How to implement synonym replacement in php

How to implement synonym replacement in php: first create a PHP sample file; then define a "strtr_words" method; then obtain the vocabulary library through the "file_get_contents" function; finally implement synonym replacement through "explode" and other function methods. Can.

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php implements SEO pseudo-original synonym replacement function

Recently, I discussed with a friend the SEO pseudo-original issue of PHP regarding synonym replacement. I wrote the following function and made a plug-in for emlog.

function strtr_words($str) { $words=array(); $content = file_get_contents(‘words.txt’);//词库 $content = str_replace( “\r”, “”,$content); //去掉换行符(以便兼容Linux主机) $content = preg_split(‘/\n/’, $content, -1, PREG_SPLIT_NO_EMPTY);//\n分割字符 foreach($content as $k=>$v) { if($k!=0) { $str_data = explode(‘→’,$v);//关键词分割符 $words+=array(“$str_data[0]“=>”$str_data[1]“); } } return strtr($str,$words);//返回结果 }

The vocabulary words.txt format is as follows:

恳求→哀求 悲悼→哀伤 悲痛→哀思 悲伤→哀痛 顺序→挨次 受饿→挨饿 靠拢→挨近

Note that each line contains a set of synonyms, separated by "→".

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