在PHP中解析多个数组

Question

I have a CSV file that I am parsing using PHP. However, the output looks as follows:

Array(
    [0] => URL
    [1] => Value
    [2] => Author
)

Array(
    [0] => URL
    [1] => Value
    [2] => Author
)

Array(
    [0] => URL
    [1] => Value
    [2] => Author
)

And so on...

How can I parse each of these individually and/or display only one at random? I've tried using array_values, but that seems to output all arrays, not just one. Any suggestions? Feel free to let me know if there is anything else I can provide. Thanks guys.

Edit: Added some code if it helps - pretty basic.

//CSV to array and parse
function parseCSV() {
    $file = fopen('feeds/data.csv', 'r');
    while (($line = fgetcsv($file)) !== FALSE) {
        //$line is an array of the csv elements
        $arr = $line;

        $url = array_values($arr)[2];
        $author = array_values($arr)[1];

        print_r($arr);
    }

    fclose($file);      
}//end

Answer 1

<?php

Class CsvRandomLine
{
    private $line_count=0;
    private $random_element;
    private $handle;
    private $csv_arr;

    function __construct($file='feeds/data.csv')   
    {
        $this->handle = fopen($file, "r");

         $this->sort_one_element();
    }


    //CSV to array and parse
    function randomLine() 
    {
        $i = 0;

        // move pointer to the sorted line
        while($i < $this->random_element)
        {
          $line = fgets($this->handle);
          $i++;
        }        

        $line = fgetcsv($this->handle);


        //add element to $csv_arr with $url and  $author
        $this->csv_arr=array(
                            "url"    =>  $line[2],
                            "author" =>  $line[1]
                        );


    }//end


    function get($property)
    {
        return $this->csv_arr[$property];
    }


    function sort_one_element()
    {
        if($this->line_count!=0)
        {
            $max = $this->line_count;
        }
        else
        {

            $max = $this->countLines();
        }

        $max--;

        $n = rand( 0 , $max );    

        //echo $n;

        $this->random_element = $n;

        rewind($this->handle);        

        $this->randomLine();    


    }


    function countLines()
    {
        $linecount=0;
        while( fgets($this->handle) !== FALSE )
        {
          $linecount++;
        }

        $this->line_count=$linecount;

        return $linecount;            
    }


    function __destruct()
    {
        fclose($this->handle);
    }

}    


// How to use the class:


$csv_r = new CsvRandomLine();
//Construct automatic sort the first element

echo $csv_r->get("author");
echo '<br>';
echo $csv_r->get("url");

echo '<hr>';

//Sorting another element
$csv_r->sort_one_element();

echo $csv_r->get("author");
echo '<br>';
echo $csv_r->get("url");