在任意字符集下正常显示网页的方法-php手册-PHP中文网

网页|显示

通常情况下，我们的网页要指定一个编码字符集，如 GB2312、UTF-8、ISO-8859-1 等，这样我们就可以在网页上显示我们指定编码的文字了。但是我们很可能会遇到这种情况，那就是我们可能希望在 ISO-8859-1 编码的网页上显示汉字，或者在 GB2312 编码的网页上显示韩文等。当然一种解决办法就是我们不用 ISO-8859-1 或者 GB2312 编码，而统统都采用 UTF-8 编码，这样我们只要在这种编码下，就可以混合显示各国文字了，这是现在很多网站采用的方法。

而我这里所说的并非上面这种方法，因为上面这种方法必须要指定字符集为 UTF-8 才可以，一旦用户手工指定为其他字符集，或者可能因为某些原因，那个字符集设置没起作用，而浏览器又没有正确自动识别的话，我们看到的网页还是乱码，尤其是在某些用框架作的网页中，某个框架中的页面如果字符集设置没起作用，在 firefox 中显示乱码而且还没法改变（我是说在不装RightEncode插件的情况下）。

而我这里介绍的方法即使是把网页指定为 ISO-8859-1 字符集，也能够正确显示汉字、日文等。原理很简单，就是把除了 ISO-8859-1 编码中前128个字符以外的所有其他的编码都用 NCR(Numeric character reference) 来表示。比如“汉字”这两个字，如果我们写成“汉字”这种形式，那么它在任意字符集下都可以正确显示。根据这个原理，我写了下面这个程序，它可以把现有的网页转化为在任意字符集下都能显示的网页。你只需要指定源网页的字符集和源网页，点提交按钮，就可以得到目标网页了。你也可以只转化某些文字，只需要把文字填写到文本框中，并指定这些文字原来的字符集，点提交按钮，就会在页面上面显示编码后的文字了。另外我还编写了 WordPress 的插件，现在我的 Blog 已经可以在任意字符集下都能正确显示了。

转化程序地址：http://test.coolcode.cn/nochaoscode/

下载: nochaoscode.php

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#0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">iconv</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #dd0000">"UTF-16"</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$str</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">for</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">0</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700"><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">strlen</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$str</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #007700">++</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #007700">++</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #0000bb">$code</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">ord</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$str</span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #007700">}</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">*</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">256</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">+</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">ord</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$str</span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb">$i</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">+</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">1</span><span style="COLOR: #007700">}</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #007700">if</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$code</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700"><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">128</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">and</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">!</span><span style="COLOR: #0000bb">$isemail</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">            </span><span style="COLOR: #0000bb">$output</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">.=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">chr</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$code</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">else</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">if</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$code</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">!=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">65279</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">            </span><span style="COLOR: #0000bb">$output</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">.=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #dd0000">""</span><span style="COLOR: #007700">.</span><span style="COLOR: #0000bb">$code</span><span style="COLOR: #007700">.</span><span style="COLOR: #dd0000">";"</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">return</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$output</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$_POST</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'encode'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #007700">if</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">==</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #dd0000">''</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #dd0000">'UTF-8'</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #007700">if</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$_FILES</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'file'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'size'</span><span style="COLOR: #007700">]</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">></span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">0</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">$data</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">=</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">nochaoscode</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">file_get_contents</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$_FILES</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'file'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'tmp_name'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">header</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #dd0000">"Content-type: application/octet-stream;"</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">header</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #dd0000">"Content-length: "</span><span style="COLOR: #007700">.</span><span style="COLOR: #0000bb">strlen</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$data</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">header</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #dd0000">"Content-Disposition: attachment; filename="</span><span style="COLOR: #007700">.</span><span style="COLOR: #0000bb">$_FILES</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'file'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'name'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">echo</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$data</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">else</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #0000bb">header</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #dd0000">"Content-type: text/html; charset=UTF-8"</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">if</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$_POST</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'email'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">)</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #007700">echo</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">htmlentities</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">nochaoscode</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$_POST</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'email'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">true</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">else</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #007700">{</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">        </span><span style="COLOR: #007700">echo</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">htmlentities</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">nochaoscode</span><span style="COLOR: #007700">(</span><span style="COLOR: #0000bb">$encode</span><span style="COLOR: #007700">,</span><span style="COLOR: #0000bb"> </span><span style="COLOR: #0000bb">$_POST</span><span style="COLOR: #007700">[</span><span style="COLOR: #dd0000">'content'</span><span style="COLOR: #007700">]</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">)</span><span style="COLOR: #007700">;</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">    </span><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">?></span> </span></span></span>

<font face="新宋体"><span style="COLOR: #007700"><span style="COLOR: #007700">?</span><span style="COLOR: #0000bb">php</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #007700">}</span><span style="COLOR: #0000bb"> </span><br><span style="COLOR: #0000bb">?></span> </span></font>