How to solve php is_writable failure problem

Solution to the failure of php is_writable: 1. Open the command window; 2. Execute "chcon -R -t httpd_sys_content_rw_t /var/www/html".

The operating environment of this article: centos7 system, PHP7 version, DELL G3 computer

How to solve the problem of php is_writable failure?

Specific problem description:

PHP7 is_writable always returns false!

My server is centos 7, and test.txt is just a test file I created on /var/www/html.

Permission is 766 1 root root test.txt

Modified nobody through chmod [Because php.net said that this function uses the identity of nobody for web access]

766 1 nobody root test.txt

<?php
$filename = &#39;test.txt&#39;;
if (is_writable($filename)) {
echo &#39;The file is writable&#39;;
} else {
echo &#39;The file is not writable&#39;;
}
?>

The final result is that it can be written when compiling on the server, but cannot be written when accessing the web. How to do it?

Solution:

chcon -R -t httpd_sys_content_rw_t /var/www/html

Recommended study: "PHP Video Tutorial"

The above is the detailed content of How to solve php is_writable failure problem. For more information, please follow other related articles on the PHP Chinese website!