Does php7 not support mysql?

The mysql library has been abolished in PHP7, so you can only use mysqli and PDO

mysqli object-oriented Style (Recommended learning: PHP video tutorial)

<?php
$serve = &#39;localhost:3306&#39;;
$username = &#39;root&#39;;
$password = &#39;admin123&#39;;
$dbname = &#39;examples&#39;;
$mysqli = new Mysqli($serve,$username,$password,$dbname);
if($mysqli->connect_error){
	die(&#39;connect error:&#39;.$mysqli->connect_errno);
}
$mysqli->set_charset(&#39;UTF-8&#39;); // 设置数据库字符集

$result = $mysqli->query(&#39;select * from customers&#39;);
$data = $result->fetch_all(); // 从结果集中获取所有数据
print_r($data);

 ?>

PDO connection database

<?php
$serve = &#39;mysql:host=localhost:3306;dbname=examples;charset=utf8&#39;;
$username = &#39;root&#39;;
$password = &#39;admin123&#39;;

try{ // PDO连接数据库若错误则会抛出一个PDOException异常
	$PDO = new PDO($serve,$username,$password);
	$result = $PDO->query(&#39;select * from customers&#39;);
	$data = $result->fetchAll(PDO::FETCH_ASSOC); // PDO::FETCH_ASSOC表示将对应结果集中的每一行作为一个由列名索引的数组返回
	print_r($data);
} catch (PDOException $error){
	echo &#39;connect failed:&#39;.$error->getMessage();
}

 ?>

You can use PDO or mysqli Connect to mysql, but it is more recommended to use PDO to connect to the database, because PDO supports 12 different database drivers, mysqli only supports mysql, and PDO has higher performance

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