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Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...是怎么来的？又能干什么呢？目前存在哪些困难呢？这些问题的简答都需要慢慢来。咱们先来了解下机器学习（人工智能的核心）的背景。
二、背景
机器学习（Machine Learning）是一门专门研究计算机怎样模拟或实现人类...
How to Free Inode Usage?
...age is 100% (using df -i command).
However after deleting files substantially, the usage remains 100%.
15 Answers
...
CodeIgniter: Create new helper?
...o it.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
if ( ! function_exists('test_method'))
{
function test_method($var = '')
{
return $var;
}
}
Save this to application/helpers/ . We shall call it "new_helper.php"
The first line exists to ...
Why use sprintf function in PHP?
...
sprintf has all the formatting capabilities of the original printf which means you can do much more than just inserting variable values in strings.
For instance, specify number format (hex, decimal, octal), number of decimals, padding a...
Make var_dump look pretty
...
I really love var_export(). If you like copy/paste-able code, try:
echo '<pre>' . var_export($data, true) . '</pre>';
Or even something like this for color syntax highlighting:
highlight_string("<?php\n\$data ...
How to properly add cross-site request forgery (CSRF) token using PHP
... just mixes it deterministically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport ra...
PHP mail function doesn't complete sending of e-mail
... one you need to run through the checklist below to find any potential pitfalls you may be encountering.
Make sure error reporting is enabled and set to report all errors
Error reporting is essential to rooting out bugs in your code and general errors that PHP encounters. Error reporting needs to ...
How to check that an object is empty in PHP?
...
empty doesn't actually check if an array is empty, empty($var) equivalent to (!isset($var) || !$var). You can replace your empty($arr)s with !$arr since array() == FALSE
– Timothy Zorn
Aug 20 '15 at 18:35...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...是怎么来的？又能干什么呢？目前存在哪些困难呢？这些问题的简答都需要慢慢来。咱们先来了解下机器学习（人工智能的核心）的背景。
二、背景
机器学习（Machine Learning）是一门专门研究计算机怎样模拟或实现人类...
If isset $_POST
....
empty space is considered as set. You need to use empty() for checking all null options.
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