js解析php数组

<script language="javascript">
var str;
//$file = 'config/config.xml';
str = '<?php
$info = array();
array_push($info,"folder1");
array_push($info,"folder2");
echo json_encode($info);

?>';
var list = eval(decodeURIComponent(str));
alert(list[0]);
for(var i=0;i<8;i++){
document.write("<div class='movieImg'>");
document.write("<a href='video.php' target='_Blank'><div class='selected'></div></a>");
document.write("<a href='#' target='_Blank'><img src='images/movie1.jpg' alt='movie' /></a>");
document.write("</div>");
}

</script>