3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $val = "a"; echo $this->{$val}; // outputs "hello" echo "\n"; $val = "b"; echo $this->{$val}; // outputs "hi" echo "\n"; echo $this->val; //outputs "howdy" echo "\n"; echo $this->{"val"}; } function saluda(){ echo $a; } } $foo = new foo(); $foo->saluda();

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)
8.3.70.0110.00416.63
8.3.60.0090.00618.45
8.3.50.0170.00516.48
8.3.40.0030.01019.02
8.3.30.0120.00618.84
8.3.20.0080.00018.81
8.3.10.0040.00420.70
8.3.00.0040.00417.50
8.2.180.0130.00616.88
8.2.170.0000.01522.96
8.2.160.0070.00722.15
8.2.150.0080.00824.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00419.77
8.2.110.0060.00321.07
8.2.100.0070.00417.84
8.2.90.0080.00019.05
8.2.80.0060.00318.03
8.2.70.0040.00417.63
8.2.60.0030.00617.90
8.2.50.0000.00818.07
8.2.40.0000.00818.16
8.2.30.0070.00018.05
8.2.20.0030.00517.63
8.2.10.0070.00017.84
8.2.00.0000.00817.87
8.1.280.0100.00625.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0000.00922.42
8.1.230.0040.00720.90
8.1.220.0040.00418.77
8.1.210.0040.00418.91
8.1.200.0070.00317.36
8.1.190.0000.00717.53
8.1.180.0080.00018.10
8.1.170.0040.00418.77
8.1.160.0040.00418.80
8.1.150.0040.00418.68
8.1.140.0040.00417.37
8.1.130.0030.00317.94
8.1.120.0040.00417.36
8.1.110.0040.00417.46
8.1.100.0050.00217.34
8.1.90.0070.00017.32
8.1.80.0030.00317.48
8.1.70.0040.00417.47
8.1.60.0000.00817.61
8.1.50.0030.00517.50
8.1.40.0070.00017.35
8.1.30.0040.00417.54
8.1.20.0060.00317.56
8.1.10.0060.00317.59
8.1.00.0000.00917.52
8.0.300.0000.00720.07
8.0.290.0040.00416.75
8.0.280.0070.00018.32
8.0.270.0030.00317.21
8.0.260.0000.00716.79
8.0.250.0040.00417.02
8.0.240.0090.00017.01
8.0.230.0000.00816.87
8.0.220.0070.00017.02
8.0.210.0000.00816.96
8.0.200.0070.00016.93
8.0.190.0000.00717.00
8.0.180.0040.00416.94
8.0.170.0030.00516.98
8.0.160.0040.00417.04
8.0.150.0000.00816.91
8.0.140.0030.00616.91
8.0.130.0000.00513.38
8.0.120.0000.00716.93
8.0.110.0030.00317.02
8.0.100.0000.00716.89
8.0.90.0070.00016.80
8.0.80.0060.00916.93
8.0.70.0080.00016.87
8.0.60.0040.00416.94
8.0.50.0040.00416.78
8.0.30.0070.01217.14
8.0.20.0050.01517.14
8.0.10.0000.00717.06
8.0.00.0130.00716.81
7.4.330.0000.00614.70
7.4.320.0000.00616.50
7.4.300.0060.00016.41
7.4.290.0000.00816.55
7.4.280.0060.00316.57
7.4.270.0070.00016.49
7.4.260.0050.00013.18
7.4.250.0000.00816.60
7.4.240.0040.00416.58
7.4.230.0070.00016.25
7.4.220.0120.01216.60
7.4.210.0110.00616.60
7.4.200.0030.00416.58
7.4.190.0030.00316.75
7.4.160.0040.01416.47
7.4.150.0090.01317.07
7.4.140.0120.00917.18
7.4.130.0120.00516.61
7.4.120.0070.01116.55
7.4.110.0180.00016.54
7.4.100.0100.00616.53
7.4.90.0070.01516.57
7.4.80.0060.01118.80
7.4.70.0090.00916.50
7.4.60.0160.00716.68
7.4.50.0090.00016.49
7.4.40.0040.01122.27
7.4.30.0060.01016.39
7.4.00.0030.01215.20
7.3.330.0060.00013.40
7.3.320.0000.00713.39
7.3.310.0000.00816.39
7.3.300.0030.00316.38
7.3.290.0000.01516.39
7.3.280.0090.00616.45
7.3.270.0100.00717.07
7.3.260.0110.00718.24
7.3.250.0090.00816.57
7.3.240.0070.01016.37
7.3.230.0060.01116.52
7.3.210.0160.00016.43
7.3.200.0100.00719.39
7.3.190.0080.01216.61
7.3.180.0130.00416.38
