php验证远程图片以及文件是否存在
场景说明： 工作中遇到一个很严肃的问题，当时在开发机维护到mongo里的图片以及文件数据在从开发机往生产机器上导入的时候发现有一些图片和文件的源文件没有成功导进去。由于开发机数据杂乱找不到好的筛选条件去对数据进行筛选，而且项目正式上线的日期一直
场景说明：
工作中遇到一个很严肃的问题，当时在开发机维护到mongo里的图片以及文件数据在从开发机往生产机器上导入的时候发现有一些图片和文件的源文件没有成功导进去。由于开发机数据杂乱找不到好的筛选条件去对数据进行筛选，而且项目正式上线的日期一直在靠近，没有太多的成本去让我研...
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