Backend Development
PHP Tutorial
Summary of understanding the usage differences between print EOT delimiter and echo EOT in PHP_PHP Tutorial
Summary of understanding the usage differences between print EOT delimiter and echo EOT in PHP_PHP Tutorial
In HTML and PHP writing, echo can output multiple strings at the same time without parentheses. AI-powered app for creating realistic nude photos Online AI tool for removing clothes from photos. Undress images for free AI clothes remover Swap faces in any video effortlessly with our completely free AI face swap tool! Easy-to-use and free code editor Chinese version, very easy to use Powerful PHP integrated development environment Visual web development tools God-level code editing software (SublimeText3) 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 a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7 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 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 remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability. PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development. 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. PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.
Print can only output one string at the same time and requires parentheses.
The usage of print is very similar to C language, so % in the output content will be specially interpreted.
echo has no return value, print() has a return value, and returns false when its execution fails (such as disconnection).
echo can have multiple parameters and print can have one parameter. It is recommended to use echo.
Look at the following example to understand what print <<
print <<
$value ;
...
EOT;
Meaning:
<<< operator, the content between the custom delimiters is treated as a string, and the variables in between can be processed;
EOT custom delimiter, the end must be at the beginning of the line ;
Use the <<< tag
tag in the same page;
Note: Tag names appear in pairs, and more than two tag names with the same name are not allowed to appear on the same page;
Another: The trailing tagname of the paired tagname should be on a separate line, and characters before and after are not allowed to be output... (such as spaces and other invisible but existing characters...).
Advantages: This way you can output a large section of HTML without escaping the quotes or using "" to automatically replace the variables inside.
How to output html code (EOT) in php
PHP code
echo << ;< EOT
ClassID stuno Student name Parent name Parent mobile phone number
EOT;
?>
Detailed source reference: http://www.jb51.net/article/16022.htm
Hot AI Tools
Undresser.AI Undress
AI Clothes Remover
Undress AI Tool
Clothoff.io
Video Face Swap
Hot Article
Hot Tools
Notepad++7.3.1
SublimeText3 Chinese version
Zend Studio 13.0.1
Dreamweaver CS6
SublimeText3 Mac version
Hot Topics
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP in Action: Real-World Examples and Applications
Apr 14, 2025 am 12:19 AM
PHP's Purpose: Building Dynamic Websites
Apr 15, 2025 am 12:18 AM
PHP's Current Status: A Look at Web Development Trends
Apr 13, 2025 am 12:20 AM
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP vs. Python: Core Features and Functionality
Apr 13, 2025 am 12:16 AM
