Some common summary of PHP user registration_PHP tutorial
Some common summaries commonly used when PHP users register, including testing whether the username format is consistent, testing whether the username format is consistent, testing whether the parameter values are the same, testing whether the parameters are Chinese, etc.
代码如下 | 复制代码 |
/** * Check检测类 */ Class Check{ /** * IsUsername函数:检测是否符合用户名格式 * $Argv是要检测的用户名参数 * $RegExp是要进行检测的正则语句 * 返回值:符合用户名格式返回用户名,不是返回false */ function IsUsername($Argv){ $RegExp=/^[a-zA-Z0-9_]{3,16}$/; //由大小写字母跟数字组成并且长度在3-16字符直接 return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsMail函数:检测是否为正确的邮件格式 * 返回值:是正确的邮件格式返回邮件,不是返回false */ function IsMail($Argv){ $RegExp=/^[a-z0-9][a-z.0-9-_] @[a-z0-9_-] (?:.[a-z]{0,3}.[a-z]{0,2}|.[a-z]{0,3}|.[a-z]{0,2})$/i; return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsSmae函数:检测参数的值是否相同 * 返回值:相同返回true,不相同返回false */ function IsSame($ArgvOne,$ArgvTwo,$Force=false){ return $Force?$ArgvOne===$ArgvTwo:$ArgvOne==$ArgvTwo; } /** * IsQQ函数:检测参数的值是否符合QQ号码的格式 * 返回值:是正确的QQ号码返回QQ号码,不是返回false */ function IsQQ($Argv){ $RegExp=/^[1-9][0-9]{5,11}$/; return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsMobile函数:检测参数的值是否为正确的中国手机号码格式 * 返回值:是正确的手机号码返回手机号码,不是返回false */ function IsMobile($Argv){ $RegExp=/^(?:13|15|18)[0-9]{9}$/; return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsTel函数:检测参数的值是否为正取的中国电话号码格式包括区号 * 返回值:是正确的电话号码返回电话号码,不是返回false */ function IsTel($Argv){ $RegExp=/[0-9]{3,4}-[0-9]{7,8}$/; return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsNickname函数:检测参数的值是否为正确的昵称格式(Beta) * 返回值:是正确的昵称格式返回昵称格式,不是返回false */ function IsNickname($Argv){ $RegExp = '/^s*$|^c:concon$|[%,*"st&'()]|xA1xA1|xACxA3|^Guest|^xD3xCExBFxCD|xB9x43xABxC8/is'; //Copy From DZ return preg_match($RegExp,$Argv)?$Argv:false; } /** * IsChinese函数:检测参数是否为中文 * 返回值:是返回参数,不是返回false */ function IsChinese($Argv,$Encoding=utf8){ $RegExp = $Encoding==utf8?/^[x{4e00}-x{9fa5}] $/u:/^([x80-xFF][x80-xFF]) $/; Return preg_match($RegExp,$Argv)?$Argv:False; } } ?> |

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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