代码编辑器：
x
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$a = "Original";4
$my_array = array("a" => "Cat","b" => "Dog", "c" => "Horse");5
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extract($my_array);7
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echo "$a = $a; $b = $b; $c = $c";9
$a = "Original";$my_array = array("a" => "Cat","b" => "Dog", "c" => "Horse");extract($my_array);echo "$a = $a; $b = $b; $c = $c";