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# PharFileInfo->getCRC32

(no version information, might be only in CVS)

PharFileInfo->getCRC32 -- Returns CRC32 code or throws an exception if not CRC checked

## 说明

int PharFileInfo->getCRC32 ( void )

This returns the crc32() checksum of the file within the Phar archive.

## 返回值

The crc32() checksum of the file within the Phar archive.

## 错误／异常

Throws BadMethodCallException if the file has not yet had its CRC32 verified. This should be impossible with normal use, as the CRC is verified upon opening the file for reading or writing.

## 范例

例 1. A PharFileInfo->getCRC32() example

`<?php try { $p = new Phar('/path/to/my.phar', 0, 'my.phar'); $p['myfile.txt'] = 'hi'; $file = $p['myfile.txt']; echo $file->getCRC32(); } catch (Exception $e) { echo 'Write operations on my.phar.phar failed: ', $e; } ?>`

上例将输出：

    3633523372

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