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  • Phar::offsetGet()

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

    Gets a PharFileInfo object for a specific file

    说明

    publicPhar::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