从文件读取到关联数组

Question

I have to create a page, where the user is able to search a suburb and the page will print the postcode of that suburb.

I am having a little difficulty with putting the data from the .txt document into the variables for the associative array.

Thanks for your help.

This is what I have so far.

    <?php

    $file = "postcode.txt";
    $handle = fopen($file, 'r');
    $postcodearray = file($file);

    $suburb = explode(",", );
    $postcodearray[$suburb] = $postcode;

    fclose($handle)
    ?>

and this is the format of the .txt document...

3000,MELBOURNE  
3001,MELBOURNE  
3002,EAST MELBOURNE  
3003,WEST MELBOURNE  

etc.

Answer 1

I prefer file_get_contents when working with files

<?php

$content = file_get_contents('postcode.txt');

$rows = explode("
", $content);

$data = [];
foreach ($rows as $row) {
    $columns = explode(',', $row);

    $data[$columns[0]] = $columns[1];
}