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; $obj->property=2; echo 'Static object: '; var_dump($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"; $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)
5.6.280.0000.07720.87
5.6.250.0130.07720.79
5.6.240.0070.09020.55
5.6.230.0070.04020.51
5.6.220.0000.04720.68
5.6.210.0030.04020.68
5.6.200.0070.04021.06
5.6.190.0070.04021.07
5.6.180.0100.03721.02
5.6.170.0000.03721.06
5.6.160.0030.03721.08
5.6.150.0130.03021.02
5.6.140.0100.03320.99
5.6.130.0030.04021.17
5.6.120.0030.04021.03
5.6.110.0100.03721.02
5.6.100.0030.03321.13
5.6.90.0100.04020.95
5.6.80.0030.03720.51
5.6.70.0100.03020.52
5.6.60.0070.03720.40
5.6.50.0030.03320.41
5.6.40.0030.04020.46
5.6.30.0000.04320.41
5.6.20.0030.04720.39
5.6.10.0170.02720.49
5.6.00.0030.04320.39
5.5.380.0000.08320.40
5.5.370.0170.05320.52
5.5.360.0070.05320.42
5.5.350.0100.03720.48
5.5.340.0070.04020.81
5.5.330.0070.04020.89
5.5.320.0100.04320.84
5.5.310.0030.04020.86
5.5.300.0000.04320.78
5.5.290.0000.05020.84
5.5.280.0030.04320.89
5.5.270.0030.03720.91
5.5.260.0100.03720.63
5.5.250.0000.04020.72
5.5.240.0170.02320.15
5.5.230.0130.03320.30
5.5.220.0100.02720.29
5.5.210.0000.04320.02
5.5.200.0000.04020.15
5.5.190.0000.04320.23
5.5.180.0030.03720.15
5.5.160.0070.07320.14
5.5.150.0170.06320.24
5.5.140.0030.05320.16
5.5.130.0030.06320.08
5.5.120.0100.04720.18
5.5.110.0070.07720.08
5.5.100.0000.05020.18
5.5.90.0100.06320.12
5.5.80.0070.08320.17
5.5.70.0070.05020.09
5.5.60.0000.04720.12
5.5.50.0170.06319.96
5.5.40.0100.07320.10
5.5.30.0070.07720.16
5.5.20.0070.06320.09
5.5.10.0070.05720.08
5.5.00.0130.05320.12
5.4.450.0000.03719.49
5.4.440.0030.03719.51
5.4.430.0000.04019.46
5.4.420.0070.03019.41
5.4.410.0000.04319.07
5.4.400.0000.04018.85
5.4.390.0030.04019.23
5.4.380.0030.03018.91
5.4.370.0130.03019.04
5.4.360.0070.03719.14
5.4.350.0030.03319.21
5.4.340.0000.03719.22
5.4.320.0070.07019.04
5.4.310.0030.07719.21
5.4.300.0030.05018.88
5.4.290.0030.05718.95
5.4.280.0070.07319.25
5.4.270.0070.05019.04
5.4.260.0070.07319.04
5.4.250.0130.06019.03
5.4.240.0070.04719.20
5.4.230.0070.07019.17
5.4.220.0070.05018.90
5.4.210.0130.07018.90
5.4.200.0100.05719.05
5.4.190.0030.07719.15
5.4.180.0100.06319.15
5.4.170.0130.07019.08
5.4.160.0030.05019.07
5.4.150.0100.06719.21
5.4.140.0000.05716.38
5.4.130.0030.05016.46
5.4.120.0070.07316.46
5.4.110.0000.07316.52
5.4.100.0030.04716.41
5.4.90.0030.08016.48
5.4.80.0030.06716.40
5.4.70.0030.04316.47
5.4.60.0100.07316.44
5.4.50.0000.08016.47
5.4.40.0170.06716.53
5.4.30.0030.04016.48
5.4.20.0130.06016.38
5.4.10.0170.06316.44
5.4.00.0000.08015.63
5.3.290.0000.04714.64
5.3.280.0070.03714.66
5.3.270.0100.06714.55
5.3.260.0030.05714.63
5.3.250.0070.06714.72
5.3.240.0030.05314.70
5.3.230.0000.05714.58
5.3.220.0070.07714.59
5.3.210.0070.07314.71
5.3.200.0130.03014.71
5.3.190.0070.08014.68
5.3.180.0100.06314.59
5.3.170.0070.07314.52
5.3.160.0000.08014.64
5.3.150.0000.03714.68
5.3.140.0030.04314.49
5.3.130.0100.07314.62
5.3.120.0070.06714.66
5.3.110.0030.05014.64
5.3.100.0030.04314.15
5.3.90.0000.08014.09
5.3.80.0070.07313.95
5.3.70.0100.04013.96
5.3.60.0030.06713.91
5.3.50.0030.06313.89
5.3.40.0070.04313.84
5.3.30.0100.04014.05
5.3.20.0030.04713.71
5.3.10.0070.07013.55
5.3.00.0100.07013.64
5.2.170.0200.02012.20
5.2.160.0000.05012.20
5.2.150.0070.04312.20
5.2.140.0030.06712.20
5.2.130.0030.06012.20
5.2.120.0130.05012.20
5.2.110.0100.04312.20
5.2.100.0030.06712.20
5.2.90.0000.04012.20
5.2.80.0100.05312.20
5.2.70.0030.06312.20
5.2.60.0070.05012.20
5.2.50.0000.05312.20
5.2.40.0070.06012.20
5.2.30.0030.04012.20
5.2.20.0070.06012.20
5.2.10.0000.06712.20
5.2.00.0000.04312.20
5.1.60.0070.05012.20
5.1.50.0030.02312.20
5.1.40.0100.03012.20
5.1.30.0070.02312.20
5.1.20.0070.05012.20
5.1.10.0000.05312.20
5.1.00.0100.05012.20
5.0.50.0030.03312.20
5.0.40.0070.02712.20
5.0.30.0070.04712.20
5.0.20.0070.04012.20
5.0.10.0100.03712.20
5.0.00.0030.05012.20
4.4.90.0030.03012.20
4.4.80.0000.03712.20
4.4.70.0000.04012.20
4.4.60.0030.02712.20
4.4.50.0000.03012.20
4.4.40.0030.04312.20
4.4.30.0070.03012.20
4.4.20.0000.03312.20
4.4.10.0070.03012.20
4.4.00.0000.04712.20
4.3.110.0070.03312.20
4.3.100.0030.02712.20
4.3.90.0100.02712.20
4.3.80.0100.04012.20
4.3.70.0000.03012.20
4.3.60.0030.03312.20
4.3.50.0030.02712.20
4.3.40.0000.03312.20
4.3.30.0000.03312.20
4.3.20.0100.03012.20
4.3.10.0030.03312.20
4.3.00.0030.02712.20

preferences:
135.33 ms | 1398 KiB | 7 Q