PHP chmod () function

 

chmod () function changes the file mode.

If successful it returns TRUE, otherwise returns FALSE.

example

? < PHP
 // owner can read and write, others do not have any permissions 
chmod ( " test.txt " , 0600 ); 

// owner can read and write, others read 
chmod ( " test.txt " , 0644 ); 

// owner has all the privileges, read and execute everyone else 
chmod ( " test.txt " , 0755 ); 

// owner has all the permissions, the owner's group readable 
chmod ( " test.txt " , 0740 );
 ?>

 

reference:

https://www.w3school.com.cn/php/func_filesystem_chmod.asp