3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(gc_enabled()); $objstore = new SplObjectStorage(); $a = new StdClass; $b = new StdClass; $c = new StdClass; $a->b = $b; $b->a = $a; $c->b = $b; $b->c = $c; $f = function() { $d = new StdClass; $e = new StdClass; $d->e = $e; $e->d = $d; }; var_dump(memory_get_usage()); $f(); var_dump(memory_get_usage()); $objstore->attach($a); $objstore->attach($b); $objstore->attach($c); var_dump(memory_get_usage()); gc_collect_cycles(); var_dump(memory_get_usage()); var_dump($objstore); print serialize($objstore);

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)
7.4.10.0090.00916.37
7.4.00.0030.01716.41
7.3.130.0030.01616.39
7.3.120.0090.00616.45
7.3.110.0110.00716.24
7.3.100.0070.01116.18
7.3.90.0040.00816.17
7.3.80.0120.00616.54
7.3.70.0030.01216.54
7.3.60.0060.00616.35
7.3.50.0070.01016.39
7.3.40.0090.00616.38
7.3.30.0070.00716.31
7.3.20.0030.00618.04
7.3.10.0130.00617.89
7.3.00.0070.01018.07
7.2.260.0130.00616.48
7.2.250.0000.01316.75
7.2.240.0040.00816.39
7.2.230.0070.01016.41
7.2.220.0100.00316.69
7.2.210.0070.01116.76
7.2.200.0100.00616.48
7.2.190.0030.00916.52
7.2.180.0030.01016.70
7.2.170.0150.00416.71
7.2.160.0030.01016.34
7.2.150.0070.01118.52
7.2.140.0040.01118.43
7.2.130.0030.01318.30
7.2.120.0070.00718.41
7.2.110.0080.00818.30
7.2.100.0160.00318.36
7.2.90.0000.01118.40
7.2.80.0040.01018.54
7.2.70.0100.01018.23
7.2.60.0040.01518.39
7.2.50.0080.00418.41
7.2.40.0130.00618.49
7.2.30.0040.00818.51
7.2.20.0030.01218.28
7.2.10.0060.00918.38
7.2.00.0070.00918.96
7.1.330.0070.00717.38
7.1.320.0030.01317.35
7.1.310.0060.01117.29
7.1.300.0150.00017.20
7.1.290.0150.00017.39
7.1.280.0000.01117.40
7.1.270.0040.00817.31
7.1.260.0040.01117.48
7.1.250.0060.00917.15
7.1.240.0070.00717.40
7.1.230.0070.01017.27
7.1.220.0120.00617.36
7.1.210.0110.00417.15
7.1.200.0060.00917.34
7.1.190.0100.00317.34
7.1.180.0080.00417.11
7.1.170.0030.00917.28
7.1.160.0000.01317.20
7.1.150.0060.00617.21
7.1.140.0080.00617.21
7.1.130.0160.00017.25
7.1.120.0130.00317.37
7.1.110.0000.01017.47
7.1.100.0110.00417.36
7.1.90.0090.00917.16
7.1.80.0070.01017.44
7.1.70.0020.00917.22
7.1.60.0080.01318.22
7.1.50.0050.00917.16
7.1.40.0100.00317.22
7.1.30.0060.00917.42
7.1.20.0060.01217.28
7.1.10.0040.01117.29
7.1.00.0050.02119.86
7.0.330.0090.00017.12
7.0.320.0000.01816.92
7.0.310.0030.01316.94
7.0.300.0090.00616.93
7.0.290.0100.00616.96
7.0.280.0080.00317.03
7.0.270.0090.00617.05
7.0.260.0060.00917.17
7.0.250.0090.00616.96
7.0.240.0030.01616.75
7.0.230.0030.00717.15
