How php related to Webform
******************************
WebApplication
|
|-------->html/css/sass/less/Bootstrap/mediaQuery
Js = Programming Langauge ----> Interpreter
PHP = Programming Langauge -----> PHP Interpreter
No
JS Events
PHP Events X
Page Load
1. Page Load
|
|---------->Requesting for a Page URL
whenever a page is called(Resource) then browser will a create or make a Request
it will to server 1 sec
C------------------>S <------->Nic Database select * from marks_table where
| | rollno = zzzzzzzz;
Roll No |<------------------|
return data to
1 Sec
1. Request Roll No
1. url : login.php
2. url : https://upresults.gov.nic.in/result_announcement/2020/13yu2t3yuwu/showresult.php
Syncronous Programming : All the resources, Devices hardware will wait
and until and 1 response processed.
Asyncronous Programming : Nodejs
All the Resource,Devices,hardware does not to wait
request will be accepted from all but delivered
once which is processed first.
page loading
1.form submit <form>
2.using Anchor Tag <a>
3.using shadow load [At Network Layer]
Q1. consider a program which js and php code inbuilt together
<h1><?php $arr=[10,20,30,40]?></h1>
<?php print_r($arr);?>
<script>
var arr = [<?php echo 10,",",20; ?>]; //var arr=[10,20,30]; //jass
console.log(arr); //[10,20,30,40]
console.log(arr);// string
<script>
1. Complete the Code at line 501
Answer : js it work on text or Tag
request ---->page call --->resource --->MIME TYPE ---->File (.php)--->Apache
php:// [Interpreter]
|
|----------->php code
|
|------->plain Text
|
|-------->Browser
|-----Plain +HTML Tag
DOM TREE
|----------->Javascript
wap a program to dynamically accept the input from form
and display on Another Page.
Filename :input.php
steps 1: Analyse page load Event
step 2:
if it is using <form Tag>
1. action attribute <form action="output.php" >
if action="" is self or empty
action="input.php" or action=""
submit the form at this location
action="#" --->
url :input.php#
# is called fragment Identifier
#home
#aboutus
#inbox
and will be a key concept spa application (single page Application).
navigator location Api # ---> /
gmail.com/inbox routing in spa
spa framework
href="javascript:alert('Hello I am Alert');"
<a href="javascript:alert('Hello');">alert</a>
2. if action is availble onsubmit attribute is checked
<form action="output.php" onsubmit="return false;">
Task: Perform Cleint side validation onsubmit attribute
name 1Blank
mobile blank and length
email type="text" empty and @ .
3. After client side data is validated
1. How to sent the data to the server on clicking submit button
2. How to sent the data to the server without submit button
Ajax <input type="button">
4. Considering submit from submit button
1. Identify the method type by default method is Get Type
<form action="output.php" onsubmit="return validate();" method="get">
<form action="output.php" onsubmit="return validate();" method="GET">
<form action="output.php" onsubmit="return validate();" >
By default Method is Get
Method is POST
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