7.3.170.0050.01216.44
7.3.160.0090.00616.43
7.3.120.0080.00814.93
7.3.00.0080.00316.77
7.2.330.0120.00616.71
7.2.320.0060.01116.80
7.2.310.0140.00816.85
7.2.300.0060.01116.60
7.2.290.0040.01116.53
7.2.130.0040.01116.80
7.2.120.0040.00816.63
7.2.110.0120.00016.71
7.2.100.0000.01216.86
7.2.90.0000.00916.92
7.2.80.0070.00716.87
7.2.70.0060.00316.63
7.2.60.0080.00416.78
7.2.50.0150.00617.04
7.2.40.0120.00016.93
7.2.30.0100.00617.07
7.2.20.0000.01516.85
7.2.10.0070.00416.81
7.2.00.0030.00818.13
7.1.250.0030.00415.90
7.1.240.0040.00715.72
7.1.230.0120.00315.77
7.1.220.0030.01015.63
7.1.210.0030.00815.36
7.1.200.0050.00515.29
7.1.190.0080.00615.82
7.1.180.0100.00315.75
7.1.170.0090.00315.71
7.1.160.0030.01015.84
7.1.150.0030.01115.69
7.1.140.0040.00715.93
7.1.130.0040.00715.72
7.1.120.0120.00015.50
7.1.110.0030.00615.91
7.1.100.0390.00515.90
7.1.90.0030.00615.62
7.1.80.0040.00415.98
7.1.70.0020.00816.24
7.1.60.0090.00917.45
7.1.50.0090.00816.29
7.1.40.0000.00815.79
7.1.30.0040.00415.64
7.1.20.0040.00815.84
7.1.10.0040.00815.68
7.1.00.0060.02019.17
7.0.330.0040.00415.27
7.0.320.0110.00415.02
7.0.310.0110.00415.30
7.0.300.0000.01315.32
7.0.290.0080.00315.31
7.0.280.0090.00315.33
7.0.270.0110.00015.24
7.0.260.0030.00915.36
7.0.250.0040.01215.50
7.0.240.0060.00615.14
7.0.230.0080.00715.34
7.0.220.0060.00615.27
7.0.210.0000.01015.26
7.0.200.0050.00416.00
7.0.190.0040.00415.15
7.0.180.0040.00415.45
7.0.170.0060.00615.45
7.0.160.0000.00815.36
7.0.150.0040.00815.28
7.0.140.0090.03618.68
7.0.130.0080.00814.98
7.0.120.0040.00415.22
7.0.110.0090.00315.31
7.0.100.0060.00615.40
7.0.90.0060.00315.35
7.0.80.0070.00315.21
7.0.70.0090.00015.36
7.0.60.0150.04217.78
7.0.50.0040.02216.41
7.0.40.0080.03016.75
7.0.30.0090.04616.60
7.0.20.0100.03016.85
7.0.10.0050.02916.65
7.0.00.0070.02416.61
5.6.380.0110.00014.54
5.6.370.0060.00614.05
5.6.360.0030.01214.46
5.6.350.0060.00614.31
5.6.340.0030.01014.18
5.6.330.0000.01214.54
5.6.320.0050.00514.29
5.6.310.0100.00014.24
5.6.300.0070.00414.21
5.6.290.0030.00514.19
5.6.280.0080.03517.71
5.6.270.0030.00614.06
5.6.260.0060.00314.50
5.6.250.0030.00514.21
5.6.240.0090.00314.52
5.6.230.0030.00714.15
5.6.220.0030.00614.09
5.6.210.0070.02717.47
5.6.200.0030.02716.16
5.6.190.0150.02217.51
5.6.180.0050.03217.29
5.6.170.0070.02717.39
5.6.160.0070.04517.46
5.6.150.0020.03417.23
5.6.140.0070.04417.22
5.6.130.0070.04717.34
5.6.120.0060.04717.25
5.6.110.0130.04017.24
5.6.100.0030.04217.30
5.6.90.0130.04017.15
5.6.80.0100.04116.98
5.6.70.0050.02316.77
5.6.60.0060.02517.06
5.6.50.0050.03717.09
5.6.40.0100.04016.91
5.6.30.0070.04516.99
5.6.20.0130.03716.90
5.6.10.0030.03016.96
5.6.00.0050.02717.01
5.5.380.0040.00411.06
5.5.370.0000.01111.14
5.5.360.0030.00911.11
5.5.350.0030.04315.75
5.5.340.0050.02314.75
5.5.330.0050.02615.61
5.5.320.0060.04515.83
5.5.310.0110.04015.76
5.5.300.0000.02815.68
5.5.290.0090.04515.62
5.5.280.0080.02715.56
5.5.270.0070.03915.83
5.5.260.0050.04315.66
5.5.250.0020.03215.54
5.5.240.0100.03215.32
5.5.230.0090.04315.34
5.5.220.0080.03015.35
5.5.210.0050.03815.18
5.5.200.0080.03215.13
5.5.190.0070.02815.18
5.5.180.0070.03615.17
5.5.170.0040.00410.76
