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 $property=2; echo 'Static object: '; var_dump($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)
5.6.280.0030.07321.10
5.6.250.0100.07020.59
5.6.240.0070.04320.53
5.6.230.0130.08020.59
5.6.220.0130.07020.45
5.6.210.0070.08020.52
5.6.200.0030.09721.14
5.6.190.0130.08020.92
5.6.180.0130.07720.89
5.6.170.0130.07721.08
5.6.160.0130.07720.98
5.6.150.0030.09021.03
5.6.140.0200.06720.94
5.6.130.0130.05021.05
5.6.120.0030.05721.11
5.6.110.0130.07020.96
5.6.100.0130.07720.98
5.6.90.0030.07321.05
5.6.80.0030.08320.45
5.6.70.0130.07320.49
5.6.60.0030.05020.39
5.6.50.0070.08020.40
5.6.40.0100.07020.34
5.6.30.0130.07020.43
5.6.20.0130.08020.49
5.6.10.0100.08020.31
5.6.00.0130.07720.44
5.5.380.0170.06320.29
5.5.370.0270.05720.40
5.5.360.0130.08020.52
5.5.350.0030.05020.38
5.5.340.0100.05020.89
5.5.330.0070.08320.74
5.5.320.0100.07720.89
5.5.310.0100.07320.91
5.5.300.0070.08320.78
5.5.290.0130.07720.80
5.5.280.0070.06020.86
5.5.270.0030.07020.91
5.5.260.0170.08020.73
5.5.250.0070.08720.70
5.5.240.0030.08020.30
5.5.230.0200.07020.30
5.5.220.0100.04320.25
5.5.210.0170.06320.14
5.5.200.0100.07320.23
5.5.190.0130.07020.27
5.5.180.0070.08020.22
5.5.160.0070.08320.22
5.5.150.0100.07020.09
5.5.140.0130.07320.09
5.5.130.0130.07320.27
5.5.120.0070.07320.09
5.5.110.0030.05020.13
5.5.100.0030.08720.14
5.5.90.0070.07720.17
5.5.80.0130.07320.07
5.5.70.0030.07320.15
5.5.60.0100.06719.97
5.5.50.0030.06720.06
5.5.40.0070.07320.11
5.5.30.0070.08020.16
5.5.20.0070.08020.15
5.5.10.0100.07720.13
5.5.00.0170.04719.98
5.4.450.0070.07719.51
5.4.440.0130.07319.56
5.4.430.0170.07319.56
5.4.420.0030.06019.20
5.4.410.0000.08319.38
5.4.400.0100.07319.24
5.4.390.0000.08319.12
5.4.380.0030.07318.88
5.4.370.0130.07019.06
5.4.360.0100.07018.95
5.4.350.0070.07019.18
5.4.340.0130.05719.12
5.4.320.0100.07319.03
5.4.310.0000.08019.13
5.4.300.0030.08019.02
5.4.290.0070.06319.23
5.4.280.0130.06018.90
5.4.270.0100.06719.18
5.4.260.0100.07319.24
5.4.250.0070.07018.87
5.4.240.0100.07719.02
5.4.230.0200.06719.11
5.4.220.0100.07719.11
5.4.210.0170.06719.21
5.4.200.0070.03719.04
5.4.190.0100.06319.02
5.4.180.0070.07719.13
5.4.170.0130.06719.21
5.4.160.0100.07318.88
5.4.150.0030.07719.05
5.4.140.0130.07016.43
5.4.130.0070.04716.48
5.4.120.0030.07716.49
5.4.110.0000.08016.32
5.4.100.0100.07316.32
5.4.90.0000.07016.30
5.4.80.0070.08016.38
5.4.70.0070.07316.43
5.4.60.0100.06716.33
5.4.50.0070.04716.48
5.4.40.0030.04716.52
5.4.30.0070.07016.36
5.4.20.0070.07316.46
5.4.10.0070.04016.29
5.4.00.0030.07315.85
5.3.290.0100.07014.68
5.3.280.0130.07314.61
5.3.270.0170.06014.62
5.3.260.0100.07314.68
5.3.250.0030.08014.58
5.3.240.0200.06014.54
5.3.230.0200.06314.66
5.3.220.0030.07714.53
5.3.210.0170.06714.63
5.3.200.0100.05714.51
5.3.190.0070.08014.64
5.3.180.0100.07314.54
5.3.170.0100.07014.68
5.3.160.0170.06714.54
5.3.150.0100.07014.66
5.3.140.0130.07014.63
5.3.130.0030.08014.61
5.3.120.0170.06314.54
5.3.110.0100.08014.51
5.3.100.0030.04314.01
5.3.90.0000.07714.14
5.3.80.0070.07313.95
5.3.70.0070.04714.04
5.3.60.0100.07014.07
5.3.50.0070.07314.06
5.3.40.0030.06714.02
5.3.30.0070.06013.95
5.3.20.0200.06313.83
5.3.10.0070.07713.71
5.3.00.0130.06713.70
5.2.170.0030.06011.16
5.2.160.0100.05311.25
5.2.150.0100.06311.04
5.2.140.0030.06711.00
5.2.130.0030.03310.96
5.2.120.0070.05711.12
5.2.110.0030.05311.20
5.2.100.0100.06011.18
5.2.90.0130.04011.11
5.2.80.0000.06711.16
5.2.70.0000.06711.22
5.2.60.0170.05311.16
5.2.50.0030.06310.94
5.2.40.0030.05311.00
5.2.30.0070.03710.87
5.2.20.0030.06010.87
5.2.10.0070.06010.91
5.2.00.0070.05310.73
5.1.60.0070.05310.07
5.1.50.0070.0439.84
5.1.40.0130.04310.02
5.1.30.0070.05710.44
5.1.20.0030.06010.35
5.1.10.0070.03310.15
5.1.00.0070.03310.19
5.0.50.0070.0438.66
5.0.40.0030.0478.48
5.0.30.0000.0638.30
5.0.20.0070.0408.30
5.0.10.0030.0478.30
5.0.00.0030.0678.30
4.4.90.0030.0338.30
4.4.80.0000.0378.30
4.4.70.0000.0378.30
4.4.60.0000.0378.30
4.4.50.0030.0378.30
4.4.40.0000.0508.30
4.4.30.0030.0378.30
4.4.20.0000.0378.30
4.4.10.0030.0238.30
4.4.00.0100.0438.30
4.3.110.0030.0308.30
4.3.100.0070.0308.30
4.3.90.0030.0378.30
4.3.80.0070.0378.30
4.3.70.0000.0378.30
4.3.60.0030.0338.30
4.3.50.0030.0338.30
4.3.40.0000.0538.30
4.3.30.0030.0278.30
4.3.20.0070.0338.30
4.3.10.0030.0378.30
4.3.00.0030.0338.30

preferences:
131.3 ms | 1394 KiB | 7 Q