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(){ $this->a; 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)
8.3.60.0070.00716.75
8.3.50.0170.00317.70
8.3.40.0120.00318.64
8.3.30.0110.00418.85
8.3.20.0090.00618.78
8.3.10.0060.00620.66
8.3.00.0040.00419.38
8.2.180.0140.00418.14
8.2.170.0140.00022.96
8.2.160.0090.00621.02
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0080.00020.89
8.2.110.0060.00321.05
8.2.100.0040.00717.72
8.2.90.0000.00719.08
8.2.80.0040.00419.32
8.2.70.0060.00317.63
8.2.60.0060.00318.03
8.2.50.0040.00418.07
8.2.40.0040.00418.03
8.2.30.0040.00417.91
8.2.20.0030.00517.78
8.2.10.0000.00817.88
8.2.00.0070.00417.85
8.1.280.0090.00925.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0080.00321.90
8.1.230.0080.00420.79
8.1.220.0040.00418.77
8.1.210.0040.00419.10
8.1.200.0040.00817.13
8.1.190.0040.00417.53
8.1.180.0030.00618.10
8.1.170.0000.00718.87
8.1.160.0080.00018.93
8.1.150.0040.00418.68
8.1.140.0040.00417.39
8.1.130.0000.00717.87
8.1.120.0060.00317.47
8.1.110.0000.00717.49
8.1.100.0050.00217.48
8.1.90.0040.00417.46
8.1.80.0030.00317.34
8.1.70.0070.00017.44
8.1.60.0100.00017.46
8.1.50.0030.00617.44
8.1.40.0060.00317.42
8.1.30.0000.00717.54
8.1.20.0000.00817.65
8.1.10.0040.00417.57
8.1.00.0000.00717.53
8.0.300.0000.00920.03
8.0.290.0000.00716.88
8.0.280.0020.00518.36
8.0.270.0050.00317.28
8.0.260.0040.00416.94
8.0.250.0050.00217.01
8.0.240.0040.00416.93
8.0.230.0000.00717.02
8.0.220.0000.00716.83
8.0.210.0000.00716.89
8.0.200.0060.00016.98
8.0.190.0000.00716.88
8.0.180.0040.00416.82
8.0.170.0060.00316.85
8.0.160.0030.00317.05
8.0.150.0030.00616.75
8.0.140.0090.00316.96
8.0.130.0000.00513.33
8.0.120.0030.00516.91
8.0.110.0000.00816.84
8.0.100.0040.00416.99
8.0.90.0040.00416.91
8.0.80.0060.00916.91
8.0.70.0050.00217.02
8.0.60.0040.00416.82
8.0.50.0040.00416.99
8.0.30.0140.00617.00
8.0.20.0100.00916.96
8.0.10.0040.00416.95
8.0.00.0070.01116.80
7.4.330.0000.00512.93
7.4.320.0000.00716.59
7.4.300.0000.00816.50
7.4.290.0000.00616.59
7.4.280.0070.00016.56
7.4.270.0040.00416.64
7.4.260.0000.00513.23
7.4.250.0030.00616.44
7.4.240.0040.00416.61
7.4.230.0000.00716.38
7.4.220.0160.00716.59
7.4.210.0100.00616.56
7.4.200.0040.00416.58
7.4.190.0040.00416.47
7.4.160.0120.00816.56
7.4.150.0070.01116.40
7.4.140.0070.01116.46
7.4.130.0100.00616.59
7.4.120.0070.01216.52
7.4.110.0070.01116.61
7.4.100.0080.00816.52
7.4.90.0120.00816.63
7.4.80.0090.01319.39
7.4.70.0120.00916.49
7.4.60.0090.00616.51
7.4.50.0130.00016.35
7.4.40.0100.00316.41
7.4.30.0100.00716.57
7.4.00.0100.00715.02
7.3.330.0000.00613.25
7.3.320.0030.00313.39
7.3.310.0030.00316.39
7.3.300.0030.00316.30
7.3.290.0090.00616.44
7.3.280.0110.00416.44
7.3.270.0070.01016.44
7.3.260.0060.01216.51
7.3.250.0090.00916.45
7.3.240.0060.01116.59
7.3.230.0100.00716.64
7.3.210.0130.01016.44
7.3.200.0030.01716.59
7.3.190.0120.00816.49
7.3.180.0090.00616.44
7.3.170.0110.00916.45
7.3.160.0120.00416.70
7.3.120.0100.00315.08
7.3.10.0120.00816.62
7.3.00.0110.00816.44
7.2.330.0140.00316.58
7.2.320.0140.00316.68
7.2.310.0090.00916.80
7.2.300.0070.01416.46
