3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait Singleton { public static function getInstance(){ static $counter = 0; static $instance = null; if (!isset($instance)) { $instance = new static(); } $counter++; return $instance; } } abstract class Abudabia { use Singleton; } class a1 extends Abudabia { public function set() { return 'allah ahbar'; } } class a2 extends Abudabia { public function get() { return 'algazira'; } } $a = a1::getInstance(); $b = a2::getInstance(); $a = a1::getInstance(); $b = a2::getInstance(); $a = a1::getInstance(); $b = a2::getInstance(); var_dump($a->counter,$b->counter);

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)
8.3.70.0110.00816.63
8.3.60.0140.00018.68
8.3.50.0110.00921.10
8.3.40.0090.00918.89
8.3.30.0150.00019.27
8.3.20.0070.00320.16
8.3.10.0030.00523.52
8.3.00.0060.00617.59
8.2.180.0070.00716.63
8.2.170.0070.00722.96
8.2.160.0110.00720.35
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00422.23
8.2.110.0030.00620.38
8.2.100.0030.00918.09
8.2.90.0000.00719.05
8.2.80.0040.00417.97
8.2.70.0030.00617.50
8.2.60.0070.00317.91
8.2.50.0040.00418.07
8.2.40.0030.00519.78
8.2.30.0030.00618.16
8.2.20.0070.00017.83
8.2.10.0000.00818.19
8.2.00.0000.00817.65
8.1.280.0070.01425.92
8.1.270.0030.00522.10
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0040.00423.96
8.1.230.0070.00419.16
8.1.220.0000.00817.76
8.1.210.0030.00618.77
8.1.200.0030.00617.35
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0040.00418.66
8.1.160.0000.00721.95
8.1.150.0000.00818.95
8.1.140.0040.00417.43
8.1.130.0000.00717.77
8.1.120.0030.00517.33
8.1.110.0030.00517.45
8.1.100.0000.00717.38
8.1.90.0040.00417.48
8.1.80.0030.00317.34
8.1.70.0000.00817.36
8.1.60.0080.00017.51
8.1.50.0040.00417.43
8.1.40.0000.01117.55
8.1.30.0000.00917.68
8.1.20.0040.00417.57
8.1.10.0040.00417.64
8.1.00.0040.00417.55
8.0.300.0030.00618.77
8.0.290.0050.00316.88
8.0.280.0000.00718.38
8.0.270.0040.00417.30
8.0.260.0070.00017.37
8.0.250.0000.00717.10
8.0.240.0000.00816.94
8.0.230.0000.00717.03
8.0.220.0030.00316.88
8.0.210.0000.00716.86
8.0.200.0000.00717.09
8.0.190.0040.00417.01
8.0.180.0050.00216.91
8.0.170.0080.00016.96
8.0.160.0000.00716.96
8.0.150.0000.00716.97
8.0.140.0020.00516.97
8.0.130.0060.00013.39
8.0.120.0030.00616.93
8.0.110.0040.00416.80
8.0.100.0030.00316.84
8.0.90.0070.00016.90
8.0.80.0030.01316.97
8.0.70.0040.00416.88
8.0.60.0040.00416.88
8.0.50.0000.00716.79
8.0.30.0070.01517.13
8.0.20.0130.01017.40
8.0.10.0040.00417.12
8.0.00.0100.00816.83
7.4.330.0050.00015.16
7.4.320.0000.00616.65
7.4.300.0060.00016.65
7.4.290.0000.00716.52
7.4.280.0070.00016.45
7.4.270.0030.00316.42
7.4.260.0030.00316.50
7.4.250.0070.00016.50
7.4.240.0050.00216.53
7.4.230.0000.00716.57
7.4.220.0100.00716.72
7.4.210.0130.00616.69
7.4.200.0050.00216.34
7.4.160.0070.01716.60
7.4.150.0200.00317.40
7.4.140.0080.01017.86
7.4.130.0120.00816.49
7.4.120.0090.01216.58
7.4.110.0110.00816.49
7.4.100.0120.00416.64
7.4.90.0100.00716.61
7.4.80.0040.01319.39
7.4.70.0030.01416.33
7.4.60.0060.00916.45
7.4.50.0040.00016.47
7.4.40.0130.00316.50
7.4.30.0080.00816.61
7.4.00.0060.00615.22
7.3.330.0030.00313.27
7.3.320.0050.00013.23
7.3.310.0000.00716.26
7.3.300.0030.00316.38
7.3.290.0000.01416.43
7.3.280.0050.01016.41
7.3.270.0030.01517.40
7.3.260.0030.01516.47
7.3.250.0110.01016.39
7.3.240.0060.00916.46
7.3.230.0120.00316.45
7.3.210.0070.01016.23
7.3.200.0030.01319.39
7.3.190.0060.01116.59
7.3.180.0130.00616.57
7.3.170.0130.00316.40
7.3.160.0050.01116.55
7.2.330.0070.01116.79
7.2.320.0130.00316.81
7.2.310.0150.00316.75
7.2.300.0090.00816.82
7.2.290.0070.01516.55
7.2.00.0060.00619.11
7.1.200.0040.00415.63
