php函数引用传值
<?php function &fun(){ static $a=10; return $a; } $f=&fun(); var_dump($f); //10 $f=100; var_dump(fun()); //100 ?> <?php function fun(){ static $a=10; return $a; } $f=&fun(); //Strict standards: Only variables should be assigned by reference var_dump($f);//10 ?> <?php function &fun(){ static $a=10; return $a; } $f=fun(); var_dump($f);//10 $f=100; var_dump(fun());//10 ?>