Fatal error: Call to a member function on a non-object 的一种解决办法
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2010年7月28日
这两天被一个莫名其妙的错误：Fatal error: Call to a member function on a non-object in d://www/htdocs/inc.php 77 搞的是晕头转向的。花了两天的功夫也没找出原因。在网上也没有搜索到解决的办法。无奈之下只好一行一行的比对代码，最后终于发现了错误之处：数据库字段错误！
一开始我根本就没有联想到这方面的原因，只是不断的在代码中找原因。无论怎么找都是没问题的，甚至将函数重写也无济于事。之后查看数据库表的时后发现了问题：原来表格中的”hash”定义错误，程序上设置的是32位编码，而我在数据库中设置 的字段类型却是varchar(16)。也就是这个原因导致用户登录时session无法进入数据库表。从而出现类似：Fatal error: Call to a member function on a non-object的错误。
将数据库表中”hash”字段数据库类型改为varchar(32)。一切正常。多么可笑的错误呀，却浪费了我这么长的时间。在网上搜索时，多数人跟我一开始一样，都是从程序中找问题。这也是没有解决这个问题的原因。看来以后要多方位找问题的原因。希望跟我有同样问题的人能尽快解决问题。
人才啊
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I bet you wish george bush was still president now
同样的问题，我是表名写错了……
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