Chmod (): Operationnotpermittedinphpscript.

Chmod (): Operationnotpermittedinphpscript. A PHP script. if a newly registered user uploads a file, mkdir (New folder of the user name), chmod (upload in this folder, 0777 ).
The result shows the error chmod (): Operation not permitted in a line of the php script.
SSH checks the permission for uploading files. if you do not use chmod, the default value is 0644. The reason why I want to change the file to 0777 permission is that the user can modify it if he is not satisfied with the upload.

This is probably the PHP script.

If ($ _ POST ['file']) {
// Mkdir () file_put_content () chmod () mysql_query ()
}

Reply to discussion (solution)

Operation not permitted
Operation not allowed

Apparently, the permission is insufficient.

Operation not permitted
Operation not allowed

Apparently, the permission is insufficient.

How can this problem be solved? So that every user can have the permission to subfolders under a folder in chmod 0777?

(1) Check that your php code file, its owner, is recommended to belong to the apache (nginx) user. in this way, the directory generated by the code will belong to the web user.
(2) set the directory permission to 700 and the file permission to 644 (readable and writable. we recommend that you do not grant the runable permission)

Look at the file? Token is ?.

(1) Check that your php code file, its owner, is recommended to belong to the apache (nginx) user. in this way, the directory generated by the code will belong to the web user.
(2) set the directory permission to 700 and the file permission to 644 (readable and writable. we recommend that you do not grant the runable permission)

Look at the file? Token is ?.

How to set file permissions? Chown apache: apache (or root: root) upload. php? In this case, can a common user execute this file in a browser?

? Set? OK? Limited to chmod a + x

? Set? OK? Limited to chmod a + x

Chmod was used, not chown.
Chmod I only add numbers ......

? Word 1 ?, But first?
Chmod 655 fiename