如何使用key = value将文本列表转换为PHP关联数组？

Question

I have a list in a text file:

 Alabama    
 Alaska     
 Alberta    
 ...

and I would like to have a PHP array like that :

 array('Alabama' => 'Alabama', 'Alaska' => 'Alaska', ...)

How could I have this array ? (I am a beginner in PHP and in computing in general). Thanks a lot

Answer 1

You can use file() to read the entire file to an array, and use array_combine() to assign the array keys.

$arr = file('file.txt', FILE_SKIP_EMPTY_LINES | FILE_IGNORE_NEW_LINES);
$arr = array_combine($arr, $arr);

Answer 2

// read the file as an array of lines
$lines = file('./myFile.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

// fill the array
$arr = array();
foreach($lines as $line) {
    $arr[$line] = $line;
}

Answer 3

You could actually read a file into an array.

$states=require('path/to/states.php');

then in the states.php file

return array(
   'Alabama' => 'Alabama',
   'Alaska' => 'Alaska'
   // and so on.
);

You would have to format your list, but that should be pretty easy using a text editor with regex.