navbar.php

<?php

function generateFilter() {
    $menu = array(
        '+Contrast'  => array('text'=>'+ contraste',   'url'=>'?filter=1'),
        '-Contrast'  => array('text'=>'- contraste',   'url'=>'?filter=2'),
        '+Brightness'=> array('text'=>'+ luminosité',  'url'=>'?filter=3'),
        '-Brightness'=> array('text'=>'- luminosité',  'url'=>'?filter=4'),
        'Sepia'      => array('text'=>'Sepia',         'url'=>'?filter=5'),
        'Grayscale'  => array('text'=>'Gris',          'url'=>'?filter=6'),
        'Gauss'      => array('text'=>'Gauss',         'url'=>'?filter=7'),
        'Edge'       => array('text'=>'Contours',      'url'=>'?filter=8'),
        'Sharpen'    => array('text'=>'Accentuer',     'url'=>'?filter=9'),
        'Pixelate'   => array('text'=>'Pixeliser',     'url'=>'?filter=10'),
        'Invert'     => array('text'=>'Negatif',       'url'=>'?filter=11'),
        'DoubleFlip' => array('text'=>'Double flip',   'url'=>'?filter=12')
    );
    $html = "<nav style=\"text-align:center\">\n";
    foreach($menu as $item) {
        $html .= "<a href='{$item['url']}'>{$item['text']}</a>\n";
    }
    $html .= "</nav>\n";
    return $html;
}