3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &get_instance_ref() { static $obj; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign a reference to the static variable $obj = &new stdclass; } $obj->property++; return $obj; } function &get_instance_noref() { static $obj; echo 'Static object: '; var_dump($obj); if (!isset($obj)) {class dcl {public $property=2;} // Assign the object to the static variable $obj = new dcl; } $obj->property++; return $obj; } $obj1 = get_instance_ref(); $still_obj1 = get_instance_ref(); echo "\n"; $obj2 = get_instance_noref(); $still_obj2 = get_instance_noref(); $still_obj3 = get_instance_noref(); ?>

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)
5.6.280.0070.07020.90
5.6.220.0070.07020.66
5.6.210.0070.05320.65
5.6.200.0070.08321.02
5.6.190.0100.04021.04
5.6.180.0030.08721.05
5.6.170.0070.08321.03
5.6.160.0070.08721.06
5.6.150.0070.08021.07
5.6.140.0030.04721.11
5.6.130.0070.04020.96
5.6.120.0070.07321.09
5.6.110.0030.09020.96
5.6.100.0100.08021.10
5.6.90.0030.08320.92
5.6.80.0000.08020.56
5.6.70.0100.08020.42
5.6.60.0000.04320.41
5.6.50.0000.08320.41
5.6.40.0070.08020.45
5.6.30.0030.05020.41
5.6.20.0070.07020.45
5.6.10.0000.08320.39
5.6.00.0000.08320.40
5.5.360.0030.07020.57
5.5.350.0070.08320.46
5.5.340.0030.06720.85
5.5.330.0030.08720.84
5.5.320.0030.05720.94
5.5.310.0170.07320.88
5.5.300.0000.08720.63
5.5.290.0000.07320.89
5.5.280.0100.08020.74
5.5.270.0000.06720.84
5.5.260.0030.08720.91
5.5.250.0000.08320.55
5.5.240.0070.07320.32
5.5.230.0030.06020.12
5.5.220.0070.07720.24
5.5.210.0100.05320.19
5.5.200.0000.06020.27
5.5.190.0030.05020.28
5.5.180.0070.05320.29
5.5.160.0100.07020.15
5.5.150.0100.07720.24
5.5.140.0070.08020.24
5.5.130.0100.08020.25
5.5.120.0070.07320.28
5.5.110.0030.07719.99
5.5.100.0070.06020.08
5.5.90.0100.04720.17
5.5.80.0000.07720.12
5.5.70.0100.07320.01
5.5.60.0030.04020.06
5.5.50.0000.06720.11
5.5.40.0070.04020.16
5.5.30.0000.08020.04
5.5.20.0070.03720.00
5.5.10.0100.05020.03
5.5.00.0130.04020.04
5.4.450.0030.05319.54
5.4.440.0030.07019.56
5.4.430.0030.07319.22
5.4.420.0030.08019.50
5.4.410.0070.07319.36
5.4.400.0100.05018.91
5.4.390.0000.06319.05
5.4.380.0130.07019.13
5.4.370.0070.07018.88
5.4.360.0130.06019.13
5.4.350.0000.07319.14
5.4.340.0030.07719.10
5.4.320.0070.07019.13
5.4.310.0100.07018.91
5.4.300.0030.05019.14
5.4.290.0000.08319.02
5.4.280.0030.05719.09
5.4.270.0000.07718.85
5.4.260.0100.07019.22
5.4.250.0030.06319.04
5.4.240.0030.08019.23
5.4.230.0070.07019.19
5.4.220.0030.05719.04
5.4.210.0000.05318.86
5.4.200.0070.03319.09
5.4.190.0030.03719.02
5.4.180.0030.03719.17
5.4.170.0070.07319.02
5.4.160.0000.04019.02
5.4.150.0070.03719.03
5.4.140.0030.03316.47
5.4.130.0030.03716.46
5.4.120.0000.06016.38
5.4.110.0000.04016.32
5.4.100.0070.03016.48
5.4.90.0000.04016.40
5.4.80.0030.05716.38
5.4.70.0070.03016.31
5.4.60.0000.03716.47
5.4.50.0070.03016.36
5.4.40.0030.05316.45
5.4.30.0000.04016.36
5.4.20.0030.04316.33
5.4.10.0000.04316.36
5.4.00.0030.03315.80
5.3.290.0030.08014.64
5.3.280.0030.07714.56
5.3.270.0000.07714.70
5.3.260.0030.03714.62
5.3.250.0000.03714.57
5.3.240.0000.04014.55
5.3.230.0000.05314.74
5.3.220.0000.03714.69
5.3.210.0100.05714.68
5.3.200.0000.06014.68
5.3.190.0030.03714.59
5.3.180.0000.04014.56
5.3.170.0000.04014.59
5.3.160.0030.04714.67
5.3.150.0030.04314.59
5.3.140.0030.03714.67
5.3.130.0030.03714.65
5.3.120.0030.06714.54
5.3.110.0030.04014.61
5.3.100.0070.03714.14
5.3.90.0130.02314.01
5.3.80.0030.03314.14
5.3.70.0070.03014.12
5.3.60.0030.06014.10
5.3.50.0070.03314.01
5.3.40.0170.02013.88
5.3.30.0000.03713.82
5.3.20.0000.03713.68
5.3.10.0030.03013.58
5.3.00.0000.04013.59
5.2.170.0000.04712.22
5.2.160.0000.03012.22
5.2.150.0030.02712.22
5.2.140.0000.03012.22
5.2.130.0000.03012.22
5.2.120.0070.02312.22
5.2.110.0030.02312.22
5.2.100.0030.05012.22
5.2.90.0030.02712.22
5.2.80.0030.03712.22
5.2.70.0000.03012.22
5.2.60.0000.03312.22
5.2.50.0070.02312.22
5.2.40.0030.03312.22
5.2.30.0000.03312.22
5.2.20.0000.03712.22
5.2.10.0000.03012.22
5.2.00.0030.03312.22
5.1.60.0000.02312.22
5.1.50.0070.02312.22
5.1.40.0030.02712.22
5.1.30.0030.03312.22
5.1.20.0030.02312.22
5.1.10.0000.02712.22
5.1.00.0000.02712.22
5.0.50.0000.02012.22
5.0.40.0000.02012.22
5.0.30.0030.02712.22
5.0.20.0000.02012.22
5.0.10.0000.03012.22
5.0.00.0000.07012.22
4.4.90.0000.01712.22
4.4.80.0000.01312.22
4.4.70.0000.01312.22
4.4.60.0000.02012.22
4.4.50.0000.01312.22
4.4.40.0000.04312.22
4.4.30.0000.01712.22
4.4.20.0030.01312.22
4.4.10.0000.01712.22
4.4.00.0000.02312.22
4.3.110.0030.01712.22
4.3.100.0100.01712.22
4.3.90.0030.01312.22
4.3.80.0000.05312.22
4.3.70.0000.03712.22
4.3.60.0070.02312.22
4.3.50.0000.03012.22
4.3.40.0030.05012.22
4.3.30.0030.03012.22
4.3.20.0030.03312.22
4.3.10.0000.03712.22
4.3.00.0000.03712.22

preferences:
138.16 ms | 1386 KiB | 7 Q