将 PHP 数组输出为 PHP 代码，格式化

Question

I have a file with a HUGE array that goes multiple dimensions deep and looks a bit like this.

$array = array(
   'all_tools' => array(
       'title' => 'Tools',
       'help' => 'Help with tools'
   ),
   'addcode' => array(
       'title' => 'Add Code',
       'help' => 'Add code help'
   ),
   'editcode' => array(
       'title' => 'Edit Code',
       'help' => 'Edit code help'
   )
);

Apparently this is not readable enough and I've been asked to convert this array to the following format.

$array['all_tools']['title'] = 'Tools';
$array['all_tools']['help'] = 'Help with tools';

$array['addcode']['title'] = 'Add Code';
$array['addcode']['help'] = 'Add code help';

$array['editcode']['title'] = 'Edit Code';
$array['editcode']['help'] = 'Edit code help';

It is the same array, but I need to structure it like this. This will take hours to do by hand because this file is enormous. Does anyone know of a PHP function that will print the contents of a multi-dimensional array the way this way?

Edit: I would like a little more information. The array I am working on has some variation in how many arrays may be nested in each key. I need a solution that can go as many levels deep as necessary and dynamically knows when to stop when it bumps into a string rather than an array.

Answer 1

This will spit out a text file you can copy and paste into your code:

foreach($array as $first_level_key => $value){
    foreach($value as $sub_key => $sub_value){
        echo "\$array['".$first_level_key."']['".$sub_key."'] = '$sub_value'; \n";
    }
}

Answer 2

from the php.net manual for var_export

<?php
function recursive_print ($varname, $varval) {
  if (! is_array($varval)):
    print $varname . ' = ' . var_export($varval, true) . ";<br>\n";
  else:
    print $varname . " = array();<br>\n";
    foreach ($varval as $key => $val):
      recursive_print ($varname . "[" . var_export($key, true) . "]", $val);
    endforeach;
  endif;
}
?>

If your output is to a text file and not an HTML page, remove the <br>s.

Answer 3

There are various ways you can output the PHP variable as directly consumable code.

1. var_export Just like var_dump / print_r , you can use var_export to just output the array as consumable(parsable) php code.

2. json_encode you can output the array to JSON encoded format, which will be consumable by not only the PHP language, but also most of the other language since JSON is a language agnostic format.

3. serialize + unserialize

4. Use your own function/method to generate the output php string.