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)
5.6.280.0070.07021.03
5.6.210.0100.06320.54
5.6.200.0100.07718.15
5.6.190.0130.06720.67
5.6.180.0500.07320.48
5.6.170.0330.03020.51
5.6.160.0100.03720.44
5.6.150.0070.04318.16
5.6.140.0100.04718.17
5.6.130.0070.07318.25
5.6.120.0100.09721.14
5.6.110.0130.08320.92
5.6.100.0000.04320.99
5.6.90.0100.08020.99
5.6.80.0030.06020.51
5.5.350.0070.06320.31
5.5.340.0030.08018.08
5.5.330.0100.08020.32
5.5.320.0430.08320.24
5.5.310.0230.04020.24
5.5.300.0000.04018.09
5.5.290.0030.08017.99
5.5.280.0000.04320.86
5.5.270.0100.07720.66
5.5.260.0200.07320.88
5.5.250.0100.03720.72
5.5.240.0270.05320.27
5.4.450.0170.07019.48
5.4.440.0070.05019.57
5.4.430.0100.07719.30
5.4.420.0100.06319.19
5.4.410.0030.06019.44
5.4.400.0070.04018.88
5.4.390.0100.07718.98
5.4.380.0030.04318.84
5.4.370.0130.04319.08
5.4.360.0100.07719.12
5.4.350.0070.07719.01
5.4.340.0070.04319.08
5.4.320.0070.04319.00
5.4.310.0100.07319.15
5.4.300.0130.07019.14
5.4.290.0170.05318.85
5.4.280.0070.07018.87
5.4.270.0130.06719.24
5.4.260.0030.05719.18
5.4.250.0070.04319.09
5.4.240.0100.06719.23
5.4.230.0100.04319.23
5.4.220.0070.04718.91
5.4.210.0100.06319.18
5.4.200.0030.08018.97
5.4.190.0130.03719.23
5.4.180.0100.04018.86
5.4.170.0200.07019.00
5.4.160.0070.05319.24
5.4.150.0100.07319.13
5.4.140.0170.06716.56
5.4.130.0070.03716.45
5.4.120.0030.04016.38
5.4.110.0000.06016.58
5.4.100.0170.06016.39
5.4.90.0070.07016.46
5.4.80.0030.06316.46
5.4.70.0170.06016.46
5.4.60.0100.07016.43
5.4.50.0070.07016.41
5.4.40.0100.06716.27
5.4.30.0100.07316.39
5.4.20.0070.07316.46
5.4.10.0000.07016.27
5.4.00.0070.07315.75
5.3.290.0070.06714.56
5.3.280.0070.04714.62
5.3.270.0070.04714.67
5.3.260.0070.05014.63
5.3.250.0100.06714.61
5.3.240.0030.06014.64
5.3.230.0100.06314.77
5.3.220.0100.03714.46
5.3.210.0030.05014.57
5.3.200.0130.05714.59
5.3.190.0000.07314.59
5.3.180.0100.06714.57
5.3.170.0100.07714.60
5.3.160.0030.06714.72
5.3.150.0030.04714.61
5.3.140.0130.07014.48
5.3.130.0170.06714.55
5.3.120.0100.05014.45
5.3.110.0100.06714.57
5.3.100.0000.08014.09
5.3.90.0170.06014.10
5.3.80.0000.05014.08
5.3.70.0000.04014.03
5.3.60.0200.05714.06
5.3.50.0070.04013.85
5.3.40.0030.04713.96
5.3.30.0070.04313.80
5.3.20.0070.05013.77
5.3.10.0100.07013.73
5.3.00.0070.07013.68
5.2.170.0030.05311.06
5.2.160.0070.04311.05
5.2.150.0070.06011.21
5.2.140.0100.05711.07
5.2.130.0070.05711.06
5.2.120.0070.04311.17
5.2.110.0070.05711.18
5.2.100.0130.05311.03
5.2.90.0100.06011.07
5.2.80.0030.05711.06
5.2.70.0170.05011.09
5.2.60.0030.03711.05
5.2.50.0070.04311.09
5.2.40.0070.05310.89
5.2.30.0000.04010.98
5.2.20.0000.06711.04
5.2.10.0000.06010.93
5.2.00.0000.06710.68
5.1.60.0070.03310.07
5.1.50.0070.03310.07
5.1.40.0030.03710.02
5.1.30.0030.05010.38
5.1.20.0030.02710.37
5.1.10.0070.04710.12
5.1.00.0100.02010.10
5.0.50.0000.0478.57
5.0.40.0000.0408.33
5.0.30.0070.0638.25
5.0.20.0000.0478.22
5.0.10.0070.0438.20
5.0.00.0000.0478.14
4.4.90.0070.0308.04
4.4.80.0070.0338.04
4.4.70.0070.0378.04
4.4.60.0100.0278.04
4.4.50.0000.0308.04
4.4.40.0000.0608.04
4.4.30.0000.0338.04
4.4.20.0000.0378.04
4.4.10.0070.0108.04
4.4.00.0070.0438.04
4.3.110.0030.0238.04
4.3.100.0030.0278.04
4.3.90.0000.0208.04
4.3.80.0000.0278.04
4.3.70.0000.0408.04
4.3.60.0000.0208.04
4.3.50.0000.0278.04
4.3.40.0000.0308.04
4.3.30.0030.0208.04
4.3.20.0070.0278.04
4.3.10.0000.0278.04
4.3.00.0000.0338.04

preferences:
142.11 ms | 1386 KiB | 7 Q