Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>附录 D. 从 PHP 3 移植到 PHP 4</TD
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>&#13;    可能最具争议的改变是对 <A
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    函数行为的改变。一个仅包含字符“0”（是零，不是英文字母“O”）的字符串现在被认为是空字符串，而 PHP 3 中则相反。
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>&#13;    这个改变对 web 程序很有意义，所有的 input 表单返回的都是
    string，甚至填写的是数字。PHP
    能够自动进行类型转换。但另一方面，这可能不是代码的原意，可能导致代码莫名其妙的错误。
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