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How do I Sort a Multidimensional Array in PHP [duplicate]
...s[$key] = $row[0];
}
array_multisort($dates, SORT_DESC, $mdarray);
For PHP >= 5.5.0 just extract the column to sort by. No need for the loop:
array_multisort(array_column($mdarray, 0), SORT_DESC, $mdarray);
share
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File Upload without Form
..., can I just send a file/files from <input type="file"> to 'upload.php' using POST method using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'.
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...机A ,B有两个可用路由要实现主备切换,当主防火墙出现问题的时候,可以自动切换到备防火墙上。第一台设备 ASG 425 支持OSPF...拓扑如下
主机A ,B有两个可用路由要实现主备切换,当主防火墙出现问题的时候,可以自动切换...
deque iterator not dereferencable 问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
deque iterator not dereferencable 问题STL里面出现这个问题,纠结了半天,不知道什么原因。当然deque iterator not dereferencable。这个是deque出问题,vector、list也可以出...STL里面出现这个问题,纠结了半天,不知道什么原因。
当然deque iterat...
怎么解决MQTT连接掉线,自动连接问题,同时解决,反复断开连接,断开连接问...
解决MQTT退出后台后掉线自动连接问题,现在可以实现自动连接,但是在返回控制界面的时候,反复断开反复链接,还有切换页面的时候返回也是同样的问题,还有连接一个服务器,需要每个页面单独设置MQTT连接吗,是不是可以...
Checking if an instance's class implements an interface?
... "Yes!";
}
class_implements() is part of the SPL extension.
See: http://php.net/manual/en/function.class-implements.php
Performance Tests
Some simple performance tests show the costs of each approach:
Given an instance of an object
Object construction outside the loop (100,000 iterations)
_...
Find out HTTP method in PHP [duplicate]
...e superglobals alternatives (Is using superglobals directly good or bad in PHP? and similar questions), one may instead use automatic sanitizing
filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS )
(you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...
How can I get useful error messages in PHP?
Quite often I will try and run a PHP script and just get a blank screen back. No error message; just an empty screen. The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely.
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PHP and Enumerations
I know that PHP doesn't have native Enumerations. But I have become accustomed to them from the Java world. I would love to use enums as a way to give predefined values which IDEs' auto-completion features could understand.
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How to render a DateTime object in a Twig template
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Twig's date function uses the same format as the php function (from the Twig docs). For anyone looking for other formats, php.net/manual/en/function.date.php.
– JonnyS
Mar 19 '14 at 20:22
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