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PHP Get Site URL Protocol - http vs https

...olutions are quite messy; this is how I would do it: $protocol = stripos($_SERVER['SERVER_PROTOCOL'],'https') === 0 ? 'https://' : 'http://'; ...or even without condition if you prefer: $protocol = strtolower(substr($_SERVER["SERVER_PROTOCOL"],0,strpos( $_SERVER["SERVER_PROTOCOL"],'/'))).'://'; ...
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Remove by _id in MongoDB console

... Very close. This will work: db.test_users.deleteOne( {"_id": ObjectId("4d512b45cc9374271b02ec4f")}); i.e. you don't need a new for the ObjectId. Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used ins...
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Why are function pointers and data pointers incompatible in C/C++?

...ry but C doesn't limit itself to only certain types of architectures if at all possible. share | improve this answer | follow | ...
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Should a return statement be inside or outside a lock?

...als init ( [0] int32 CS$1$0000, [1] object CS$2$0001) L_0000: ldsfld object Program::sync L_0005: dup L_0006: stloc.1 L_0007: call void [mscorlib]System.Threading.Monitor::Enter(object) L_000c: call int32 Program::GetValue() L_0011: stloc.0 L_0012: leav...
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How to make PDF file downloadable in HTML link?

... header("Content-Length: " . filesize($file)); flush(); // this doesn't really matter. $fp = fopen($file, "r"); while (!feof($fp)) { echo fread($fp, 65536); flush(); // this is essential for large downloads } fclose($fp); PS: and obviously run some sanity checks on the "file" variable t...
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Installing SciPy with pip

It is possible to install NumPy with pip using pip install numpy . 15 Answers 15...
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Detect Safari browser

...rAgent); It uses negative look-arounds and it excludes Chrome, Edge, and all Android browsers that include the Safari name in their user agent. share | improve this answer | ...
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How can I find where I will be redirected using cURL?

...topt($ch, CURLOPT_FOLLOWLOCATION, true); Erm... I don't think you're actually executing the curl... Try: curl_exec($ch); ...after setting the options, and before the curl_getinfo() call. EDIT: If you just want to find out where a page redirects to, I'd use the advice here, and just use Curl to ...
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Django queries - id vs pk

...ry key field i.e. you don't need to care whether the primary key field is called id or object_id or whatever. It also provides more consistency if you have models with different primary key fields. share | ...
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Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...http: www.cnblogs.com killmyday#include"stdafx.h"#include<tchar.h>#ifdef_UNICODE#define_ttol_wtol#else#define_ttolatol#e...转载+整理 http://www.cnblogs.com/killmyday #include "stdafx.h" #include <tchar.h> #ifdef _UNICODE #define _ttol _wtol #else #define _ttol atol #endif voi...