PHP pre-defined variable $_server

PHP pre-defined variable $_server  $_server is an array that contains such things as the head (headers), Path (paths), and script location (scripts locations). The entity of the array is created by the Web server, and there is no guarantee that all

Heredoc and Nowdoc in PHP

In order to insert strings in PHP that look more intuitive and structurally clearer, the introduction of using Heredoc or Nowdoc, both for inserting a large number of similar HTML or XML files, Heredoc as follows:PHP $str = the_xml dog

How do I display the server speed in real time on the Ruby on Rails Web page?

In order to display the Internet speed in real time on the Web page, you need to request the server in real time (because many browsers do not support Web sockets, here is the way of Ajax polling), the server here in CentOS for example, using

Section 165th, jQuery, filter selector

JQuery, filter SelectorLearning Essentials:1. Basic Filter2. Content Filter3. Visibility Filter4. Sub-element filter5. Other methodsFilter selector abbreviation: filter. It is also a selector, and this selector is similar to the pseudo-class in CSS3

CSS Box model

margin abbreviation form: ① a value, up and down around this value; for example margin:10px=margin:10px 10px 10px 10px;② two values, the first represents up and down, the second number represents about; for example margin:10px 5px=margin:10px 5px

Webpack command for common installation of differential parts

1:NPM Install Html-webpack-plugin--save-dev//automatically quickly help us to generate HTML.2:NPM Install Css-loader style-loader--save-dev//style file, we need two kinds of loader,css-loader and Style-loader,css-loader will traverse the CSS file,

PHP session-Simulating the function of a shopping cart

1, PHP default is not to open the session, to use the session in two ways: (1) use Session_Start (), display the open session. (2) Find the following line in php.ini: Find Session.auto_start = 0, set 0 to 1. The following is a simulation of the

Webpack starting from 0---(ii)

Package directly with WebpackInstall CSS Loader,style Loader (for handling packaged CSS files)Command line input NPM install Css-loader Style-loader--save-devCreate a new JS file, the contents of a random function can be written (example:

CSS 3 selector Root, not, empty, target

1.root SelectorThe root selector binds the style to the root element of the page. The root element is the element that is the topmost structure in the document tree, which in the HTML page refers to the "" section that contains the entire page.2.not

How to deal with the conflict between JS and Smarty tags

The default token for Smarty is curly braces: {},If we have JS on the page and define a function or object, or if there is a CSS defined style, there will be curly braces,The Smary engine will interpret these curly braces as smarty syntax,Obviously,

Discuz common big problems-how to open and use the first four grid

In the Forum-home Four box, tick the start page four, then you can select the data source of the plateNote The first four grid refresh is a time, 5 minutes or so, not you here to update the post there will be (if you build your own website, may

One click implementation of jquery

1. The project needs to implement a requirement, the first click to allow the Popup Dialog object box, the second time not allowed, unless the page is refreshed again2. Define a tag attribute in the Click event of JS, which is equivalent to setting

A brief summary of some CSS hack written for IE6

Distinguish the hack of IE61. Distinguish between IE6, 7 and FF/IE8:JavaScript Code to copy content to clipboard Background:blue;*background:orange; ReferenceDisplay effect:IE 6/7:orangeFf/ie8:bluePrinciple: FF/IE8 does not support *

Nodejs Async.Parallel parameter Receive

Async.Parallel is the control method of the IO parallel in the process control, if there is no IO operation inside the async.parallel, the function execution in the inside is serial.Here we discuss the problem of parameter reception, on the code:var

Discuz Common small problems-how to turn off verification codes

Access to the background, in the anti-flooding, verification settings can be toggled in which cases whether to use the verification codeIf the verification code is enabled, also the customer modifies the difficulty of the CAPTCHA, style. Finally

Ajax Ocean First Step

AJAX ToolkitAjax is not a new technology, it is actually several technologies, each of which is a new way of aggregating together. Server-side language: The server needs to have the ability to send specific information to the browser. Ajax

HTML Basic Learning (II)

3.2Continuing on an HTML basis, a few years ago the page was made using a tabular label layout, which is now rarely used, basically using div layouts Table: Displaying tabular data Table> TR> th>th>Text Center Bold to large,

Uploading files to the target host via SSH

Need to upload files via SSH to the target host, the previous time through the SSH client to pass the file, this time because the local did not install the client, so consider directly with the terminal through SSH connection to the host for file

As an operator, do you know which copy can't be used casually?

We all know the new advertising law in the forbidden words, some limits can not be used, but in fact, there is also minefield can not tread. As a network operator, writing and planning activities in the process will inevitably encounter these mined

Configure Tomcat to let shtml nested files display

before, I know that Tomcat can directly parse the shtml file, display the effect in the browser, and later due to changes in demand, for example, when doing a static generation of a site's head and bottom are the same, if each page is generated once,

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