Jump to content


Photo

Help With Foreach


  • Please log in to reply
3 replies to this topic

#1 php_joe

php_joe
  • Members
  • PipPipPip
  • Advanced Member
  • 175 posts

Posted 29 June 2006 - 03:49 PM

Ok,

I have a file with a table on it:

<table>
<tr><td>Pet</td><td>Owner</td><td>Location</td></tr>
<tr><td>Cat</td><td>John</td><td>City</td></tr>
<tr><td>Dog</td><td>Amy</td><td>City</td></tr>
<tr><td>Dog</td><td>Wayne</td><td>Country</td></tr>
<tr><td>Cat</td><td>Sarah</td><td>City</td></tr>
<tr><td>Cat</td><td>Jack</td><td>Country</td></tr>
</table>

I want to only show the rows with Cats. So far I have:

$content = file_get_contents($url);  
$content[1] = str_replace("<table>", "", $content[1]);
$content[1] = str_replace("<tr><td>", "", $content[1]);
$content[1] = str_replace("</td></tr>", "", $content[1]);
$content[1] = str_replace("</table>", "", $content[1]);
$content[1] = str_replace("</td><td>", "|", $content[1]);

If I echo $content[1] I will get:

Pet|Owner|Location
Cat|John|City
Dog|Amy|City
Dog|Wayne|Country
Cat|Sarah|City
Cat|Jack|Country


I obviously want to explode the data at each "|" but how do I loop through each line? I have been trying to figure out foreach because that seems to be what I need, but I can't seem to figure it out. :(

Thanks in advance!

Joe
[url=http://darkswordsguide.com][/url]

#2 Buyocat

Buyocat
  • Members
  • PipPipPip
  • Advanced Member
  • 267 posts

Posted 29 June 2006 - 03:58 PM

Why don't you store this information in a database instead of a marked up file, that way you can make it take any form you want, instead of having to rip formatting off the previous entry.

If a database isn't an option then I have a second solution for you that will get around this formating business. Create a text file somewhere with the information stored like so...

Cat|John|City
Dog|Amy|Country

etc
Then use open the file and get the contents with the file() function. You'll now have an array of strings, where each line is an entry in the array. So then you can eregi each array value for the string "Cat" if found you display that, exploding the string and then putting it into a table format. Otherwise you skip it and move on. This has the added benefit of making it easy to switch to dogs later, or both. It also let's you apply any formatting you want.
Looking for some easy-to-use tools?  Try these, https://sourceforge....jects/utils-php -- I made them myself.  They're distinct tools which are easy to understand and use.  See some examples uses at http://www.anotherearlymorning.com

#3 wildteen88

wildteen88
  • Staff Alumni
  • Advanced Member
  • 10,482 posts
  • LocationUK, Bournemouth

Posted 29 June 2006 - 04:38 PM

If you want to get each line seperatly you'll need to use explode, like so:
$content[1] = explode("\n", $content[1]);
Now each line will be in its own array you'll this:
$content[1][x]

x being the line number. But rememeber arrays start at zero. SO if you want line 5 you'll need to replace x with 4 like so:
$content[1][4] // line5

Hope that helps.

Also you can use a foreach loop to do the dirty work for you to get each line, like so
foreach($content[1] as $key => $value)
{
    echo "\$content[{$key}] = \"$value\"<br />\n";
}

Then if you want to get the Pet, Owner and address on their own use the following in your foreach loop instead:
foreach($content[1] as $key => $value)
{
    ($pet, $owner, $address) = explode("|", $content[1][$key]);

    echo $owner . ' has a ' . $pet . ' which lives at ' . $address;
}

Hope that helps.

#4 php_joe

php_joe
  • Members
  • PipPipPip
  • Advanced Member
  • 175 posts

Posted 30 June 2006 - 07:29 AM

Thanks wildteen88! It worked.

And thanks for the suggestion Buyocat. It's always a good idea to make it as simple as possible.
[url=http://darkswordsguide.com][/url]




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users