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不是iconv函数的bug

上一篇把题目写成《iconv函数的小bug》怪吓人的~~~华晨同学的回复使我感到自己的不求甚解.正所谓知错能改,善莫大焉。于是我重新查了一遍:php官方的说明:http://cn.php.net/manual/en/function.iconv.php
函数原型:string iconv ( string $in_charset , string $out_charset , string $str )
特别是第二个参数说明:
The output charset.

If you append the string //TRANSLIT to out_charset transliteration is activated. This means that when a character can’t be represented in the target charset, it can be approximated through one or several similarly looking characters. If you append the string //IGNORE, characters that cannot be represented in the target charset are silently discarded. Otherwise, str is cut from the first illegal character and an E_NOTICE is generated.

意思是如果你在第二个参数后面加上//TRANSLIT ,这样的话,当遇到目标输出的编码不认识的字符的时候,能被一个或几个近似的字符代替;而如果在第二个参数后面加上//IGNORE的时候,当目标输出的编码不认识的时候则什么也不操作;什么都不加的时候则会报错~~~

手册里面有个非常生动的例子:

59cff78c6fd1869de38b71e7d81beb73000

输出结果是:

Original :

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