dousui7410 2016-03-02 07:05
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PHP:无法从浏览器运行脚本,但从linux终端执行时工作正常

I am trying to connect to a remote mysql server using PDO php script. Script is working fine when run from the terminal.I am able to connect to the remote mysql database.

function db_connect($host, $username, $password, $db_name){
global $conn;
try{
    $conn =  new PDO("mysql:host=$host;dbname=$db_name", $username, $password);
    $conn -> setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "success";
}

catch(PDOException $e)
    {
        echo "Connection failed: " . $e->getMessage();
    }
}

But when I run this php script from browser, I got following error-

ERROR:SQLSTATE[HY000] [2003] Can't connect to MySQL server 

First I though it is because I am running the script from root user. But I tested it with a test user and it still runs from terminal but not from the browser. I am also able to connect to the database from mysql workbench. I don't know the cause. Please suggest some solution.

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