Array To String Conversion error from a double array - php

Question

I am trying to do a double array to echo out "brown dog" and "white cat". I got an "Array to string conversion" error on the line where I am trying to echo out the statement. How can I fix this error? Thanks in advance. Below is my code:
<?
$pet1 = "dog";
$pet2 = "cat";
$arrayvalue = array();
$arrayvalue[0] = array("brown, "white");
$arrayvalue[1] = array("$pet1", "$pet2");
foreach($arrayvalue as $array)
{
echo "$arrayvalue[0] &nbsp $arrayvalue[1] </br>";
}
?>

Answer 1

The only way I can see this working is with a for loop. If you need to keep the current structure as it is, do this:
for ($i=0; $i<2; $i++)
echo $arrayvalue[0][$i] . ' ' . $arrayvalue[1][$i] . '<br>';
Here is how I would rewrite the program, keeping the current array structure and using the above for loop to solve your problem:
$pet1 = 'dog';
$pet2 = 'cat';
$arrayvalue = array(
array('brown', 'white'),
array($pet1, $pet2)
);
for ($i=0; $i<2; $i++)
echo $arrayvalue[0][$i] . ' ' . $arrayvalue[1][$i] . '<br>';
Output:
brown dog
white cat

Answer 2

You need to edit the foreach loop a little. Also, there's a problem with your quotes above. Try:
<?
$pet1 = "dog";
$pet2 = "cat";
$arrayvalue = array();
$arrayvalue[0] = array("brown", "white");
$arrayvalue[1] = array("$pet1", "$pet2");
foreach( $arrayvalue[0] as $key => $color ) {
echo "$color &nbsp $arrayvalue[1][$key] </br>";
}
?>
Basically instead of iterating through $arrayvalue, you should be going through the one with the colors or the one with the pets. In my example, I go through the one with the colors, and then reference the one with the pets, using $key to keep them in sync.
If possible, I would recommend using two separate arrays instead of one, or naming it more logically:
$array['colors'] = array("brown", "white");
$array['pets'] = array("$pet1", "$pet2");
foreach( $array['colors'] as $key => $color ) {
echo "$color &nbsp $array['pets'][$key] </br>";
}
//or
$colors = array("brown", "white");
$pets = array("$pet1", "$pet2");
foreach( $colors as $key => $color ) {
echo "$color &nbsp $pets[$key] </br>";
}

Answer 3

You are referencing $arrayvalue inside your foreach loop, when you should be using $array
foreach($arrayvalue as $array)
{
echo "{$array[0]} &nbsp {$array[1]} </br>";
}