Solve the problem of file_get_contents returning false when reading large files in PHP_PHP Tutorial

The file_get_contents file is used to read and write files, but I found an error message when using file_get_contents to read large files. Note: string can be as large as 2GB. This cannot exceed 2G. Is there a way to solve it? Below I Come and see it together.

If I read a www.bKjia.c0m file

The code is as follows

代码如下	复制代码
$u ='www.bKjia.c0m'; //此文件为100GB $a =file_get_contents( $u );

Copy code

$u ='www.bKjia.c0m'; //This file is 100GB

$a =file_get_contents( $u );

Run Tips

Note: string can be as large as 2GB

It cannot be larger than 2GB. Let’s go to the official website to see this function reference

代码如下	复制代码
$u ='www.bKjia.c0m'; //此文件为100GB $a =file_get_contents( $u,100,1000 );

string file_get_contents ( string $filename [, bool $use_include_path = false [, resource $context [, int $offset = -1 [, int $maxlen ]]]] )

I found one

file_get_contents() reads the file into a string. Contents of length maxlen will be read starting at the position specified by the offset parameter. On failure, file_get_contents() returns FALSE.

That’s it, let’s modify the program

$u ='www.bKjia.c0m'; //This file is 100GB

The code is as follows	Copy code

$a =file_get_contents( $u,100,1000 );

Reading successful Summary If file_get_contents returns normally, it will store the file content in a string, so it should not return a string exceeding 2G in length. If the file content exceeds 2G, calling file_get_contents without adding offset and maxlen will definitely return false,

http://www.bkjia.com/PHPjc/633183.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633183.htmlTechArticleThe file_get_contents file is used to read and write files, but I found an error message when reading large files using file_get_contents Note: string can be as large as 2GB, this cannot exceed 2G,...