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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
关于php的socket初探做了好几年的flash的aser，技术一直停留在flash这个狭小的容器内，最近转向php，才慢慢体会到之前充实技术开发前的那段极度渴望去学习新知...做了好几年的flash的aser，技术一直停留在flash这个狭小的容器内，...
How do I execute a string containing Python code in Python?
...//lucumr.pocoo.org/2011/2/1/exec-in-python/ (emphasis mine)
Python is not PHP
Don't try to circumvent Python idioms because some other language does it differently. Namespaces are in Python for a reason and just because it gives you the tool exec it does not mean you should use that tool.
It is da...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
I successfully implemented the OpenCV square-detection example in my test application, but now need to filter the output, because it's quite messy - or is my code wrong?
...
How do you get a timestamp in JavaScript?
...s. You could work with milliseconds but as soon as you pass a value to say PHP, the PHP native functions will probably fail. So to be sure I always use the seconds, not milliseconds.
This will give you a Unix timestamp (in seconds):
var unix = Math.round(+new Date()/1000);
This will give you the...
What is an alternative to execfile in Python 3?
...
@Rebs you don't need to close the file handle in that example, it will be done automatically (at least in regular CPython)
– tiho
Feb 1 '17 at 20:16
4
...
node.js fs.readdir recursive directory search
...ve(dir, file);
fs.stat(file, function(err, stat) {
if (stat && stat.isDirectory()) {
walk(file, function(err, res) {
results = results.concat(res);
if (!--pending) done(null, results);
});
} else {
results.push(file)...
PHP multidimensional array search by value
... or just use == instead ===.
Based on angoru answer. In later versions of PHP (>= 5.5.0) you can use one-liner.
$key = array_search('100', array_column($userdb, 'uid'));
Here is documentation: http://php.net/manual/en/function.array-column.php.
...
When should you use constexpr capability in C++11?
...ity as it becomes more obvious what you are doing. Take max( a, b ) for example:
template< typename Type > constexpr Type max( Type a, Type b ) { return a < b ? b : a; }
Its a pretty simple choice there but it does mean that if you call max with constant values it is explicitly calculated...
What is stdClass in PHP?
...
stdClass is PHP's generic empty class, kind of like Object in Java or object in Python (Edit: but not actually used as universal base class; thanks @Ciaran for pointing this out).
It is useful for anonymous objects, dynamic properties, ...