0.50.0040.00416.82
8.0.30.0140.00417.21
8.0.20.0120.01017.40
8.0.10.0000.00716.94
8.0.00.0130.00616.85
7.4.330.0000.00516.79
7.4.320.0000.00616.40
7.4.300.0050.00316.48
7.4.290.0000.00716.57
7.4.280.0030.00616.42
7.4.270.0000.00716.61
7.4.260.0070.00016.45
7.4.250.0000.00716.47
7.4.240.0050.00216.48
7.4.230.0040.00416.48
7.4.220.0070.01416.57
7.4.210.0130.00016.54
7.4.200.0000.00716.50
7.4.160.0130.00316.41
7.4.150.0090.00917.40
7.4.140.0090.01317.86
7.4.130.0130.00616.47
7.4.120.0080.00816.43
7.4.110.0100.00816.32
7.4.100.0100.01316.50
7.4.90.0040.01316.54
7.4.80.0090.00919.39
7.4.70.0080.00816.74
7.4.60.0090.00616.60
7.4.50.0000.01416.55
7.4.40.0100.00716.62
7.4.30.0090.00916.63
7.4.00.0120.00515.12
7.3.330.0020.00213.33
7.3.320.0060.00013.24
7.3.310.0040.00416.32
7.3.300.0060.00016.27
7.3.290.0090.00616.42
7.3.280.0080.00916.44
7.3.270.0100.00717.40
7.3.260.0140.00316.39
7.3.250.0080.00916.42
7.3.240.0080.01016.37
7.3.230.0070.01016.39
7.3.210.0130.00416.45
7.3.200.0130.00319.39
7.3.190.0100.01016.44
7.3.180.0150.00016.38
7.3.170.0090.00616.64
7.3.160.0110.00616.48
7.3.120.0030.01414.88
7.3.110.0140.00414.67
7.3.100.0060.00614.70
7.3.90.0070.00715.07
7.3.80.0070.00714.85
7.3.70.0040.00714.95
7.3.60.0110.00314.88
7.3.50.0060.01214.95
7.3.40.0070.01014.54
7.3.30.0060.00314.78
7.3.20.0080.00416.52
7.3.10.0030.01316.86
7.3.00.0030.00916.74
7.2.330.0120.00816.63
7.2.320.0070.01416.49
7.2.310.0100.00716.69
7.2.300.0050.01116.74
7.2.290.0030.01316.68
7.2.250.0030.01615.14
7.2.240.0100.01014.64
7.2.230.0100.00715.03
7.2.220.0040.00915.06
7.2.210.0060.00615.21
7.2.200.0130.00014.94
7.2.190.0060.00914.76
7.2.180.0100.00714.90
7.2.170.0070.01315.17
7.2.60.0120.00316.77
7.2.00.0040.01119.41
7.1.330.0070.00715.84
7.1.320.0100.00315.64
7.1.310.0090.00815.73
7.1.300.0060.00915.85
7.1.290.0030.01615.94
7.1.280.0030.00915.48
7.1.270.0090.00315.73
7.1.260.0100.00015.86
7.1.200.0040.00815.94
7.1.100.0040.00818.33
7.1.70.0030.00517.29
7.1.60.0090.00919.27
7.1.50.0070.01016.99
7.1.00.0100.07022.41
7.0.200.0050.00316.90
7.0.100.0200.04720.02
7.0.90.0130.04719.96
7.0.80.0270.04319.98
7.0.70.0170.08019.99
7.0.60.0100.03719.95
7.0.50.0270.09020.36
7.0.40.0030.06020.14
7.0.30.0070.04020.00
7.0.20.0000.04720.17
7.0.10.0030.05320.12
7.0.00.0070.04720.04
5.6.280.0030.04321.07
5.6.250.0030.05020.63
5.6.240.0070.06320.55
5.6.230.0170.05720.60
5.6.220.0000.08720.62
5.6.210.0030.06720.63
5.6.200.0100.07020.95
5.6.190.0030.04721.03
5.6.180.0100.04721.09
5.6.170.0030.03720.96
5.6.160.0070.04021.08
5.6.150.0000.04321.08
5.6.140.0070.04021.04
5.6.130.0030.04021.14
5.6.120.0170.03321.01
5.6.110.0030.04320.95
5.6.100.0130.03320.95
5.6.90.0030.04321.06
5.6.80.0070.04020.43
5.6.70.0070.03320.29
5.6.60.0070.04020.43
5.6.50.0000.04320.41
5.6.40.0000.04320.48
5.6.30.0070.04020.41
5.6.20.0030.04320.43
5.6.10.0070.03720.40
5.6.00.0030.04720.29
5.5.380.0070.05320.52
5.5.370.0200.07320.57
5.5.360.0070.04020.35
5.5.350.0030.04720.40
5.5.340.0030.08720.88
5.5.330.0030.07720.92
5.5.320.0100.03720.91
5.5.310.0070.03720.94
5.5.300.0030.04020.80
5.5.290.0070.04020.81
5.5.280.0030.05020.79
5.5.270.0030.04320.89
5.5.260.0070.05320.92
5.5.250.0070.03720.70
5.5.240.0100.03320.22
5.5.230.0030.04020.29
5.5.220.0000.04320.16
