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How can I detect if the user is on localhost in PHP?
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Newer OS users (Win 7, 8) may also find it necessary to include an IPV6-format remote address in their whitelist array:
$whitelist = array('127.0.0.1', "::1");
if(!in_array($_SERVER['REMOTE_ADDR'], $whitelist)){
// not valid
}
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Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...in it. Ideally, singletons should be injected into code as a protocol, allowing you to switch out the implementation. But if you already have one embedded inside your code, you can add a category of the singleton in your unit test and overide the sharedInstance and the methods you what to control to...
Stopping python using ctrl+c
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On Windows, the only sure way is to use CtrlBreak. Stops every python script instantly!
(Note that on some keyboards, "Break" is labeled as "Pause".)
s...
How long should SQL email fields be? [duplicate]
...ng so any size I impose on my varchar email address field is going to be arbitrary. However, I was wondering what the "standard" is? How long do you guys make it? (same question for Name field...)
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Keyboard shortcut to paste clipboard content into command prompt window (Win XP) [closed]
...rd shortcut for pasting the content of the clipboard into a command prompt window on Windows XP (instead of using the right mouse button)?
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How to search a Git repository by commit message?
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Though a bit late, there is :/ which is the dedicated notation to specify a commit (or revision) based on the commit message, just prefix the search string with :/, e.g.:
git show :/keyword(s)
Here <keywords> can be a single wo...
Using bitwise OR 0 to floor a number
A colleague of mine stumbled upon a method to floor float numbers using a bitwise or:
6 Answers
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How do I disable the 'Debug / Close Application' dialog on Windows Vista?
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I had to disable this for release automation work on Windows 64-bits for Firefox and I did the following:
gpedit.msc
Computer configuration -> Administrative Templates
Windows Components -> Windows Error Reporting
Set "Prevent display of the user interface for critical errors" to ...
Python: changing value in a tuple
...le in-memory. Relying on various implementation details of CPython on a 64-bit system, one way to do this is as follows:
def modify_tuple(t, idx, new_value):
# `id` happens to give the memory address in CPython; you may
# want to use `ctypes.addressof` instead.
element_ptr = (ctypes.c_l...
\d is less efficient than [0-9]
... not [0-9].
You can generate a list of all such characters using the following code:
var sb = new StringBuilder();
for(UInt16 i = 0; i < UInt16.MaxValue; i++)
{
string str = Convert.ToChar(i).ToString();
if (Regex.IsMatch(str, @"\d"))
sb.Append(str);
}
Console.WriteLine(sb.ToStr...