PHP加密解密

<?php $_F=__FILE__;$_X='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';$_D=strrev('edoced_46esab');eval($_D('JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCdYUWpmQkQuCj1nem0yYml7WUY1dzxPTVo0TnN9YTlkQTBHbEs+XUUgaDZDcmt2L1ZwSXVxblN4V1RlW0pVMTdSOGNvUDN5dExIJywncnRKaXNCM2JTVERFZ1V6YzluZkNrMGUKN3ZbSE0yPk5POEt7cWpBZFFaXTwgV1BHNWxtRnV9TC5weUk9MTQvd3hZVmhYUjZhbycpOyRfUj1zdHJfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wrOyRfWD0wOw=='));?>

解密后能运行 分再加

http://www.phpchinaz.cn/c/PHP/3_303_1228482013.html

看看是不是，不会那个也是你问的吧。