求高手解码.多谢了

求高手解码...谢谢了
$OOO0O0O00=__FILE__;$OOO000000=urldecode('%74%68%36%73%62%65%68%71%6c%61%34%63%6f%5f%73%61%64%66%70%6e%72');$OO00O0000=836;$OOO0000O0=$OOO000000{4}.$OOO000000{9}.$OOO000000{3}.$OOO000000{5};$OOO0000O0.=$OOO000000{2}.$OOO000000{10}.$OOO000000{13}.$OOO000000{16};$OOO0000O0.=$OOO0000O0{3}.$OOO000000{11}.$OOO000000{12}.$OOO0000O0{7}.$OOO000000{5};$O0O0000O0='OOO0000O0';eval(($$O0O0000O0('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')));return;?>
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
------解决方案--------------------
一段一段代码一个变量一个变量的Echo出来，你就知道咋解了。