PHP Switch - mini tutorial.

[Excellent2]

Hey, just wanted t share a cool little function I once came upon a while back when I was new to PHP. The name itself is pretty self explanatory allowing for you to easily switch through pages, so lets start.

Start off with a base code like this:

<?php

switch($_GET[page]) {
default:
echo "<a href='?page=hello'>Hello</a>";
break;

case 'hello':
echo "Hello";
break;
}

?>

Now let me explain what this does, first of all we initiate the switch function then use the $_GET statement to grab the page we want to view.

default: is basically the default page upon page load, so if you went to www.site.com/index.php you'd get a link with "Hello" on it. We then use the break; statement to break the page.

Case.
We use the case statement to grab the end of the url from the default echo which in our case was hello, this allows us to link to an entirely different page using that simple feature.

Have fun!
Oh, you can also do multiple clauses by using:

<?php

switch($_GET[page]) {
default:
echo "<a href='?page=hi'>Hi</a>";
break;

case 'hi':
echo "<a href='?page=bonjour'>Bonjour</a>";
break;

case 'bonjour':
echo "Bonjour!";
break;
}

?>

See what I did?

Closed by Invent (Forum Moderator): Thread closed due to prevent (further) arguments.

[Jme]

You need to add slashes before your quotes so it doesn't think you're ending the string.

 <?php

switch($_GET[page]) {
default:
echo "<a href\"=?page=hi\">Hi</a>";
break;

case 'hi':
echo "<a href=\"?page=bonjour\">Bonjour</a>";
break;

case 'bonjour':
echo "Bonjour!";
break;
}

?>

Also, you missed a quote in your first <a> tag

Nevermind. I see you've edited it now anyway

[Protege]

Delete, forum lagg.

[Protege]

I think php.net would help them better tbh. Seeing as you can't even get the alignment right in a switch, making it confusing for even me so even more confusing for a beginner.

I don't think you needed to post this. Sorry.

$_GET[ 'page' ] or $_GET[ "page" ]

& default is suppose to be at the bottom.

@ Invent, support untidy coding +rep

[Invent]

Seeing as you can't even get the alignment right in a switch

What do you mean by that? Indentation? If so, indenting code is a personal preference and you don't have to do it.

So you think you should have to indent code which is a personal preference? Then why the hell do you and other people have a go at charlie when he says things about using parenthesis with language constructs when you're doing the exact same thing moaning about indentation?

[Excellent2]

You need to add slashes before your quotes so it doesn't think you're ending the string.

 <?php

switch($_GET[page]) {
default:
echo "<a href\"=?page=hi\">Hi</a>";
break;

case 'hi':
echo "<a href=\"?page=bonjour\">Bonjour</a>";
break;

case 'bonjour':
echo "Bonjour!";
break;
}

?>

Also, you missed a quote in your first <a> tag

Nevermind. I see you've edited it now anyway

Yeah the proper way would be for slashes but for mini things like this tutorial for beginners I just use '' Yeah I edited haha, saw the rest of the code was red.

I think php.net would help them better tbh. Seeing as you can't even get the alignment right in a switch, making it confusing for even me so even more confusing for a beginner.

I don't think you needed to post this. Sorry.

The alignment is fine and indentation is not something I always use..

What do you mean by that? Indentation? If so, indenting code is a personal preference and you don't have to do it.

Yeah he's on about indentation which as you said is a personal preference, he's just being picky to my work.

[Dentafrice]

It should be indented though for a tutorial, as you're teaching people who do not know how to code.. incorrect procedures..

They won't learn to indent their code.

Plus default: should be at the bottom.

[Protege]

+rep Excellent2

Nice work

+rep to Invent as I need to spread.

[Excellent2]

It should be indented though for a tutorial, as you're teaching people who do not know how to code.. incorrect procedures..

They won't learn to indent their code.

Plus default: should be at the bottom.

I'll remember that for my next tutorial

[Hypertext]

switch isn't a function.

:rolleyes:

If your going to make a tutorial, at least code it well, indentation, having default at the bottom, using strings in your get array.

oh denta just said the exact same thing... thats like a teacher teaching you to code in tables -- you shouldn't do it.