Online PHP editor | perf for Abvpq

@ 2013-09-24T17:23:36Z

<?php
//this seems to work as if there is 2 variables both a public static and a private static
class foo{
    public static $myvar = 99;

    //Uncommenting below leads to a Cannot redeclare foo::$myvar
    //public $myvar = 77;

    public function __construct(){
       $this->myvar = 35;
    }
    public function printMyVar(){
        echo '->printMyVar(): '.$this->myvar;
    }
    public function setMyVar($mv){ $this->myvar = $mv; }
}

echo "foo before creation: \n";
echo 'static: '.foo::$myvar: '.foo::$myvar."\n";


echo "Creating new instance of foo\n";
$foo = new foo();

echo 'instance: '.$foo->printMyVar();
echo "\n";
echo 'static foo::$myvar: '.foo::$myvar."\n";


$foo->setMyVar(33);
echo "After setting $myvar to 33\n";
echo 'instance: '.$foo->printMyVar();
echo "\n";
echo 'static foo::$myvar: '.foo::$myvar."\n";


echo "Conclusion: when using \$this-> to change the value, it adds another non-static version rather than changing the static version";

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).

Version	System time (s)	User time (s)	Memory (MiB)
5.4.20	0.012	0.037	12.40
5.4.19	0.014	0.052	12.39
5.4.18	0.014	0.041	12.39
5.4.17	0.013	0.038	12.40
5.4.16	0.011	0.040	12.39
5.4.15	0.012	0.038	12.39
5.4.14	0.011	0.039	12.08
5.4.13	0.010	0.041	12.06
5.4.12	0.011	0.038	12.03
5.4.11	0.010	0.038	12.03
5.4.10	0.012	0.038	12.02
5.4.9	0.010	0.040	12.03
5.4.8	0.011	0.039	12.03
5.4.7	0.012	0.037	12.02
5.4.6	0.014	0.034	12.02
5.4.5	0.011	0.039	12.02
5.4.4	0.009	0.041	12.01
5.4.3	0.015	0.050	12.01
5.4.2	0.013	0.035	12.00
5.4.1	0.009	0.040	12.01
5.4.0	0.009	0.042	11.50
5.3.27	0.009	0.045	12.73
5.3.26	0.018	0.050	12.72
5.3.25	0.013	0.037	12.72
5.3.24	0.013	0.045	12.72
5.3.23	0.012	0.043	12.71
5.3.22	0.012	0.040	12.68
5.3.21	0.019	0.056	12.68
5.3.20	0.013	0.041	12.68
5.3.19	0.011	0.043	12.68
5.3.18	0.009	0.044	12.67
5.3.17	0.012	0.041	12.67
5.3.16	0.008	0.043	12.67
5.3.15	0.013	0.038	12.67
5.3.14	0.011	0.041	12.66
5.3.13	0.012	0.042	12.66
5.3.12	0.010	0.042	12.66
5.3.11	0.011	0.042	12.66
5.3.10	0.008	0.043	12.12
5.3.9	0.010	0.040	12.10
5.3.8	0.011	0.039	12.09
5.3.7	0.009	0.042	12.09
5.3.6	0.013	0.039	12.07
5.3.5	0.009	0.043	12.02
5.3.4	0.009	0.042	12.02
5.3.3	0.010	0.042	11.98
5.3.2	0.010	0.039	11.76
5.3.1	0.016	0.035	11.72
5.3.0	0.015	0.035	11.71

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