如果你想通过头键引用获取csv行

function get_csv_row($path=null,$key=null,$search=null){
        if(empty($path) || empty($key)){
            return array();
        }

        $row_num =1;$search_row=array();
        if (($handle = fopen($path, "r")) !== FALSE) {
            while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
                
                if($row_num==1){
                    $header_csv = $data;
                    $row_num=2;
                    continue;
                }

                $row_data=array_combine($header_csv, $data);

                if(isset($row_data[$key]) && trim($row_data[$key]) == $search){
                    $search_row = $data;
                    break;
                }

                $row_num++;
            }
        }
        fclose($handle);
        return $search_row;
    }

要只得到一个产品，例如37，您可以使用if条件：

$row = 1;
if (($handle = fopen("test.csv"; "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
        $num = count($data);
        echo "<p> $num fields in line $row: <br /></p>\n";
        $row++;
        if ($data[0] == '37') {
            // do something with your row
        }
    }
    fclose($handle);
}

$data[0]是您的产品ID，$data[1]是您的desc，$data[2]是价格。