如何在Mac OS X上从mysql / PHP删除符号链接？

Question

在使用apache2，mysql和PHP的Mac OS X 10.12安装上通过本地主机运行PHP代码时，出现以下错误。

Warning: mysqli_connect(): (HY000/2002): Too many levels of symbolic links in /Users/kevin/Sites/quest/includes/db_connection.php on line 7 Database connection failed: Too many levels of symbolic links (2002)

我在usr / lib / php目录或usr / local / mysql目录中未找到任何递归符号链接。如何解决此错误？

    <?php
    define("DB_SERVER", "localhost");
    define("DB_USER", "<my usr>");
    define("DB_PASS", "<my pass>");
    define("DB_NAME", "<my db>");
        //creates a database connection
        $connection = mysqli_connect(DB_SERVER, DB_USER, DB_PASS, DB_NAME);
        // tests connection for errors
        if(mysqli_connect_errno()) {
            die("Database connection failed: ".
                        mysqli_connect_error() .
                        " (" . mysqli_connect_errno() . ")"
            );
        }

    ?>