[SOLVED] Php to check html link

[SirChick]

Say you have:

 

<a href="ukroaddriving.php">road 1</a>
<a href="ukroaddriving.php">road 2</a>
<a href="ukroaddriving.php">road 3</a>

 

is there a way to use php to check which of the 3 links was clicked using if statements?

[Dragen]

Why don't you use GET variables to tell the file what was clicked. Something like:

<a href="ukroaddriving.php?road=1">road 1</a>
<a href="ukroaddriving.php?road=2">road 2</a>
<a href="ukroaddriving.php?road=3">road 3</a>

 

Then on ukroaddriving.php have a check to read the GET var:

<?php
$road = $_GET['road'];
?>

[SirChick]

i been told that get is a bad idea to use and should use post? can post be done also or only get?

[Dragen]

Post could be used, but it's needless hassle for something like that.

I presume all you're doing is checking which link is clicked so you can display the correct information?

 

I'd use a simple GET var.

[cooldude832]

Get isn't "Bad" it is just different from post. they both have unique properties to them that you should investigate before you make an assumption about them.  I use GET a lot on my sites and I use POST a lot less on my sites only because I don't have a need for it.  This site uses GET and you can clear see it isn't "bad"

[SirChick]

well the idea is :

 

<a href="ukroaddriving.php?road=1">road 1</a>
<a href="ukroaddriving.php?road=2">road 2</a>
<a href="ukroaddriving.php?road=3">road 3</a>

if road 1 {
echo 'road 1'}
elseif road 2{ 
echo 'road 2'}
}else{
echo 'road 3'
}

 

 

 

thats the principal idea just by the page refreshing rather than going to a diffrent process page and then reloading the page to display it...

[Dragen]

Yeah that would work, but use the GET vars, also a switch might be good:

<a href="ukroaddriving.php?road=1">road 1</a>
<a href="ukroaddriving.php?road=2">road 2</a>
<a href="ukroaddriving.php?road=3">road 3</a>

if(isset($_GET['road']){
    switch($_GET['road']){
        case '1':
            echo 'road1';
        break;
         case '2':
            echo 'road2';
        break;
        case '3':
            echo 'road3';
        break;
        default:
            echo 'invalid road selected';
        break;
   }
}

[cooldude832]

so i take it you gave up on my map idea

[SirChick]

Yeah that would work, but use the GET vars, also a switch might be good:

<a href="ukroaddriving.php?road=1">road 1</a>
<a href="ukroaddriving.php?road=2">road 2</a>
<a href="ukroaddriving.php?road=3">road 3</a>

if(isset($_GET['road']){
    switch($_GET['road']){
        case '1':
            echo 'road1';
        break;
         case '2':
            echo 'road2';
        break;
        case '3':
            echo 'road3';
        break;
        default:
            echo 'invalid road selected';
        break;
   }
}

 

if i did the if statements on a different php file would it automatically carry the get accross when the link is pressed or is it to only the page in which the code is on ?

[Dragen]

If it's a different file then You'll need to pass the GET across, unless the other file is 'include'd in the file which has the GET in the url.

[SirChick]

im lost now..

 

say one file is test.php

 

which has

<a href="process.php?road=1">road 1</a>

 

then process.php has:

 

if(isset($_GET['road']){
    switch($_GET['road']){
        case '1':
            echo 'road1';
        break;
         case '2':
            echo 'road2';
        break;
        case '3':
            echo 'road3';
        break;
        default:
            echo 'invalid road selected';
        break;
   }
}

 

would it work ?

[Dragen]

oh, yeah. that would work fine.

 

Sorry I thought you meant collecting the GET on one page and then sending it to another

[SirChick]

ok thankyou Dragen