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.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
...sudo service apache2 restart
or
sudo a2enmod rewrite && sudo /etc/init.d/apache2 restart
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Transferring an app to another Firebase account
...
worked like a charm :) I wanted to add a new owner in order to switch google play account linked with Firebase project.
– Wahib Ul Haq
Jul 23 '17 at 18:34
7
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Dismissing a Presented View Controller
...esented, pushed onto a navigation controller, part of a tab bar controller etc. Using the delegate allows the "presenting" view controller to "dismiss" the view controller using the inverse of whatever method was used to present it.
– David Smith
Aug 2 '19 at 1...
Drop all tables whose names begin with a certain string
...My solution below avoids this and deletes tables in foreign key dependency order.
– Tony O'Hagan
Jul 19 '15 at 1:15
Th...
Why functional languages? [closed]
...o).
One of the biggest advantages with functional programming is that the order of execution of side-effect-free functions is not important. For example, in Erlang this is used to enable concurrency in a very transparent way.
And because functions in functional languages behave very similar to mat...
Download a file with Android, and showing the progress in a ProgressDialog
...t.setDescription("Some descrition");
request.setTitle("Some title");
// in order for this if to run, you must use the android 3.2 to compile your app
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
request.allowScanningByMediaScanner();
request.setNotificationVisibility(Down...
Sort a list by multiple attributes?
...ring']:
'''helper to sort by the attributes named by strings of attrs in order'''
return lambda k: [ getattr(k, attr) for attr in attrs ]
then to use it
# would defined elsewhere but showing here for consiseness
self.SortListA = ['attrA', 'attrB']
self.SortListB = ['attrC', 'attrA']
records =...
Is it possible to cache POST methods in HTTP?
... cache requires validation using conditional headers. This is required in order to refresh the cache content to avoid having the results of a POST not be reflected in the responses to requests until after the lifetime of the object expires.
...
What is the advantage of using heredoc in PHP? [closed]
...queries:
$sql = <<<SQL
select *
from $tablename
where id in [$order_ids_list]
and product_name = "widgets"
SQL;
To me this has a lower probability of introducing a syntax error than using quotes:
$sql = "
select *
from $tablename
where id in [$order_ids_list]
and product_nam...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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四、squid服务器的配置文件说明
squid 的主配置文件是 /etc/squid/squid.conf，所有squid的设定都是在这个文件里配置，下面我们来讲解一下该文件的配置选项。
http_port 3128 //设置监听的IP与端口号
cache_mem 64 MB ...