PHP extract() 函数用法举例

//导出数组为变量
$a = 'Original';
$my_array = array("a" => "Cat","b" => "Dog", "c" => "Horse");
extract($my_array); // bbs.it-home.org
echo "\$a = $a; \$b = $b; \$c = $c";
?>

输出结果： $a = Cat; $b = Dog; $c = Horse

例2，使用全部参数：

$a = 'Original';
$my_array = array("a" => "Cat","b" => "Dog", "c" => "Horse");
extract($my_array, EXTR_PREFIX_SAME, 'dup');
echo "\$a = $a; \$b = $b; \$c = $c; \$dup_a = $dup_a;";
?>

输出结果： $a = Original; $b = Dog; $c = Horse; $dup_a = Cat;