其实这是项目没有经过zend studio for eclipse 编译（应该是建立索引吧）导致的，那么就只要让它重新编译项目代码即可。
操作如下：
随便新建一个项目，比如test。然后找到test项目所在的目录，把目录下的.cache和.setting都复制到要重编译的项目的目录下，把test项目中的.project中的name改成要重编译的项目的项目名称，再复制到该目录下替换掉原有的.project.重启等待编译完成即可解决代码提示问题。
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