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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...
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How can I add additional PHP versions to MAMP

The current version of MAMP that I have only has php 5.2.17 and 5.4.4. I need 5.3.X. Is there a way to add additional versions that can be selected in the MAMP interfaces php preferences? This is for the free version of MAMP, not MAMP PRO. ...
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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...
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Refresh a page using PHP

How can I refresh a page using PHP periodically? If I can not do it by PHP, what is the best recommended scenario? 13 Answe...
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Get URL query string parameters

...RY_STRING'] contains the data that you are looking for. DOCUMENTATION php.net: $_SERVER - Manual share | improve this answer | follow | ...
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Weird PHP error: 'Can't use function return value in write context'

... I realize I'm super late to this, but it's also PHP version dependent, right? I'm pretty sure that's legal in later PHP versions like 5.6, but I think it doesn't in 5.3 – UnsettlingTrend Dec 8 '16 at 16:14 ...
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How to send multiple data fields via Ajax? [closed]

...ttp://api.jquery.com/jquery.ajax/ $.ajax({ method: "POST", url: "some.php", data: { name: "John", location: "Boston" } }) .done(function( msg ) { alert( "Data Saved: " + msg ); }); share | ...
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simple explanation PHP OOP vs Procedural?

...unctions you have ever written in your entire life, listed in alphabetical order by function name For example: you could have multiple PHP files with functions that are chunked together by subject matter [e.g., functions for doing basic string manipulation, functions for processing arrays, functions...
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?

...some nicer properties for storage in a database such as roughly increasing order and encoding their creation time for free. The key thing for your use case is that they are designed to guarantee uniqueness to a high probability even if they are generated on different machines. Now if you were refer...
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Resize image in PHP

I'm wanting to write some PHP code which automatically resizes any image uploaded via a form to 147x147px, but I have no idea how to go about it (I'm a relative PHP novice). ...