3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $p1 = "secret"; public function B() { ${'t' . 'his'} = 'hidden'; // works return $this . ' ' . $this->p1; } } $a = new A; echo $a->B();

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)
8.3.60.0090.00916.63
8.3.50.0160.00322.77
8.3.40.0130.00318.59
8.3.30.0070.00718.79
8.3.20.0040.00420.12
8.3.10.0040.00423.61
8.3.00.0000.00819.26
8.2.180.0090.00616.63
8.2.170.0070.00722.96
8.2.160.0100.00320.39
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00421.13
8.2.110.0060.00321.03
8.2.100.0090.00317.91
8.2.90.0040.00419.39
8.2.80.0030.00517.97
8.2.70.0070.00417.21
8.2.60.0120.00017.80
8.2.50.0030.00618.07
8.2.40.0040.00418.09
8.2.30.0000.00717.96
8.2.20.0040.00417.53
8.2.10.0000.00717.83
8.2.00.0000.00717.54
8.1.280.0100.00725.92
8.1.270.0060.00323.74
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0000.01020.68
8.1.230.0050.00520.93
8.1.220.0030.00617.74
8.1.210.0030.00518.92
8.1.200.0060.00317.23
8.1.190.0080.00017.25
8.1.180.0050.00318.10
8.1.170.0060.00618.45
8.1.160.0040.00421.95
8.1.150.0050.00318.77
8.1.140.0040.00417.36
8.1.130.0070.00017.83
8.1.120.0050.00317.47
8.1.110.0080.00017.32
8.1.100.0040.00417.46
8.1.90.0000.00817.40
8.1.80.0000.00817.44
8.1.70.0030.00517.37
8.1.60.0000.00917.59
8.1.50.0050.00317.52
8.1.40.0030.00617.46
8.1.30.0050.00317.56
8.1.20.0000.00817.61
8.1.10.0040.00417.53
8.1.00.0060.00317.43
8.0.300.0040.00420.09
8.0.290.0030.00616.75
8.0.280.0030.00318.35
8.0.270.0000.00717.16
8.0.260.0000.00617.16
8.0.250.0070.00017.04
8.0.240.0080.00016.95
8.0.230.0000.00717.06
8.0.220.0020.00516.86
8.0.210.0050.00316.99
8.0.200.0000.00816.90
8.0.190.0080.00317.00
8.0.180.0050.00217.02
8.0.170.0040.00416.89
8.0.160.0000.00716.91
8.0.150.0000.00816.95
8.0.140.0040.00416.86
8.0.130.0050.00013.45
8.0.120.0070.00016.91
8.0.110.0000.00716.99
8.0.100.0050.00317.02
8.0.90.0000.00717.01
8.0.80.0030.01316.89
8.0.70.0040.00416.76
8.0.60.0000.00916.99
8.0.50.0030.00516.80
8.0.30.0120.00817.02
8.0.20.0090.01017.40
8.0.10.0050.00516.91
8.0.00.0040.01816.82
7.4.330.0060.00015.14
7.4.320.0070.00016.59
7.4.300.0030.00316.61
7.4.290.0000.00716.51
7.4.280.0070.00016.55
7.4.270.0030.00316.57
7.4.260.0070.00016.43
7.4.250.0050.00316.57
7.4.240.0040.00416.53
7.4.230.0030.00316.39
7.4.220.0180.00616.61
7.4.210.0040.00916.70
7.4.200.0030.00516.71
7.4.160.0120.00616.59
7.4.150.0090.00917.40
7.4.140.0140.01017.86
7.4.130.0090.01116.62
7.4.120.0080.01216.58
7.4.110.0060.01116.66
7.4.100.0070.01016.50
