deprecated: mysql_connect(): the mysql extension is deprecated and will be removed in the future: use mysqli or pdo instead in /applications/xampp/xamppfiles/htdocs/phptest1/needlist.php
回复内容： deprecated: mysql_connect(): the mysql extension is deprecated and will be removed in the future: use mysqli or pdo instead in /applications/xampp/xamppfiles/htdocs/phptest1/needlist.php
php的mysql扩展在php 5.5被标识为弃用（deprecated）
在php7中被删除
请用mysqli或者pdo替换
php的mysql的确被弃用了。不过还是可以用的。把错误级别修改一下就行了