3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $gay->b = "hello"; $this->a = "hi"; $this->val = "howdy"; $val = "a"; echo $this->{$val}; // outputs "hello" echo "\n"; $val = "b"; echo $gay->{$val}; // outputs "hi" echo "\n"; echo $this->val; //outputs "howdy" echo "\n"; echo $this->{"val"}; } } $foo = new 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)
8.3.40.0140.00018.75
8.3.30.0040.01118.86
8.3.20.0070.00020.20
8.3.10.0040.00423.64
8.3.00.0040.00419.38
8.2.170.0070.01022.96
8.2.160.0030.01020.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.12
8.2.110.0000.00922.15
8.2.100.0090.00319.34
8.2.90.0060.00619.05
8.2.80.0000.00817.97
8.2.70.0090.00017.61
8.2.60.0000.00717.80
8.2.50.0080.00018.07
8.2.40.0080.00019.95
8.2.30.0000.00718.00
8.2.20.0040.00417.69
8.2.10.0060.00318.04
8.2.00.0070.00017.68
8.1.270.0050.00323.91
8.1.260.0000.00726.35
8.1.250.0060.01228.09
8.1.240.0090.00023.96
8.1.230.0030.00719.10
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0050.00317.23
8.1.180.0030.00618.94
8.1.170.0040.00418.52
8.1.160.0000.00721.93
8.1.150.0000.00718.70
8.1.140.0050.00317.20
8.1.130.0050.00217.76
8.1.120.0030.00517.27
8.1.110.0050.00317.36
8.1.100.0040.00417.36
8.1.90.0040.00417.29
8.1.80.0040.00417.37
8.1.70.0000.00717.30
8.1.60.0000.00817.63
8.1.50.0040.00417.43
8.1.40.0070.00017.53
8.1.30.0040.00417.54
8.1.20.0000.00817.66
8.1.10.0000.00817.54
8.1.00.0000.00817.52
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0030.00318.28
8.0.270.0070.00017.08
8.0.260.0000.00817.30
8.0.250.0030.00316.96
8.0.240.0060.00316.92
8.0.230.0030.00316.88
8.0.220.0000.00716.86
8.0.210.0030.00516.93
8.0.200.0030.00617.02
8.0.190.0040.00416.87
8.0.180.0070.00316.93
8.0.170.0000.00716.96
8.0.160.0070.00016.88
8.0.150.0080.00016.74
8.0.140.0000.00716.83
8.0.130.0000.00613.31
8.0.120.0000.00716.86
8.0.110.0050.00216.82
8.0.100.0000.00716.93
8.0.90.0000.00816.78
8.0.80.0100.00616.89
8.0.70.0050.00316.90
8.0.60.0050.00216.88
8.0.50.0080.00016.95
8.0.30.0120.00717.05
8.0.20.0150.00917.40
8.0.10.0070.00017.04
8.0.00.0100.00816.73
7.4.330.0060.00015.02
7.4.320.0030.00316.45
7.4.300.0060.00016.64
7.4.290.0030.00316.57
7.4.280.0120.00016.64
7.4.270.0050.00216.55
7.4.260.0040.00416.36
7.4.250.0040.00416.44
7.4.240.0050.00216.50
7.4.230.0030.00316.41
7.4.220.0120.00916.54
7.4.210.0060.00916.62
7.4.200.0040.00416.59
7.4.160.0100.01016.41
7.4.150.0090.00917.40
7.4.140.0080.00817.86
7.4.130.0080.00916.45
7.4.120.0070.01016.44
7.4.110.0060.01316.37
7.4.100.0100.00716.65
