PHP prompt Deprecated: mysql_connect(): The mysql extension is deprecated solution, deprecated_PHP tutorial

PHP prompt Deprecated: mysql_connect(): The mysql extension is deprecated solution, deprecated

The example in this article describes the solution to the PHP prompt Deprecated: mysql_connect(): The mysql extension is deprecated. This type of problem is often encountered in PHP program development. Share it with everyone for your reference. The specific solutions are as follows:

Change the following code to mysqli or PDO.

function connectit () { 
global $CFG; 
mysql_connect($CFG['db_host'], $CFG['db_user'], $CFG['db_pass']) or die(mysql_error()); 
mysql_select_db($CFG['db_name']); 
} 

PDO:

$dbh = new PDO('mysql:host=localhost;dbname=test', $user, $pass); 

MYSQLI:

$link = mysqli_connect( 
 'localhost', /* The host to connect to 连接MySQL地址 */   
 'user',   /* The user to connect as 连接MySQL用户名 */   
 'password', /* The password to use 连接MySQL密码 */   
 'world');  /* The default database to query 连接数据库名称*/   

if (!$link) { 
  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); 
  exit; 
}

I hope this article will be helpful to everyone’s PHP programming design.

mysql_connect(): The mysql extension is deprecated problem

Reference answer: I can’t hear the sound of a rainbow appearing, and I can’t hear the sound of the sun setting.

How to disable the prompt that appears when calling PHP MYSQL functions

Write error_reporting(E_ALL & ~E_DEPRECATED) at the top of php; ignore the error

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