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; global $property; $property=3; $obj->property=2; echo "aa".$property; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign the object to the static variable $obj = new stdclass; echo "aa".$property; } $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)
5.6.280.0070.07021.07
5.6.260.0070.07021.06
5.6.250.0030.06721.09
5.6.240.0070.07021.03
5.6.230.0000.08021.10
5.6.220.0030.07321.07
5.6.210.0030.07020.96
5.6.200.0070.06020.84
5.6.190.0030.07721.04
5.6.180.0100.05320.84
5.6.170.0000.06321.04
5.6.160.0070.07021.09
5.6.150.0070.07020.85
5.6.140.0000.08020.93
5.6.130.0070.07020.95
5.6.120.0000.07721.05
5.6.110.0070.07320.82
5.6.100.0030.07021.00
5.6.90.0000.06720.93
5.6.80.0000.07320.31
5.6.70.0070.05720.43
5.6.60.0000.06720.44
5.6.50.0030.05320.14
5.6.40.0000.07320.28
5.6.30.0030.07320.12
5.6.20.0070.07020.16
5.6.10.0030.07020.19
5.6.00.0000.07320.42
5.5.380.0000.07317.57
5.5.370.0100.06317.56
5.5.360.0000.07717.51
5.5.350.0030.07017.58
5.5.340.0030.07317.93
5.5.330.0030.07318.23
5.5.320.0000.07318.23
5.5.310.0130.06318.12
5.5.300.0070.06717.95
5.5.290.0030.07317.83
5.5.280.0070.07018.13
5.5.270.0000.07718.12
5.5.260.0030.07717.93
5.5.250.0070.07017.65
5.5.240.0070.06717.34
5.5.230.0070.06017.43
5.5.220.0030.07017.47
5.5.210.0030.07017.61
5.5.200.0030.07017.31
5.5.190.0000.06717.26
5.5.180.0030.06717.45
5.5.160.0030.06017.48
5.5.150.0070.06317.29
5.5.140.0070.05717.19
5.5.130.0070.06317.48
5.5.120.0030.07017.42
5.5.110.0100.06317.58
5.5.100.0030.05017.33
5.5.90.0030.06317.30
5.5.80.0030.06717.32
5.5.70.0130.06017.17
5.5.60.0030.06717.33
5.5.50.0000.07017.17
5.5.40.0030.05717.47
5.5.30.0030.06717.29
5.5.20.0070.06717.46
5.5.10.0000.07017.16
5.5.00.0000.06317.07
5.4.450.0070.07019.33
5.4.440.0070.07019.66
5.4.430.0030.07319.32
5.4.420.0000.07319.33
5.4.410.0000.07019.42
5.4.400.0030.06719.16
5.4.390.0000.07319.19
5.4.380.0030.07018.96
5.4.370.0030.06719.30
5.4.360.0030.06719.11
5.4.350.0030.06718.99
5.4.340.0070.05718.99
5.4.320.0000.07319.33
5.4.310.0070.06319.00
5.4.300.0130.05719.32
5.4.290.0000.07319.00
5.4.280.0030.07019.16
5.4.270.0000.07018.99
5.4.260.0000.06719.17
5.4.250.0000.07018.99
5.4.240.0070.06019.17
5.4.230.0030.06719.00
5.4.220.0000.07319.32
5.4.210.0100.06019.20
5.4.200.0100.05718.99
5.4.190.0000.07019.10
5.4.180.0030.06719.14
5.4.170.0030.07019.13
5.4.160.0030.05719.29
5.4.150.0030.07019.00
5.4.140.0030.05316.40
5.4.130.0000.06716.34
5.4.120.0000.06716.52
5.4.110.0000.07016.61
5.4.100.0000.06716.58
5.4.90.0000.06716.55
5.4.80.0000.06716.50
5.4.70.0100.05716.34
5.4.60.0070.06016.44
5.4.50.0100.05716.47
5.4.40.0000.06716.52
5.4.30.0000.06716.43
5.4.20.0000.06316.62
5.4.10.0070.06316.53
5.4.00.0000.06715.75
5.3.290.0070.06314.67
5.3.280.0030.06714.63
5.3.270.0070.05714.70
5.3.260.0030.07014.74
5.3.250.0000.07014.66
5.3.240.0070.06314.59
5.3.230.0000.07014.74
5.3.220.0000.07014.71
5.3.210.0030.06714.59
5.3.200.0000.06714.54
5.3.190.0030.06714.66
5.3.180.0070.06014.42
5.3.170.0000.06714.57
5.3.160.0030.06714.55
5.3.150.0070.06314.54
5.3.140.0000.06714.52
5.3.130.0030.07014.70
5.3.120.0070.06714.56
5.3.110.0030.07014.68
5.3.100.0000.06714.25
5.3.90.0030.06714.25
5.3.80.0030.06014.25
5.3.70.0030.06714.25
5.3.60.0000.06714.25
5.3.50.0030.06314.25
5.3.40.0030.06714.25
5.3.30.0000.06714.25
5.3.20.0000.05714.25
5.3.10.0000.06314.25
5.3.00.0100.06014.25
5.2.170.0030.05314.25
5.2.160.0000.04714.25
5.2.150.0030.05314.25
5.2.140.0070.05014.25
5.2.130.0030.05314.25
5.2.120.0070.05014.25
5.2.110.0030.05014.25
5.2.100.0070.05014.25
5.2.90.0000.05314.25
5.2.80.0030.05714.25
5.2.70.0100.05014.25
5.2.60.0000.05714.25
5.2.50.0000.05714.25
5.2.40.0030.05314.25
5.2.30.0030.05714.25
5.2.20.0030.05314.25
5.2.10.0000.05314.25
5.2.00.0030.05314.25
5.1.60.0000.04714.25
5.1.50.0000.04714.25
5.1.40.0000.04714.25
5.1.30.0000.04314.25
5.1.20.0030.04314.25
5.1.10.0030.04714.25
5.1.00.0030.04014.25
5.0.50.0030.03714.25
5.0.40.0000.04014.25
5.0.30.0030.05714.25
5.0.20.0070.03314.25
5.0.10.0030.03714.25
5.0.00.0000.06014.25
4.4.90.0000.03314.25
4.4.80.0000.03014.25
4.4.70.0030.03014.25
4.4.60.0000.03014.25
4.4.50.0000.03014.25
4.4.40.0000.05014.25
4.4.30.0000.03014.25
4.4.20.0000.03314.25
4.4.10.0030.02714.25
4.4.00.0030.03714.25
4.3.110.0000.03014.25
4.3.100.0000.03014.25
4.3.90.0030.02714.25
4.3.80.0000.04714.25
4.3.70.0000.03014.25
4.3.60.0000.03014.25
4.3.50.0070.02714.25
4.3.40.0000.04714.25
4.3.30.0000.03314.25
4.3.20.0030.03014.25
4.3.10.0000.03014.25
4.3.00.0030.02314.25

preferences:
152.29 ms | 1394 KiB | 7 Q