3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &get_instance_ref() { static $obj; $property ='a'; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign a reference to the static variable $obj = &new stdclass; } $obj->property++; return $obj; } function &get_instance_noref() { static $obj; $property='a'; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign the object to the static variable $obj = new stdclass; } $obj->property++; echo $property; return $obj; } $obj1 = get_instance_ref(); $still_obj1 = get_instance_ref(); echo "\n"; $obj2 = get_instance_noref(); $still_obj2 = 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)
5.6.280.0070.07020.87
5.6.250.0030.03720.76
5.6.240.0000.07320.76
5.6.230.0070.08720.66
5.6.220.0070.07320.62
5.6.210.0130.08320.46
5.6.200.0100.08721.10
5.6.190.0030.09021.04
5.6.180.0130.06321.04
5.6.170.0070.08321.01
5.6.160.0070.05020.97
5.6.150.0100.05021.07
5.6.140.0200.03721.08
5.6.130.0070.08721.01
5.6.120.0170.04021.18
5.6.110.0130.06321.00
5.6.100.0130.04020.95
5.6.90.0130.04321.01
5.6.80.0170.07320.48
5.6.70.0200.06020.32
5.6.60.0100.07020.46
5.6.50.0100.04320.38
5.6.40.0070.07320.30
5.6.30.0030.05020.41
5.6.20.0000.06720.41
5.6.10.0100.04320.29
5.6.00.0000.05020.31
5.5.380.0200.05320.36
5.5.370.0070.08720.45
5.5.360.0070.05320.48
5.5.350.0070.05020.38
5.5.340.0130.04320.78
5.5.330.0130.07020.89
5.5.320.0170.07720.89
5.5.310.0070.06720.92
5.5.300.0130.06720.83
5.5.290.0100.05720.76
5.5.280.0000.09020.90
5.5.270.0130.06720.79
5.5.260.0070.05320.86
5.5.250.0070.07320.66
5.5.240.0170.04720.20
5.5.230.0070.05020.28
5.5.220.0070.08020.26
5.5.210.0070.06720.28
5.5.200.0170.07020.28
5.5.190.0100.06320.18
5.5.180.0130.06720.21
5.5.160.0100.05020.24
5.5.150.0070.07720.13
5.5.140.0130.07720.21
5.5.130.0100.07020.24
5.5.120.0100.06720.16
5.5.110.0070.07320.25
5.5.100.0030.06019.95
5.5.90.0100.06319.98
5.5.80.0030.04320.16
5.5.70.0100.07720.12
5.5.60.0100.06719.96
5.5.50.0130.07020.16
5.5.40.0100.07720.06
5.5.30.0070.05320.05
5.5.20.0070.08020.04
5.5.10.0070.04719.98
5.5.00.0100.07020.07
5.4.450.0130.07319.42
5.4.440.0030.07719.36
5.4.430.0070.08319.17
5.4.420.0070.08019.44
5.4.410.0070.06719.43
5.4.400.0000.05319.05
5.4.390.0070.07319.14
5.4.380.0170.05019.14
5.4.370.0100.07719.17
5.4.360.0030.08019.11
5.4.350.0030.05019.23
5.4.340.0070.04719.13
5.4.320.0100.07018.89
5.4.310.0070.08019.22
5.4.300.0030.06719.23
5.4.290.0130.06018.88
5.4.280.0100.07318.90
5.4.270.0030.06719.04
5.4.260.0100.04018.87
5.4.250.0030.07719.08
5.4.240.0070.07719.02
5.4.230.0070.07019.22
5.4.220.0100.07019.17
5.4.210.0100.04318.91
5.4.200.0000.08019.02
5.4.190.0070.07719.00
5.4.180.0030.05019.15
5.4.170.0070.08019.15
5.4.160.0070.03719.01
5.4.150.0170.06719.14
5.4.140.0070.04316.31
5.4.130.0030.07016.48
5.4.120.0170.05016.50
5.4.110.0030.06316.53
5.4.100.0100.05316.32
5.4.90.0030.06316.56
5.4.80.0030.07716.55
5.4.70.0100.06316.55
5.4.60.0030.04316.30
5.4.50.0130.06316.45
5.4.40.0100.06316.39
5.4.30.0100.03316.36
5.4.20.0030.05016.41
5.4.10.0070.06016.44
5.4.00.0030.03715.86
5.3.290.0130.05714.66
5.3.280.0130.03314.63
5.3.270.0070.04314.64
5.3.260.0000.05014.51
5.3.250.0030.06314.73
5.3.240.0170.06314.77
5.3.230.0070.04314.59
5.3.220.0030.07714.67
5.3.210.0170.06714.64
5.3.200.0030.07714.68
5.3.190.0030.04714.59
5.3.180.0100.07314.59
5.3.170.0100.05714.60
5.3.160.0130.03014.65
5.3.150.0100.06314.66
5.3.140.0100.06014.53
5.3.130.0070.05714.60
5.3.120.0070.03714.54
5.3.110.0070.07714.56
5.3.100.0000.07014.04
5.3.90.0100.04013.97
5.3.80.0070.06713.95
5.3.70.0070.05014.14
5.3.60.0000.03713.94
5.3.50.0100.07013.88
5.3.40.0100.07013.97
5.3.30.0070.07313.91
5.3.20.0130.06013.69
5.3.10.0100.07013.66
5.3.00.0130.06713.58
5.2.170.0100.05711.73
5.2.160.0030.02711.73
5.2.150.0000.03011.73
5.2.140.0030.06011.73
5.2.130.0100.03311.73
5.2.120.0070.05011.73
5.2.110.0030.05711.73
5.2.100.0030.04011.73
5.2.90.0070.05011.73
5.2.80.0070.04011.73
5.2.70.0070.06011.73
5.2.60.0100.06011.73
5.2.50.0070.06011.73
5.2.40.0070.05311.73
5.2.30.0070.06011.73
5.2.20.0100.02711.73
5.2.10.0030.05311.73
5.2.00.0070.05711.73
5.1.60.0030.03311.73
5.1.50.0070.03311.73
5.1.40.0030.03311.73
5.1.30.0030.05711.73
5.1.20.0030.05711.73
5.1.10.0130.04711.73
5.1.00.0070.04311.73
5.0.50.0000.03311.73
5.0.40.0100.03311.73
5.0.30.0000.06711.73
5.0.20.0030.04311.73
5.0.10.0000.04011.73
5.0.00.0030.05311.73
4.4.90.0000.03311.73
4.4.80.0000.02011.73
4.4.70.0030.03311.73
4.4.60.0070.03311.73
4.4.50.0100.02711.73
4.4.40.0000.03011.73
4.4.30.0100.03011.73
4.4.20.0000.04011.73
4.4.10.0030.03011.73
4.4.00.0070.04711.73
4.3.110.0000.03711.73
4.3.100.0000.04011.73
4.3.90.0000.02011.73
4.3.80.0030.03011.73
4.3.70.0030.01311.73
4.3.60.0070.02711.73
4.3.50.0000.03311.73
4.3.40.0030.04711.73
4.3.30.0070.02711.73
4.3.20.0030.01711.73
4.3.10.0070.01311.73
4.3.00.0070.03311.73

preferences:
143.66 ms | 1394 KiB | 7 Q