# What makes a phar a phar and not a tar or a zip?

## Table of Contents

- Ingredients of all Phar archives, independent of file format
- Phar file stub
- Head-to-head comparison of Phar, Tar and Zip
- Tar-based phars
- Zip-based phars
- Phar File Format
- Global Phar bitmapped flags
- Phar manifest file entry definition
- Phar Signature format

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