Push same key to associative array in PHP - php

Question

I'm trying to add arrays to an associative array in PHP. I know this isn't how you're supposed to use the keys but I'm parsing the array to XML which needs te same <line> tag.
Desired array:
array(
'line' => array(
// Ean-artikelcode
'Article_Eancode' => 8710624618216,
// Leveranciersartikelcode
'Article_Supplier_Partno' => 22304
),
'line' => array(
'Article_Eancode' => 8710622648216,
'Article_Supplier_Partno' => 22304
)
);
Which I am trying to get with this code:
$artikelenFormatted = array();
$artikelen = array(
'a',
'b',
'c'
);
foreach ($artikelen as $art) {
$artikelenFormatted['line'] = array(
"Article_Eancode" => "a",
"Article_Supplier_Partno" => "b"
);
}
Which produces:
array (size=1)
'line' =>
array (size=2)
'Article_Eancode' => string 'a' (length=1)
'Article_Supplier_Partno' => string 'b' (length=1)
Because $array['line'] keeps getting overwritten so there aren't multiple entries
How would I do this?
EDIT: Sample of the desired XML
<Lines>
<Line>
<Article_Eancode>87XXXXXXXXXXX</Article_Eancode>
<Article_Supplier_Partno>22304</Article_Supplier_Partno>
</Line>
<Line>
<Article_Eancode>87XXXXXXXXXXX</Article_Eancode>
<Article_Supplier_Partno>22303</Article_Supplier_Partno>
</Line>
<Line>
<Article_Eancode>87XXXXXXXXXXX</Article_Eancode>
<Article_Supplier_Partno>22324</Article_Supplier_Partno>
</Line>
<Line>
<Article_Eancode>87XXXXXXXXXXX</Article_Eancode>
<Article_Supplier_Partno>22305</Article_Supplier_Partno>
</Line>
<Line>
<Article_Eancode>87XXXXXXXXXXX</Article_Eancode>
<Article_Supplier_Partno>22323</Article_Supplier_Partno>
</Line>
</Lines>

Answer 1

An array cannot have two (or more) of the same key. Consider; what would $array['line'] return?
What you're looking for is:
foreach ($artikelen as $art) {
$artikelenFormatted['line'][] = array(
"Article_Eancode" => "a",
"Article_Supplier_Partno" => "b"
);
}
Notice the [] after ['line']. This will make $artikelenFormatted['line'] an array where each element is an array of the data.
Edit:
To get it to work with XML, use the following:
foreach ($artikelen as $art) {
$artikelenFormatted[]['line'] = array(
"Article_Eancode" => "a",
"Article_Supplier_Partno" => "b"
);
}
And amend the array_to_xml function you reference to:
function new_array_to_xml( $data, &$xml_data ) {
foreach( $data as $key => $value ) {
if( is_array($value) ) {
if( is_numeric($key) ){
array_to_xml($value, $xml_data);
}
else
{
$subnode = $xml_data->addChild($key);
array_to_xml($value, $subnode);
}
} else {
$xml_data->addChild("$key",htmlspecialchars("$value"));
}
}
}

Answer 2

I solved this by using:
foreach ( $artikelen as $art ) {
$artikelenFormatted [] = array (
"Article_Eancode" => "a",
"Article_Supplier_Partno" => "b"
);
Which would output
array (size=2)
0 =>
array (size=2)
'Article_Eancode' => string 'a' (length=1)
'Article_Supplier_Partno' => string 'b' (length=1)
1 =>
array (size=2)
'Article_Eancode' => string 'a' (length=1)
'Article_Supplier_Partno' => string 'b' (length=1)
And editing my array_to_xml() function to change numeric keys to the string 'line' which produces the right XML
private function array_to_xml($entries, &$tmpXML) {
foreach ( $entries as $key => $value ) {
if (is_array ( $value )) {
if (! is_numeric ( $key )) {
$subnode = $tmpXML->addChild ( "$key" );
$this->array_to_xml ( $value, $subnode );
} else {
$subnode = $tmpXML->addChild ( "line" );
$this->array_to_xml ( $value, $subnode );
}
} else {
$tmpXML->addChild ( "$key", htmlspecialchars ( "$value" ) );
}
}
}
Thanks for everyone's input

Answer 3

You can't have the same keys but you can have :
EDIT 1 :
array(
[0] => array(
'line' => array(
// Ean-artikelcode
'Article_Eancode' => 8710624618216,
// Leveranciersartikelcode
'Article_Supplier_Partno' => 22304
)),
[1] => array(
'line' => array(
'Article_Eancode' => 8710622648216,
'Article_Supplier_Partno' => 22304
))
);
And you can do it like this :
foreach ($artikelen as $art) {
$artikelenFormatted[] = array(
'line' => array(
"Article_Eancode" => "a",
"Article_Supplier_Partno" => "b"
);
}