<?php
return function () {
if (isset($_GET['id'])) {
list($id, $ext) = explode('.', $_GET['id']);
$color_bg = $_GET['page'];
} else {
$parts = explode('/', substr($_SERVER['REQUEST_URI'], strlen('/dynamic/placeholder/')));
list($id, $ext) = explode('.', $parts[0]);
$color_bg = $parts[1];
}
list($w, $h) = explode('x', $id);
$w = (int) $w ?: 100;
$h = (int) $h ?: 100;
$params['color_bg'] = $color_bg ? preg_replace('[^a-z0-9]', '', $color_bg) : '';
require_once YF_PATH . 'share/functions/yf_placeholder_img.php';
echo yf_placeholder_img($w, $h, $params);
return true;
// Means success
};
/**
* Helper to output placeholder image, by default output is data/image
*/
function placeholder_img($extra = [])
{
if (!is_array($extra)) {
$extra = [];
}
$w = (int) $extra['width'];
$h = (int) $extra['height'];
if ($extra['as_url']) {
$extra['src'] = url('/dynamic/placeholder/' . $w . 'x' . $h);
} else {
require_once YF_PATH . 'share/functions/yf_placeholder_img.php';
$img_data = yf_placeholder_img($w, $h, ['no_out' => true] + (array) $extra);
$extra['src'] = 'data:image/png;base64,' . base64_encode($img_data);
}
return '<img' . _attrs($extra, ['src', 'type', 'class', 'id']) . ' />';
}