7.1.100.0000.01217.78
7.1.70.0050.00317.08
7.1.60.0110.01119.32
7.1.50.0100.00516.80
7.1.00.0070.07322.51
7.0.200.0060.00316.79
7.0.140.0030.07322.08
7.0.60.0100.08319.82
7.0.50.0030.04317.89
7.0.40.0030.08720.25
7.0.30.0400.07320.31
7.0.20.0100.05020.22
7.0.10.0030.04320.09
7.0.00.0100.05720.30
5.6.280.0070.07320.82
5.6.210.0200.07320.63
5.6.200.0070.04718.18
5.6.190.0100.06020.61
5.6.180.0370.04020.48
5.6.170.0200.03720.51
5.6.160.0000.05720.57
5.6.150.0030.08318.25
5.6.140.0100.07018.27
5.6.130.0000.04318.16
5.6.120.0130.07320.79
5.6.110.0130.08021.14
5.6.100.0130.07021.02
5.6.90.0100.04721.13
5.6.80.0170.05320.48
5.5.350.0130.08320.48
5.5.340.0030.04317.95
5.5.330.0130.07020.47
5.5.320.0100.04320.36
5.5.310.0300.07720.34
5.5.300.0130.04018.08
5.5.290.0130.06017.94
5.5.280.0070.08320.89
5.5.270.0030.05020.83
5.5.260.0030.04320.89
5.5.250.0030.05020.48
5.5.240.0130.08020.16
5.4.450.0230.04019.31
5.4.440.0470.04019.63
5.4.430.0570.03719.27
5.4.420.0670.00019.40
5.4.410.0630.00019.28
5.4.400.0630.00019.33
5.4.390.0600.00019.02
5.4.380.0730.00019.06
5.4.370.0630.00019.13
5.4.360.0670.00019.06
5.4.350.0670.00019.26
5.4.340.0080.03212.02
5.4.320.0100.04212.51
5.4.310.0100.04012.50
5.4.300.0060.03812.51
5.4.290.0060.04212.50
5.4.280.0030.03712.40
5.4.270.0040.03812.40
5.4.260.0040.03812.40
5.4.250.0050.03712.40
5.4.240.0040.04412.40
5.4.230.0070.03512.39
5.4.220.0060.03412.39
5.4.210.0080.03812.39
5.4.200.0080.04012.39
5.4.190.0070.03412.39
5.4.180.0060.03512.39
5.4.170.0040.03912.39
5.4.160.0080.03312.39
5.4.150.0080.03712.39
5.4.140.0080.03812.07
5.4.130.0050.04012.06
5.4.120.0070.03412.02
5.4.110.0070.03412.02
5.4.100.0040.03712.01
5.4.90.0060.03812.01
5.4.80.0060.03712.02
5.4.70.0080.03412.02
5.4.60.0090.03712.01
5.4.50.0110.04012.01
5.4.40.0080.03712.00
5.4.30.0070.05112.00
5.4.20.0080.03612.00
5.4.10.0050.03812.00
5.4.00.0040.03911.49
5.3.290.0050.04212.80
5.3.280.0070.03812.71
5.3.270.0040.04012.72
5.3.260.0080.03612.72
5.3.250.0040.04412.72
5.3.240.0070.03512.71
5.3.230.0070.03712.71
5.3.220.0080.03512.68
5.3.210.0080.03712.68
5.3.200.0080.03812.68
5.3.190.0070.03612.68
5.3.180.0080.03412.68
5.3.170.0080.03412.67
5.3.160.0050.03812.67
5.3.150.0040.04112.68
5.3.140.0030.03912.66
5.3.130.0020.04212.66
5.3.120.0130.04312.66
5.3.110.0080.04012.66
5.3.100.0030.03912.12
5.3.90.0040.04012.08
5.3.80.0050.03812.08
5.3.70.0080.03412.07
5.3.60.0060.03512.06
5.3.50.0060.03512.00
5.3.40.0060.03512.00
5.3.30.0090.03611.95
5.3.20.0060.03411.73
5.3.10.0050.03411.70
5.3.00.0060.03511.68
5.2.170.0060.0289.18
5.2.160.0030.0309.18
5.2.150.0050.0319.18
5.2.140.0040.0329.18
5.2.130.0070.0349.14
5.2.120.0070.0309.14
5.2.110.0050.0309.15
5.2.100.0070.0329.14
5.2.90.0080.0359.14
5.2.80.0030.0329.14
5.2.70.0030.0329.14
5.2.60.0050.0339.09
5.2.50.0050.0309.06
5.2.40.0080.0279.04
5.2.30.0090.0259.02
5.2.20.0020.0359.00
5.2.10.0090.0298.92
5.2.00.0040.0348.78
5.1.60.0050.0248.07
5.1.50.0040.0308.06
5.1.40.0040.0248.05
5.1.30.0050.0268.40
5.1.20.0050.0278.42
5.1.10.0060.0278.14
5.1.00.0040.0288.14
5.0.50.0020.0216.62
5.0.40.0060.0166.48
5.0.30.0030.0346.29
5.0.20.0040.0216.27
5.0.10.0040.0186.25
5.0.00.0040.0296.23
4.4.90.0040.0144.78
4.4.80.0020.0154.76
4.4.70.0060.0124.75
4.4.60.0020.0154.76
4.4.50.0050.0194.77
4.4.40.0020.0274.70
4.4.30.0020.0164.76
4.4.20.0030.0154.85
4.4.10.0030.0154.85
4.4.00.0050.0234.76
4.3.110.0020.0164.67
4.3.100.0010.0164.66
4.3.90.0020.0154.63
4.3.80.0040.0234.58
4.3.70.0040.0144.63
4.3.60.0010.0164.63
4.3.50.0000.0194.63
4.3.40.0020.0254.54
4.3.30.0000.0173.28
4.3.20.0040.0143.26
4.3.10.0020.0153.22
4.3.00.0170.01710.38

preferences:
41.9 ms | 401 KiB | 5 Q