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.rar, .zip files MIME Type
...function isRarOrZip($file) {
// get the first 7 bytes
$bytes = file_get_contents($file, FALSE, NULL, 0, 7);
$ext = strtolower(substr($file, - 4));
// RAR magic number: Rar!\x1A\x07\x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0...
Prevent browser caching of AJAX call result
... multiple requests happening within the same millisecond:
$.get('/getdata?_=' + new Date().getTime(), function(data) {
console.log(data);
});
Edit: This answer is several years old. It still works (hence I haven't deleted it), but there are better/cleaner ways of achieving this now. My prefe...
What is the difference between Numpy's array() and asarray() functions?
...rator); always copied.
There are also convenience functions, like asarray_chkfinite (same copying rules as asarray, but raises ValueError if there are any nan or inf values), and constructors for subclasses like matrix or for special cases like record arrays, and of course the actual ndarray const...
Can I replace groups in Java regex?
...
replace the password fields from the input:
{"_csrf":["9d90c85f-ac73-4b15-ad08-ebaa3fa4a005"],"originPassword":["uaas"],"newPassword":["uaas"],"confirmPassword":["uaas"]}
private static final Pattern PATTERN = Pattern.compile(".*?password.*?\":\\[\"(.*?)\"\\](,\"|}$...
PHP how to get local IP of system
...
From CLI
PHP < 5.3.0
$localIP = getHostByName(php_uname('n'));
PHP >= 5.3.0
$localIP = getHostByName(getHostName());
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...
WebService Client Generation Error with JDK8
...http://docs.oracle.com/javase/7/docs/api/javax/xml/XMLConstants.html#ACCESS_EXTERNAL_SCHEMA)
Create a file named jaxp.properties (if it doesn't exist) under /path/to/jdk1.8.0/jre/lib and then write this line in it:
javax.xml.accessExternalSchema = all
That's all. Enjoy JDK 8.
...
Static variables in JavaScript
...cut, you could just do countMyself.counter = countMyself.counter || initial_value; if the static variable is never going to be falsey (false, 0, null, or empty string)
– Kip
Sep 23 '11 at 17:25
...
How to set a cookie for another domain
...ie and redirect to the correct page on b.com
<?php
setcookie('a', $_GET['c']);
header("Location: b.com/landingpage.php");
?>
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How do I parse a string to a float or int?
...
Python method to check if a string is a float:
def is_float(value):
try:
float(value)
return True
except:
return False
A longer and more accurate name for this function could be: is_convertible_to_float(value)
What is, and is not a float in Python may surpris...
What is the difference between the kernel space and the user space?
...ered Mar 26 '12 at 7:06
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