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Get the client IP address using PHP [duplicate]
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When to use static vs instantiated classes
... Framework. There are classes which use static method calls (factories) in order to build objects. It was impossible for me to supply another factory to that instance in order to get a customized object returned. The solution to this problem is to only use instances and instace methods and enforce s...
笨法玩电商网站秒杀 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...跟不上，程序就会堆积大量连接，这可能会引起很多连锁问题：一方面可能导致内存不足，以PHP为例，一个连接通常占用10M左右，堆积一千个连接的话，10G内存就没有了；另一方面大量的连接可能耗尽端口资源，具体取决于内核...
How to read a large file line by line?
...ne before while $file->setFlags(SplFileObject::DROP_NEW_LINE); in order to drop newlines at the end of a line.
– elshnkhll
Nov 9 '15 at 18:22
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C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++特化模板函数的符号多重定义错误问题error LNK2005: "void __stdcall SerializeElements<class CLogEvent> ...fatal error LNK1169: 找到一个或多个多重定义的符号.我...特化模板函数SerializeElements时，报重复定义的错误，如下：
error LNK2005: "void __std...
PHP: If internet explorer 6, 7, 8 , or 9
...eragent contains safari. so above test should report chrome as safari. the order should be reversed. check keyword chrome first.
– Average Joe
Oct 24 '18 at 9:06
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How to post data in PHP using file_get_contents?
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Why is  appearing in my HTML? [duplicate]
... Includes: If the included files are stored with BOM (e.g. UTF-8 with Byte Order Mark), there will be appearances of &#65279; in the file assembled by the webserver. Simple solution: Save the files as UTF-8 without Byte Order Mark.
– The Conspiracy
Apr 15 '...
How to write into a file in PHP?
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In order to write to a file in PHP you need to go through the following steps:
Open the file
Write to the file
Close the file
$select = "data what we trying to store in a file";
$file = fopen("/var/www/htdocs/folder/test.txt"...
Migration: Cannot add foreign key constraint
...ed as a primary key in it's original table. Migrations get executed in the order they were created as indicated by the file name generated after running migrate:make. E.g. 2014_05_10_165709_create_student_table.php.
The solution was to rename the file with the foreign key to an earlier time than th...