7.4.90.0100.00716.40
7.4.80.0090.00919.39
7.4.70.0130.01016.55
7.4.60.0070.01016.57
7.4.50.0040.00016.71
7.4.40.0130.00316.49
7.4.30.0110.01116.58
7.4.00.0100.00614.93
7.3.330.0050.00013.38
7.3.320.0030.00313.37
7.3.310.0040.00416.27
7.3.300.0040.00416.23
7.3.290.0100.00416.42
7.3.280.0060.01016.36
7.3.270.0090.00917.40
7.3.260.0070.01016.43
7.3.250.0130.00716.49
7.3.240.0100.00716.30
7.3.230.0160.01016.47
7.3.210.0140.00316.35
7.3.200.0060.01219.39
7.3.190.0170.00716.41
7.3.180.0040.01516.50
7.3.170.0110.00416.48
7.3.160.0160.00016.38
7.3.120.0070.01014.88
7.3.110.0070.01014.59
7.3.100.0070.00714.83
7.3.90.0100.00714.97
7.3.80.0040.01114.70
7.3.70.0030.01014.80
7.3.60.0100.00614.76
7.3.50.0120.00314.87
7.3.40.0070.00714.73
7.3.30.0090.00614.72
7.3.20.0070.00316.68
7.3.10.0060.00916.55
7.3.00.0100.00316.58
7.2.330.0070.01116.39
7.2.320.0100.01016.38
7.2.310.0140.01016.67
7.2.300.0090.01216.30
7.2.290.0070.01516.68
7.2.250.0030.01715.12
7.2.240.0070.01114.75
7.2.230.0050.00515.12
7.2.220.0060.00314.84
7.2.210.0080.00814.96
7.2.200.0100.00314.77
7.2.190.0160.00015.08
7.2.180.0080.00814.90
7.2.170.0040.00814.98
7.2.60.0060.00616.40
7.2.00.0080.00819.31
7.1.330.0040.01115.72
7.1.320.0040.00915.44
7.1.310.0060.00715.84
7.1.300.0060.00915.45
7.1.290.0060.00615.62
7.1.280.0040.00715.41
7.1.270.0060.00315.56
7.1.260.0090.00315.33
7.1.200.0000.01115.79
7.1.100.0060.00618.25
7.1.70.0000.00716.85
7.1.60.0100.01419.40
7.1.50.0110.01416.82
7.1.00.0070.07322.30
7.0.200.0070.00016.78
7.0.140.0130.06322.15
7.0.60.0030.09019.93
7.0.50.0030.04317.91
7.0.40.0270.06320.18
7.0.30.0530.07320.16
7.0.20.0300.03720.02
7.0.10.0170.05320.16
7.0.00.0030.08320.30
5.6.280.0000.07321.07
5.6.210.0100.05020.76
5.6.200.0130.04718.18
5.6.190.0030.05320.60
5.6.180.3530.04720.67
5.6.170.0300.03720.48
5.6.160.0070.08320.61
5.6.150.0070.04318.15
5.6.140.0100.08018.14
5.6.130.0070.03718.21
5.6.120.0070.04321.02
5.6.110.0100.08321.01
5.6.100.0170.07721.01
5.6.90.0200.07320.97
5.6.80.0100.07020.57
5.5.350.0000.08720.45
5.5.340.0100.06717.95
5.5.330.0030.08720.40
5.5.320.0400.05720.28
5.5.310.0370.06720.30
5.5.300.0100.03317.98
5.5.290.0130.07717.99
5.5.280.0030.04720.98
5.5.270.0100.07720.95
5.5.260.0100.06720.98
5.5.250.0070.08020.61
5.5.240.3670.04020.24
5.4.450.0500.05719.60
5.4.440.0230.05019.43
5.4.430.0200.05319.34
5.4.420.0230.04719.28
5.4.410.0200.04719.52
5.4.400.0170.05319.00
5.4.390.0130.05719.05
5.4.380.0100.06318.47
5.4.370.0030.04318.71
5.4.360.0100.03718.59
5.4.350.0070.04912.02
