How to upload images into MySQL database using PHP code(如何使用 PHP 代码将图像上传到 MySQL 数据库)

How to repair a serialized string which has been corrupted by an incorrect byte count length?(如何修复因不正确的字节计数长度而损坏的序列化字符串?)

SQLSTATE[HY093]: Invalid parameter number: parameter was not defined(SQLSTATE[HY093]:参数号无效:参数未定义)

PHP/MySQL insert row then get #39;id#39;(PHP/MySQL 插入行然后获取 id)

MySQLi prepared statements error reporting(MySQLiprepared statements 错误报告)

quot;Connect failed: Access denied for user #39;root#39;@#39;localhost#39; (using password: YES)quot; from php function(“连接失败:用户 root@localhost 的访问被拒绝(使用密码:YES)来自 php 函数)

mysqli or die, does it have to die?(mysqli or die，它必须死吗?)

MySQL vs MySQLi when using PHP(使用 PHP 时的 MySQL 与 MySQLi)

Warning: mysqli_connect(): (HY000/1045): Access denied for user #39;username#39;@#39;localhost#39; (using password: YES)(警告:mysqli_connect(): (HY000/1045): Access denied for user username@localhost (using password: YES))

PHP PDO prepared statements(PHP PDO 准备好的语句)

Automated or regular backup of mysql data(自动或定期备份 mysql 数据)

Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.sock) in(警告:mysql_connect(): [2002] 没有这样的文件或目录(试图通过 unix:///tmp/mysql.sock 连接))

Fatal error: Call to undefined function mysqli_connect()(致命错误:调用未定义函数 mysqli_connect())

PHP mail function doesn#39;t complete sending of e-mail(PHP邮件功能没有完成电子邮件的发送)

How to prevent form resubmission when page is refreshed (F5 / CTRL+R)(页面刷新时如何防止表单重新提交(F5/CTRL+R))

How to access PHP variables in JavaScript or jQuery rather than lt;?php echo $variable ?gt;(如何在 JavaScript 或 jQuery 中访问 PHP 变量，而不是 lt;?php echo $variable ?gt;)

Parsing domain from a URL(从 URL 解析域)

Undefined function mysql_connect()(未定义函数 mysql_connect())

Redirect all to index.php using htaccess(使用 htaccess 将所有重定向到 index.php)

HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK(HTTPS 和 SSL3_GET_SERVER_CERTIFICATE:证书验证失败，CA 正常)