在线文档教程
PHP
Phar

PharFileInfo::getCRC32

PharFileInfo::getCRC32

(PHP >= 5.3.0, PECL phar >= 1.0.0)

PharFileInfo::getCRC32 — Returns CRC32 code or throws an exception if CRC has not been verified

Description

public int PharFileInfo::getCRC32 ( void )

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

Return Values

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

Errors/Exceptions

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.

Examples

Example #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; } ?>

The above example will output:

3633523372

← PharFileInfo::delMetadata

PharFileInfo::getCompressedSize →

© 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/pharfileinfo.getcrc32.php