... MySQL's utf8 permits only the Unicode characters that can be represented with 3 bytes in UTF-8. Here you have a character that needs 4 bytes: \xF0\x90\x8D\x83 (U+10343 GOTHIC LETTER SAUIL). If you have MySQL 5.5 or later you...

I'm wondering if there is a "best" choice for collation in MySQL for a general website where you aren't 100% sure of what will be entered? I understand that all the encodings should be the same, such as MySQL, Apache, the HTML and anything inside PHP. ...

... 发送和接收文本 (URSAI2UDPTest) 此示例展示了如何发送和接收文本。 示例中的块并不难理解。大多数块涉及输入项的验证。 发送和接收字节数组 (UDPBinaryTest) 此示例展示了如何发送和接收字节...

... Activity启动器（ActivityStarter）如何查看并启动其他App App包名和类名的查看 不同品牌手机可能略有不同 « 返回 App包名和类名的查看 由 App Inventor 2 创建的应用要弄...

在inventor中如何实现调用相册功能选择图片设置成用户头像功能呢，就是类似于微信中点击头像会弹出从相册中选择或者拍照来设置头像的功能 多媒体下面的组件可以实现，具体用法参考中文文档：https://www.fun123.cn/reference/comp...

...getting data completely. And reasons are - imagine that you don't just use MySQL (in my case, I use MySQL and MongoDB side by side), but you can get your data from any data provider and any transport method, e.g. SQL, no-SQL, filesystem, external API, FTP, SSH etc. If you tried to do all of it in th...

What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query? ...

I have searched the net and so far what I have seen is that you can use mysql_ and mysqli_ together meaning: 4 Answers ...

...：存储、集群管理 用户等效性：两台机器数据交换不用密码 *996K

...：存储、集群管理 用户等效性：两台机器数据交换不用密码 *996K