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How to compare two dates in php

How to compare two dates in php if dates are in format '03_01_12' and '31_12_11' . 15 Answers ...
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Multiple Inheritance in PHP

I'm looking for a good, clean way to go around the fact that PHP5 still doesn't support multiple inheritance. Here's the class hierarchy: ...
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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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LINGO使用指南.doc - 脚本技术 - 清泛IT论坛,有思想、有深度

LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建立最优化模型的语言,可以简便地表达大规模问题,利用LINGO高效的求解器可快速求解并分析结果。 §1  LINGO快速入门当你在windows下开始运行LINGO系统时...
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How can you integrate a custom file browser/uploader with CKEditor?

...r which file was selected: window.opener.CKEDITOR.tools.callFunction(<?php echo $callback; ?>,url) Where "url" is the URL of the file they picked. An optional third parameter can be text that you want displayed in a standard alert dialog, such as "illegal file" or something. Set url to an e...
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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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分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...一台服务器来提供数据服务的时候,我会遇到如下的两个问题:1)一台服务器的性能不足以提供足够的能力服务于所有的网络...当我们在生产线上用一台服务器来提供数据服务的时候,我会遇到如下的两个问题: 1)一台服务...
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Android应用内存泄露分析、改善经验总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...可以梳理总结出来作为分享。 原则   对于性能问题,分析和改善有必要遵循以下原则: 一切看数据说话,不能跟着感觉走,感觉哪有问题就去改,很有可能会适得其反; 性能优化是一个持续的过程,需要不断...
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Deep Learning(深度学习)学习笔记整理系列之(三) - 大数据 & AI - 清泛...

...算单元情况下对复杂函数的表示能力有限,针对复杂分类问题其泛化能力受到一定制约。深度学习可通过学习一种深层非线性网络结构,实现复杂函数逼近,表征输入数据分布式表示,并展现了强大的从少数样本集中学习数据集...
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Deep Learning(深度学习)学习笔记整理系列之(三) - 大数据 & AI - 清泛...

...算单元情况下对复杂函数的表示能力有限,针对复杂分类问题其泛化能力受到一定制约。深度学习可通过学习一种深层非线性网络结构,实现复杂函数逼近,表征输入数据分布式表示,并展现了强大的从少数样本集中学习数据集...