7.4.90.0170.00316.63
7.4.80.0030.01619.39
7.4.70.0170.00016.61
7.4.60.0120.00916.48
7.4.50.0000.00816.73
7.4.40.0060.00916.43
7.4.30.0070.01016.67
7.4.00.0140.00914.96
7.3.330.0030.00313.26
7.3.320.0050.00213.28
7.3.310.0060.00016.51
7.3.300.0030.00316.28
7.3.290.0120.00316.34
7.3.280.0070.01016.43
7.3.270.0070.01017.40
7.3.260.0060.01216.37
7.3.250.0110.00616.40
7.3.240.0080.00816.36
7.3.230.0060.00916.64
7.3.210.0120.00616.50
7.3.200.0100.00619.39
7.3.190.0060.01016.71
7.3.180.0110.01116.40
7.3.170.0030.01316.40
7.3.160.0110.00516.33
7.3.120.0210.00814.83
7.3.110.0170.00914.90
7.3.100.0210.00914.94
7.3.90.0120.02014.59
7.3.80.0080.01714.63
7.3.70.0100.01714.60
7.3.60.0260.00314.75
7.3.50.0180.01114.60
7.3.40.0230.00514.82
7.3.30.0220.00314.75
7.3.20.0160.01316.66
7.3.10.0120.01116.69
7.3.00.0130.00516.68
7.2.330.0150.00616.86
7.2.320.0140.00616.62
7.2.310.0060.01116.48
7.2.300.0100.00716.80
7.2.290.0070.01116.70
7.2.250.0190.01115.00
7.2.240.0290.00015.05
7.2.230.0060.02215.01
7.2.220.0250.00514.96
7.2.210.0110.01415.18
7.2.200.0170.01315.00
7.2.190.0280.00315.10
7.2.180.0120.01614.88
7.2.170.0140.01715.13
7.2.160.0250.00015.05
7.2.150.0170.01316.81
7.2.140.0090.01816.85
7.2.130.0100.00916.92
7.2.120.0120.01016.80
7.2.110.0130.00616.82
7.2.100.0180.00416.98
7.2.90.0120.00716.71
7.2.80.0110.00714.56
7.2.70.0120.01117.00
7.2.60.0110.01016.84
7.2.50.0110.01316.73
7.2.40.0140.00916.94
7.2.30.0110.01017.05
7.2.20.0150.00717.01
7.2.10.0110.01216.86
7.2.00.0070.00917.77
7.1.330.0200.00615.82
7.1.320.0160.00915.95
7.1.310.0120.01215.77
7.1.300.0220.00615.79
7.1.290.0190.01015.81
7.1.280.0160.01015.79
7.1.270.0190.00915.77
7.1.260.0150.01115.58
7.1.250.0100.00915.53
7.1.240.0190.00815.82
7.1.230.0130.01315.63
7.1.220.0120.01515.70
7.1.210.0200.01015.82
7.1.200.0120.01015.80
7.1.190.0180.01215.77
7.1.180.0200.01115.74
7.1.170.0230.00715.84
7.1.160.0120.01515.86
7.1.150.0160.01215.84
7.1.140.0220.00615.73
7.1.130.0210.00515.69
7.1.120.0090.01815.52
7.1.110.0180.01115.60
7.1.100.0080.01316.60
7.1.90.0120.01215.87
7.1.80.0160.01315.53
7.1.70.0020.01616.38
7.1.60.0170.00817.41
7.1.50.0110.01416.38
7.1.40.0140.01415.77
7.1.30.0180.00815.87
7.1.20.0270.00315.56
7.1.10.0040.02415.76
7.1.00.0140.03919.09
7.0.330.0170.00915.16
7.0.320.0130.01315.47
7.0.310.0180.01115.43
7.0.300.0200.00815.30
7.0.290.0210.00715.50
7.0.280.0200.00215.54
7.0.270.0150.01015.46
7.0.260.0170.01115.14
7.0.250.0210.00415.38
7.0.240.0150.01115.34
7.0.230.0150.01215.51
7.0.220.0120.01515.48
