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Error: Can't set headers after they are sent to the client
... if (err) res.send(err);
else res.json(doc2); // Will be called second.
})
res.json(doc1); // Will be called first.
}
});
Here we have an asynchronous function (findOneAndUpdate()) in the code sample. If there are no errors (err) findOneAndUpdate() will be called....
浅谈Heatmap：网页热点图生成原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...了一些随机生成的数据，以Imagick为例，代码如下：
<?php
$coordinates = array();
for ($i = 0; $i < 1000; $i++) {
$coordinates[] = array(rand($i, 1000), rand($i, 1000));
}
$max_repeat = max(
array_count_values(
array_map(function($v) { return "{$v[0]}x...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...制数据
【数据库】LeanDB 数据库扩展
【数据库】MySQL + php后端数据库
【数据库】MongoDB + php后端数据库
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What is an example of the simplest possible Socket.io example?
...t('time', { time: new Date().toJSON() });
}
// Send current time every 10 secs
setInterval(sendTime, 10000);
// Emit welcome message on connection
io.on('connection', function(socket) {
// Use socket to communicate with this particular client only, sending it it's own id
socket.emit('welco...
curl_exec() always returns false
...
+1: Simple and straight trouble-shooting for curl in PHP on curl_exec FALSE return. - Curl Verbose Mode in PHP example
– hakre
Nov 9 '12 at 20:10
...
How can I make git accept a self signed certificate?
...slCAInfo. Adam Spiers's answer gives some great examples. This is the most secure solution to the question.
To disable TLS/SSL verification for a single git command
try passing -c to git with the proper config variable, or use Flow's answer:
git -c http.sslVerify=false clone https://example.com/p...
Mechanisms for tracking DB schema changes [closed]
...e implemented their own language-specific versions. I know of Ruckusing, a PHP migrations system that is modelled after Rails' migrations; it might be what you're looking for.
share
|
improve this a...
Absolute vs relative URLs
... can be overcome with dynamic URLs and/or base tags.
<a href=“/index.php?q=”>.example.com/index.php?q=</a>
Root Relative Pros:
Configurable - The base tag makes them relative to any root you choose making switching domains and implementing templates easy.
Relative
Relative ...
Git command to show which specific files are ignored by .gitignore
...t. The first show me 4 files, and the second only two. (.gitignore~, index.php~, sql/create_users.sql~, www/index.php~) (Would remove .gitignore~, Would remove index.php~). Am I missins something here?
– Cesar
Jun 15 '11 at 21:00
...
Integrating Dropzone.js into existing HTML form with other fields
...al form, in $_POST and $_FILES (in the example this would happen in upload.php)
HTML
<form action="upload.php" enctype="multipart/form-data" method="POST">
<input type="text" id ="firstname" name ="firstname" />
<input type="text" id ="lastname" name ="lastname" />
&l...