basics

[Frog Brew]

Ok I am still getting though the basics here.

special characters you can use in strings: \n and \t. You
can use \n to start a new line in a string, as in the following statements:

So I put in

$string = “Hello \nWorld”;
echo $string;

But the output is still Hello World instead of
Hello
World

[thetestingsite]

Try

$string = "Hello \r\nWorld";
echo $string;

Then it should display:

Hello
World

[Frog Brew]

I just tried that and it did not work...
still displayed Hello World

[Twey]

This is because HTML ignores linebreaks.

If you look at the source, you will see:

Hello 
World

but if you want to display a linebreak in HTML, you must use <br> (or, preferably, start a new block-level element; <br> is rarely appropriate).

[Frog Brew]

That's what I had been doing prior to reading this, so now I am confused as to why would anyone use \n or \t anyways?

I am sure there is a good reason I just don't know it.

[thetestingsite]

That's what I had been doing prior to reading this, so now I am confused as to why would anyone use \n or \t anyways?

I am sure there is a good reason I just don't know it.

I would think mostly for automated messages (emails) or inserting data to a text file, and stuff like that.

Added Later: I forgot about HTML ignoring line breaks. Thanks Twey for refreshing my memory on this.

[Twey]

That's what I had been doing prior to reading this, so now I am confused as to why would anyone use \n or \t anyways?

I am sure there is a good reason I just don't know it.

Because PHP outputs to other formats than HTML

Plus it's a convention still common from C.

[Frog Brew]

Ok thanks...am I dislodging memories from wake back when lol..

[Frog Brew]

Also...is it possible that some things may not work because I reading a book on PHP 5 ? My version on the server is 4.4.4.

<?php
$string1 = "Hello";
$string2 = "World!";
$stringall = $string1.$string2;
echo "$stringall";

?>

Notice that no space appears between Hello and World!. That’s because no
spaces are included in the two strings that are joined. You can add a space
between the words by joining three strings together — the two variables and
a string that contains a single space — with the following statement rather
than the earlier statement:
$stringall = $string1._ _.$string2;

I am trying to get measly space between the 2 words and it's not working. I am going by the books intructions.

[mburt]

You don't need quotes around the echo. Try this:

$string1 = "Hello";
$string2 = "World!";
$space = " ";
$stringall = $string1.$space.$string2;
echo $stringall;

If you want multiple spaces...

$string1 = "Hello";
$string2 = "World!";
$max = 3; // number of spaces
for ($i = 0;$i<$max;$i++) {$space.="$nbsp;"};
$stringall = $string1.$space.$string2;
echo "$stringall";