Get Value Only From Multidemensional Code after a csv parse - php

Question

I have been trying to get the value of my combined rate, but running into some trouble with simply getting the value :
Array ( [0] => Array ( [ZipCode] => 01014 [CombinedRate] => 0.0625 ) ) <--- this is the array that is printed.
Here is the full code:
<?php
function csv_to_array($filename= '', $delimiter=',')
{
if(!file_exists($filename) || !is_readable($filename))
return FALSE;
$header = NULL;
$data = array();
if (($handle = fopen($filename, 'r')) !== FALSE)
{
while (($row = fgetcsv($handle, 1000, $delimiter)) !== FALSE)
{
if(!$header)
$header = $row;
else
$data[] = array_combine($header, $row);
}
fclose($handle);
}
return $data;
}
$zipsearch = csv_to_array($_SERVER['DOCUMENT_ROOT'].'/textfiles/taxes.csv');
function search($array, $key, $value)
{
$results = array();
if (is_array($array)) {
if (isset($array[$key]) && $array[$key] == $value) {
$results[] = $array;
}
foreach ($array as $subarray) {
$results = array_merge($results, search($subarray, $key, $value));
}
}
return $results;
}
$valueofzip = search( $zipsearch, 'ZipCode', '01014');
print_r($valueofzip)
/*
Need Code To print Just value of that array
*/
?>
I just need the value of the combined rate after the zipcode is found from the array that is printed, but for whatever reason I am just missing it,
How do I just get the value of "Combined Rate" from this array that is printed : Array ( [0] => Array ( [ZipCode] => 01014 [CombinedRate] => 0.0625 ) )
Essentially this page will print out a single tax rate

Answer 1

It looks like the value that you are trying to retrieve is simply:
$valueofzip[0]['CombinedRate']
i.e. the value with the key "CombinedRate" in the zeroth element of $valueofzip.
If you are anticipating there being more than one array returned by your search function, then a foreach loop would be more appropriate:
foreach($valueofzip as $zip) {
if (isset($zip['CombinedRate'])) echo $zip['CombinedRate'];
}
Depending on exactly what you want to do with the value, you might also want to take a look at array_walk, array_map, etc. in the documentation. They can be used to traverse the array and apply a callback function to each element. For example:
$valueofzip = array(array("ZipCode" => 01014, "CombinedRate" => 0.0625),
array("ZipCode" => 02025, "CombinedRate" => 0.125 ));
$combined_rates = array_map(function($x) { if (isset($x['CombinedRate'])) return $x['CombinedRate']; }, $valueofzip));
print_r($combined_rates);
Output:
Array
(
[0] => 0.0625
[1] => 0.125
)