ejessyp / flowerflow

src/function.php

<?php
/**
 * Get value from GET variable or return default value.
 *
 * @param string $key     to look for
 * @param mixed  $default value to set if key does not exists
 *
 * @return mixed value from GET or the default value
 */
function getGet($key, $default = null)
{
    return isset($_GET[$key])
        ? $_GET[$key]
        : $default;
}


/**
 * Get value from POST variable or return default value.
 *
 * @param mixed $key     to look for, or value array
 * @param mixed $default value to set if key does not exists
 *
 * @return mixed value from POST or the default value
 */
function getPost($key, $default = null)
{
    if (is_array($key)) {
        $key = array_flip($key);
        return array_replace($key, array_intersect_key($_POST, $key));
    }

    return isset($_POST[$key])
        ? $_POST[$key]
        : $default;
}


/**
 * Function to create links for sorting.
 *
 * @param string $column the name of the database column to sort by
 * @param string $route  prepend this to the anchor href
 *
 * @return string with links to order by column.
 */
function orderby($column, $route)
{
    return <<<EOD
<span class="orderby">
<a href="{$route}orderby={$column}&order=asc">&uarr;</a>
<a href="{$route}orderby={$column}&order=desc">&darr;</a>
</span>
EOD;
}



/**
 * Function to create links for sorting and keeping the original querystring.
 *
 * @param string $column the name of the database column to sort by
 * @param string $route  prepend this to the anchor href
 *
 * @return string with links to order by column.
 */
function orderby2($column, $route)
{
    $asc = mergeQueryString(["orderby" => $column, "order" => "asc"], $route);
    $desc = mergeQueryString(["orderby" => $column, "order" => "desc"], $route);

    return <<<EOD
<span class="orderby">
<a href="$asc">&uarr;</a>
<a href="$desc">&darr;</a>
</span>
EOD;
}



/**
 * Use current querystring as base, extract it to an array, merge it
 * with incoming $options and recreate the querystring using the
 * resulting array.
 *
 * @param array  $options to merge into exitins querystring
 * @param string $prepend to the resulting query string
 *
 * @return string as an url with the updated query string.
 */
function mergeQueryString($options, $prepend = "?")
{
    // Parse querystring into array
    $query = [];
    parse_str($_SERVER["QUERY_STRING"], $query);

    // Merge query string with new options
    $query = array_merge($query, $options);

    // Build and return the modified querystring as url
    return $prepend . http_build_query($query);
}


/**
 * Check if key is set in POST.
 *
 * @param mixed $key     to look for
 *
 * @return boolean true if key is set, otherwise false
 */
function hasKeyPost($key)
{
    return array_key_exists($key, $_POST);
}



/**
 * Sanitize value for output in view.
 *
 * @param string $value to sanitize
 *
 * @return string beeing sanitized
 */
function esc($value)
{
    return htmlentities($value);
}



/**
 * Create a slug of a string, to be used as url.
 *
 * @param string $str the string to format as slug.
 *
 * @return str the formatted slug.
 */
function slugify($str)
{
    $str = mb_strtolower(trim($str));
    $str = str_replace(['å','ä'], 'a', $str);
    $str = str_replace('ö', 'o', $str);
    $str = preg_replace('/[^a-z0-9-]/', '-', $str);
    $str = trim(preg_replace('/-+/', '-', $str), '-');
    return $str;
}

/**
 * Get either a Gravatar URL or complete image tag for a specified email address.
 *
 * @param string $email The email address
 * @param string $sportSize in pixels, defaults to 80px [ 1 - 2048 ]
 * @param string $d Default imageset to use [ 404 | mp | identicon | monsterid | wavatar ]
 * @param string $r Maximum rating (inclusive) [ g | pg | r | x ]
 * @param boole $img True to return a complete IMG tag False for just the URL

The type boole was not found. Maybe you did not declare it correctly or list all dependencies?

 * @param array $atts Optional, additional key/value attributes to include in the IMG tag
 * @return String containing either just a URL or a complete image tag
 * @source https://gravatar.com/site/implement/images/php/
 */
function get_gravatar($email, $sport = 80, $dport = 'mp', $rport = 'g', $img = false, $atts = array())
{
    $url = 'https://www.gravatar.com/avatar/';
    $url .= md5(strtolower(trim($email)));
    $url .= "?s=$sport&d=$dport&r=$rport";
    if ($img) {
        $url = '<img src="' . $url . '"';
        foreach ($atts as $key => $val) {
            $url .= ' ' . $key . '="' . $val . '"';
            $url .= ' />';
        }
    }
    return $url;
}