meaning of extract in php
import variables into the current symbol table from an array
example of extract
<?php
$a='original';
$my_array=array("a"=>"cat","b"=>"dog","c"=>"Horse");
extract($my_array);
echo "\a=$a;\$b=$b;\$c=$c";
it will be ouput
$a=cat;$b=dog;$c=$c;
?>
