Phar::offsetGet()
(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.0.0)
Gets a PharFileInfo object for a specific file
说明
public Phar::offsetGet(string $offset): int
This is an implementation of the ArrayAccess interface allowing direct manipulation of the contents of a Phar archive using array access brackets.Phar::offsetGet() is used for retrieving files from a Phar archive.
参数
- $offset
The filename(relative path)to look for in a Phar.
返回值
A PharFileInfo object is returned that can be used to iterate over a file's contents or to retrieve information about the current file.
错误/异常
This method throws BadMethodCallException if the file does not exist in the Phar archive.
范例
Phar::offsetGet() example
As with all classes that implement the ArrayAccess interface,Phar::offsetGet() is automatically called when using the[]angle bracket operator.
<?php $p = new Phar(dirname(__FILE__) . '/myphar.phar', 0, 'myphar.phar'); $p['exists.txt'] = "file exists\n"; try { // automatically calls offsetGet() echo $p['exists.txt']; echo $p['doesnotexist.txt']; } catch (BadMethodCallException $e) { echo $e; } ?>
以上例程会输出:
file exists Entry doesnotexist.txt does not exist
参见
- Phar::offsetExists() Determines whether a file exists in the phar
- Phar::offsetSet() Set the contents of an internal file to those of an external file
- Phar::offsetUnset() Remove a file from a phar