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# rpm_is_valid

(no version information, might be only in CVS)

rpm_is_valid -- Tests a filename for validity as an RPM file

## 说明

bool rpm_is_valid ( string filename )

rpm_is_valid() will test an RPM file for validity as an RPM file. This is not the same as rpm_open() as it only checks the file for validity but does not return a file pointer to be used by further functions.

## 参数

`filename`

  The filename of the RPM file you wish to check for validity.

## 返回值

如果成功则返回 `TRUE`，失败则返回 `FALSE`。

## 范例

例 1. rpm_is_valid() example

`<?php $file = "/path/to/file.rpm"; if (rpm_is_valid($file)) { echo "File is recognized as an RPM file.<br>\n"; } else { echo "File is not recognized as an RPM file.<br>\n"; } ?>`

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