3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B { } class A { static $var; static function get() { if (isset(self::$var)) return self::$var; $x = new B(); $x->Children = array(0 => new B()); self::$var = $x; return $x; } } $a = A::get(); var_dump($a); unset($a->Children[0]); var_dump($a); $b = A::get(); var_dump($b); ?>

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)
8.3.60.0090.01318.46
8.3.50.0120.00918.31
8.3.40.0060.01218.81
8.3.30.0120.00318.88
8.3.20.0040.00418.91
8.3.10.0040.00421.77
8.3.00.0040.00421.85
8.2.180.0120.00616.75
8.2.170.0100.00322.96
8.2.160.0090.00922.08
8.2.150.0080.00024.18
8.2.140.0000.00924.66
8.2.130.0060.00326.16
8.2.120.0040.00418.94
8.2.110.0040.00720.95
8.2.100.0040.00818.03
8.2.90.0040.00417.75
8.2.80.0000.00817.97
8.2.70.0040.00418.04
8.2.60.0040.00418.16
8.2.50.0040.00418.10
8.2.40.0070.00019.47
8.2.30.0040.00420.55
8.2.20.0040.00418.02
8.2.10.0000.00718.21
8.2.00.0000.00818.24
8.1.280.0120.00625.92
8.1.270.0030.00622.18
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0030.00620.93
8.1.230.0060.00617.77
8.1.220.0080.00317.74
8.1.210.0090.00018.77
8.1.200.0040.00417.35
8.1.190.0030.00519.02
8.1.180.0040.00418.10
8.1.170.0060.00318.53
8.1.160.0040.00418.95
8.1.150.0070.00018.77
8.1.140.0050.00220.74
8.1.130.0070.00020.36
8.1.120.0050.00417.45
8.1.110.0050.00317.46
8.1.100.0000.00817.41
8.1.90.0070.00017.49
8.1.80.0080.00017.47
8.1.70.0050.00317.49
8.1.60.0050.00317.57
8.1.50.0030.00617.58
8.1.40.0080.00017.37
8.1.30.0000.00817.69
8.1.20.0000.00717.69
8.1.10.0000.00717.50
8.1.00.0040.00417.41
8.0.300.0000.00818.77
8.0.290.0000.00716.75
8.0.280.0000.00718.52
8.0.270.0040.00416.90
8.0.260.0030.00618.34
8.0.250.0000.00816.93
8.0.240.0070.00016.97
8.0.230.0030.00317.00
8.0.220.0070.00016.97
8.0.210.0080.00016.94
8.0.200.0000.00816.87
8.0.190.0000.00716.86
8.0.180.0040.00416.87
8.0.170.0040.00416.94
8.0.160.0030.00316.75
8.0.150.0070.00016.89
8.0.140.0050.00316.77
8.0.130.0000.00513.30
8.0.120.0040.00416.73
8.0.110.0000.00816.75
8.0.100.0000.00716.97
8.0.90.0000.00716.80
8.0.80.0060.01216.84
8.0.70.0000.00716.94
8.0.60.0000.00716.79
8.0.50.0020.00516.85
8.0.30.0070.01117.11
8.0.20.0090.00917.40
8.0.10.0070.00017.10
8.0.00.0110.00916.82
7.4.330.0060.00015.55
7.4.320.0000.00616.55
7.4.300.0000.00616.53
7.4.290.0040.00416.65
7.4.280.0060.00316.52
7.4.270.0000.00816.63
7.4.260.0000.00816.63
7.4.250.0080.00016.63
7.4.240.0000.00716.66
7.4.230.0030.00316.33
7.4.220.0000.00816.50
7.4.210.0030.01316.54
7.4.200.0000.00716.42
7.4.160.0070.01016.60
7.4.140.0080.01017.86
7.4.130.0160.02616.70
7.4.120.0100.00716.59
7.4.110.0030.01416.48
7.4.100.0120.00916.67
7.4.90.0120.00616.45
7.4.80.0100.00719.39
7.4.70.0120.01216.49
7.4.60.0110.00616.46
7.4.50.0060.01216.37
7.4.40.0110.00616.61
7.4.00.0100.00714.69
7.3.330.0020.00213.38
7.3.320.0000.00613.35
7.3.310.0000.00716.43
7.3.300.0030.00316.33
7.3.290.0000.00716.24
7.3.280.0030.01616.39
7.3.260.0100.01116.52
7.3.240.0080.01016.51
7.3.230.0130.00416.49
7.3.210.0140.00716.35
7.3.200.0090.00616.66
7.3.190.0090.00916.29
7.3.180.0000.01616.46
7.3.170.0060.00916.64
7.3.160.0130.00316.37
7.2.330.0140.00516.72
7.2.320.0030.02016.61
7.2.310.0100.01316.52
7.2.300.0070.01116.29
7.2.290.0150.00816.60
7.2.100.0120.00814.76
7.2.90.0190.00014.75
7.2.80.0830.00914.57
7.2.70.0150.00015.05
7.2.60.0080.00815.25
7.2.50.0170.00715.10
7.2.40.0210.00715.21
7.2.30.0530.00015.03
7.2.20.1040.00915.02
7.2.10.1160.01014.92
7.2.00.0940.00314.76
7.1.220.0330.00013.84
7.1.210.0830.01013.86
7.1.200.0260.01013.66
7.1.190.0770.00713.84
7.1.180.0310.00014.05
7.1.170.0800.00613.69
7.1.160.0830.00313.96
7.1.150.0870.00613.82
7.1.140.1770.00313.93
7.1.130.0260.00313.88
7.1.120.0160.00613.90
7.1.110.0120.00514.06
7.1.100.1050.00313.71
7.1.90.0210.01113.80
7.1.80.0840.00413.64
7.1.70.1180.00013.62
7.1.60.0330.01331.83
7.1.50.1250.00931.66
7.1.40.1410.00632.05
7.1.30.0440.00331.73
7.1.20.1440.01631.97
7.1.10.1480.01213.95
7.1.00.1150.00614.07
5.6.380.0050.00614.54

preferences:
66.17 ms | 400 KiB | 5 Q