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PHP5中文手册

Phar::offsetGet

(PECL phar:1.0.0-1.2.1)

Phar::offsetGet — get a PharFileInfo object for a specific file

说明

int Phar::offsetGet ( string $offset )

This is an implementation of the ArrayAccess interface allowing direct manipulation of the contents of a Phar archive using array access brackets. 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

Example#1 A Phar::offsetGet() example

As with all classes that implement the ArrayAccess interface, 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;
}
?>

上例将输出:

file exists
Entry doesnotexist.txt does not exist