get element by id php

Administrators of more than 3 million Internet websites around the world are using PHP, making it one of the most popular server-side scripting languages. It features fast running, stable and reliable, cross-platform, and openSource codeSoftware.

php Execution Principle PHP is a very simple application, the development of a very high efficiency of a language, its weak type of variable can save the programmer a lot of time and effort to define variables, type conversion and so on. It is a

PHP operating mechanism and principle (underlying), and php operating mechanism. The PHP operating mechanism and principle (underlying). when talking about the php operating mechanism, we should first introduce the php module. php has three modules

PHP sorts the two arrays by the value of an element in the second dimension, and php sorts the two arrays. For example: 1 // The original array is like this, and you want to sort it in ascending or descending order of run_date In the second

For example:1 //The original array is like this, and you want to be able to sort by run_date ascending or descending in the second dimension:2 $arr=Array(30=>Array(4' Run_date ' = ' 2017-11-21 ',5' Count ' = ' 5 '6),71=>Array(8' Run_date ' = ' 2017-1

This article we mainly share with you the PHP bottom operating mechanism of the detailed, first we will share with you PHP design concept and features, PHP four layer system, etc., hope to help everyone. 1. PHP Design concept and Features

The principle and application analysis of PHP single element design mode. Some application resources are exclusive because there is only one resource of this type. For example, the connection from a database handle to a database is exclusive. You

PHP Function Index 967 functions A total of 967 functions Abs: Get absolute value. Acos: Gets the inverse cosine value. Ada_afetch: Gets the return column of the database. Ada_autocommit: Switch automatic change function. Ada_close: Close Adabas D

PHP operating mechanism and principle (underlying), PHP operating mechanism When it comes to PHP's operating mechanism to introduce PHP modules, PHP has a total of three modules: the kernel, the Zend engine, and the extension layer, the PHP kernel

PHP underlying operating mechanism and principle, PHP underlying operating mechanism PHP is simple, but mastering is not an easy thing to do. We have to know how it works in addition to using it. PHP is a dynamic language for web development.