PHP Manual
PharFileInfo
Returns CRC32 code or throws an exception if CRC has not been verified

PharFileInfo::getCRC32

(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.0.0)

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

说明

public PharFileInfo::getCRC32 ( void ) : int

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

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;
}
?>

以上例程会输出：

3633523372

php ktaglib mpeg audioproperties returns if protection mechanisms of an mpeg file are enabled php intlchar check if code point is a digit character php intlchar check if code point has the alphabetic unicode property php mongocommandcursor checks if there are results that have not yet been sent from the database php mongocursor checks if there are results that have not yet been sent from the database php mongocursorinterface checks if there are results that have not yet been sent from the database php phar returns true if the phar archive can be modified php pharfileinfo returns crc32 code or throws an exception if crc has not been verified php pharfileinfo returns whether the entry is compressed using bzip2 php pharfileinfo returns whether file entry has had its crc verified php recursiveiterator returns if an iterator can be created for the current entry php solrclientexception returns internal information where the exception was thrown php solrquery returns whether or not to enable highlighting for range/wildcard/fuzzy/prefix queries php solrquery returns whether or not to include the lower bound in the result set php swffont returns the ascent of the font or 0 if not available php swffont returns the descent of the font or 0 if not available php swffont returns the leading of the font or 0 if not available php swftext returns the ascent of the current font at its current size or 0 if not available php swftext returns the descent of the current font at its current size or 0 if not available php swftext returns the leading of the current font at its current size or 0 if not available