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如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...学习算法Choosing-a-Machine-Learning-Classifier如何针对某个分类问题决定使用何种机器学习算法？ 当然，如果你真心在乎准确率，最好的途径就是测试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交...
How to remove duplicate values from a multi-dimensional array in PHP
How can I remove duplicate values from a multi-dimensional array in PHP?
19 Answers
19...
How do I expire a PHP session after 30 minutes?
...y registered session. And that is cost-intensive.
Furthermore, when using PHP's default session.save_handler files, the session data is stored in files in a path specified in session.save_path. With that session handler, the age of the session data is calculated on the file's last modification date...
instantiate a class from a variable in PHP?
...r as I can tell) must declare the full namespace path of a class.
MyClass.php
namespace com\company\lib;
class MyClass {
}
index.php
namespace com\company\lib;
//Works fine
$i = new MyClass();
$cname = 'MyClass';
//Errors
//$i = new $cname;
//Works fine
$cname = "com\\company\\lib\\".$cname...
What does PHP keyword 'var' do?
...'t been able to find the answer neither through web search engines, nor on php.net. Please just direct me to where I can read about this, if you haven't got time to explain.
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json_encode/json_decode - returns stdClass instead of Array in PHP
...e second parameter of json_decode($json, $assoc, $depth) at https://secure.php.net/json_decode
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...学习算法Choosing-a-Machine-Learning-Classifier如何针对某个分类问题决定使用何种机器学习算法？ 当然，如果你真心在乎准确率，最好的途径就是测试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交...
Java equivalent to Explode and Implode(PHP) [closed]
I am new in Java although had a good experience in PHP, and looking for perfect replacement for explode and implode (available in PHP) functions in Java.
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Compare floats in php
I want to compare two floats in PHP, like in this sample code:
16 Answers
16
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Turn off deprecated errors in PHP 5.3
My server is running PHP 5.3 and my WordPress install is spitting these errors out on me, causing my session_start() to break.
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