Home  >  Article  >  Backend Development  >  Use the file_get_contents() function to read file contents

Use the file_get_contents() function to read file contents

藏色散人
藏色散人forward
2019-06-14 16:08:516787browse

file_get_contents() function reads the entire file

The file_get_contents() function is the preferred method for reading the contents of a file into a string. If supported by the operating system, memory mapping technology is also used to enhance performance.

Syntax:

file_get_contents(path,include_path,context,start,max_length)

Parameters:

path Required. Specifies the file to be read.

include_path Optional. If you also want to search for files in include_path, you can set this parameter to "1".

context is optional. Specifies the environment for a file handle.

context is a set of options that can modify the behavior of the stream. If null is used, it is ignored.

start Optional. Specifies the position in the file to begin reading. This parameter is new in PHP 5.1.

max_length Optional. Specifies the number of bytes to read. This parameter is new in PHP 5.1.

Explanation

Support for the context parameter was added in PHP 5.0.0.

Tips and Notes

Note: This function is safe to use on binary objects.

Example

text.txt Content: This is a test file with test text.

<?php
echo file_get_contents("test.txt");
?>

Output:

This is a test file with test text.

Prompt

file_get_contents can not only read txt, it can read files in all readable formats!

The above is the detailed content of Use the file_get_contents() function to read file contents. For more information, please follow other related articles on the PHP Chinese website!

Statement:
This article is reproduced at:hcoder.net. If there is any infringement, please contact admin@php.cn delete