Skip to main content

What the difference is between include and require in php with example



 What the difference is between include and require in php with example

Include:
By using this concept we can embed the external page current application.  We have difference function to embed the external page or file.
Defection: it includes the external page number of times. If the external page is not available it returns a warring massage and  executed the rest of the statements once we include the external file we can call the variable, function, class and executable statements of external file from current application.
Include_once :
It is same as include but we can embed the external file only one time.
Require
It is same as include used to embed the external file multiple times. But returns error message if the external file is not available and stops the execution of rest of the statement.
Require_once
It is same as require. But only one time we can embed the external file.

Popular posts from this blog

java script

This Javascript tutorial is for people with little or no experience with programming. It covers these topics: The Definition of Javascript The History of Javascript Java Versus Javascript Learning Javascript A Basic JavaScript Example The Definition of Javascript JavaScript is a type of programming language that works with HTML to make web pages more interactive. For instance, if you had a trivia quiz on a web page you could use JavaScript to check the answers. Javascript is limited. It is not a full-featured programming language like Java or C++. Think of the JavaScript language as a simple, easy-to-use programming language that has only the features necessary to make web pages interactive. The History of Javascript When the Web was first created in the early 1990s all web pages were static. In other words there were no popup windows, no shopping carts, no flying thingy's etc. Pages just stayed still. At that time Netscape Navigator and Internet Explorer were the top browsers. Net...
Read more

php super global variables examples | super global variables in php example

Super global variables are special type variables in php. We can access them from any place with in the application. $_GET :-The $_GET is a super global variable. By using this super global variable we can get the posted values of GET method. $_GET super global variable by default, is the only way that we can access variables passed via GET method. $_POST :-The $_POST is a super global variable. By using this super global variable we can get the posted values of POST method. When ever we can submit the form get are post method to get the form values $_REQUEST. $_SESSION :   $_SESSION is a super global variable. By using this super global variable we can create a SESSION and we read the SESSION .SESSION are used to maintain the state of the application. $_COOKIE : $_COOKIE is a super global variable. By using this is super global variable stores information passed into the script through HTTP cookies. $_ENV : $_ENV is a super global variable. By usi...
Read more

find visitor location php

<?php function geoCheckIP($ip)   {   //check, if the provided ip is valid   if(!filter_var($ip, FILTER_VALIDATE_IP))   {   throw new InvalidArgumentException("IP is not valid");   }   //contact ip-server   $response=@file_get_contents('http://www.netip.de/search?query='.$ip);   if (empty($response))   {   throw new InvalidArgumentException("Error contacting Geo-IP-Server");   }   //Array containing all regex-patterns necessary to extract ip-geoinfo from page   $patterns=array();   $patterns["domain"] = '#Domain: (.*?)&nbsp;#i';   $patterns["country"] = '#Country: (.*?)&nbsp;#i';   $patterns["state"] = '#State/Region: (.*?)<br#i';   $patterns["town"] = '#City: (.*?)<br#i';   //Array where results will be stored   $ipInfo=array();   // &nbsp;   //check response from ipserver for above patterns   foreach ($pa...
Read more