Create array from foreach loop with key

Question

I couldn't quite find the exact solution that I am looking for.

I am trying to create an array from a foreach loop that retains the key. Here is the code I have so far but it only keeps the last value in the array:

foreach($links as $link) {
  //runs scrape_amazon function for each of the links
  $ret = scrape_amazon($link);

  foreach($ret as $key => $value) {
    //echo $key; 
    //echo $value;
    $final_results[$key] = $value;
  }
}

Could anyone help with a solution to keep all the values and the keys?

Thanks in advance!

Based on the way you're using the foreach loop it looks to me like your initial array would already have to be in the format of $ret[key] = value? — MoarCodePlz
– MoarCodePlz, Commented Jun 18, 2011 at 19:20
Your code should end up with $final_results being an exact copy of $ret (assuming it was empty to begin with). What did you expect to happen? — Jon
– Jon, Commented Jun 18, 2011 at 19:21
No I have a function that gathers data and puts it into $ret but each time it runs it overwrites the previous values. I'm trying to keep the key and value such as: [ASIN] => 123445 [Name] => Name [Retail] => 14.99. — Reg
– Reg, Commented Jun 18, 2011 at 19:29
Then the problem is not with the code you provided, but with when you assign values to $ret. The above simply creates an exact duplicate of $ret and places it in to $final_results, as Jon says. — Ross
– Ross, Commented Jun 18, 2011 at 19:33

Francois Deschenes · Accepted Answer · 2011-06-18 19:42:46Z

8

Based on your most recent comment, this should solve your problem:

$ret = array();

foreach($links as $link) {
  $ret[] = scrape_amazon($link);
}

Each time scrape_amazon() is called, it'll add the array returned to $ret making it into an array of arrays.

answered Jun 18, 2011 at 19:42

Francois Deschenes

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2 Comments

Reg Over a year ago

Yep. That does it to and creates a multidemensional. Thanks!

Francois Deschenes Over a year ago

@Reg - Seeing that you're new on this site, I just thought I'd kindly remind you to accept the answer. Thanks! :)

Adithya Surampudi · Accepted Answer · 2011-06-18 19:23:21Z

1

If you need an array of just keys, you need to do this

$ret_keys = array_keys($ret);

answered Jun 18, 2011 at 19:23

Adithya Surampudi

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Comments

Ben · Accepted Answer · 2011-06-18 19:24:53Z

1

why did you do that ? it's look like :

$final_results = $ret;

answered Jun 18, 2011 at 19:24

Ben

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3 Comments

Reg Over a year ago

I know $final_results is returning the same as $ret. That's the problem. I was think of using array_push but couldn't get it to work to build the results of $ret each time into a single $final_results array.

Ben Over a year ago

the only solution you have is : $final_results[] = $ret; or $final_results[$ret['ASIN']] = $ret;

Reg Over a year ago

Thank you. I see now the problem is it has to be multidemensional because there are 3 keys. Thanks for your help.

Playnox · Accepted Answer · 2012-12-06 06:46:20Z

-1

  // Create an empty array first      
  $final_results = array();
  foreach($links as $link) {
      //runs scrape_amazon function for each of the links
      $ret = scrape_amazon($link);
      $final_results[] = $ret; // DONE :)
  }

answered Dec 6, 2012 at 6:46

Playnox

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