CSV to Associative Array

I've seen numerous examples on how to take a CSV file and then create an associative array with the headers as the keys.

For example:

Brand,Model,Part,Test
Honda,Civic,123,244
Honda,Civic,135,434
Toyota,Supra,511,664

Where it would create an Array such as Array[$num][$key] where $key would be Brand, Model, Part, Test.

So If I wanted to access the test value "434" I would have to loop every index in the array and then ignore any Brands that were not honda, and any models that were not Civic

---

What I need to do is access the value most directly, instead of running through a for loop going through each $num index. I want to be able to access the value test "434" with:

Array['Honda']['Civic']['135']

or control a for statement with looping through every model Honda has... something like

foreach $model in Array['Honda']

At the very least I need to be able to go through every model given a known Brand and access all the relative info for each.

Edit:

Just to confirm I was setting this up an example. My actually data has headers like:

brand model part price shipping description footnote

Of which I need to access all the information tied to the part (price, shipping,desc, footnote)

Too many long solutions. I've always found this to be the simplest:

<?php
	/* Map Rows and Loop Through Them */
	$rows   = array_map('str_getcsv', file('file.csv'));
	$header = array_shift($rows);
	$csv    = array();
	foreach($rows as $row) {
		$csv[] = array_combine($header, $row);
	}
?>

run over the csv file line by line, and insert to array like:

$array = $fields = array(); $i = 0;
$handle = @fopen("file.csv", "r");
if ($handle) {
    while (($row = fgetcsv($handle, 4096)) !== false) {
        if (empty($fields)) {
            $fields = $row;
            continue;
        }
        foreach ($row as $k=>$value) {
            $array[$i][$fields[$k]] = $value;
        }
        $i++;
    }
    if (!feof($handle)) {
        echo "Error: unexpected fgets() fail\n";
    }
    fclose($handle);
}

To create an associative list array use something like:

$keys = fgetcsv($f);
while (!feof($f)) {
    $array[] = array_combine($keys, fgetcsv($f));
}

And to traverse and filter by specific attributes write a function like:

function find($find) {
    foreach ($array as $row) {
         if (array_intersect_assoc($row, $find) == $find) {
             $result[] = $row;
         }
    }
}

Where you would invoke it with $find = array(Brand=>Honda, Model=>Civic, Part=>135) to filter out the searched models. The other positional array structure seems not very workable, unless you only want to access the "Test" attribute.

Try this simple algorithm:

		$assocData = array();
		
		if( ($handle = fopen( $importedCSVFile, "r")) !== FALSE) {
			$rowCounter = 0;
		    while (($rowData = fgetcsv($handle, 0, ",")) !== FALSE) {
		    	if( 0 === $rowCounter) {
		    		$headerRecord = $rowData;
		    	} else {
    				foreach( $rowData as $key => $value) {
						$assocData[ $rowCounter - 1][ $headerRecord[ $key] ] = $value;	
    				}
		    	}
		        $rowCounter++;
		    }
		    fclose($handle);
		}
		
		var_dump( $assocData);

Using fgetcsv() seems the most direct and sensible tool for the job.

csv.csv contents:

Brand,Model,Part,Test
Honda,Civic,123,244
Honda,Civic,135,434
Toyota,Supra,511,664

Code:

$assoc_array = [];
if (($handle = fopen("csv.csv", "r")) !== false) {                 // open for reading
	if (($data = fgetcsv($handle, 1000, ",")) !== false) {         // extract header data
		$keys = $data;                                             // save as keys
	}
	while (($data = fgetcsv($handle, 1000, ",")) !== false) {      // loop remaining rows of data
		$assoc_array[] = array_combine($keys, $data);              // push associative subarrays
	}
	fclose($handle);                                               // close when done
}
echo "<pre>";
	var_export($assoc_array);                                      // print to screen
echo "</pre>";

Output:

array (
  0 => 
  array (
    'Brand' => 'Honda',
    'Model' => 'Civic',
    'Part' => '123',
    'Test' => '244',
  ),
  1 => 
  array (
    'Brand' => 'Honda',
    'Model' => 'Civic',
    'Part' => '135',
    'Test' => '434',
  ),
  2 => 
  array (
    'Brand' => 'Toyota',
    'Model' => 'Supra',
    'Part' => '511',
    'Test' => '664',
  ),
)

Resource: http://php.net/manual/en/function.fgetcsv.php

Here is a solutions that will work by specifying a local file or URL. You can also switch the association on and off. Hopefully this helps.

class CSVData{
	public $file;
	public $data;
	public $fp;
	public $caption=true;
	public function CSVData($file=''){
		if ($file!='') getData($file);
	}
	function getData($file){
		if (strpos($file, 'tp://')!==false){
			copy ($file, '/tmp/csvdata.csv');
			if ($this->fp=fopen('/tmp/csvdata.csv', 'r')!==FALSE){
				$this->readCSV();
				unlink('tmp/csvdata.csv');
			}
		} else {
			$this->fp=fopen($file, 'r');
			$this->readCSV();
		}
		fclose($this->fp);
	}
	private function readCSV(){
		if ($this->caption==true){
			if (($captions=fgetcsv($this->fp, 1000, ","))==false) return false;
		}
		$row=0;
		while (($data = fgetcsv($this->fp, 1000, ",")) !== FALSE) {
			for ($c=0; $c < count($data); $c++) {
				$this->data[$row][$c]=$data[$c];
				if ($this->caption==true){
					$this->data[$row][$captions[$c]]=$data[$c];
				}
			}
			$row++;
		}
	}
}

Try this usage:

$o=new CSVData();
$o->getData('/home/site/datafile.csv');
$data=$o->data;
print_r($data);

Here is my solution, similar to others stated but uses a while loop with fgetcsv, and uses a counter and array_combine to set the first row as the keys.

    $rownum = 0;
    while (($row = fgetcsv($openedFile, 1000, ',')) !== FALSE) {
        if ($rownum > 0) {
            $row = array_combine($importarray[0], $row);
        }
        array_push($importarray, $row);
        $rownum++;
    }
    array_shift($importarray);