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move_uploaded_file gives “failed to open stream: Permission denied” error
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This is because images and tmp_file_upload are only writable by root user. For upload to work we need to make the owner of those folders same as httpd process owner OR make them globally writable (bad practice).
Check apache process owner: $ps aux | grep httpd. The first column will be ...
Hiding a password in a python script (insecure obfuscation only)
...e script with elavated permission and have the password file owned by that root/admin user.
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SQL Server 2005 How Create a Unique Constraint?
...NIQUE (ColumnName1,ColumnName2, ColumnName3, ...)
The query supported by MySQL / SQL Server / Oracle / MS Access.
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cscope or ctags why choose one over the other? [closed]
... there any way to make ctags more accurate? I did make tags in the kernel root dir and have been playing with jumping around and most of the time end up in the wrong place. I read that ctags has problems with the c preprocessor, but considering that ctags is used in lxr there obviously must be som...
Installing a local module using npm?
...or maybe other applications?), there is some buzz around npm linking being root cause of specific kind of issue. Example here and here
– The Red Pea
Apr 20 '17 at 23:03
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iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...复杂。这样就给我们新接手项目的开发者带来很多困扰。如何快速查看一个复杂UI的界面层次和布局，最快的方法就是用到视图调试。
当项目运行到某一个界面（可以是模拟器或真机）时，开启视图调试，点击按钮如图：
这样...
How to remove local (untracked) files from the current Git working tree
...s). If you want to clean the whole working copy, you should call it in its root directory.
– Eduardo Bezerra
Mar 8 '13 at 10:51
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'sudo gem install' or 'gem install' and gem locations
...rse than just gem install is because it installs the gems for ALL USERS as root. This might be fine if you're the only person using the machine, but if you're not it can cause weirdness.
If you decide you want to blow away all your gems and start again it's much easier, and safer, to do so as a no...
CodeIgniter activerecord, retrieve last insert id?
...db->insert_id()
// it can be return insert id it is
// similar to the mysql_insert_id in core PHP
You can refer this link you can find some more stuff.
Information from executing a query
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NullPointerException accessing views in onCreate()
...ent onCreateView(), calling findViewById() on the inflated fragment layout rootView:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
View somethin...