7.0.210.0100.01715.40
7.0.200.0090.00916.04
7.0.190.0190.00915.32
7.0.180.0160.00815.39
7.0.170.0110.01515.41
7.0.160.0160.01015.26
7.0.150.0180.00515.16
7.0.140.0090.04218.71
7.0.130.0140.01415.51
7.0.120.0080.00815.27
7.0.110.0200.00715.37
7.0.100.0070.00715.27
7.0.90.0130.01315.64
7.0.80.0100.00315.53
7.0.70.0000.01115.63
7.0.60.0050.04617.62
7.0.50.0070.04016.77
7.0.40.0120.04216.67
7.0.30.0190.04516.89
7.0.20.0190.04116.84
7.0.10.0140.03316.96
7.0.00.0060.04816.73
5.6.400.0200.00314.52
5.6.390.0050.02114.36
5.6.380.0170.00914.41
5.6.370.0070.02014.20
5.6.360.0190.00814.32
5.6.350.0110.01414.38
5.6.340.0160.01614.50
5.6.330.0160.00411.20
5.6.320.0160.00511.20
5.6.310.0130.01914.07
5.6.300.0200.01014.34
5.6.290.0110.01814.65
5.6.280.0120.04017.82
5.6.270.0170.01014.23
5.6.260.0150.00914.72
5.6.250.0100.01014.42
5.6.240.0200.00014.41
5.6.230.0180.00614.39
5.6.220.0060.00614.53
5.6.210.0040.04217.42
5.6.200.0060.04116.21
5.6.190.0100.03217.49
5.6.180.0150.02817.45
5.6.170.0140.04817.35
5.6.160.0070.02717.37
5.6.150.0050.02916.24
5.6.140.0080.03416.33
5.6.130.0070.02216.18
5.6.120.0070.02317.75
5.6.110.0050.04717.58
5.6.100.0050.02317.73
5.6.90.0070.02217.67
5.6.80.0080.03817.38
5.6.70.0090.00614.22
5.6.60.0100.00714.49
5.6.50.0030.01414.24
5.6.40.0070.00714.19
5.6.30.0130.00014.28
5.6.20.0060.00914.17
5.6.10.0060.01014.04
5.6.00.0030.01014.32
5.5.380.0090.01814.39
5.5.370.0190.00814.39
5.5.360.0190.01014.27
5.5.350.0210.04417.59
5.5.340.0130.02416.07
5.5.330.0060.02917.21
5.5.320.0230.03017.28
5.5.310.0160.04817.12
5.5.300.0170.04216.09
5.5.290.0110.03915.94
5.5.280.0130.04617.66
5.5.270.0110.03817.57
5.5.260.0130.04717.45
5.5.250.0180.03517.55
5.5.240.0100.04317.22
5.5.230.0200.00414.25
5.5.220.0150.00914.49
5.5.210.0130.00914.05
5.5.200.0110.01414.29
5.5.190.0190.00613.84
5.5.180.0190.00714.24
5.5.170.0190.00813.84
5.5.160.0190.00614.09
5.5.150.0180.00814.32
5.5.140.0150.01214.14
5.5.130.0130.01314.14
5.5.120.0180.00914.34
5.5.110.0150.00914.60
5.5.100.0120.01514.18
5.5.90.0130.01214.27
5.5.80.0240.00314.41
5.5.70.0130.01314.27
5.5.60.0060.01914.31
5.5.50.0200.00714.26
5.5.40.0120.01214.33
5.5.30.0130.00814.57
5.5.20.0140.01114.11
5.5.10.0170.00914.32
5.5.00.0190.00413.93
5.4.450.0220.02615.42
5.4.440.0140.02715.33
5.4.430.0290.02015.34
5.4.420.0240.02115.41
5.4.410.0120.02815.29
5.4.400.0200.02615.31
5.4.390.0250.02615.10
5.4.380.0070.03714.92
5.4.370.0140.02714.91
5.4.360.0110.03214.92
5.4.350.0180.03014.92
5.4.340.0070.03514.97
