PHP for a simple data collection
Introduction
When it comes to data collection, python comes to mind first. The code is simple, efficient and easy to implement.
How does PHP implement data collection?It's simple.
concept
What is data collection?Below is the introduction of Baidu Encyclopedia:
Data collection, also known as Data Acquisition Is an interface that uses a device to ...
Added by agnalleo on Sun, 15 Dec 2019 08:00:42 +0200
About uploading pictures in HTML
About uploading pictures in HTML
It is worth noting that when a form contains this upload element, the enctype of the form must be specified as multipart / form data, and the method must be specified as post, so that the browser can recognize and correctly execute it. But there is another point, the browser only allows users t ...
Added by Pedro Sim on Sat, 14 Dec 2019 20:07:15 +0200
Bootstrap validate easy to use
I wrote a login verification with bootstrap date a few days ago. Here's a small note
First, we need to introduce
Bootstrappvalidator. CSS / / can not be imported
jquery-2.1.0.min.js
bootstrap.min.js
bootstrapValidator.js
The following is the verification method. The name attributes of the two text boxes verified are loginName and password (reme ...
Added by january_9th on Fri, 13 Dec 2019 23:30:45 +0200
Challenge the routine -- why shouldn't Jsonp be used for cross domain
General cross domain approach
Common cross domain methods include:
Add access control allow origin
Background server agent
Jsonp
1. 2. Both methods are safe and reliable. 3. They are not safe and reliable
The essence of Json
The essence of Json is to reference and execute external JavaScript script. The principle is that the < script > ...
Added by txhoyt on Thu, 12 Dec 2019 21:37:27 +0200
WebApi realizes the upload and download of single file
Upload and download are very common functions. Only when they are used can they find that they can't write... After a lot of Baidu, filtering, sorting and modification, the function is realized. The following is a simple record of the implementation method.
I. upload function
1. Front end code
Upload files <input type="file" id="file" /> ...
Added by FURQAN on Wed, 11 Dec 2019 02:43:30 +0200
Use of Promise in JS
Code in JavaScript is single-threaded, so all network operations and browser events in JavaScript must be executed asynchronously.Before Promise, JavaScript handled asynchronization in a callback function.It can be said that the way callback is already very popular, so what is Promise solving?Look at the following code:
$.get('/getList',functio ...
Added by phpcodec on Tue, 10 Dec 2019 09:47:29 +0200
idea to create an ssm project based on maven
In this paper, we use el expression to query and display the background data in jsp page.
1. Preconditions
Complete paging to get user information api
2. Technical selection
Front end paging plug-in jquery paginator
Back end paging plug-in pagehelper
3. Import dependent js and css
bootstrap.min.3.3.5.css
jquery-1.11. ...
Added by manichean on Sun, 08 Dec 2019 20:38:16 +0200
JQuery obtains the specified contents of multiple tags at the same time and stores them as an array
In web development, we often encounter the problem of getting the same type of tag, such as the following two cases
When it is necessary to obtain the specified value of the same label in batch, the newcomer will encounter a little trouble
For example, demo with id=problem1
var list1=$("#problem1").children();//Get to problem1 Array of object ...
Added by jdwmk on Sun, 08 Dec 2019 17:13:51 +0200
jQuery date (age) select plug-in
Download address: https://www.helloweba.net/javascript/263.html
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>jQuery Date (birthday) selector</title>
<style>
</style>
<script type="text/javascript" src="jquery.js">< ...
Added by DaveLinger on Sun, 08 Dec 2019 14:34:52 +0200
jQuery -- time flies: AJAX method
jQuery -- review of knowledge points (5): AJAX method
1. $.ajax method: used to execute AJAX (asynchronous HTTP) requests.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>My Test JQuery</title>
<script type="text/javascript" src="./js/jquery-1. ...
Added by webtuto on Sun, 08 Dec 2019 09:42:52 +0200