PHP

Hypertext preprocessor / personal home page

Rasmus Lerdorf

He created the PHP scripting language

•PHP is an "HTML-embedded scripting language" primarily used for dynamic Web applications. PHP was written in the C programming language by Rasmus Lerdorf in 1994 for use in monitoring his online resume and related personal information. For this reason the php was developed, PHP originally taken for "Personal Home Page".

•PHP is a server side scripting language, and a powerful tool for making dynamic and interactive Web pages.

•PHP is a widely-used, Open source, and efficient alternative to competitors such as Microsoft's ASP, JAVA

Feature in php

• Syntax

•Comments

•Echo / Print

•PHP Case Sensitivity

•Variables

• Data Types

• Strings

• Constant

• Operators

 If.. Else .. Elseif

Switch

While Loops

For Loops

Functions

Arrays

Sorting Arrays

Super globals

Form Handling

Form Validation

Form Required

Form URL/E-mail
Feature in php 

Adv. Features

Multi Arrays

Date and times

Include

File Handling

File Upload

Filters

Cookies

Sessions

Filters 

How to Print value in PHP By using Echo and Print command: -

echo Method: -

<?php

echo "Welcome to PHP Program"."<br>";

echo "<br>";

echo "am from echo method";

?>

Output: -

Welcome to PHP Program

am from echo method

Print Method: -

<?php

print "Hello am from print method";

?>

Output: -

Hello am from print method




PHP-Errors

<?php
$value=1000;
function myerrors(){

$x=100;
echo $x;

}

$value=1000;
include "header.php";

myerror();
echo $value;

$z=100;

?>

Local Variables: -

<?php
function my_fun(){
$value1=100;
$value2=50;

echo "$value1";

}
my_fun();

echo $value2;

?>


Static Variable program in php: -

<?php
function myTest(){
static $x=100;
echo $x."<br>";
$x++;
}
myTest();
myTest();
myTest();

?>