[SOLVED] Accessing multiple arrays using foreach

[kektex]

Hello,

I have been searching all afternoon for an answer to this and haven´t found a solution so my last resort is asking here 

 

I am collecting links from a few documents on our site using this:

<?php 
  $data = file_get_contents('http://www.example.com/');
  
   preg_match_all("/out\.php\?url\=(.+?)\" target/",$data,$match);
   preg_match_all("/class\=\"id\" title\=\"(.+?)\"/",$data,$desc);
   


  foreach($match[1] as $url ) && foreach($desc[1] as $fulldesc){
     
         echo urldecode($url);
         echo "\| $fulldesc<br>";
        
          }
?>

 

Basically , I want to output all the links and their respective descriptions separated by a pipe character.

But reading from the two arrays is giving me a bit of a hard time.I now know I cannot use the && operator, I just left it in so you guys could see what I´m trying to do.

How can I do this?

 

I´m not much of a programmer but from what I have read the other option I have is using multi-dimensional arrays?

I might be extracting the URL, the description and then some more data later on so this might be a better approach.

 

Thanks for any help or advice.

 

 

[kektex]

Bump for me

[MadTechie]

do you have an example of what you want to pull out

 

i assume your looking for a url and pulling out the title, maybe searching for href would be better!

[MasterACE14]

your having the same problem as me  :-\ http://www.phpfreaks.com/forums/index.php/topic,161819.30.html

the only thing is, I am already using multi-dimensional arrays.

 

Regards ACE

[MadTechie]

quick example, maybe usless (untested)

 

<?php
$data = file_get_contents('http://www.example.com/');

//Find <a> tags
preg_match_all('%<a.*</a>%i', $data, $result, PREG_PATTERN_ORDER);
$aTags = $result[0];

//Loop through tags
foreach($aTags as $aTag)
{
//find titles
if (preg_match('/title=([\s"\'])*(.*?)\1/i', $aTag, $regs))
{
	$title = $regs[2];
} else {
	$title = "";
}
//find href
if (preg_match('/href=([\s"\'])*(.*?)\1/i', $aTag, $regs))
{
	$href = $regs[2];
} else {
	$href = "";
}
//display results
echo "found: $href with the title: $title";
}
?>

[kektex]

Actually my problem is not the regex or finding the URLs and descriptions, my code already does that.

The problem I´m having is outputting the URL and it´s respective anchor text to a text file.

An example link:

<a href="out.php?url=http://www.example.com/exampledocument.html" target="_blank" class="id" title="LINK DESCRIPTION">Link Description</a>

 

I managed to pull the link from the a href without any problems as well as the LINK DESCRIPTION ( I could have also taken it from the anchor text, they are the same.)

 

What I want to do is output both things to a text file like this:

 

http://www.example.com/exampledocument.html | LINK DESCRIPTION 

 

Is there any way to use foreach to do this or should I try to use a multi-dimensional array (not that I know how to do that anyway but I'll just read up on it).

 

[BlueSkyIS]

as you're finding links and descriptions, i would store them in an array of arrays. that is, something like this:

 

pseudocode....

 

$all_links = array();
while(looking for links) {
     if (a link is found) {

          $all_links[] = array($link_url, $link_description);
     }
}

// After you find and store all links and descriptions...
foreach ($all_links AS $link_info) {
     echo $link_info[0]." | ".$link_info[1]; // choose appropriate line break.
}

[MadTechie]

in your example above

  foreach($match[1] as $url ) && foreach($desc[1] as $fulldesc){
     
         echo urldecode($url);
         echo "\| $fulldesc<br>";
        
          }

you could fix it like this

foreach($match[1] as $K => $url )
{
     $fulldesc = $desc[1][$K];
     echo urldecode($url);
     echo "\| $fulldesc<br>";
}

 

BUT.. if a description is missing it will mess up..

 

my code will not have this problem, but for the output change

this

echo "found: $href with the title: $title";

to this

echo urldecode($href)." | $title";

 

[kektex]

Thanks MadTechie your fix in my code worked great!

I went through your other code but since I dont know that much PHP I had a hard time understanding it.I will go through it later once I get a bit more PHP savvy.

 

Also, thanks BlueSkyIS, I will also take a look at your code when I'm learning about multidimensional arrays. I think I might improve my script later on using those arrays.