The basic syntax and structure of PHP code follow a set of rules that define how PHP scripts are written. Understanding this syntax is fundamental for writing PHP code effectively. Let's dive into the details:
1. Opening and Closing Tags:
* PHP code is enclosed within `<?php` and `?>` tags.
* These tags indicate the start and end of PHP code within an HTML document.
2. Outputting Content:
* To output content or variables to the browser, you use the `echo` statement or `print` function.
* For example, `echo "Hello, World!";` or `print("Welcome!");`.
3. Variables:
* Variables in PHP start with a dollar sign (`$`) followed by the variable name.
* Variable names are case-sensitive and can contain letters, numbers, and underscores.
* Variables do not require explicit type declaration.
* Example: `$name = "John Doe";`.
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