在PHP中从XML中逐行保存数据到文件

Question

I am getting data from another website, removing what I don't need. And would like to store the information I gathered to a file. I have done everything I need but my file writes array every line

Here is the code I am working on:

    $xml = simplexml_load_file('website.xml');

    $item_array = array();
    $item_array[0] = 0;
    $item_array[1] = 2;
    $item_array[2] = 4;
    $item_array[3] = 6;
    $item_array[4] = 8;
    $item_array[5] = 9;
    $item_array[6] = 10;
    $item_array[7] = 11;
    $item_array[8] = 12;
    $item_array[9] = 13;
    $item_array[10] = 14;
    $item_array[11] = 15;
    $item_array[12] = 16;

    $patterns = array();
    $patterns[0] = '/Sum It Up/';
    $patterns[1] = '/=/';
    $patterns[2] = '/Powerball/';
    $patterns[3] = '/MegaBall/';
    $patterns[4] = '/Megaplier/';
    $patterns[5] = '/Bonus Ball/';

    $print = array();
    foreach($item_array as $news){
    echo $xml->channel->item[$news]->title.'<br>';
    $new_string = $xml->channel->item[$news]->description;
    $new_string = preg_replace("/[^A-Za-z0-9 ]/", '', $new_string);
    $new_string = preg_replace($patterns, '', $new_string);
    echo $new_string.'<br>';
    $print[] = array($new_string);
    }

    $filename = 'numbers.txt';
    $handle = fopen($filename, 'w');
    @$output = implode("
", $print);
    fwrite($handle, $output);
    fclose($handle);

I just want to keep the numbers as array and write the numbers to a file in line by line.

Answer 1

From the discussion below, the problem solved finally. Here should use $print[] = $new_string to make sure $print is one level array. Then you can using var_export or custom style to print it line by line. $print[] means to add an item into this array, if the item is an array already, $print will be an 2 level array.

-----Old Answer-----

Using serialize() function, it can serialize an array to string, and then you can write it to a file. Using unserialize() can make the string back to array.