Question

I would like to convert: "controllers[page[title_new]]" to "controllers[page][title_new]". So I can fill a form with input fields like:

<?php $name = 'controllers[page[title_new]]' ?>

<input type='text' name='<?= $name; ?>'>

After you submit the form you get $_POST =

array(controllers => array(page => array(title_new = '')));

Now to display this I would like:

<input type='text' name='<?= $name; ?>' value='<?= $_POST[CONVERT($name)]; ?>'>

So is there such a CONVERT built into PHP? Or how could I do it the best way?

*Please note I left out all validation, escaping, htmlentities, etc. out for readability.

Answer 1

Well, the following works:

$name = 'controllers[page[title_new]]';
$name = str_replace(array('[', ']]'), array('][', ']'), $name);
// Gives: controllers][page][title_new]] -> controllers][page][title_new]

$name = preg_replace('/\]\[/','[', $name, 1);
// Gives: controllers[page][title_new]