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Get first day of week in PHP?
... This answer produces inconsistent results, depending on the PHP version used: 3v4l.org/Z3k4E @LewisBuckley's solution is consistent for all versions: 3v4l.org/Eeh9c
– Chris Baker
Jun 25 '14 at 14:45
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Why does changing 0.1f to 0 slow down performance by 10x?
... credits to Carl Hetherington [1])
[1] http://carlh.net/plugins/denormals.php
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PHP - concatenate or directly insert variables in string
I am wondering, What is the proper way for inserting PHP variables into a string?
This way:
14 Answers
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Deep Learning（深度学习）学习笔记整理系列之（四） - 大数据 & AI - 清泛...
...些自动学习得到的特征可以大大提高精确度，甚至在分类问题中比目前最好的分类算法效果还要好！
AutoEncoder存在一些变体，这里简要介绍下两个：
Sparse AutoEncoder稀疏自动编码器：
当然，我们还可以继续加上一些...
Getting HTTP code in PHP using curl
...lso helps with following redirects):
How can I check if a URL exists via PHP?
As a whole:
$url = 'http://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true); // we want headers
curl_setopt($ch, CURLOPT_NOBODY, true); // we don't need body
curl_setopt($ch, CUR...
离开1号店 于刚再创业钟情“互联网+” - 资讯 - 清泛网 - 专注C/C++及内核技术
...但仍被业内解读为，沃尔玛将会在涉及1号店战略定位的问题上采取重要改变。
近期，沃尔玛发给记者的一份声明中显示：“1号店创始人兼董事长于刚以及联合创始人兼首席执行官刘峻岭决定离开1号店，去开创他们下一个事业...
Only variables should be passed by reference
...file_name) cannot be turned into a reference. This is a restriction in the PHP language, that probably exists for simplicity reasons.
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What is the difference between public, private, and protected?
...e property / method will be public.
More: (For comprehensive information)
PHP Manual - Visibility
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What does it mean to start a PHP function with an ampersand?
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It's returning a reference, as mentioned already. In PHP 4, objects were assigned by value, just like any other value. This is highly unintuitive and contrary to how most other languages works.
To get around the problem, references were used for variables that pointed to obje...
Fastest way to convert string to integer in PHP
Using PHP, what's the fastest way to convert a string like this: "123" to an integer?
8 Answers
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