Adding new helpers

README.md

@@ -1 +1,2 @@
-Simple PHP lib, tools & helpers, all GNU GPL'd.
+Simple PHP lib, tools & helpers, all GNU GPL'd.
+See also http://www.jonasjohn.de/snippets/php/

lib/class.http.php

@@ -42,6 +42,9 @@ public static function GetRealIpAddr()
     }
 
     /**
+     * Force Download 
+     *
+     * @author Alessio Delmonti
      * @param $file - path to file
      */
     public static function ForceDownload($file)

lib/class.space.php

@@ -40,10 +40,56 @@ public static function Distance($latA, $lonA, $latB, $lonB)
 
         // do trigonometry magic
         $d =
-        sin($dLat/2) * sin($dLat/2) +
-        cos($latA) * cos($latB) * sin($dLon/2) *sin($dLon/2);
+            sin($dLat/2) * sin($dLat/2) +
+            cos($latA) * cos($latB) * sin($dLon/2) *sin($dLon/2);
         $d = 2 * asin(sqrt($d));
         return $d * 6371;
     }
-
-}
+
+    /**
+     * Calculate the distance from a point A to a point B, using latitudes and longitudes.
+     * The function can return the distance in miles, kilometers, or nautical miles
+     *
+     * @author zipcodeworld   
+     * @example echo distance(32.9697, -96.80322, 29.46786, -98.53506, "k")." kilometers";
+     */
+    public static function KmDistance($lat1, $lon1, $lat2, $lon2, $unit = 'k') 
+    { 
+
+        $theta = $lon1 - $lon2;
+        $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
+        $dist = acos($dist);
+        $dist = rad2deg($dist);
+        $miles = $dist * 60 * 1.1515;
+        $unit = strtoupper($unit);
+
+        if ($unit == "K") {
+            return ($miles * 1.609344);
+        } else if ($unit == "N") {
+            return ($miles * 0.8684);
+        } else {
+            return $miles;
+        }
+    }
+
+    /**
+     * Geocoding, from address to coordinates lat long
+     *
+     * @author snipplr.com
+     * @param string $address, postal address
+     * @return array coords
+     */
+    public static function getLatLong($address)
+    {
+        if (!is_string($address))die("All Addresses must be passed as a string");
+        $_url = sprintf('http://maps.google.com/maps?output=js&q=%s',rawurlencode($address));
+        $_result = false;
+        if($_result = file_get_contents($_url)) 
+        {
+            if(strpos($_result,'errortips') > 1 || strpos($_result,'Did you mean:') !== false) return false;
+            preg_match('!center:\s*{lat:\s*(-?\d+\.\d+),lng:\s*(-?\d+\.\d+)}!U', $_result, $_match);
+            $_coords['lat'] = $_match[1];
+            $_coords['long'] = $_match[2];
+        }
+        return $_coords;
+    }

lib/class.strings.php

@@ -86,7 +86,7 @@ public static function Lcwords($string)
      * @return unsmartquoted
      * @see http://shiflett.org/blog/2005/oct/convert-smart-quotes-with-php
      */
-    protected function convert_smart_quotes($string)
+    public static function ConvertSmartQuotes($string)
     {
         $search = array(chr(145),
                 chr(146),
@@ -102,4 +102,42 @@ protected function convert_smart_quotes($string)
 
         return str_replace($search, $replace, $string);
     }
+
+    /**
+     * Get the text between $start and $end
+     *
+     * @author jonasjohn.de
+     * @param string $content (all content)
+     * @param string $start
+     * @param string $end
+     * @return string
+     */
+    public static function GetBetween($content, $start, $end)
+    {
+        $r = explode($start, $content);
+        if (isset($r[1])){
+            $r = explode($end, $r[1]);
+            return $r[0];
+        }
+        return '';
+    }
+
+
+    /**
+     * Return (bool) if $x contains $y
+     *
+     * @author jonasjohn.de
+     * @param string $str
+     * @param string $content
+     * @param bool $ignorecase
+     * @return boolean
+     */
+    public static function Contains($str, $content, $ignorecase = true)
+    {
+        if ($ignorecase){
+            $str = strtolower($str);
+            $content = strtolower($content);
+        }
+        return strpos($content,$str) ? true : false;
+    }
 }

lib/class.web2.php

@@ -34,6 +34,21 @@ public static function ShowGravatar($email, $size, $default,  $rating)
         height="'.$size.'px" />';
     }
 
+    /**
+     * Get website favicon from url
+     *
+     * @author snipplr.com 
+     * @param string $url
+     * @return string favicon url
+     */
+    public static function GetFavicon($url)
+{
+  $url = str_replace("http://",'',$url);
+  //TODO : regex that removes the last part of the url and detects errors
+  return "http://www.google.com/s2/favicons?domain=".$url;
+
+
+
     /**
      * Takes a string and makes it SEO and URL friendly
      *