5.4.330.0040.01311.23
5.4.320.0110.02311.88
5.4.310.0050.02611.85
5.4.300.0060.02311.90
5.4.290.0070.02211.85
5.4.280.0060.03211.80
5.4.270.0100.02011.80
5.4.260.0070.02411.79
5.4.250.0110.02111.80
5.4.240.0070.02911.80
5.4.230.0100.02311.79
5.4.220.0110.01911.79
5.4.210.0060.02311.79
5.4.200.0090.02311.79
5.4.190.0090.02011.79
5.4.180.0100.02011.79
5.4.170.0070.02311.86
5.4.160.0070.02211.79
5.4.150.0060.02411.79
5.4.140.0100.02111.63
5.4.130.0080.02711.63
5.4.120.0070.02611.64
5.4.110.0060.02211.61
5.4.100.0070.02211.61
5.4.90.0070.03011.61
5.4.80.0100.02711.61
5.4.70.0050.02311.60
5.4.60.0060.02511.64
5.4.50.0040.02411.60
5.4.40.0100.02511.60
5.4.30.0070.02611.63
5.4.20.0070.02311.60
5.4.10.0080.02011.60
5.4.00.0060.02411.34
5.3.290.0090.03512.80
5.3.280.0030.04012.71
5.3.270.0070.03712.73
5.3.260.0050.04112.72
5.3.250.0040.04212.72
5.3.240.0060.04212.72
5.3.230.0050.04012.70
5.3.220.0040.03912.68
5.3.210.0060.03812.68
5.3.200.0040.03812.68
5.3.190.0070.03612.68
5.3.180.0030.03912.67
5.3.170.0050.03712.67
5.3.160.0060.04912.67
5.3.150.0080.05012.67
5.3.140.0090.04712.66
5.3.130.0110.04912.66
5.3.120.0120.04712.66
5.3.110.0060.05312.66
5.3.100.0060.03712.11
5.3.90.0060.03612.10
5.3.80.0080.03512.09
5.3.70.0060.03612.09
5.3.60.0080.04512.08
5.3.50.0040.03712.02
5.3.40.0060.04112.03
5.3.30.0040.03611.98
5.3.20.0090.04311.76
5.3.10.0060.04211.73
5.3.00.0070.03411.71
5.2.170.0040.0319.22
5.2.160.0030.0309.22
5.2.150.0060.0349.22
5.2.140.0060.0409.21
5.2.130.0090.0389.18
5.2.120.0100.0349.18
5.2.110.0080.0359.19
5.2.100.0080.0369.18
5.2.90.0080.0379.17
5.2.80.0050.0319.17
5.2.70.0080.0289.17
5.2.60.0050.0319.13
5.2.50.0060.0299.10
5.2.40.0060.0299.07
5.2.30.0060.0289.04
5.2.20.0030.0319.03
5.2.10.0050.0288.94
5.2.00.0050.0358.80
5.1.60.0040.0258.09
5.1.50.0050.0248.08
5.1.40.0060.0258.07
5.1.30.0040.0308.41
5.1.20.0060.0408.44
5.1.10.0060.0358.16
5.1.00.0060.0358.16
5.0.50.0050.0296.64
5.0.40.0050.0286.50
5.0.30.0040.0326.31
5.0.20.0040.0196.28
5.0.10.0040.0216.26
5.0.00.0030.0406.25
4.4.90.0060.0194.78
4.4.80.0030.0224.75
4.4.70.0060.0184.75
4.4.60.0030.0214.75
4.4.50.0060.0184.77
4.4.40.0070.0294.71
4.4.30.0020.0234.76
4.4.20.0020.0174.84
4.4.10.0030.0164.85
4.4.00.0030.0254.75
4.3.110.0030.0164.66
4.3.100.0050.0204.66
4.3.90.0030.0154.64
4.3.80.0040.0314.58
4.3.70.0030.0154.63
4.3.60.0040.0184.62
4.3.50.0030.0164.63
4.3.40.0030.0324.54
4.3.30.0030.0163.30
4.3.20.0000.0193.28
4.3.10.0040.0193.24
4.3.00.0030.01715.62

preferences:
40.73 ms | 400 KiB | 5 Q