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This talk was given by Kanika at OSScamp Pantnagar.
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BYKANIKA SINGHAL3RD YEAR COMPUTER ENGINEERINGCollege of Technology, GBPUA&T
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What is PHPBasics of PHPWriting simple programs in PHPWhy use PHPMore on PHP programmingRetrieving data from the clientDesigning forms
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Hands on experience………
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BASIC CODE IN TEXT EDITOR
HOW IT LOOKS ON WEB BROWSER
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Example 1
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Web server locates instructions file
Web server processes instructions to create HTML
HTML stream returned to browser
Browser processes HTML and displays page
Client requests webpage
Author writes instructions
Delivering a web page
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BASIC CODE IN TEXT EDITOR
HOW IT LOOKS ON WEB BROWSER
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Revision Example 1
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BASIC CODE IN TEXT EDITOR
<?php$my_name = “kanika”;$My_name = “KANIKA”;echo “hello, $my_name”;echo “hello, $My_name”;?>
Variable.php
HOW IT LOOKS ON WEB BROWSER
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Example 2
string (text) example, $name=“kanika”
integer (numeric) example, $value=100
double (numeric)ArrayObjectunknown type
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BASIC CODE IN TEXT EDITOR
<?php$years=2;$rate=5;$principal=1000;$simple_interest= $years *
$rate * $principal ;echo "<h2>Simple Interest
is Rs. $simple_interest/-</h2>";?>
simple_interest.php
HOW IT LOOKS ON WEB BROWSER
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Example 3
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<FORM>…</FORM>
Text fields <input name=“textbox_name” type=“text”>
Checkboxes <input name=“checkbox_name” type=“checkbox” value=“”>
Radio buttons <input name=“radio_name” type=“text” value=“”>
Listboxes <select name=“listbox_name[]” multiple> <option>option1</option>
… </select>
Passwords <input name=“textbox_name” type=“password”>
Submit and Reset buttons<input name=“textbox_name” type=“text”>
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ACTION-tells the server which page to go to once the user has clicked a submit button on the form.
<FORM ACTION="test.php">...
</FORM>
METHOD-controls the way that information is sent to the server. It can do this in one of two ways-GET and POST
<FORM ACTION="test.php" METHOD=GET> <FORM ACTION="test.php" METHOD=POST>
ID, CLASS, DIR,LANGUAGE, NAME, STYLE, and TITLE
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BASIC CODE IN TEXT EDITOR
<HTML><head><title>Form page</title></head>
<body><FORM METHOD=GET
ACTION=“name.php">What is your name ?<INPUT NAME=“user”
TYPE="TEXT"><BR><BR><INPUT TYPE=SUBMIT></FORM>
</body></HTML>
Form_GET.php
HOW IT LOOKS ON WEB BROWSER
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Example 4(Using GET method)
BASIC CODE IN TEXT EDITOR
<HTML><HEAD></HEAD><BODY>YOUR NAME IS :<?phpecho $user;?></BODY></HTML>
name.php
HOW IT LOOKS ON WEB BROWSER
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Example 4 continued….
BASIC CODE IN TEXT EDITOR
<HTML><head><title>Form page</title></head>
<body><FORM METHOD=POST
ACTION=“name.php">What is your name ?<INPUT NAME=“user”
TYPE="TEXT"><BR><BR><INPUT TYPE=SUBMIT></FORM>
</body></HTML>
Form_GET.php
HOW IT LOOKS ON WEB BROWSER
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Example 5(Using POST method)
BASIC CODE IN TEXT EDITOR
<HTML><HEAD></HEAD><BODY>YOUR NAME IS :<?phpecho $user;?></BODY></HTML>
name.php
HOW IT LOOKS ON WEB BROWSER
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Example 5 continued….
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THE END
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