* ini-get.xml: add the literal tag to the pdo.dsn.* family of options
* ini-get-all.xml: add the literal tag
* ini-get.xml: modify the code example and the output
* Update ini-get.xml: fix the size in bytes
* ini-get.xml: fix converting k, m, g into bytes
We could use merely this insted the `return_bytes` fn:
```
<?php
/*
Our php.ini contains the following settings:
display_errors = On
register_globals = Off
post_max_size = 8M
*/
echo 'display_errors = ' . ini_get('display_errors') . "\n";
echo 'register_globals = ' . (int) ini_get('register_globals') . "\n";
echo 'post_max_size = ' . ini_get('post_max_size') . "\n";
echo 'post_max_size + 1 = ' . (rtrim(ini_get('post_max_size'), 'KMG') + 1) . "\n";
echo 'post_max_size in bytes = ' . ini_parse_quantity(ini_get('post_max_size'));
```
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