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 $property; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign the object to the static variable $obj = new stdclass; echo $property; } $obj->property++; return $obj; } $obj1 = get_instance_ref(); $still_obj1 = get_instance_ref(); echo "\n"; $property=2; $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)
5.6.250.0100.07320.61
5.6.240.0130.07020.61
5.6.230.0100.08020.51
5.6.220.0130.04320.64
5.6.210.0130.06020.63
5.6.200.0070.07321.12
5.6.190.0070.04721.00
5.6.180.0070.08321.02
5.6.170.0030.08721.11
5.6.160.0030.08320.97
5.6.150.0100.07321.05
5.6.140.0100.05720.97
5.6.130.0170.07321.11
5.6.120.0030.05021.03
5.6.110.0170.07021.13
5.6.100.0070.05021.10
5.6.90.0130.08021.09
5.6.80.0070.05320.41
5.6.70.0100.07020.56
5.6.60.0170.07320.55
5.6.50.0100.07020.46
5.6.40.0070.07020.32
5.6.30.0130.06320.38
5.6.20.0070.08020.32
5.6.10.0070.05320.41
5.6.00.0070.06320.30
5.5.380.0030.08320.40
5.5.370.0070.08020.39
5.5.360.0030.05020.36
5.5.350.0070.08720.43
5.5.340.0130.07720.91
5.5.330.0100.06720.79
5.5.320.0000.08720.92
5.5.310.0070.06320.88
5.5.300.0070.07720.80
5.5.290.0170.06720.95
5.5.280.0070.06020.90
5.5.270.0100.06320.72
5.5.260.0170.04320.79
5.5.250.0100.07320.69
5.5.240.0000.05320.17
5.5.230.0100.04320.22
5.5.220.0030.07720.28
5.5.210.0070.07720.18
5.5.200.0030.04320.22
5.5.190.0100.05720.27
5.5.180.0100.07320.26
5.5.160.0100.08020.13
5.5.150.0170.07320.11
5.5.140.0200.04720.27
5.5.130.0070.06320.08
5.5.120.0070.07720.13
5.5.110.0030.04720.27
5.5.100.0070.04020.20
5.5.90.0130.04020.18
5.5.80.0070.07020.08
5.5.70.0070.06320.06
5.5.60.0100.04720.06
5.5.50.0100.06020.16
5.5.40.0200.06020.10
5.5.30.0070.07019.96
5.5.20.0100.07320.06
5.5.10.0100.07720.08
5.5.00.0100.08020.12
5.4.450.0070.08319.38
5.4.440.0100.03719.27
5.4.430.0100.04319.37
5.4.420.0100.06019.37
5.4.410.0070.07719.38
5.4.400.0200.04319.04
5.4.390.0070.06018.91
5.4.380.0100.06019.03
5.4.370.0130.06319.09
5.4.360.0070.05319.21
5.4.350.0170.06018.88
5.4.340.0100.07719.03
5.4.320.0100.08019.05
5.4.310.0070.06718.88
5.4.300.0070.08719.12
5.4.290.0200.05319.16
5.4.280.0170.07019.07
5.4.270.0170.06319.12
5.4.260.0130.05719.13
5.4.250.0070.07319.12
5.4.240.0100.07719.12
5.4.230.0100.07319.11
5.4.220.0030.07719.17
5.4.210.0100.06319.13
5.4.200.0100.06318.89
5.4.190.0170.06718.84
5.4.180.0030.08319.13
5.4.170.0030.04719.08
5.4.160.0070.07719.02
5.4.150.0070.06719.18
5.4.140.0000.06716.47
5.4.130.0070.06316.48
5.4.120.0030.07716.46
5.4.110.0070.06716.45
5.4.100.0070.07316.48
5.4.90.0070.06716.56
5.4.80.0170.04316.51
5.4.70.0100.06716.31
5.4.60.0030.08016.37
5.4.50.0070.07016.47
5.4.40.0070.08316.45
5.4.30.0000.06316.43
5.4.20.0070.04716.40
5.4.10.0100.04016.44
5.4.00.0100.06715.79
5.3.290.0030.04714.64
5.3.280.0070.06014.52
5.3.270.0100.06014.58
5.3.260.0100.05714.68
5.3.250.0000.03714.66
5.3.240.0030.03714.73
5.3.230.0070.07714.70
5.3.220.0070.06014.68
5.3.210.0170.06314.58
5.3.200.0030.08014.64
5.3.190.0030.07314.58
5.3.180.0000.05014.66
5.3.170.0070.06314.50
5.3.160.0130.04014.59
5.3.150.0130.07014.57
5.3.140.0000.04014.67
5.3.130.0130.06014.61
5.3.120.0100.05714.50
5.3.110.0030.04714.62
5.3.100.0100.08014.10
5.3.90.0100.06714.10
5.3.80.0100.07314.05
5.3.70.0030.04314.03
5.3.60.0030.04313.98
5.3.50.0000.07013.98
5.3.40.0030.04314.05
5.3.30.0030.06313.95
5.3.20.0030.03313.68
5.3.10.0100.06313.72
5.3.00.0070.06313.55
5.2.170.0130.05012.20
5.2.160.0070.03312.20
5.2.150.0070.05712.20
5.2.140.0070.06012.20
5.2.130.0070.06012.20
5.2.120.0000.06312.20
5.2.110.0030.04712.20
5.2.100.0130.02312.20
5.2.90.0030.05312.20
5.2.80.0030.02712.20
5.2.70.0030.05712.20
5.2.60.0100.05012.20
5.2.50.0000.03012.20
5.2.40.0030.02712.20
5.2.30.0000.03012.20
5.2.20.0070.06012.20
5.2.10.0070.04312.20
5.2.00.0030.04012.20
5.1.60.0030.05312.20
5.1.50.0070.02012.20
5.1.40.0000.03012.20
5.1.30.0070.02712.20
5.1.20.0030.04712.20
5.1.10.0030.02312.20
5.1.00.0000.04312.20
5.0.50.0100.03712.20
5.0.40.0030.05312.20
5.0.30.0000.04312.20
5.0.20.0000.04312.20
5.0.10.0000.04712.20
5.0.00.0030.05012.20
4.4.90.0030.03312.20
4.4.80.0000.03712.20
4.4.70.0000.03312.20
4.4.60.0000.02712.20
4.4.50.0030.01312.20
4.4.40.0100.03712.20
4.4.30.0070.02012.20
4.4.20.0030.02312.20
4.4.10.0000.02012.20
4.4.00.0070.03312.20
4.3.110.0030.02012.20
4.3.100.0030.02312.20
4.3.90.0030.02312.20
4.3.80.0030.04312.20
4.3.70.0070.03012.20
4.3.60.0030.02712.20
4.3.50.0070.03012.20
4.3.40.0100.03312.20
4.3.30.0000.03012.20
4.3.20.0030.02312.20
4.3.10.0070.03012.20
4.3.00.0000.03312.20

preferences:
131.58 ms | 1394 KiB | 7 Q