PHP Comments

pivopen pivopen
May 1, 2025 - 21:29 Updated: May 1, 2025 - 21:29
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In PHP, comments are used to explain code and make it more readable. They are ignored during execution. PHP supports three types of comments:

1. Single-line Comments

You can use either // or # for single-line comments.

// This is a single-line comment # This is also a single-line comment echo "Hello, World!"; ?>

2. Multi-line Comments

For comments that span multiple lines, use /* ... */.

/* This is a multi-line comment. It can span several lines. */ echo "Hello, World!"; ?>

Best Practices:

  • Use comments to explain why something is done, not what is done (if the code is self-explanatory).

  • Keep comments up-to-date with code changes.

  • Avoid over-commenting obvious code.