8月1日在河北保定有许多地方的居民都收到了紧急撤退通知，本次发布通知也是因为在河北一些重灾洪涝区域即将泄洪，泄洪会导致其他地区遭遇开发者_StackOverflow洪水的侵袭，从而使房屋以及道路全部淹没，当天紧急部门
I\'m working on a zend framework based email project and I\'m following some code samples online.. I can\'t understand this line of code which apparently loops through different \'parts\' of an email
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