For and foreach not friends?

[rockinaway]

                                // Loop within the values array
                                for ($i = 0; $i < count($array); $i++)
                                {
                                        // Now we go through the keys
                                        foreach ($array[$i] as $key => $value)
                                        {
                                                $keys[] = '{X_'.$key.'}';
                                                $values[] = $value;
                                        }

                                        // Assign values within the loop source and add to data variable
                                        $data .= str_replace($keys, $values, $loop_source);
                                }

 

I have this for and foreach setup so that I can loop and replace through some values.

 

The $array variable is a multi-dimensioned array...(i think!)..

 

It is like:

 

$array = array (
  'test' => array (
              'test2' => 'yes'
             ),
  'test2' => array (
              'test3' => 'yes'
             ),
);

 

That is just an example. However I am having problems looping through. I always get this error:

 

Warning: Invalid argument supplied for foreach()

 

What is wrong?

[aschk]

It's probably not a multi-dimensional array.

Do:

<?php

echo "<pre>";
print_r($array);
echo "</pre>";

?>

 

to verify that it is.

[Psycho]

Based upon the array at the end of your post the problem is that you are trying to reference those inner arrays with numerical values using the $i variable. There is NO $array[0] value so your foreach loop is failing. You need to reference those inner arrays using their proper index values:

 

<?php
// Loop within the values array
foreach ($array as $subarray)
{
   // Now we go through the keys
   foreach ($subarray as $key => $value)
   {
       $keys[] = '{X_'.$key.'}';
       $values[] = $value;
   }

   // Assign values within the loop source and add to data variable
   $data .= str_replace($keys, $values, $loop_source);
}
?>

[rockinaway]

Doing what aschk said, I got repeated 'Array' on the page

 

mjdamato - I did what you said. However I still get the same error for the line:

 

foreach ($array as $subarray)

 

What can be wrong?

[kenrbnsn]

You don't have any numerically indexed entries in your array, so $array[0] is meaningless. Use two foreach loops:

<?php
$array = array (
  'test' => array (
              'test2' => 'yes'
             ),
  'test2' => array (
              'test3' => 'yes'
             ),
);
$keys = array();
$values = array();
foreach ($array as $ary)
   foreach ($ary as $k => $v) {
       $keys[] = '{X_'.$k.'}';
       $values[] = $v;
   }
echo '<pre>' . print_r($array,true) . '</pre>';
echo '<pre>' . print_r($keys,true) . '</pre>';
echo '<pre>' . print_r($values,true) . '</pre>';
?>

 

Ken

 

 

[rockinaway]

Doing what aschk said, I got repeated 'Array' on the page

 

mjdamato - I did what you said. However I still get the same error for the line:

 

foreach ($array as $subarray)

 

What can be wrong?

 

^^^ That is what mjdamato suggested.. however problem resides...

[rockinaway]

Ok, I am past that.

 

But now, when I echo out the result. The same value has been replaced for each one.

 

So instead of test1 and test2, test1 and test1 again.. what could be causing the overwriting?

[Psycho]

Because your:

 

$data .= str_replace($keys, $values, $loop_source);

 

is inside the loop. Move it after the loops.

[rockinaway]

But then it only shows one of the results.. no more...

[Psycho]

Really? that makes no sense, because your loop is continually adding to the $keys and $values arrays. The way you had it before would first process all the values from the first array - then it would process all the values from the first & second arrays. You really haven't provided enough information to help you.