Test PHP connection MySQL

Source: Internet
Author: User
Tags phpinfo

    • I built the lamp on Linux and I tested Apache + PHP earlier.
    • Create a PHP test under the/var/www/html/directory phpinfo.php
[[email protected] ~]# cd/var/www/html///                Enter httpd default Site directory [[email protected] html]# vim phpinfo.php               // Create and edit phpinfo.php<?phpphpinfo ();? >
    • Access, see effects

    • and tested Php+mysql.
    • Create a PHP connection to MySQL test file under the/var/www/html/directory mysql_connect_db.php
[[email protected] html]# vim mysql_connect_db.php          //Create and edit Mysql_connect_db.php<?php$link = mysql_connect (' 192.168.1.190 ', ' root ', ' root '), if (! $link) {die (' Connection failed: '. mysql_error ());} Else{echo ' connection succeeded ';} Mysql_close ($link);? >
    • Access, see effects

    • Problems encountered and their solutions
    • When I write good mysql_connect_db.php save and exit
    • Access, see the effect, the following error

    • Above error obvious password error

    • Another situation
    • Access, see the effect, the following error

    • Workaround:
[[email protected] ~]# Setenforce 0              //temporarily off SELinux

  

Test PHP connection MySQL

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