7.2.290.0080.00916.75
7.2.130.0060.01116.93
7.2.120.0150.01016.56
7.2.110.0070.00716.82
7.2.100.0150.00316.69
7.2.90.0080.00916.58
7.2.80.0050.01016.78
7.2.70.0090.00916.64
7.2.60.0040.01016.82
7.2.50.0090.00916.67
7.2.40.0100.00616.72
7.2.30.0090.00416.92
7.2.20.0060.00716.87
7.2.10.0030.01316.74
7.2.00.0040.00817.47
7.1.250.0110.00615.47
7.1.240.0130.00315.72
7.1.230.0030.00715.64
7.1.220.0100.00315.86
7.1.210.0030.01215.77
7.1.200.0030.00715.79
7.1.190.0060.00915.75
7.1.180.0070.00715.72
7.1.170.0080.00415.75
7.1.160.0100.00715.48
7.1.150.0000.01115.80
7.1.140.0030.01015.86
7.1.130.0060.00315.68
7.1.120.0060.00916.00
7.1.110.0000.00915.86
7.1.100.0070.00516.82
7.1.90.0130.00315.83
7.1.80.0090.00315.67
7.1.70.0020.01016.38
7.1.60.0120.01017.57
7.1.50.0090.01016.27
7.1.40.0100.00715.69
7.1.30.0090.00715.77
7.1.20.0080.00315.79
7.1.10.0070.01015.52
7.1.00.0070.03219.01
7.0.330.0100.00715.16
7.0.320.0040.00415.05
7.0.310.0000.01215.49
7.0.300.0150.00415.33
7.0.290.0050.00515.36
7.0.280.0070.00715.26
7.0.270.0060.00315.45
7.0.260.0040.00415.30
7.0.250.0150.00015.34
7.0.240.0000.01315.45
7.0.230.0070.01115.25
7.0.220.0150.00215.12
7.0.210.0050.00915.28
7.0.200.0140.00515.04
7.0.190.0070.00915.25
7.0.180.0150.00615.21
7.0.170.0070.00715.39
7.0.160.0080.00515.32
7.0.150.0160.00015.24
7.0.140.0110.03318.73
7.0.130.0100.00715.31
7.0.120.0050.04318.78
7.0.110.0100.00315.33
7.0.100.0120.00815.40
7.0.90.0120.00815.34
7.0.80.0110.00315.34
7.0.70.0070.01115.10
7.0.60.0100.02617.58
7.0.50.0080.03816.68
7.0.40.0070.04016.76
7.0.30.0120.03116.80
7.0.20.0120.04716.77
7.0.10.0160.04016.70
7.0.00.0120.03816.72
5.6.380.0040.01114.38
5.6.370.0070.00414.16
5.6.360.0080.00314.24
5.6.350.0040.00814.25
5.6.340.0070.00314.08
5.6.330.0040.01113.96
5.6.320.0120.00014.34
5.6.310.0050.00914.11
5.6.300.0090.00314.40
5.6.290.0040.00813.95
5.6.280.0030.01014.01
5.6.270.0060.00614.23
5.6.260.0060.00614.12
5.6.250.0070.00714.00
5.6.240.0100.00314.20
5.6.230.0000.00914.30
5.6.220.0070.00713.99
5.6.210.0060.03517.44
5.6.200.0070.04616.19
5.6.190.0150.03317.35
5.6.180.0200.03817.18
5.6.170.0140.03017.17
5.6.160.0090.04017.40
5.6.150.0030.04016.34
5.6.140.0050.03516.18
5.6.130.0050.03116.33
5.6.120.0110.02917.67
5.6.110.0070.04217.82
5.6.100.0060.03517.77
5.6.90.0020.05017.69
5.6.80.0110.03817.30
5.6.70.0180.03517.31
5.6.60.0060.00613.98
5.6.50.0030.00614.05
5.6.40.0060.00614.24
5.6.30.0000.01114.38
5.6.20.0030.01014.35
5.6.10.0030.01014.39
5.6.00.0040.01114.28
5.5.380.0030.00711.03
5.5.370.0030.00611.05
5.5.360.0030.00311.07
5.5.350.0150.04415.67
5.5.340.0040.04414.44
5.5.330.0070.04115.97
5.5.320.0140.04015.69
5.5.310.0200.03415.56
5.5.300.0070.04214.64
5.5.290.0050.04114.44
5.5.280.0020.04315.88
5.5.270.0050.03315.92
5.5.260.0100.04515.97
5.5.250.0040.02415.81
5.5.240.0000.04215.60
5.5.230.0030.00310.90
5.5.220.0050.00510.90
5.5.210.0030.00711.03
5.5.200.0090.00010.90
5.5.190.0040.00411.08
5.5.180.0030.00310.90
5.5.170.0060.00310.98
5.5.160.0030.00311.29
5.5.150.0060.00311.07
5.5.140.0050.00210.90
5.5.130.0060.00311.14
5.5.120.0060.00310.90
