【解决方案】Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in F:\Program Files (x86)\wamp\www\testmysql.php
on line 2

<?php
$link = mysql_connect('localhost','root','');
if (!$link) {
	die('Could not connect to MySQL: ' . mysql_error());
}
echo 'Connection OK'; mysql_close($link);
?> 

解决方案

将mysql改为mysqli

<?php 
$link = mysqli_connect('localhost','root',''); 
if (!$link) { 
<span style="white-space:pre">	</span>die('Could not connect to MySQL: ' . mysqli_error()); 
} 
echo 'Connection OK'; mysqli_close($link); 
?>