<?php
//echo getcwd();
//mkdir("aaaaaa");
$n ="/abc";
echo substr($n,0,1);
echo "<img src = 'Users/abc/un/kate.jpg' alt='Partenaires'>";
// echo "<img src = 'Users\abc\un\kate.jpg' alt='Partenaires'>";
// echo "<img src = 'kate.jpg' alt='Partenaires'>";
// echo "<img src = 'C:/wamp/www/DEBUG_02_10_2015/Users/abc/un/kate.jpg' alt='Partenaires'>";
Du genre :
<a href="#" OnClick="document.getElementById('monchp').value ='';">Ouaip</a>
Puis :
<input type="submit" value="1234" id="monchp" />
?>