7.0.220.0060.00917.22
7.0.210.0040.01217.05
7.0.200.0050.00816.68
7.0.190.0090.00617.08
7.0.180.0040.01116.95
7.0.170.0110.00317.05
7.0.160.0030.00716.85
7.0.150.0030.01016.98
7.0.140.0050.04119.63
7.0.130.0110.00416.88
7.0.120.0120.00417.07
7.0.110.0110.00416.92
7.0.100.0170.02818.45
7.0.90.0200.04518.53
7.0.80.0080.04218.44
7.0.70.0050.03618.48
7.0.60.0120.04318.38
7.0.50.0080.03818.69
7.0.40.0090.04517.52
7.0.30.0080.04517.45
7.0.20.0150.04017.62
7.0.10.0050.04317.54
7.0.00.0070.03117.59
5.6.400.0070.01416.14
5.6.390.0060.00615.79
5.6.380.0060.00916.04
5.6.370.0130.00015.99
5.6.360.0090.00916.14
5.6.350.0030.01315.99
5.6.340.0150.00315.71
5.6.330.0090.00616.08
5.6.320.0070.01015.88
5.6.310.0100.00315.93
5.6.300.0090.00615.90
5.6.290.0070.00716.09
5.6.280.0050.04118.52
5.6.270.0000.01415.91
5.6.260.0120.00315.96
5.6.250.0040.04418.24
5.6.240.0110.04418.40
5.6.230.0080.05018.29
5.6.220.0050.04718.37
5.6.210.0070.03518.11
5.6.200.0150.03218.47
5.6.190.0110.04518.56
5.6.180.0060.05118.54
5.6.170.0050.04818.51
5.6.160.0050.03118.45
5.6.150.0050.04918.46
5.6.140.0110.03818.52
5.6.130.0050.05018.43
5.6.120.0090.03418.47
5.6.110.0090.04518.42
5.6.100.0080.02518.49
5.6.90.0070.04518.46
5.6.80.0080.04118.10
5.6.70.0080.04418.16
5.6.60.0050.04218.14
5.6.50.0030.04818.21
5.6.40.0050.04218.16
5.6.30.0060.03318.09
5.6.20.0120.04418.16
5.6.10.0090.04218.04
5.6.00.0090.04418.15
5.5.380.0000.04518.21
5.5.370.0110.04018.13
5.5.360.0080.04518.05
5.5.350.0080.04118.18
5.5.340.0020.05218.39
5.5.330.0120.04218.25
5.5.320.0080.04518.28
5.5.310.0090.04518.37
5.5.300.0130.02718.33
5.5.290.0100.04118.27
5.5.280.0080.04118.32
5.5.270.0100.04218.40
5.5.260.0050.05318.33
5.5.250.0080.02318.21
5.5.240.0100.03818.05
5.5.230.0090.04118.06
5.5.220.0150.03318.04
5.5.210.0100.04717.94
5.5.200.0090.04018.02
5.5.190.0100.04518.07
5.5.180.0130.02817.99
5.5.170.0100.00315.77
5.5.160.0070.04417.97
5.5.150.0080.03817.80
5.5.140.0050.04518.04
5.5.130.0060.03617.95
5.5.120.0140.04018.04
5.5.110.0090.03918.05
5.5.100.0100.04417.86
5.5.90.0050.04217.93
5.5.80.0020.04517.91
5.5.70.0100.04418.00
5.5.60.0110.03817.81
5.5.50.0050.04417.74
5.5.40.0060.04117.96
5.5.30.0070.04218.01
5.5.20.0130.01717.94
5.5.10.0100.04217.83
5.5.00.0120.04217.96
5.4.450.0070.02516.03
5.4.440.0030.04315.98
5.4.430.0080.04316.11
5.4.420.0030.04016.06
5.4.410.0090.02616.06
5.4.400.0070.03615.75
5.4.390.0070.04215.74
5.4.380.0020.03815.79
5.4.370.0110.03515.77
5.4.360.0050.03315.87
5.4.350.0100.04015.74
5.4.340.0100.03815.87
5.4.330.0090.00412.69
