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Installing ns-3.37 and ns-3.35 in Ubuntu | Ubuntu 22.04 | NS3

Multiple Versions of ns3 in Ubuntu 22.04 In this post, we are going to install two versions of ns3 namely ns-3.35 and ns-3.37  My OS is : Ubuntu 22.04 LTS (Long Term Support) ns-3.35 uses waf and (./waf --run scratch/first)  ns-3.37 uses cmake  (./ns3 run scratch/first.cc) So we will install both the packages  Go through the video for complete instructions To start with  $ sudo apt update  $ sudo apt install build-essential autoconf automake libxmu-dev g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libclang-dev llvm-dev automake python3-pip libxml2 libxml2-dev libboost-all-dev  I have downloaded both the versions of ns3 fr

Sending Email in PHP

How to send email using PHP. The following section describes that with coding…..

Before using Mail in PHP, note that, PHP mail is intended for only a small scale use and not for large scale Email systems. So for large scale, you may use other mal softwares.

Email can be sent

  • as ordinary plain message
  • as an HTML Message
  • with attachments

We will see, one by one

Mail in PHP

there is a function mail() which helps in sending mails through PHP Scripts.

the syntax is mail(To address, Subject, Message, headers)

To address – to which address you want to send mail

Subject of the mail -

Message – body of the mail and

headers – are the http headers sent along with the mail to inform the email clients

Example Headers are

  1. “From:abc@xyz.com ” //to inform the from address
  2. “Reply-To:xyz@xyz.com ” //Reply to a different email id
  3. “Bcc:a@a.com ” //Blind Carbon Copy
  4. “Cc:b@b.com” //Carbon Copy
  5. Return-Path:abc@a.com”
  6. X-Mailer: PHP5 //inform the email client
  7. MIME-Version:1.0
  8. Content-Type: text/plain” //text/html or multipart/mixed, multipart/alternative (content type is useful for attaching files with MIME headers)
  9. Content-Disposition: attachment;filename=”image.jpg”
  10. Content-Transfer-Encoding: base64″ //Encoding Standards

Email as ordinary Plain message

<?php

$to=”abc@xyz.com”;

$subject=”This is a Simple mail from PHP”;

$message=”<h1>this is a text message</h1>”;

$m=mail($to,$subject,$message);

if($m)

echo “Mail sent successfully”;

else

echo “Mail Failed”;

?>

The mail() function returns a boolean value, so if the mail is sent successfully, it returns 1 else 0. Since the above script does not uses any headers, the mail will be sent as plain text mail and the H1 tag wont be validated for a HTML.

The following code send mail as a HTML page

Email as HTML message

<?php

$to=”abc@xyz.com”;

$subject=”This is a Simple mail from PHP”;

$message=”<h1>this is a text message</h1>”;

$headers = “Content-Type: text/html \r\n”;

$m=mail($to,$subject,$message,$headers);

if($m)

echo “Mail sent successfully”;

else

echo “Mail Failed”;

?>

The above script uses a MIME type as text/html, to the message with H1 rendered as an HTML Tag and the message will display with size of header 1

Email with attachments

Lot of headers to be used for Emails with attachments.

<?php

//set the to, subject and message
$to=”tspembedded@gmail.com”;
$subject=”Here’s the mail with attachment”;
$message=”I am attaching a PDF file for your information”;

//Open the file to attach

$filename=”rts.pdf”; //name of the file and its path

$f=fopen($filename,”rb”); //open the file under binary mode
$data=fread($f,filesize($filename));  //read the file and its size
fclose($f); //close the file pointer
//header setting
$data=chunk_split(base64_encode($data)); //split the file and encode each chunks to base 64
$headers=”Content-Type: application/pdf \r\n”; //since it is a pdf file, mention the mime type
$headers.=”Content-Disposition: attachment;filename=rts.pdf \r\n”; //header to attach the file with filename
$headers.=”Content-Transfer-Encoding: base64 \r\n”.$data.”\r\n”; //header with encode setting

$m=mail($to,$subject,$message,$headers);
if($m)
echo “mail to $to is a success”;
else
echo “Mail to $to Failed”;
?>

the Mime type used in the above script is application/pdf, so only the attachment will be shown in the email client, but the message wont be showed at all…

to make mixed mode, use the mime type as multipart/mixed.

For any other queries and suggestions, Please Comment!!!!!!

Comments

  1. [...] http://pradeepkumar.org/2009/09/sending-email-in-php.html Categorized under: Uncategorized. Tagged with: no tags. [...]

    ReplyDelete
  2. Great work .. but would be excellent if you could add syntax highlighter plugin to show the PHP code in highlighted way :)

    ReplyDelete
  3. Nice tutorial. I was looking for this ...

    ReplyDelete

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