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MySQL integer field is returned as string in PHP
...row array had appropriate data types. Now I'm having to write code to manually cast every element to the data type I'm expecting.
– GordonM
Mar 25 '11 at 10:14
25
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快速理解 高频对冲套利自动交易（程式化交易） - 更多技术 - 清泛网 - 专注...
...的都是浮亏的。直到浮亏变盈。)
你的理解大体上没有问题。与以往单向投机的区别是：我并非在某个价位上有多笔持仓浮亏，而是，每一个持仓浮亏单，均是不同价格，且由于是对冲套利持仓，不担心绝对价格的暴涨暴跌，...
index.php not loading by default
I have just installed CentOS, Apache and PHP. When I visit my site http://example.com/myapp/ , it says "forbidden". By default it's not loading the index.php file.
...
java.net.ConnectException: Connection refused
...ing this error. after reading a lot from the buddy WEB, I then closed out all the simulators and eclipse, killed the ADP in the task manager and then restarted the Eclipse and everything is started working properly. I think when you have multiple simulators running and then you try to connect devi...
Commands out of sync; you can't run this command now
I am trying to execute my PHP code, which calls two MySQL queries via mysqli, and get the error "Commands out of sync; you can't run this command now".
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...tf8_unicode_ci uses the standard Unicode Collation Algorithm, supports so called expansions and ligatures, for example:
German letter ß (U+00DF LETTER SHARP S) is sorted near "ss"
Letter Π(U+0152 LATIN CAPITAL LIGATURE OE) is sorted near "OE".
utf8_general_ci does not support expansions/liga...
Best PHP IDE for Mac? (Preferably free!) [closed]
...wdown on Mac IDE's for PHP
NetBeans
Free! Plus, the best functionality of all offerings. Includes inline database connections, code completion, syntax checking, color coding, split views etc. Downside: It's a memory hog on the Mac. Be prepared to allow half a gig of memory then you'll need to shu...
How can I convert ereg expressions to preg in PHP?
...pha-numeric, a backslash or a whitespace character. The most used are generally ~, / and #.
You can also use matching brackets:
preg_match('[^hello]', $str);
preg_match('(^hello)', $str);
preg_match('{^hello}', $str);
// etc
If your delimiter is found in the regular expression, you have to escap...
How can I create an array with key value pairs?
...dd key-value pairs to the end of the array, even if you have integer keys. PHP arrays are ordered, so if you want to prepend an array with a key-value pair, you have to do this: $data = ['user_email' => joy@cargomar.org'] + $data.
– totymedli
May 9 '18 at 22...
OnInitUpdate、OnUpdate、OnDraw与OnPaint - C/C++ - 清泛网 - 专注C/C++及内核技术
...。
在用户进行输入后如何使视的状态得到更新？这个问题在一个文档对应一个视图时是不存在的，但是现在有一个文档对应了两个视图，当在一个视上进行了 输入时如何保证另一个视也得到通知呢？MFC的做法是利用文档来处...