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Save to mysql and show text while typing onkeypress

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The idea is simple. A key you press (a letter) appears in updated page:


<input id='k'></input>
<script type="text/javascript">
$db=new PDO('mysql:host=localhost;dbname=test;charset=utf8','$us','$ps');
$db->exec("UPDATE TXT SET texts=k.value");
$rl=$db->query("SELECT texts FROM TXT");

The intention is to have text on the screen via print_r. I successfully used it in another php to exchange information with MySQL and users screen (worked).
Here - the more you type and the more k.value is the more text will be on screen (just from server).

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