5.5.210.0030.08720.27
5.5.200.0000.04320.17
5.5.190.0000.05020.25
5.5.180.0000.05019.97
5.5.160.0030.04020.29
5.5.150.0100.03020.15
5.5.140.0030.04020.12
5.5.130.0030.04720.24
5.5.120.0000.04720.10
5.5.110.0070.03320.28
5.5.100.0070.03320.07
5.5.90.0000.04720.16
5.5.80.0030.03320.12
5.5.70.0030.04020.01
5.5.60.0000.04320.16
5.5.50.0170.05720.12
5.5.40.0000.07320.09
5.5.30.0000.05019.94
5.5.20.0030.08020.09
5.5.10.0000.04720.13
5.5.00.0070.05019.96
5.4.450.0030.04319.20
5.4.440.0030.03719.48
5.4.430.0000.04019.20
5.4.420.0000.05319.48
5.4.410.0070.04319.07
5.4.400.0130.02719.05
5.4.390.0100.03019.13
5.4.380.0000.04319.10
5.4.370.0070.03319.22
5.4.360.0000.04019.04
5.4.350.0030.05718.95
5.4.340.0000.04319.23
5.4.320.0070.03719.09
5.4.310.0000.03719.16
5.4.300.0100.02719.12
5.4.290.0070.04019.12
5.4.280.0100.03719.16
5.4.270.0130.02719.04
5.4.260.0070.03719.20
5.4.250.0070.05319.04
5.4.240.0000.04019.13
5.4.230.0030.03719.23
5.4.220.0030.04319.11
5.4.210.0130.07319.23
5.4.200.0100.07019.08
5.4.190.0070.07319.03
5.4.180.0070.07719.20
5.4.170.0100.06719.13
5.4.160.0130.07019.20
5.4.150.0070.07019.00
5.4.140.0130.06016.46
5.4.130.0170.06016.32
5.4.120.0030.07716.43
5.4.110.0100.07016.44
5.4.100.0030.07716.46
5.4.90.0030.07716.49
5.4.80.0070.07016.25
5.4.70.0030.04316.50
5.4.60.0130.07016.48
5.4.50.0070.07016.33
5.4.40.0130.06016.42
5.4.30.0070.03716.36
5.4.20.0100.05716.36
5.4.10.0100.05716.30
5.4.00.0070.03715.78
5.3.290.0030.07014.73
5.3.280.0100.05014.70
5.3.270.0030.07014.57
5.3.260.0070.07714.70
5.3.250.0130.07014.70
5.3.240.0100.07314.64
5.3.230.0000.08314.57
5.3.220.0000.08014.69
5.3.210.0030.06014.56
5.3.200.0100.07714.56
5.3.190.0100.07014.70
5.3.180.0100.06714.66
5.3.170.0070.07014.55
5.3.160.0130.07014.67
5.3.150.0100.08014.50
5.3.140.0070.07314.48
5.3.130.0030.08014.56
5.3.120.0070.07714.64
5.3.110.0070.07014.48
5.3.100.0100.07014.18
5.3.90.0030.08014.08
5.3.80.0100.07714.07
5.3.70.0070.05714.07
5.3.60.0070.07013.93
5.3.50.0070.07014.06
5.3.40.0070.07313.87
5.3.30.0130.07013.93
5.3.20.0030.07313.67
5.3.10.0230.05313.75
5.3.00.0100.06013.78
5.2.170.0030.04011.60
5.2.160.0030.06311.60
5.2.150.0070.03311.60
5.2.140.0070.06711.60
5.2.130.0070.06011.60
5.2.120.0070.05711.60
5.2.110.0030.06311.60
5.2.100.0100.05711.60
5.2.90.0070.04311.60
5.2.80.0030.07011.60
5.2.70.0100.05711.60
5.2.60.0030.03711.60
5.2.50.0130.02711.60
5.2.40.0130.04011.60
5.2.30.0100.05711.60
5.2.20.0030.03711.60
5.2.10.0030.06311.60
5.2.00.0070.03311.60
5.1.60.0000.05311.60
5.1.50.0030.04311.60
5.1.40.0030.03011.60
5.1.30.0030.06011.60
5.1.20.0030.05011.60
5.1.10.0100.05011.60
5.1.00.0070.05311.60
5.0.50.0000.02311.60
5.0.40.0000.04311.60
5.0.30.0000.03711.60
5.0.20.0030.04711.60
5.0.10.0030.04311.60
5.0.00.0100.04711.60
4.4.90.0030.03311.60
4.4.80.0030.02011.60
4.4.70.0030.01711.60
4.4.60.0000.03711.60
4.4.50.0030.03311.60
4.4.40.0030.05011.60
4.4.30.0030.03711.60
4.4.20.0000.03311.60
4.4.10.0030.02011.60
4.4.00.0000.03011.60
4.3.110.0070.03011.60
4.3.100.0000.03011.60
4.3.90.0000.02711.60
4.3.80.0030.04711.60
4.3.70.0030.02311.60
4.3.60.0030.03011.60
4.3.50.0000.04011.60
4.3.40.0000.05311.60
4.3.30.0000.02011.60
4.3.20.0000.04011.60
4.3.10.0000.02311.60
4.3.00.0000.03711.60

preferences:
54.27 ms | 401 KiB | 5 Q