3v4l.org

run code in 300+ PHP versions simultaneously
similar behaviour applies to the static statement. References are not stored statically: <?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)) { // Assign the object to the static variable $obj = new stdclass; $property=2; } $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)
5.6.280.0100.06721.08
5.6.220.0070.08720.62
5.6.210.0070.08020.65
5.6.200.0100.08321.18
5.6.190.0100.06021.18
5.6.180.0030.06021.02
5.6.170.0000.08721.07
5.6.160.0100.06721.05
5.6.150.0070.04320.98
5.6.140.0070.08721.08
5.6.130.0130.08021.06
5.6.120.0070.08721.09
5.6.110.0100.07721.02
5.6.100.0070.08321.13
5.6.90.0100.08321.09
5.6.80.0000.08720.41
5.6.70.0030.08720.49
5.6.60.0170.03320.43
5.6.50.0100.08020.35
5.6.40.0000.06320.50
5.6.30.0000.05020.37
5.6.20.0070.08720.39
5.6.10.0130.07320.43
5.6.00.0030.05020.30
5.5.360.0070.06020.55
5.5.350.0070.08020.49
5.5.340.0030.06020.88
5.5.330.0070.07020.90
5.5.320.0170.05320.91
5.5.310.0070.08020.93
5.5.300.0030.05320.84
5.5.290.0030.08320.79
5.5.280.0170.07320.86
5.5.270.0070.04720.80
5.5.260.0030.07720.92
5.5.250.0100.08020.60
5.5.240.0000.07320.25
5.5.230.0100.08020.16
5.5.220.0070.05320.14
5.5.210.0030.08020.18
5.5.200.0130.07020.16
5.5.190.0000.09020.27
5.5.180.0070.08020.25
5.5.160.0030.04320.25
5.5.150.0030.07720.00
5.5.140.0100.06720.09
5.5.130.0000.07320.16
5.5.120.0100.07320.00
5.5.110.0030.04320.11
5.5.100.0000.05720.10
5.5.90.0070.04020.08
5.5.80.0070.07720.17
5.5.70.0130.06320.09
5.5.60.0070.05320.00
5.5.50.0100.05020.12
5.5.40.0070.07320.09
5.5.30.0100.04319.94
5.5.20.0030.03720.06
5.5.10.0070.08020.04
5.5.00.0000.08020.08
5.4.450.0070.05019.30
5.4.440.0100.08019.38
5.4.430.0130.06319.53
5.4.420.0130.07719.28
5.4.410.0000.08019.38
5.4.400.0100.07719.04
5.4.390.0070.08019.13
5.4.380.0070.07319.03
5.4.370.0070.07719.09
5.4.360.0100.07018.90
5.4.350.0030.04319.21
5.4.340.0070.08318.88
5.4.320.0030.07719.03
5.4.310.0030.03719.23
5.4.300.0000.08019.04
5.4.290.0000.06319.03
5.4.280.0030.03718.87
5.4.270.0100.06718.85
5.4.260.0070.06019.12
5.4.250.0000.06719.20
5.4.240.0030.07019.05
5.4.230.0030.05019.20
5.4.220.0030.08019.20
5.4.210.0070.03318.94
5.4.200.0030.08019.12
5.4.190.0000.07319.02
5.4.180.0030.03719.04
5.4.170.0030.04719.04
5.4.160.0030.07319.21
5.4.150.0030.03719.03
5.4.140.0000.03716.35
5.4.130.0070.07016.41
5.4.120.0030.04016.45
5.4.110.0100.07316.38
5.4.100.0070.04316.38
5.4.90.0100.07016.54
5.4.80.0070.07716.47
5.4.70.0070.06716.40
5.4.60.0030.07316.46
5.4.50.0070.07016.38
5.4.40.0030.07316.53
5.4.30.0100.07016.30
5.4.20.0070.07016.24
5.4.10.0070.04716.48
5.4.00.0030.04715.73
5.3.290.0070.07314.77
5.3.280.0030.04014.53
5.3.270.0030.07714.51
5.3.260.0030.07014.61
5.3.250.0030.05314.60
5.3.240.0000.05314.56
5.3.230.0030.05714.52
5.3.220.0030.08014.52
5.3.210.0000.08014.68
5.3.200.0030.06014.61
5.3.190.0030.07714.63
5.3.180.0070.06314.52
5.3.170.0100.07314.50
5.3.160.0030.07314.49
5.3.150.0170.05714.68
5.3.140.0070.05714.55
5.3.130.0000.06014.66
5.3.120.0100.07314.69
5.3.110.0070.05314.61
5.3.100.0070.04313.97
5.3.90.0030.07013.99
5.3.80.0070.07314.16
5.3.70.0030.07314.03
5.3.60.0030.06013.99
5.3.50.0000.07313.89
5.3.40.0070.07013.88
5.3.30.0030.04714.02
5.3.20.0070.04013.58
5.3.10.0130.07013.72
5.3.00.0100.05713.65
5.2.170.0070.05711.29
5.2.160.0000.06011.07
5.2.150.0000.04311.08
5.2.140.0030.05711.24
5.2.130.0000.04011.13
5.2.120.0030.04311.03
5.2.110.0030.05311.11
5.2.100.0030.06010.99
5.2.90.0030.05711.01
5.2.80.0000.04711.12
5.2.70.0030.04011.15
5.2.60.0070.05711.12
5.2.50.0030.05011.05
5.2.40.0030.06310.91
5.2.30.0000.06010.88
5.2.20.0030.06310.92
5.2.10.0070.05710.80
5.2.00.0030.06010.82
5.1.60.0000.05310.42
5.1.50.0070.03310.42
5.1.40.0030.03710.42
5.1.30.0000.05710.45
5.1.20.0070.04710.43
5.1.10.0000.05710.42
5.1.00.0030.05310.42
5.0.50.0030.04710.42
5.0.40.0030.04310.42
5.0.30.0030.06310.42
5.0.20.0000.04010.42
5.0.10.0030.04310.42
5.0.00.0000.05010.42
4.4.90.0030.02710.42
4.4.80.0000.03710.42
4.4.70.0000.04010.42
4.4.60.0030.02710.42
4.4.50.0030.03310.42
4.4.40.0000.04010.42
4.4.30.0000.03010.42
4.4.20.0000.03710.42
4.4.10.0000.04010.42
4.4.00.0000.04310.42
4.3.110.0000.03710.42
4.3.100.0000.03710.42
4.3.90.0000.03710.42
4.3.80.0000.05310.42
4.3.70.0000.03710.42
4.3.60.0030.02710.42
4.3.50.0000.02310.42
4.3.40.0030.04710.42
4.3.30.0000.04010.42
4.3.20.0070.03010.42
4.3.10.0100.03010.42
4.3.00.0000.03710.42

preferences:
143.02 ms | 1398 KiB | 7 Q