Code-Searching: php

Showing posts with label php. Show all posts

Thursday, 21 July 2016

How to access local file system in php using XAMPP ?

XAMPP manages a document root folder on local environment : <install-dir>\htdocs

To make a file available through your development server, copy the files in this folder.

To access file : <install-dir>\htdocs\test\sample.txt , Use in browser :
http://localhost/test/sample.txt

What is XAMPP and how to use it ?

XAMPP is complete package of Development environment for Php.

Download and install XAMPP

It will install the Apache Web server, MySQL etc.

XAMPP comes with a control panel you can use to start and stop Apache.

Visit URL into your browser : http://localhost which will display home page of XAMPP.

Tuesday, 19 July 2016

is it possible to execute PHP code from the command line instead of Browser ?

Yes !
Use php command with ./
php ./hello.php

You can use -i flag to generate the result in HTML file.
php -i > /tmp/phpresult.html

How to add comments to php code ?

2 types of comment

<?php
    // This is line comment
    /* This is

       C-style comment */
    echo 'hello world';
?>

How to use variables in php code ?

For display variables using echo, always use variable in double quotes.

Example
<?php
    $text="Hello world";
    echo '<html><head><title>Title here</title></head><body>';
    echo '$text<br>';
    echo "$text<br>";
    echo '</body></html>';
?>

Output

$text

Hello world

How to write program in PhP ?

Hello World in PhP

Example
<html>
<head>
<title>PHP Test</title>
</head>
<body>
<?php echo '<p>Hello World</p>'; ?>
</body>
</html>

3 ways to use PhP code in your php file
<?
echo 'hello world 1<br>';
?>

<script language="php">
echo 'hello world 2<br>';
</script>

<%
echo 'hello world 3<br>';
%>

Example 2
<?php
    echo '<html>
         <head>
         <title>Title of the site</title> '.
         '</head>';

    echo "<body>hello world<br></body></html>\n";
?>