How to change Apache port

The default port of Apache & IIS is 80. If you need to change your apache port. You may need to do small changes in your Apache setting file.

Open your httpd.conf file

IF you have Xampp then below path help you to find conf file

D:\xampp\apache\conf

IF you have wamp then below path help you to find conf file

D:\wamp\bin\apache\Apache2.2.21

In the file, find the line Listen 80 and change the port as per your need.

It like this

#Listen 0.0.0.0:80

#Listen [::]:80

Listen 80

Save the conf file and restart the server.

Apache installation on ubuntu

How to install Apache on ubuntu
Please enter the following command into your terminal prompt.

sudo apt-get install apache2

Command for restart the Apache
sudo service apache2 restart
OR 
sudo /etc/init.d/apache2 restart

Command for start the Apache
sudo /etc/init.d/apache2 start

Command for stop the Apache
sudo /etc/init.d/apache2 stop


Installation of php on ubuntu

sudo apt-get install php5

-----------------------

mysql
----------------------


sudo service mysql start

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Marotrao Kannamwar
P. K. Sawant
Vasantrao Naik
Shankarrao Chavan
Vasantdada Patil
Sharad Pawar
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Babasaheb Bhosale
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Shankarrao Chavan
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Manohar Joshi
Narayan Rane
Vilasrao Deshmukh
Sushilkumar Shinde
Ashok Chavan
Prithviraj Chavan

htmlentities & htmlspecialchars in php

htmlentities 

Convert all applicable characters to HTML entities

$str = "A 'quote' is <b>bold</b>";

Example
echo htmlentities($str);
// Outputs: A 'quote' is &lt;b&gt;bold&lt;/b&gt;



htmlspecialchars 

Convert special characters to HTML entities

'&' (ampersand) becomes '&amp;' 
'<' (less than) becomes '&lt;' 

Example
$new = htmlspecialchars("<a href='test'>Test</a>", ENT_QUOTES);
echo $new; //Outputs:  &lt;a href=&#039;test&#039;&gt;Test&lt;/a&gt;

(Uniform Resource Locator ) urlencode & urldecode in php

urlencode & urldecode in php

urlencode  — This function returns the string output

URL is converted into a valid ASCII format.
URL Encoding space is replaced by %20

Example
urlencode('Hello milind') return output ==>> Hello%20milind 

another example
urlencode('http://www.mywebsite.com/index.php?name=milind chaudhari&id=25');

Output is http://www.mywebsite.com/index.php?name=milind%20chaudhari&id=25

urldecode  — This function returns the string output
Decodes URL-encoded string

Returns the decoded string.

Example
urldecode('http://www.mywebsite.com/index.php?name=milind%20chaudhari&id=25');

Output
http://www.mywebsite.com/index.php?name=milind chaudhari&id=25

Create Cron job/Task scheduler on windows local machine

For developer , It is most important to run the specific program for specific time of interval on local machine (localhost).
It can be done with the help of task scheduler

For Task schedular Go to the Start >> All programs >> Accessories >> System Tools >> Task Scheduler

Then click on Create Task
Fill all the details, please add the .bat file and complete the process.
Please specify the commands in to your .bat file.

In that .Bat file

D:\xampp\php\php.exe -f "D:\xampp\htdocs\mysqlbackup.php"


In mysqlbackup.php

$dbhost = "localhost"; // usually localhost
$dbuser = "root";
$dbpass = "";
$dbname = "Db_name";

$backupfile = 'E:/'.$dbname . date("Y-m-d") . 'todayDb.sql';
 system("D:/xampp/mysql/bin/mysqldump.exe -h $dbhost -u $dbuser $dbname > $backupfile");

How to run PHP program on command prompt

Most time we run the php program though the web browsers. But if we want to run the php program from command prompt then we know how to run on Windows and Linux machine.

On Windows machine

C:\>  D:\path\to\php.exe -f  "D:\path\to\www\myfile.php"

On Linux machine

php myfile.php