Returns true if the phar archive is based on the tar/phar/zip file format depending on the parameter

# Phar::isFileFormat

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 2.0.0)

Phar::isFileFormat — Returns true if the phar archive is based on the tar/phar/zip file format depending on the parameter

### Description

public Phar::isFileFormat(int `$format`): bool

### Parameters

`format`

  Either `Phar::PHAR`, `Phar::TAR`, or `Phar::ZIP` to test for the format of the archive.

### Return Values

Returns `true` if the phar archive matches the file format requested by the parameter

### Errors/Exceptions

PharException is thrown if the parameter is an unknown file format specifier.

### See Also

- Phar::convertToExecutable() - Convert a phar archive to another executable phar archive file format
- Phar::convertToData() - Convert a phar archive to a non-executable tar or zip file

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