PharFileInfo::delMetadata
(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.2.0)
PharFileInfo::delMetadata — Deletes the metadata of the entry
说明
public
PharFileInfo::delMetadata (
void ) :
bool
Deletes the metadata of the entry, if any.
参数
No parameters.
返回值
Returns TRUE if successful, FALSE if the entry had no metadata. As with all functionality that modifies the contents of a phar, the phar.readonly INI variable must be off in order to succeed if the file is within a Phar archive. Files within PharData archives do not have this restriction.
错误／异常
Throws PharException if errors occurred while flushing changes to disk, and BadMethodCallException if write access is disabled.
范例
Example #1 A PharFileInfo::delMetaData() example
<?php
try {
$a = new Phar('myphar.phar');
$a['hi'] = 'hi';
var_dump($a['hi']->delMetadata());
$a['hi']->setMetadata('there');
var_dump($a['hi']->delMetadata());
var_dump($a['hi']->delMetadata());
} catch (Exception $e) {
// handle errors
}
?>
以上例程会输出：
bool(false) bool(true) bool(false)
参见
- PharFileInfo::setMetadata() - Sets file-specific meta-data saved with a file
- PharFileInfo::hasMetadata() - Returns the metadata of the entry
- PharFileInfo::getMetadata() - Returns file-specific meta-data saved with a file
- Phar::setMetadata() - Sets phar archive meta-data
- Phar::hasMetadata() - Returns whether phar has global meta-data
- Phar::getMetadata() - Returns phar archive meta-data
