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; } $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)
5.6.280.0070.07020.79
5.6.230.0100.08320.76
5.6.220.0000.06320.56
5.6.210.0070.08020.68
5.6.200.0130.07321.09
5.6.190.0070.08321.04
5.6.180.0100.08020.96
5.6.170.0100.06321.04
5.6.160.0030.08721.02
5.6.150.0100.07721.07
5.6.140.0130.07721.12
5.6.130.0130.07021.14
5.6.120.0070.07721.04
5.6.110.0000.09321.06
5.6.100.0030.05020.99
5.6.90.0100.07720.92
5.6.80.0030.06020.35
5.6.70.0130.06320.41
5.6.60.0000.05020.46
5.6.50.0130.05320.52
5.6.40.0030.05720.37
5.6.30.0030.08720.43
5.6.20.0030.08720.50
5.6.10.0030.08320.26
5.6.00.0100.08320.37
5.5.370.0070.05320.43
5.5.360.0070.07320.32
5.5.350.0030.08720.38
5.5.340.0170.07320.78
5.5.330.0170.08320.74
5.5.320.0070.08320.89
5.5.310.0030.04320.91
5.5.300.0000.09020.86
5.5.290.0100.08020.83
5.5.280.0030.08720.93
5.5.270.0000.08320.82
5.5.260.0030.09020.86
5.5.250.0030.06020.59
5.5.240.0100.07020.32
5.5.230.0130.07020.21
5.5.220.0070.08320.20
5.5.210.0070.04020.21
5.5.200.0030.08720.20
5.5.190.0030.07020.22
5.5.180.0100.04720.16
5.5.160.0130.06720.28
5.5.150.0070.05720.25
5.5.140.0070.04020.23
5.5.130.0030.05020.20
5.5.120.0000.06320.25
5.5.110.0130.07019.99
5.5.100.0030.06020.04
5.5.90.0100.07020.11
5.5.80.0070.06020.07
5.5.70.0030.04720.16
5.5.60.0030.04320.06
5.5.50.0070.07720.10
5.5.40.0030.06020.16
5.5.30.0030.04720.02
5.5.20.0070.06720.14
5.5.10.0070.07020.04
5.5.00.0130.07020.09
5.4.450.0100.07719.23
5.4.440.0070.05319.38
5.4.430.0030.05319.36
5.4.420.0000.07719.36
5.4.410.0030.07319.32
5.4.400.0070.04319.14
5.4.390.0030.07019.22
5.4.380.0030.06019.13
5.4.370.0070.06718.89
5.4.360.0070.08019.03
5.4.350.0130.07018.88
5.4.340.0070.07719.23
5.4.320.0070.04019.12
5.4.310.0200.03019.21
5.4.300.0030.04019.23
5.4.290.0030.07718.89
5.4.280.0100.07318.94
5.4.270.0200.06719.09
5.4.260.0100.07719.18
5.4.250.0070.04319.12
5.4.240.0070.04319.04
5.4.230.0100.07018.89
5.4.220.0000.07718.86
5.4.210.0100.06719.04
5.4.200.0100.08018.94
5.4.190.0130.06719.08
5.4.180.0070.07719.15
5.4.170.0100.07319.04
5.4.160.0130.05719.14
5.4.150.0070.07719.14
5.4.140.0070.07016.31
5.4.130.0170.04716.40
5.4.120.0030.04016.48
5.4.110.0000.07716.45
5.4.100.0000.07716.32
5.4.90.0070.07716.54
5.4.80.0070.07716.43
5.4.70.0070.07316.51
5.4.60.0000.05316.47
5.4.50.0070.06716.48
5.4.40.0100.06716.38
5.4.30.0030.07016.46
5.4.20.0170.05716.30
5.4.10.0070.06716.47
5.4.00.0070.06315.90
5.3.290.0130.03014.76
5.3.280.0030.05314.73
5.3.270.0070.04314.75
5.3.260.0030.05714.57
5.3.250.0000.04714.75
5.3.240.0070.05314.60
5.3.230.0170.06314.61
5.3.220.0130.06714.54
5.3.210.0100.07014.57
5.3.200.0170.06014.63
5.3.190.0000.08014.66
5.3.180.0100.04714.63
5.3.170.0100.07314.68
5.3.160.0070.07714.60
5.3.150.0030.05314.53
5.3.140.0070.07014.53
5.3.130.0000.08014.57
5.3.120.0070.07714.52
5.3.110.0070.06714.68
5.3.100.0100.05314.13
5.3.90.0030.03714.04
5.3.80.0030.03714.09
5.3.70.0030.07714.05
5.3.60.0000.06714.12
5.3.50.0100.06013.86
5.3.40.0030.07013.97
5.3.30.0070.04714.03
5.3.20.0000.07713.68
5.3.10.0070.05313.58
5.3.00.0070.02713.64
5.2.170.0030.05313.20
5.2.160.0100.05313.20
5.2.150.0070.06013.20
5.2.140.0030.06013.20
5.2.130.0070.05713.20
5.2.120.0030.06013.20
5.2.110.0030.03313.20
5.2.100.0030.06313.20
5.2.90.0000.04013.20
5.2.80.0030.02713.20
5.2.70.0070.05713.20
5.2.60.0070.02313.20
5.2.50.0000.06013.20
5.2.40.0030.04713.20
5.2.30.0030.06313.20
5.2.20.0000.07013.20
5.2.10.0070.05713.20
5.2.00.0030.05713.20
5.1.60.0000.04013.20
5.1.50.0070.03713.20
5.1.40.0070.04713.20
5.1.30.0170.03713.20
5.1.20.0070.03013.20
5.1.10.0030.06013.20
5.1.00.0000.05713.20
5.0.50.0030.04313.20
5.0.40.0030.02013.20
5.0.30.0170.04013.20
5.0.20.0030.03713.20
5.0.10.0030.04313.20
5.0.00.0000.05013.20
4.4.90.0000.01313.20
4.4.80.0000.03713.20
4.4.70.0000.03013.20
4.4.60.0000.03713.20
4.4.50.0000.03713.20
4.4.40.0000.05313.20
4.4.30.0030.03713.20
4.4.20.0000.03713.20
4.4.10.0030.01713.20
4.4.00.0030.05313.20
4.3.110.0030.03313.20
4.3.100.0000.03313.20
4.3.90.0000.03313.20
4.3.80.0000.05313.20
4.3.70.0030.03313.20
4.3.60.0030.03013.20
4.3.50.0000.03013.20
4.3.40.0030.04713.20
4.3.30.0030.03013.20
4.3.20.0000.03013.20
4.3.10.0000.03713.20
4.3.00.0030.02013.20

preferences:
142.31 ms | 1394 KiB | 7 Q