file_get_contents cannot obtain the URL with port_PHP tutorial

This article will introduce to you the solution to the problem that file_get_contents cannot obtain the URL with port. Students who need to know more can refer to it.

Let’s first understand the file_get_contents() function. The official introduction says that it reads the entire file into a string.

Example

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

Output:

This is a test file with test text.

Similarly this function can also be used to obtain content on the remote server

file_get_contents('http://www.bKjia.c0m');

There is no problem in this way, but if I bring a port, there will be a problem

For example:

file_get_contents('http://localhost:12345');

Nothing is gained.

The solution is: turn off selinux

1 Permanent method – need to restart the server

Modify the /etc/selinux/config file to set SELINUX=disabled, and then restart the server.

2 Temporary method – Set system parameters

Use command setenforce 0

Attachment:

setenforce 1 Set SELinux to enforcing mode
setenforce 0 Set SELinux to permissive mode

php’s allow_url_fopen option is turned off

The reason is that the allow_url_fopen option of php is turned off in our php.ini, we just need to turn it on.

If you do not have permission to open allow_url_fopen, we can use the curl function to replace it, which is also a very easy way.