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; static $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)
5.6.280.0030.07321.10
5.6.210.0130.07720.52
5.6.200.0170.07718.15
5.6.190.0170.04320.60
5.6.180.0230.05320.63
5.6.170.0230.06720.60
5.6.160.0100.03720.71
5.6.150.0100.08018.27
5.6.140.0030.04318.20
5.6.130.0170.06318.18
5.6.120.0070.06721.16
5.6.110.0100.09020.99
5.6.100.0130.03321.14
5.6.90.0130.07720.96
5.6.80.0100.05020.49
5.6.70.3170.03320.48
5.5.350.0470.06720.39
5.5.340.0000.04717.96
5.5.330.0030.05720.45
5.5.320.0300.07320.43
5.5.310.0200.09020.24
5.5.300.0070.07318.09
5.5.290.0070.08018.02
5.5.280.0070.05320.78
5.5.270.0070.08720.80
5.5.260.0070.03720.83
5.5.250.0070.05020.56
5.5.240.0070.04320.28
5.4.450.0070.06719.49
5.4.440.0070.06319.53
5.4.430.0170.05019.44
5.4.420.0030.05719.57
5.4.410.0130.07019.34
5.4.400.0030.08319.01
5.4.390.0070.04719.24
5.4.380.0070.08718.98
5.4.370.0070.03318.98
5.4.360.0270.02718.86
5.4.350.0030.04319.24
5.4.340.0070.03719.15
5.4.320.0030.04018.88
5.4.310.0030.04319.12
5.4.300.0030.06019.23
5.4.290.0100.05319.00
5.4.280.0170.07019.24
5.4.270.0100.07319.14
5.4.260.0070.07719.16
5.4.250.0170.06019.09
5.4.240.0000.04719.24
5.4.230.0030.03718.94
5.4.220.0070.03318.96
5.4.210.0000.04019.26
5.4.200.0030.03719.23
5.4.190.0100.03018.91
5.4.180.0070.03319.22
5.4.170.0000.04318.96
5.4.160.0070.03318.83
5.4.150.0000.04019.10
5.4.140.0030.04316.43
5.4.130.0070.03016.36
5.4.120.0100.04316.59
5.4.110.0000.04716.48
5.4.100.0070.03316.48
5.4.90.0030.04316.46
5.4.80.0000.03716.47
5.4.70.0000.04016.46
5.4.60.0000.03716.27
5.4.50.0070.03316.31
5.4.40.0030.04016.43
5.4.30.0030.03316.27
5.4.20.0030.03316.40
5.4.10.0000.03716.31
5.4.00.0030.03315.82
5.3.290.0070.05314.69
5.3.280.0000.04014.63
5.3.270.0070.03314.62
5.3.260.0070.03314.66
5.3.250.0030.03714.54
5.3.240.0030.04014.61
5.3.230.0030.03714.68
5.3.220.0070.03714.57
5.3.210.0130.05314.60
5.3.200.0030.04314.60
5.3.190.0000.04014.49
5.3.180.0100.03014.72
5.3.170.0030.03714.61
5.3.160.0100.03014.73
5.3.150.0070.03314.71
5.3.140.0000.04014.61
5.3.130.0000.04714.61
5.3.120.0000.04014.56
5.3.110.0030.04014.65
5.3.100.0030.03714.05
5.3.90.0070.03713.95
5.3.80.0000.03714.05
5.3.70.0100.03014.07
5.3.60.0000.03714.00
5.3.50.0170.02313.96
5.3.40.0100.04313.99
5.3.30.0000.03713.97
5.3.20.0030.03313.69
5.3.10.0000.03713.68
5.3.00.0070.03013.64
5.2.170.0000.03011.15
5.2.160.0000.03011.11
5.2.150.0030.02711.23
5.2.140.0030.03311.15
5.2.130.0000.03011.14
5.2.120.0000.03011.11
5.2.110.0000.03011.25
5.2.100.0070.02711.11
5.2.90.0030.03011.07
5.2.80.0000.03011.16
5.2.70.0000.03011.02
5.2.60.0030.02711.05
5.2.50.0000.03011.08
5.2.40.0030.03010.96
5.2.30.0030.05711.06
5.2.20.0030.06011.13
5.2.10.0000.04710.83
5.2.00.0070.04310.78
5.1.60.0000.0509.96
5.1.50.0070.03010.05
5.1.40.0030.0309.93
5.1.30.0130.04710.42
5.1.20.0030.06010.39
5.1.10.0070.04010.09
5.1.00.0030.03710.16
5.0.50.0070.0408.51
5.0.40.0000.0338.41
5.0.30.0070.0508.14
5.0.20.0000.0408.25
5.0.10.0070.0408.24
5.0.00.0030.0638.23
4.4.90.0000.0207.80
4.4.80.0000.0177.80
4.4.70.0000.0207.80
4.4.60.0000.0177.80
4.4.50.0000.0337.80
4.4.40.0000.0537.80
4.4.30.0030.0337.80
4.4.20.0030.0337.80
4.4.10.0030.0337.80
4.4.00.0030.0477.80
4.3.110.0000.0377.80
4.3.100.0100.0307.80
4.3.90.0000.0407.80
4.3.80.0000.0537.80
4.3.70.0030.0337.80
4.3.60.0070.0337.80
4.3.50.0100.0137.80
4.3.40.0000.0277.80
4.3.30.0030.0337.80
4.3.20.0000.0237.80
4.3.10.0000.0407.80
4.3.00.0030.0337.80

preferences:
142.07 ms | 1394 KiB | 7 Q