5.5.160.0050.03515.21
5.5.150.0050.04215.07
5.5.140.0060.03615.29
5.5.130.0030.04115.28
5.5.120.0080.02315.08
5.5.110.0070.03015.14
5.5.100.0030.03415.17
5.5.90.0010.02815.33
5.5.80.0090.04215.17
5.5.70.0050.03015.43
5.5.60.0030.02715.03
5.5.50.0030.03315.40
5.5.40.0050.02614.95
5.5.30.0030.04215.34
5.5.20.0040.03115.04
5.5.10.0050.03515.04
5.5.00.0020.04615.24
5.4.450.0070.03315.17
5.4.440.0020.03915.30
5.4.430.0000.03415.05
5.4.420.0040.02315.13
5.4.410.0030.03115.16
5.4.400.0070.03714.96
5.4.390.0070.03514.88
5.4.380.0090.02514.87
5.4.370.0030.02815.10
5.4.360.0050.03315.23
5.4.350.0060.03714.85
5.4.340.0080.02615.11
5.4.330.0030.00510.71
5.4.320.0030.02715.03
5.4.310.0070.02015.19
5.4.300.0070.02314.89
5.4.290.0050.02114.82
5.4.280.0070.04015.14
5.4.270.0070.03715.00
5.4.260.0070.03715.14
5.4.250.0080.03515.00
5.4.240.0080.02215.12
5.4.230.0060.02314.92
5.4.220.0060.04015.13
5.4.210.0050.02715.04
5.4.200.0050.02715.21
5.4.190.0050.02815.09
5.4.180.0010.02314.76
5.4.170.0020.02215.09
5.4.160.0070.03815.07
5.4.150.0030.03814.96
5.4.140.0000.04013.52
5.4.130.0090.03513.73
5.4.120.0040.03913.61
5.4.110.0030.04213.77
5.4.100.0030.03113.83
5.4.90.0030.04113.79
5.4.80.0030.02213.78
5.4.70.0020.02213.52
5.4.60.0060.01813.71
5.4.50.0020.02213.76
5.4.40.0020.02413.79
5.4.30.0020.02413.64
5.4.20.0080.01513.72
5.4.10.0020.02013.72
5.4.00.0020.02213.53
5.3.290.0050.02212.76
5.3.280.0030.02312.63
5.3.270.0050.02712.66
5.3.260.0020.02312.64
5.3.250.0030.04012.68
5.3.240.0080.03512.59
5.3.230.0050.02112.67
5.3.220.0100.03712.54
5.3.210.0080.03712.57
5.3.200.0040.03712.49
5.3.190.0050.02512.64
5.3.180.0010.02112.63
5.3.170.0050.02012.45
5.3.160.0060.01812.64
5.3.150.0020.02212.50
5.3.140.0000.02412.64
5.3.130.0030.02012.48
5.3.120.0020.02412.46
5.3.110.0030.02112.54
5.3.100.0020.02312.26
5.3.90.0040.01912.40
5.3.80.0030.02012.28
5.3.70.0000.02212.34
5.3.60.0030.02012.35
5.3.50.0030.01912.31
5.3.40.0000.02712.12
5.3.30.0050.01712.18
5.3.20.0000.02212.04
5.3.10.0040.01811.96
5.3.00.0020.02011.99
5.2.170.0040.01510.71
5.2.160.0050.01510.69
5.2.150.0050.01710.65
5.2.140.0020.01710.74
5.2.130.0000.01910.76
5.2.120.0000.01810.76
5.2.110.0030.01710.62
5.2.100.0000.01910.70
5.2.90.0030.01610.71
5.2.80.0000.01810.68
5.2.70.0000.01810.68
5.2.60.0020.01810.66
5.2.50.0030.01610.58
5.2.40.0000.01810.71
5.2.30.0020.01710.62
5.2.20.0060.01310.68
5.2.10.0050.01310.58
5.2.00.0030.01710.49
5.1.60.0030.01310.12
5.1.50.0020.01610.16
5.1.40.0030.01210.20
5.1.30.0020.01510.31
5.1.20.0030.01510.33
5.1.10.0020.01610.17
5.1.00.0000.01710.16
5.0.50.0040.0089.47
5.0.40.0010.0139.29
5.0.30.0020.0159.23
5.0.20.0030.0109.24
5.0.10.0010.0119.22
5.0.00.0020.0319.23
4.4.90.0000.0128.86
4.4.80.0000.0118.86
4.4.70.0020.0088.86
4.4.60.0000.0108.86
4.4.50.0020.0088.86
4.4.40.0040.0138.86
4.4.30.0040.0078.86
4.4.20.0020.0088.86
4.4.10.0020.0098.86
4.4.00.0020.0128.86
4.3.110.0000.0108.86
4.3.100.0030.0188.86
4.3.90.0020.0148.86
4.3.80.0020.0308.86
4.3.70.0050.0158.86
4.3.60.0000.0168.86
4.3.50.0000.0178.86
4.3.40.0000.0308.86
4.3.30.0040.0108.86
4.3.20.0060.0088.86
4.3.10.0000.0178.86
4.3.00.0000.0158.86

preferences:
35.17 ms | 401 KiB | 5 Q