Teach you step by step how to do keyword matching project (search engine)----On the first day, teach you how to do it----_PHP tutorial

Teach you step by step how to do a keyword matching project (search engine)----The first day, teach you how to do----

The first day

Received requirements, the requirements are as follows:

1. Collect keywords and build a keyword database.

After receiving this task, my first thought was, isn’t this simple? Start immediately to create a keyword entry interface and save it to the database. The first step was completed, and I laughed all day long. I didn’t expect that things turned out to be so simple.

Database configuration file: config.php

<span>$database_host</span> = 192.168.1.1
<span>$database_user</span> =<span> xiaoshuaishuai
</span><span>$database_password</span> =<span> xiaoshuaishuai
</span><span>$database_charset</span> = "utf-8"

Backend logic processing: keywords.php

<?<span>php

</span><span>include</span> "config.php"

<span>$keywords</span> = <span>$_REQUEST</span>["keywords"<span>];

</span><span>$con</span> = <span>mysql_connect</span>(<span>$database_host</span>,<span>$database_user</span>,<span>$database_password</span><span>);
</span><span>mysql_query</span>("SET NAMES '<span>$database_charset</span>'",<span>$conn</span><span>);
</span><span>mysql_select_db</span>("dict",<span>$conn</span><span>);

</span><span>foreach</span>(<span>$keywords</span> <span>as</span> <span>$keyword</span><span>){

      </span><span>//</span><span>save $keyword to database</span>
      
      <span>$sql</span> = "insert into keywords(word) values ('<span>$keyword</span>')"<span>;
      </span><span>mysql_query</span>(<span>$sql</span>,<span>$conn</span><span>);     
    
}

</span><span>mysql_close</span>(<span>$conn</span>);

How do search terms in Baidu search engine match promotional keywords?

Currently, Baidu promotion has three matching methods: precise, phrase, and broad. Generally speaking, the golden combination matching method is: broad matching + search term report + negative keywords. In terms of traffic, it's broad>phrase>accurate. You can set it according to your actual situation!

When searching with a search engine, if there are three keywords and you want an exact match, how should you enter them?

If you want an exact match, you need to put quotes around ABC.

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