[PHP] Learn PhP By Code

PHP - Echo example

<?php
$myString = "Hi! This is a test";
echo $myString;
echo "<h1>PHP!</h1>";
?>


PHP - Strings example

<?php
$test_string = "tips-tech";
echo "tech tips- php";
echo $test_string;
?>


PHP - Syntax example

<?php
?>

Hi this is php

<?
?>

PHP - Include File example

<?php include("test.php"); ?>
<p>How test.php include to a php page </p>


PHP- Defines Constants

<?php
define("MYTEXT", "hi!frnd");
echo MYTEXT;
?>

PHP If...Else loop

<?php
$k=1;
if ($k==1)
{
echo "k is 1";
}
else
{
echo "k is not 1!";
}
?>

PHP Switch loop

<?php
$txt="read";
switch ($txt)
{
case "read":
echo "Your are reading!";
break;

case "Writing":
echo "Your are Writing!";
break;

default:
echo "Your are seeping!";
}
?>

PHP File demo code

<?php
$ft = fopen("testfile.txt", "r");
?>



<?php
$tsFile = "File.txt";
$ft = fopen($tsFile, 'r');
$fData = fread($ft, 5);
fclose($ft);
echo $fData;
?>


PHP File Upload

<form enctype="multipart/form-data" action="upload_page.php" method="POST">
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
file to upload:
<input name="loadedfile" type="file" /><br />
<input type="submit" value="Upload" />
</form>



multipart/form-data is used when a form requires binary data, like the contents of a file for uploader

<?php

$target_path = "upload-store/";
$target_path = $target_path . basename( $_FILES['loadedfile']['name']);
$_FILES['loadedfile']['tmp_name'];
?>

<?php
if(move_uploaded_file($_FILES['loadedfile']['tmp_name'], $target_path))
{
echo "The file ". basename( $_FILES['loadedfile']['name'])." uploaded Successfully";
}
else
{
echo "error!!!!!";
}

?>



PHP Session

session_start() function is used for start the session.

<?php
session_start();
$_SESSION['testname'] = "Lisa"; // records the session data
echo "Hi! = ". $_SESSION['testname']; //get session data of $_SESSION['testname']
?>

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