5.4.340.0040.04112.01
5.4.320.0070.03612.50
5.4.310.0090.04112.50
5.4.300.0090.03612.50
5.4.290.0070.04712.49
5.4.280.0070.03312.40
5.4.270.0080.03712.39
5.4.260.0070.03612.39
5.4.250.0090.03412.39
5.4.240.0100.03312.39
5.4.230.0090.04212.39
5.4.220.0040.03912.39
5.4.210.0060.05112.39
5.4.200.0090.04112.39
5.4.190.0080.03612.39
5.4.180.0070.03412.38
5.4.170.0070.03512.39
5.4.160.0030.03812.39
5.4.150.0060.03512.39
5.4.140.0050.04012.07
5.4.130.0080.03912.06
5.4.120.0070.03912.02
5.4.110.0080.03712.02
5.4.100.0070.03412.01
5.4.90.0060.03812.01
5.4.80.0090.03312.02
5.4.70.0040.03512.01
5.4.60.0040.03712.01
5.4.50.0070.03312.00
5.4.40.0060.03412.00
5.4.30.0060.03612.00
5.4.20.0070.03511.99
5.4.10.0080.03111.99
5.4.00.0040.03711.48
5.3.290.0070.03912.80
5.3.280.0060.03812.70
5.3.270.0080.03712.72
5.3.260.0080.03712.72
5.3.250.0040.03912.72
5.3.240.0060.03812.72
5.3.230.0030.04612.71
5.3.220.0060.03912.68
5.3.210.0090.04412.68
5.3.200.0060.03712.68
5.3.190.0070.04312.68
5.3.180.0070.03612.67
5.3.170.0050.03712.67
5.3.160.0080.04412.67
5.3.150.0070.03612.68
5.3.140.0060.03712.66
5.3.130.0040.04112.66
5.3.120.0090.03812.65
5.3.110.0040.04212.66
5.3.100.0060.03812.12
5.3.90.0050.03712.10
5.3.80.0040.03812.09
5.3.70.0040.03812.09
5.3.60.0070.03512.07
5.3.50.0040.03812.02
5.3.40.0080.03712.02
5.3.30.0090.03711.98
5.3.20.0070.03611.76
5.3.10.0030.04011.72
5.3.00.0050.03611.71
5.2.170.0050.0299.22
5.2.160.0090.0309.22
5.2.150.0050.0319.22
5.2.140.0030.0329.22
5.2.130.0050.0309.18
5.2.120.0070.0309.18
5.2.110.0060.0359.18
5.2.100.0070.0269.17
5.2.90.0030.0309.18
5.2.80.0050.0329.17
5.2.70.0040.0319.17
5.2.60.0070.0329.13
5.2.50.0070.0339.09
5.2.40.0030.0329.07
5.2.30.0030.0319.05
5.2.20.0050.0339.04
5.2.10.0050.0288.94
5.2.00.0050.0298.80
5.1.60.0040.0248.09
5.1.50.0040.0278.08
5.1.40.0040.0258.07
5.1.30.0070.0238.41
5.1.20.0030.0288.44
5.1.10.0050.0278.16
5.1.00.0080.0328.16
5.0.50.0040.0206.64
5.0.40.0070.0216.50
5.0.30.0040.0336.32
5.0.20.0070.0226.27
5.0.10.0020.0216.25
5.0.00.0030.0316.24
4.4.90.0020.0204.77
4.4.80.0030.0154.75
4.4.70.0000.0184.76
4.4.60.0030.0214.75
4.4.50.0020.0204.77
4.4.40.0030.0254.71
4.4.30.0020.0174.75
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0030.0274.76
4.3.110.0060.0134.67
4.3.100.0020.0224.66
4.3.90.0030.0154.64
4.3.80.0040.0234.58
4.3.70.0020.0154.63
4.3.60.0050.0124.63
4.3.50.0030.0154.63
4.3.40.0040.0224.54
4.3.30.0000.0203.30
4.3.20.0000.0193.28
4.3.10.0040.0143.23
4.3.00.0070.0207.13

preferences:
41.29 ms | 401 KiB | 5 Q