What are the opening tags and closing tags of php

Standard tags include: start tag: ``. Short tags: start tag: ``. Short form: start tag: `` to ensure code portability and readability.

In PHP, there are various forms of start tags and end tags that can be used to identify PHP code blocks. Common start tags and end tags include:

1. ##Standard start tag and end tag:
   Start tag: End tag: ?>
   
2. Short tag start tag and end tag:
   Start tag:End tag:?>
   
3. The abbreviation of short tag start tag and end tag:

   Start tag: No end tag, used to concisely output the value of the variable.

In the latest version of PHP, the standard opening tag

In general, it is recommended to use the standard end tag when writing PHP code to ensure the portability and readability of the code.

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