5.5.110.0000.00711.07
5.5.100.0000.00511.06
5.5.90.0040.00411.17
5.5.80.0030.00510.93
5.5.70.0040.00710.91
5.5.60.0000.01011.16
5.5.50.0080.00011.16
5.5.40.0040.00411.24
5.5.30.0000.00811.16
5.5.20.0090.00010.90
5.5.10.0060.00310.95
5.5.00.0070.00011.03
5.4.450.0180.03615.18
5.4.440.0140.02115.18
5.4.430.0180.03715.24
5.4.420.0130.03815.20
5.4.410.0130.02215.15
5.4.400.0150.03015.02
5.4.390.0150.02815.12
5.4.380.0160.03714.97
5.4.370.0150.02615.15
5.4.360.0150.02515.13
5.4.350.0230.03314.88
5.4.340.0180.03515.06
5.4.330.0040.00410.99
5.4.320.0130.02915.16
5.4.310.0170.03515.05
5.4.300.0210.03214.97
5.4.290.0150.02914.86
5.4.280.0140.03615.03
5.4.270.0140.02715.03
5.4.260.0170.03715.07
5.4.250.0200.03515.17
5.4.240.0170.01714.94
5.4.230.0130.01814.99
5.4.220.0170.03414.90
5.4.210.0130.04015.08
5.4.200.0110.02915.17
5.4.190.0170.03914.98
5.4.180.0150.03914.95
5.4.170.0230.02915.06
5.4.160.0170.03215.05
5.4.150.0180.03814.97
5.4.140.0190.03513.73
5.4.130.0190.03213.66
5.4.120.0170.02513.62
5.4.110.0180.03513.73
5.4.100.0150.02213.75
5.4.90.0140.03513.78
5.4.80.0130.02613.70
5.4.70.0160.03613.84
5.4.60.0180.03313.62
5.4.50.0180.02513.57
5.4.40.0200.03313.67
5.4.30.0130.03613.71
5.4.20.0200.03213.83
5.4.10.0130.02913.67
5.4.00.0150.03113.32
5.3.290.0180.03912.74
5.3.280.0130.02312.79
5.3.270.0110.04012.71
5.3.260.0170.03812.74
5.3.250.0180.02512.71
5.3.240.0220.03212.86
5.3.230.0210.03012.79
5.3.220.0130.04012.76
5.3.210.0150.02012.82
5.3.200.0100.03412.74
5.3.190.0180.02512.71
5.3.180.0120.04112.77
5.3.170.0150.02012.73
5.3.160.0120.03812.81
5.3.150.0190.03512.74
5.3.140.0150.03712.73
5.3.130.0180.03912.75
5.3.120.0100.02412.67
5.3.110.0150.02812.78
5.3.100.0170.03112.52
5.3.90.0120.02512.50
5.3.80.0160.02412.49
5.3.70.0130.02312.41
5.3.60.0150.03712.50
5.3.50.0260.02912.37
5.3.40.0180.02412.41
5.3.30.0120.02012.52
5.3.20.0150.03712.35
5.3.10.0120.04012.21
5.3.00.0170.03012.38
5.2.170.0110.02111.52
5.2.160.0150.02711.52
5.2.150.0130.01511.52
5.2.140.0120.02711.52
5.2.130.0120.02011.52
5.2.120.0110.01811.52
5.2.110.0130.02311.52
5.2.100.0120.02711.52
5.2.90.0130.02011.52
5.2.80.0170.02611.52
5.2.70.0150.01811.52
5.2.60.0150.02311.52
5.2.50.0130.03311.52
5.2.40.0150.02411.52
5.2.30.0150.02811.52
5.2.20.0180.02311.52
5.2.10.0100.01811.52
5.2.00.0100.01911.52
5.1.60.0080.02811.52
5.1.50.0100.01811.52
5.1.40.0100.01611.52
5.1.30.0130.02611.52
5.1.20.0120.02111.52
5.1.10.0130.01811.52
5.1.00.0100.01311.52
5.0.50.0080.01011.52
5.0.40.0080.01011.52
5.0.30.0070.02811.52
5.0.20.0070.02211.52
5.0.10.0080.01611.52
5.0.00.0030.03711.52
4.4.90.0030.01011.52
4.4.80.0050.01011.52
4.4.70.0030.01411.52
4.4.60.0090.00811.52
4.4.50.0070.01011.52
4.4.40.0080.02011.52
4.4.30.0060.01811.52
4.4.20.0080.01311.52
4.4.10.0050.00811.52
4.4.00.0030.01511.52
4.3.110.0070.01911.52
4.3.100.0050.01711.52
4.3.90.0020.02011.52
4.3.80.0030.02011.52
4.3.70.0070.00911.52
4.3.60.0070.00811.52
4.3.50.0060.01811.52
4.3.40.0030.01811.52
4.3.30.0020.02111.52
4.3.20.0040.01511.52
4.3.10.0070.01811.52
4.3.00.0020.01611.52

preferences:
49 ms | 401 KiB | 5 Q