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PHP

Eitay Zilbershmidet
Eitay Zilbershmidet
3,942 Points
Posted by Eitay Zilbershmidet
Eitay Zilbershmidet
3,942 Points

Why do I need this "$email_body" empty var?

<?php $name = $_POST["name"]; $email = $_POST["email"]; $details = $_POST["details"];

echo "<pre>"; $email_body = ""; $email_body .= "name " . $name . "\n"; $email_body .= "email " . $email . "\n"; $email_body .= "details " . $details . "\n"; echo $email_body; echo "</pre>"; ?>

Also, I don't understant why the var print all the information, isn't it should be reset after every line of code?

2 Answers

David Andrews
David Andrews
17,403 Points
David Andrews
David Andrews
17,403 Points

You are building the $email_body variable using string concatenation (appending the right hand string to the left hand string stored in the variable.)

$email_body = "";
$email_body .= "name " . $name . "\n";
$email_body .= "email " . $email . "\n";
....

The first line is setting $email_body to an empty string. The second line is concatenating ( with .= ) the right hand string to $email_body. The third line is again concatenating. The end result is a full listing of the strings stored in the $email_body variable.

Link to the PHP Manual Reference

Eitay Zilbershmidet
Eitay Zilbershmidet
3,942 Points
Eitay Zilbershmidet
Eitay Zilbershmidet
3,942 Points

Hi,

Now I get it. Thank you for the answer :)