File system function Library: ReadFile

Source: Internet
Author: User
Keywords PHP Chinese function Manual ReadFile file system function library
Tags aliyun error error message file file system function library ftp function function library

ReadFile

(PHP3, PHP4)

ReadFile---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Output file

Syntax: int ReadFile (string filename [, int use_include_path])

Description:

Read the file and write it to standard output.

Returns the bit-tuple size read from a file, which returns False if an error occurs, and displays an error message, unless it is called in @readfile (), and the error message is not displayed.

If filename starts with "http://", the HTTP1.0 opens the link to the specified server and writes the reply (response) text to the standard output.

Cannot handle HTTP steering (redirects), so must include an extended slash (slashes) on the directory.

If filename is started with "ftp://", FTP opens the connection to the specified server and writes the requested file to standard output, which fails if the server does not provide passive mode FTP (Passive mode FTP).

If filename does not begin with a string of both, the file is opened from the file system and its contents are written to standard output.

If you want to search for files in include_path, you can use the second argument and set it to 1.

Reference: Fpassthru () file () fopen () include () require () virtual ()

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