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Echo a Variable

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Join Date: Jul 2007

Posts: 89

Reputation: Reliable is an unknown quantity at this point

Solved Threads: 2

Reliable

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Junior Poster in Training

Echo a Variable

Oct 13th, 2009

I've been echoing variables by simply typing "echo" then the variable. For instance:

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<?php  
$name =  "Me";
 echo $name;
?>
<?php  
$name =  "Me";
 echo $name;
?>

This has been working just fine. I was watchign a tutorial and when he echoed his variable he put his in curly brackets. This is the example:

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<?php
$username = $_POST['username'];
$password = $_POST['password'];
 
echo "{username} : {$password}";
?>
<?php
$username = $_POST['username'];
$password = $_POST['password'];

echo "{username} : {$password}";
?>

Did he do it like that because of the POSTS command? Was this necessary? Help me understand, please? Thanks

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Join Date: May 2008

Posts: 524

Reputation: Will Gresham is on a distinguished road

Solved Threads: 86

Will Gresham Will Gresham is offline

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Posting Pro

Oct 13th, 2009

Its not needed there, there are a couple of uses for the braces, such as variable variables, but I believe the most common use is to include array vars in a string.

For example:

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echo "My name is {$_GET['name']}<br />";

instead of this:

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echo "My name is " . $_GET['name'] . "<br />";
echo "My name is " . $_GET['name'] . "<br />";

AJAX is not a programming language, scripting language or any other sort of language.
It is acheived by using JavaScript http functions.
So, AJAX = JavaScript.