Sunday, May 17, 2009

Quick Introduction To Php Basics

Quick introduction to PHP. Here I’m just telling about the basic programming variables and loops of Php.





Before checking the code Install EASYPHP 1.8.After installation go to the location where you have installed a EASYPHP 1.8 then Click on the EasyPHP --->WWW---> index1.php. Write code in note pad and then follow the following procedure and save it with name index1.php as i give it name as a example.After saving your page (code) in EasyPhp-->www folder then go to explorar and write localhost or 127.0.0.1

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Let's start now

// this is the php ending tag

Here are some examples

The Output

20

$b = "Banana's" ;
echo $a, $b;//We can print multiple items by separating them using a comma

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The Output

20 Banana's


IF Statements
//If statements as same as in C,C++,JAVA,ASP etc
$x = 1o ;
$y = 20 ;

if($x< $y) { echo "True" ; //If IF condition is true mean's X less then Y then it will enter's here } else { echo "False"; //If IF condition is false mean's X not less then Y then it will enter's here } ?>


We can also use Html using php see the example.
Replace the "N" with "<" and "M" with ">" in the below html tags
echo "NhtmlM" ; // Here printing a HTML starting tag
echo "Na href="http://www.google.com/"MGoogleN/aM" ; // Here printing a HTML Hypertext Referrence line tag
echo "Ninput value="Firsttext" maxlength="100" type="text"M" ; // Here printing a HTML tag to input a text
echo "N/htmlM" ; // Here printing a HTML Ending tag
?>


The one more easier way to do the samework is to just close the php tag, type html and open the php tag again. An example would be a php if statement.

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//close php tag here and starts html tags

Nform name="firstpage" method="post"M
Ninput name="name" type="text"M
Ninput name="Update" type="Update"M
N/formM






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Let's Start Php Loops these loops are same as in C,C++,Java etc

for ($i=1; $i<=10; $i++) // for(intialization;condition;increments/decrements) { echo $i, "= "$i; // write your statements here } FOREACH LOOP using array

$array1=array("yellow","blue","red");
foreach ($array1 as $colors)
{
//we can use Concatination "." to split/join variables and strings together
echo "Color: " . $colors . "
";
}







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While loop is same as in C,C++,Java etc
$i=1;//intialization we can do outside the loop in while loop;
while ( $i<=10) // while(condition) { echo $i, "= "$i; // write your statements here $i++;//increments/decrements } Link2Communion.com