What is the start tag of php language

The opening tag (Opening Tag) of the PHP language refers to the "

PHP is a scripting language used for web development that can be used with other front-end technologies such as HTML, CSS, and JavaScript. When writing PHP scripts, you need to put the code in tags so that the server can recognize and process these codes. The start tag refers to the starting point of the code.

When using the opening tag, you can write PHP code in it. For example, here is a simple PHP script example:

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In this example, the code between is interpreted as PHP code, and echo "Hello World!" A PHP command will output the string "Hello World!" in the browser.

In addition to " " tags starting with ". However, the use of these tags is no longer recommended as they may not work properly in some environments.

It should be noted that the closing tag (Closing Tag) is not necessary. At the end of the PHP file, there is no need to use "?>" to mark the end. If the PHP file only contains PHP code, it is also generally recommended not to use a closing tag to avoid spaces or newlines at the end of the file that can cause unnecessary output or errors.

In short, the PHP start tag is a symbol that identifies the starting point of PHP code. It can be used to embed PHP code in a Web page and interpret it as a server-side script. Learning this simple markup is very basic and important when writing PHP code.

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