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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...个字符串。那么，找到这个内存地址中的字符串便能解决问题了。那么如何去寻找呢，于是乎我又翻看我的那几十页代码纸，企图人工计算出来。后来发现数据段的的值没有包含。终于，我开始想到了gdb这个工具。干嘛不在0x8048...
What's the deal with a leading underscore in PHP class methods?
While looking over various PHP libraries I've noticed that a lot of people choose to prefix some class methods with a single underscore, such as
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Why won't my PHP app send a 404 error?
...play for 404s.
The problem is, once the web server starts processing the PHP page, it's already passed the point where it would handle a 404
User: Hey, do you have anything for me at this URI webserver?
Webserver: Yes, I do, it's a PHP page. It'll tell you what the response code is
PHP: Hey, OM...
Where are $_SESSION variables stored?
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The location of the $_SESSION variable storage is determined by PHP's session.save_path configuration. Usually this is /tmp on a Linux/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot of your...
How do I get the base URL with PHP?
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Try this:
<?php echo "http://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; ?>
Learn more about the $_SERVER predefined variable.
If you plan on using https, you can use this:
function url(){
return sprintf(
"%s://%s...
Type-juggling and (strict) greater/lesser-than comparisons in PHP
...tors deviate from the computer-scientific definitions in several ways:
In order to constitute an equivalence relation == has to be reflexive, symmetric and transitive:
PHP's == operator is not reflexive, i.e. $a == $a is not always true:
var_dump(NAN == NAN); // bool(false)
Note: The fact that...
PHP equivalent of .NET/Java's toString()
How do I convert the value of a PHP variable to string?
24 Answers
24
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Receive JSON POST with PHP
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Try;
$data = json_decode(file_get_contents('php://input'), true);
print_r($data);
echo $data["operacion"];
From your json and your code, it looks like you have spelled the word operation correctly on your end, but it isn't in the json.
EDIT
Maybe also worth trying ...
Count how many files in directory PHP
...s is cute, but I can imagine it being fairly confusing/unreadable for most PHP devs. I would go with one of the approaches in the other answers.
– user428517
Oct 9 '12 at 16:10
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手握利器，直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...
...indows有时候也会跟我们闹闹情绪，小则是“应用程序遇到问题需要关闭”，搞不好还可能给您脸色看看。但是，这脸色可不是红的白的，而是一张“蓝脸”，您见过吗？首先，我们介绍以下三个重要的问题：
一、到底什么是...