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; $obj=2; echo 'Static object: '; var_dump($obj); if (isset($obj)) { // Assign the object to the static variable $obj = new stdclass; } $obj->property++; return $obj->property; } $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)
5.6.280.0070.06721.03
5.6.250.0100.06020.60
5.6.240.0100.07020.55
5.6.230.0170.06720.51
5.6.220.0070.07720.60
5.6.210.0030.07720.46
5.6.200.0130.06721.12
5.6.190.0200.07321.04
5.6.180.0030.08721.02
5.6.170.0070.05021.18
5.6.160.0100.07721.11
5.6.150.0170.06320.97
5.6.140.0130.07721.14
5.6.130.0100.08020.99
5.6.120.0000.08721.16
5.6.110.0000.05320.96
5.6.100.0130.07321.04
5.6.90.0070.06721.01
5.6.80.0070.07020.54
5.6.70.0070.07320.38
5.6.60.0100.07720.43
5.6.50.0070.07320.49
5.6.40.0100.06720.39
5.6.30.0100.04320.41
5.6.20.0130.06720.38
5.6.10.0100.05720.40
5.6.00.0100.07320.37
5.5.380.0030.05320.41
5.5.370.0130.07020.41
5.5.360.0100.07720.35
5.5.350.0230.07320.41
5.5.340.0130.06720.87
5.5.330.0130.07720.90
5.5.320.0130.07320.94
5.5.310.0100.07720.89
5.5.300.0070.07020.88
5.5.290.0130.06720.84
5.5.280.0070.05020.94
5.5.270.0070.07020.93
5.5.260.0070.08020.78
5.5.250.0070.08020.59
5.5.240.0030.06320.18
5.5.230.0070.06720.18
5.5.220.0100.03020.21
5.5.210.0070.06720.22
5.5.200.0070.06720.26
5.5.190.0170.07020.25
5.5.180.0130.07320.22
5.5.160.0070.04720.09
5.5.150.0130.07020.14
5.5.140.0030.07720.13
5.5.130.0000.08020.15
5.5.120.0130.06720.24
5.5.110.0070.07020.25
5.5.100.0170.06320.11
5.5.90.0070.08020.18
5.5.80.0030.08020.04
5.5.70.0100.07720.06
5.5.60.0000.08019.91
5.5.50.0070.06320.13
5.5.40.0170.07020.05
5.5.30.0070.04720.07
5.5.20.0100.05320.15
5.5.10.0030.06320.08
5.5.00.0130.06320.00
5.4.450.0070.04019.52
5.4.440.0030.07319.56
5.4.430.0030.05019.54
5.4.420.0070.07719.37
5.4.410.0100.06719.33
5.4.400.0100.04318.90
5.4.390.0070.03719.21
5.4.380.0000.07719.21
5.4.370.0070.06018.95
5.4.360.0100.07719.13
5.4.350.0070.07319.13
5.4.340.0070.07019.17
5.4.320.0100.07019.19
5.4.310.0030.04319.14
5.4.300.0030.08319.13
5.4.290.0130.06718.95
5.4.280.0030.07318.88
5.4.270.0130.07019.21
5.4.260.0070.04319.00
5.4.250.0000.06319.13
5.4.240.0100.06318.87
5.4.230.0030.04719.03
5.4.220.0030.08019.12
5.4.210.0170.05718.94
5.4.200.0000.07319.12
5.4.190.0100.07019.16
5.4.180.0070.03319.13
5.4.170.0030.05718.87
5.4.160.0070.04719.01
5.4.150.0070.04318.86
5.4.140.0070.07716.54
5.4.130.0100.04716.50
5.4.120.0100.06716.23
5.4.110.0000.08016.43
5.4.100.0030.07016.39
5.4.90.0000.07716.48
5.4.80.0070.07016.38
5.4.70.0100.05316.52
5.4.60.0000.07716.40
5.4.50.0030.08016.48
5.4.40.0030.07316.45
5.4.30.0030.07716.48
5.4.20.0070.06316.47
5.4.10.0170.06716.41
5.4.00.0100.05715.86
5.3.290.0070.07714.79
5.3.280.0130.05314.73
5.3.270.0030.05714.63
5.3.260.0100.07314.67
5.3.250.0070.06714.62
5.3.240.0030.07714.66
5.3.230.0100.04714.70
5.3.220.0170.06314.69
5.3.210.0070.07314.50
5.3.200.0070.07714.63
5.3.190.0070.04314.55
5.3.180.0030.06714.59
5.3.170.0070.04314.50
5.3.160.0130.07014.61
5.3.150.0100.07314.62
5.3.140.0070.07314.59
5.3.130.0070.07014.68
5.3.120.0030.07014.48
5.3.110.0100.07714.62
5.3.100.0070.07014.03
5.3.90.0100.07014.00
5.3.80.0070.06313.95
5.3.70.0170.06713.95
5.3.60.0030.05314.11
5.3.50.0070.07714.07
5.3.40.0000.07314.02
5.3.30.0100.06014.04
5.3.20.0030.06713.79
5.3.10.0130.06313.58
5.3.00.0000.05313.67
5.2.170.0100.05711.27
5.2.160.0030.06311.26
5.2.150.0100.05311.27
5.2.140.0070.06011.21
5.2.130.0130.05311.14
5.2.120.0100.02711.10
5.2.110.0000.05011.09
5.2.100.0070.05711.12
5.2.90.0030.05011.09
5.2.80.0030.03011.12
5.2.70.0000.04711.02
5.2.60.0070.06011.12
5.2.50.0030.05311.04
5.2.40.0030.06311.04
5.2.30.0070.06010.84
5.2.20.0030.05711.07
5.2.10.0070.05710.92
5.2.00.0030.04010.83
5.1.60.0000.03310.01
5.1.50.0000.03010.10
5.1.40.0070.04710.07
5.1.30.0100.05010.32
5.1.20.0030.05710.34
5.1.10.0000.0579.92
5.1.00.0000.05010.13
5.0.50.0070.0438.67
5.0.40.0030.0338.34
5.0.30.0030.0638.34
5.0.20.0070.0378.34
5.0.10.0000.0478.34
5.0.00.0030.0678.34
4.4.90.0070.0308.34
4.4.80.0070.0338.34
4.4.70.0030.0338.34
4.4.60.0000.0338.34
4.4.50.0030.0338.34
4.4.40.0000.0538.34
4.4.30.0030.0338.34
4.4.20.0030.0138.34
4.4.10.0030.0338.34
4.4.00.0030.0578.34
4.3.110.0000.0378.34
4.3.100.0030.0338.34
4.3.90.0100.0278.34
4.3.80.0070.0508.34
4.3.70.0030.0338.34
4.3.60.0070.0308.34
4.3.50.0030.0338.34
4.3.40.0070.0478.34
4.3.30.0000.0378.34
4.3.20.0030.0308.34
4.3.10.0030.0378.34
4.3.00.0000.0278.34

preferences:
140.86 ms | 1386 KiB | 7 Q