What should I do if the phpcms v9 installation cannot connect to the database?

What should I do if the phpcms v9 installation cannot connect to the database?

phpcms v9 installation prompts "database connection error" solution

Description:

I am building phpcms today v9 program, the installation program keeps prompting "Unable to connect to the database server, please check the configuration" until the fifth step. It feels very strange. My server configuration is correct. After entering the correct account and password several times, it still prompts that it cannot connect. . So I searched for it and finally solved it. Now I share it. I hope it will be useful to you.

The problem is as shown in the picture:

Reason:

phpcms v9 installer code against the submitted password Special characters (such as &$^!@#) are not escaped.

Solution:

Modify install/step5.tpl.php 127 behavior:

'&dbpw='+escape($('#dbpw').val())

2. Modify install/step6.tpl.php 55 Behavior:

var
dbpw = escape(&#39;<?=$dbpw?>&#39;);

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