5.4.320.0110.03815.86
5.4.310.0030.03015.85
5.4.300.0070.04015.68
5.4.290.0040.04715.75
5.4.280.0200.01715.90
5.4.270.0050.03915.73
5.4.260.0020.05415.88
5.4.250.0050.04515.90
5.4.240.0050.04415.75
5.4.230.0100.04015.87
5.4.220.0040.02715.84
5.4.210.0020.03715.91
5.4.200.0050.04115.93
5.4.190.0070.03615.93
5.4.180.0030.04515.90
5.4.170.0080.02415.87
5.4.160.0060.04315.70
5.4.150.0080.03915.83
5.4.140.0040.03914.47
5.4.130.0080.03614.43
5.4.120.0050.04314.43
5.4.110.0030.03914.56
5.4.100.0080.04014.63
5.4.90.0090.02114.50
5.4.80.0030.02614.41
5.4.70.0050.04214.53
5.4.60.0050.03114.53
5.4.50.0020.02614.38
5.4.40.0120.01814.61
5.4.30.0050.02314.58
5.4.20.0050.02314.56
5.4.10.0040.02314.47
5.4.00.0060.02114.27
5.3.290.0050.04613.93
5.3.280.0100.03613.80
5.3.270.0060.03113.87
5.3.260.0050.03913.78
5.3.250.0050.03913.86
5.3.240.0020.04613.79
5.3.230.0050.04013.86
5.3.220.0020.04213.75
5.3.210.0030.03713.74
5.3.200.0100.03313.77
5.3.190.0050.04113.77
5.3.180.0090.04113.79
5.3.170.0080.03813.89
5.3.160.0050.02313.78
5.3.150.0030.02913.86
5.3.140.0040.02213.81
5.3.130.0030.02413.86
5.3.120.0020.02213.73
5.3.110.0100.02913.73
5.3.100.0020.02413.47
5.3.90.0030.02613.54
5.3.80.0020.04013.52
5.3.70.0050.03513.43
5.3.60.0030.04313.56
5.3.50.0070.02213.38
5.3.40.0030.02513.48
5.3.30.0050.03713.53
5.3.20.0060.02013.40
5.3.10.0080.01613.15
5.3.00.0070.02113.29
5.2.170.0030.02712.25
5.2.160.0030.06012.25
5.2.150.0070.05312.25
5.2.140.0100.04712.25
5.2.130.0000.03012.25
5.2.120.0070.03712.25
5.2.110.0000.03012.25
5.2.100.0070.02712.25
5.2.90.0030.03312.25
5.2.80.0030.03012.25
5.2.70.0030.02712.25
5.2.60.0000.03712.25
5.2.50.0000.03312.25
5.2.40.0000.03312.25
5.2.30.0030.02712.25
5.2.20.0000.03712.25
5.2.10.0000.03012.25
5.2.00.0070.02312.25
5.1.60.0030.02312.25
5.1.50.0030.02312.25
5.1.40.0070.02312.25
5.1.30.0070.02312.25
5.1.20.0000.02712.25
5.1.10.0000.02712.25
5.1.00.0000.03712.25
5.0.50.0030.01712.25
5.0.40.0000.02012.25
5.0.30.0000.04312.25
5.0.20.0030.01712.25
5.0.10.0030.01712.25
5.0.00.0030.03012.25
4.4.90.0000.02012.25
4.4.80.0070.01012.25
4.4.70.0000.01712.25
4.4.60.0000.01712.25
4.4.50.0000.01712.25
4.4.40.0030.02312.25
4.4.30.0000.01712.25
4.4.20.0030.01312.25
4.4.10.0000.01712.25
4.4.00.0030.02312.25
4.3.110.0000.01712.25
4.3.100.0000.02312.25
4.3.90.0000.01312.25
4.3.80.0000.02712.25
4.3.70.0000.01312.25
4.3.60.0000.01312.25
4.3.50.0030.01312.25
4.3.40.0000.02712.25
4.3.30.0000.01712.25
4.3.20.0000.02012.25
4.3.10.0000.01712.25
4.3.00.0000.02312.25

preferences:
35.17 ms | 401 KiB | 5 Q