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)) { // Assign the object to the static variable $obj = new stdclass; } $obj->property++; return $obj; } ?>

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)
5.6.280.0000.07321.13
5.6.250.0070.08720.66
5.6.240.0130.08020.67
5.6.230.0070.08020.66
5.6.220.0030.08320.67
5.6.210.0170.07320.71
5.6.200.0100.08721.23
5.6.190.0170.04320.97
5.6.180.0030.08721.14
5.6.170.0270.06320.95
5.6.160.0100.04721.27
5.6.150.0000.09020.99
5.6.140.0100.07721.21
5.6.130.0000.08021.06
5.6.120.0070.06321.27
5.6.110.0100.08021.08
5.6.100.0030.08321.11
5.6.90.0130.07321.06
5.6.80.0070.08020.53
5.6.70.0030.07320.57
5.6.60.0130.07320.59
5.6.50.0070.08320.66
5.6.40.0000.06720.51
5.6.30.0070.08020.39
5.6.20.0030.07720.44
5.6.10.0130.03720.50
5.6.00.0130.06720.44
5.5.380.0100.07320.37
5.5.370.0100.07720.59
5.5.360.0070.09020.54
5.5.350.0130.06020.46
5.5.340.0030.08020.75
5.5.330.0130.07020.95
5.5.320.0070.08020.91
5.5.310.0000.08020.93
5.5.300.0200.07320.96
5.5.290.0100.08720.68
5.5.280.0100.08020.81
5.5.270.0030.04720.84
5.5.260.0130.04320.81
5.5.250.0130.07720.71
5.5.240.0100.04720.30
5.5.230.0000.05320.42
5.5.220.0070.07720.19
5.5.210.0000.06320.27
5.5.200.0130.07320.25
5.5.190.0070.08020.38
5.5.180.0100.07320.26
5.5.160.0130.06320.33
5.5.150.0070.08320.17
5.5.140.0100.08020.22
5.5.130.0030.05020.32
5.5.120.0100.06720.37
5.5.110.0030.07720.30
5.5.100.0030.04720.01
5.5.90.0030.07020.05
5.5.80.0070.07020.00
5.5.70.0070.08020.07
5.5.60.0100.06320.18
5.5.50.0100.04720.24
5.5.40.0100.07020.25
5.5.30.0030.08720.07
5.5.20.0030.08320.25
5.5.10.0030.04720.16
5.5.00.0030.04020.22
5.4.450.0100.07319.34
5.4.440.0100.07019.67
5.4.430.0070.06719.64
5.4.420.0100.07019.46
5.4.410.0100.05019.18
5.4.400.0100.07718.96
5.4.390.0070.07019.04
5.4.380.0130.07018.98
5.4.370.0070.07719.01
5.4.360.0100.07019.01
5.4.350.0070.07719.14
5.4.340.0000.08019.24
5.4.320.0030.08019.20
5.4.310.0030.07318.95
5.4.300.0070.05719.18
5.4.290.0100.06719.17
5.4.280.0130.06319.18
5.4.270.0030.05018.96
5.4.260.0070.06719.04
5.4.250.0030.06019.17
5.4.240.0170.07019.01
5.4.230.0070.07719.30
5.4.220.0100.06719.01
5.4.210.0100.04319.01
5.4.200.0030.06019.17
5.4.190.0130.07318.99
5.4.180.0070.06719.23
5.4.170.0100.03019.15
5.4.160.0030.04018.97
5.4.150.0070.06318.98
5.4.140.0100.03316.41
5.4.130.0070.03716.37
5.4.120.0070.03716.49
5.4.110.0030.03716.55
5.4.100.0000.03716.42
5.4.90.0100.04016.37
5.4.80.0000.03716.63
5.4.70.0000.04016.35
5.4.60.0030.05016.48
5.4.50.0030.06716.48
5.4.40.0030.03716.44
5.4.30.0070.03716.33
5.4.20.0100.03016.47
5.4.10.0100.03016.48
5.4.00.0000.04715.74
5.3.290.0100.07714.69
5.3.280.0130.07014.61
5.3.270.0000.05014.62
5.3.260.0100.03314.65
5.3.250.0030.03714.61
5.3.240.0000.04014.74
5.3.230.0030.04314.64
5.3.220.0000.04014.43
5.3.210.0000.04014.57
5.3.200.0000.04314.57
5.3.190.0100.03014.60
5.3.180.0100.04714.69
5.3.170.0000.04014.71
5.3.160.0030.03714.71
5.3.150.0000.05314.58
5.3.140.0030.05314.42
5.3.130.0070.07714.56
5.3.120.0000.04014.56
5.3.110.0030.05314.58
5.3.100.0000.04014.05
5.3.90.0030.04314.06
5.3.80.0070.03314.09
5.3.70.0030.06014.02
5.3.60.0000.05313.86
5.3.50.0070.03013.99
5.3.40.0030.03713.82
5.3.30.0030.04313.91
5.3.20.0030.05713.66
5.3.10.0000.06313.69
5.3.00.0070.03313.77
5.2.170.0000.04311.23
5.2.160.0000.03011.14
5.2.150.0030.06311.10
5.2.140.0030.06711.13
5.2.130.0000.04011.24
5.2.120.0000.03711.19
5.2.110.0100.04311.11
5.2.100.0070.05011.13
5.2.90.0030.05011.11
5.2.80.0070.03311.23
5.2.70.0000.03011.18
5.2.60.0000.03011.19
5.2.50.0030.03711.11
5.2.40.0030.03011.05
5.2.30.0030.02710.98
5.2.20.0100.03011.04
5.2.10.0000.03010.96
5.2.00.0030.02710.95
5.1.60.0000.02710.27
5.1.50.0000.02710.27
5.1.40.0000.02310.27
5.1.30.0030.02310.33
5.1.20.0030.02310.32
5.1.10.0000.03010.27
5.1.00.0030.02310.27
5.0.50.0070.01310.27
5.0.40.0000.03710.27
5.0.30.0000.03710.27
5.0.20.0030.03710.27
5.0.10.0030.02010.27
5.0.00.0030.03010.27
4.4.90.0000.01710.27
4.4.80.0030.01310.27
4.4.70.0000.01710.27
4.4.60.0030.01310.27
4.4.50.0000.01710.27
4.4.40.0000.02710.27
4.4.30.0000.01710.27
4.4.20.0030.01310.27
4.4.10.0000.01710.27
4.4.00.0030.02310.27
4.3.110.0030.01010.27
4.3.100.0000.01310.27
4.3.90.0000.01710.27
4.3.80.0070.05010.27
4.3.70.0070.02710.27
4.3.60.0100.02710.27
4.3.50.0070.03010.27
4.3.40.0030.03710.27
4.3.30.0000.03310.27
4.3.20.0030.03010.27
4.3.10.0030.03310.27
4.3.00.0030.03010.27

preferences:
141.94 ms | 1394 KiB | 7 Q