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Is there a use-case for singletons with database access in PHP?
...
Singletons have very little - if not to say no - use in PHP.
In languages where objects live in shared memory, Singletons can be used to keep memory usage low. Instead of creating two objects, you reference an existing instance from the globally shared application memory. In PHP ...
Branch descriptions in Git
...ut so that your README is displayed every time you switch branches.
For example, add this in ~/.gitconfig, under [alias]
cor = !sh -c 'git checkout $1 && cat README' -
After this, you can run git cor <branch_name> to switch branch and display the README of the branch you're switchi...
What is the difference between SAX and DOM?
..."DOM parsers".) That would be very handy for the user (I think that's what PHP's XML parser does), but it suffers from scalability problems and becomes very expensive for large documents.
On the other hand, event-based parsing, as done by SAX, looks at the file linearly and simply makes call-backs ...
Git: How to remove file from index without deleting files from any repository
..., they will get conflicts. To resolve such conflicts, use git rm foo.conf && git rebase --continue (if the conflicting commit has changes besides those to the removed file) or git rebase --skip (if the conflicting commit has only changed to the removed file).
Restore File as Untracked After...
window.location.reload with clear cache [duplicate]
...
window.location = window.location.href+'?eraseCache=true';
}
Then, in PHP let's say, you do something like this:
<head>
<?php
if (isset($_GET['eraseCache'])) {
echo '<meta http-equiv="Cache-control" content="no-cache">';
echo '<meta http-equiv="Expires" co...
window+nginx+php-cgi的php-cgi线程/子进程问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
window+nginx+php-cgi的php-cgi线程/子进程问题见bbshttp: bbs csdn net topics 390803643 close正常的配置情况下,window的php-cgi是不会出现多线程 子进程的,例如以下配置fastcgi_pass 见bbs
http://bbs.csdn.net/topics/390803643/close
正常的配置情况下,window...
What Does This Mean in PHP -> or => [duplicate]
I see these in PHP all the time but I don't have a clue as to what they actually mean. What does -> do and what does => do. And I'm not talking about the operators. They're something else, but nobody seems to know...
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How much faster is C++ than C#?
...mance of C++ and C#: https://benchmarksgame.alioth.debian.org/u64q/compare.php?lang=gpp&lang2=csharpcore
The bottom line is that C++ gives you much more control over performance. Do you want to use a pointer? A reference? Stack memory? Heap? Dynamic polymorphism or eliminate the runtime o...
Waiting on a list of Future
... });
}
int received = 0;
boolean errors = false;
while(received < 4 && !errors) {
Future<SomeResult> resultFuture = completionService.take(); //blocks if none available
try {
SomeResult result = resultFuture.get();
received ++;
... // do som...
How to query SOLR for empty fields?
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@YzmirRamirez I've tried with the example of Solr 4.5.1 and ?q=-id:* seems to work as expected. Maybe the parsing error is related to this issue.
– user2043553
Dec 8 '14 at 11:28
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