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; $obj->property=2; echo 'Static object: '; var_dump($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)
5.6.280.0100.06720.79
5.6.230.0070.05720.51
5.6.220.0070.08020.63
5.6.210.0030.05720.65
5.6.200.0130.07721.05
5.6.190.0030.08021.08
5.6.180.0130.05321.08
5.6.170.0100.08021.03
5.6.160.0100.07721.12
5.6.150.0170.07021.14
5.6.140.0100.08321.00
5.6.130.0030.07320.92
5.6.120.0100.07721.02
5.6.110.0070.07021.02
5.6.100.0070.07721.00
5.6.90.0070.08021.12
5.6.80.0100.04720.40
5.6.70.0030.06720.34
5.6.60.0100.07720.46
5.6.50.0100.06720.53
5.6.40.0070.04720.55
5.6.30.0130.05020.47
5.6.20.0030.04320.36
5.6.10.0030.04320.31
5.6.00.0070.08720.46
5.5.370.0130.04320.38
5.5.360.0230.06720.54
5.5.350.0030.06020.43
5.5.340.0030.08020.84
5.5.330.0030.08720.88
5.5.320.0100.08020.83
5.5.310.0070.08720.78
5.5.300.0170.07720.89
5.5.290.0070.06320.88
5.5.280.0130.04020.89
5.5.270.0030.09020.62
5.5.260.0000.09720.92
5.5.250.0070.08020.71
5.5.240.0130.06720.22
5.5.230.0130.05020.26
5.5.220.0030.06320.21
5.5.210.0070.04020.18
5.5.200.0130.04320.13
5.5.190.0070.05020.19
5.5.180.0000.04320.18
5.5.160.0100.05720.12
5.5.150.0100.04320.21
5.5.140.0130.07020.27
5.5.130.0170.06720.25
5.5.120.0200.06720.24
5.5.110.0030.07720.28
5.5.100.0030.06020.14
5.5.90.0030.09019.91
5.5.80.0100.07020.18
5.5.70.0100.05020.16
5.5.60.0070.07320.09
5.5.50.0030.07720.06
5.5.40.0130.06719.94
5.5.30.0000.07720.15
5.5.20.0130.07320.06
5.5.10.0130.06720.03
5.5.00.0100.07720.01
5.4.450.0130.07019.44
5.4.440.0030.05719.48
5.4.430.0030.07719.45
5.4.420.0100.04019.46
5.4.410.0170.06319.40
5.4.400.0030.05318.86
5.4.390.0100.07319.05
5.4.380.0070.07318.91
5.4.370.0000.06019.05
5.4.360.0130.05019.02
5.4.350.0030.04718.87
5.4.340.0070.04019.21
5.4.320.0070.07719.05
5.4.310.0100.07018.91
5.4.300.0130.06719.04
5.4.290.0100.06719.14
5.4.280.0000.08319.18
5.4.270.0130.06718.92
5.4.260.0030.08019.02
5.4.250.0100.04319.02
5.4.240.0070.08019.09
5.4.230.0100.07719.12
5.4.220.0000.04719.14
5.4.210.0000.08318.84
5.4.200.0130.03719.08
5.4.190.0070.06719.20
5.4.180.0230.06019.13
5.4.170.0030.07719.20
5.4.160.0100.07018.86
5.4.150.0200.04719.07
5.4.140.0030.07316.45
5.4.130.0130.05716.46
5.4.120.0000.05016.37
5.4.110.0130.04016.30
5.4.100.0070.07016.57
5.4.90.0130.06716.42
5.4.80.0100.06716.31
5.4.70.0100.06016.33
5.4.60.0100.07016.31
5.4.50.0100.07016.45
5.4.40.0030.04316.46
5.4.30.0100.05716.36
5.4.20.0030.06316.33
5.4.10.0070.05316.24
5.4.00.0030.04715.90
5.3.290.0070.06714.70
5.3.280.0030.05314.71
5.3.270.0070.06314.75
5.3.260.0030.05714.68
5.3.250.0100.07314.68
5.3.240.0100.06314.64
5.3.230.0230.07014.69
5.3.220.0070.05314.62
5.3.210.0170.07014.68
5.3.200.0130.07014.52
5.3.190.0230.06314.59
5.3.180.0100.07714.55
5.3.170.0070.07314.69
5.3.160.0100.07314.47
5.3.150.0030.05714.63
5.3.140.0100.07314.59
5.3.130.0200.05714.68
5.3.120.0070.07314.68
5.3.110.0070.05314.52
5.3.100.0130.06014.02
5.3.90.0170.04314.09
5.3.80.0030.07314.11
5.3.70.0030.07013.96
5.3.60.0070.07713.94
5.3.50.0070.04713.94
5.3.40.0100.07014.01
5.3.30.0070.04313.97
5.3.20.0030.04313.63
5.3.10.0070.05313.63
5.3.00.0000.07713.70
5.2.170.0070.05713.63
5.2.160.0100.05713.63
5.2.150.0030.06713.63
5.2.140.0030.04013.63
5.2.130.0030.06313.63
5.2.120.0100.05013.63
5.2.110.0130.03713.63
5.2.100.0030.06713.63
5.2.90.0070.06313.63
5.2.80.0130.03313.63
5.2.70.0070.03713.63
5.2.60.0070.04013.63
5.2.50.0000.05713.63
5.2.40.0130.02313.63
5.2.30.0030.03713.63
5.2.20.0000.07013.63
5.2.10.0070.05713.63
5.2.00.0070.05713.63
5.1.60.0100.04713.63
5.1.50.0030.05013.63
5.1.40.0030.03313.63
5.1.30.0170.04313.63
5.1.20.0070.05313.63
5.1.10.0070.03713.63
5.1.00.0000.05313.63
5.0.50.0000.04013.63
5.0.40.0000.04713.63
5.0.30.0100.05713.63
5.0.20.0000.04713.63
5.0.10.0070.03313.63
5.0.00.0030.04313.63
4.4.90.0030.03013.63
4.4.80.0030.03313.63
4.4.70.0000.02013.63
4.4.60.0000.02313.63
4.4.50.0000.03713.63
4.4.40.0100.04713.63
4.4.30.0030.03313.63
4.4.20.0000.03713.63
4.4.10.0100.03013.63
4.4.00.0030.05713.63
4.3.110.0000.03013.63
4.3.100.0030.03313.63
4.3.90.0030.03013.63
4.3.80.0030.04313.63
4.3.70.0070.02713.63
4.3.60.0070.01713.63
4.3.50.0100.01313.63
4.3.40.0070.03313.63
4.3.30.0000.03713.63
4.3.20.0030.03713.63
4.3.10.0030.03313.63
4.3.00.0000.03013.63

preferences:
143.49 ms | 1394 KiB | 7 Q