phpwcms Support Forum

Code: Select all

<?php 

// print a random image.  Don't forget ending slash!
// setting $type to 'all' will return all images.
print getRandomImage('../images/'); 

function getRandomImage($dir,$type='random')
{ 
global $errors,$seed; 

  if (is_dir($dir)) {  

  $fd = opendir($dir);  
  $images = array(); 

      while (($part = @readdir($fd)) == true) {  

          if ( eregi("(gif|jpg|png|jpeg)$",$part) ) {
              $images[] = $part; 
          } 
      } 

    // adding this in case you want to return the image array
    if ($type == 'all') return $images;

    if ($seed !== true) {
      mt_srand ((double) microtime() * 1000000);
      $seed = true;
    }
      
      $key = mt_rand (0,sizeof($images)-1); 

    return $dir . $images[$key]; 

  } else { 
      $errors[] = $dir.' is not a directory'; 
      return false; 
  } 
} 

?>

Code: Select all

#
#-------------------------------------------------------
# 					-=[ {RANDOM}-HACK ]=-
#-------------------------------------------------------
#	 4phpwcms: Release 1.1-RC4 27-08-2004
#-------------------------------------------------------
#	  request: www.phpwcms.de/forum/viewtopic.php?t=5605
#			 by: cyrano (tester+new ideas)
# suggestion: extends the RT {RANDOM}
#			 by: Neelix
#	  example: (generic) {RANDOM:[path]:[interval]}
#				  (live)		{RANDOM:picture/my_random_images:1440}
#								This shows your random images which you have placed in a subfolder
#								called "my_random_images" within the folder "picture" with an
#								intervall of 1440 min = 24 hours.
#
#						- [path] = search here for images
#							example:picture/sub
#						- [interval] - using the old value
#						- >0 = interval in minutes
#						- 0 = normal RT
#
# 	 history: v0.1 - stand alone - without core connection
#				 v0.2 - using core {random} with fixed interval
#						  (1time/day)
#				 v0.3 - extends interval in minutes
#-------------------------------------------------------
#
# extends the {RANDOM}-RT to the possibility to 
# create an RANDOM-Value only one times per interval -
# the random-image will now show the whole interval
#
#-------------------------------------------------------

#
#-----[ CREATE AN DB-TABLE ]----------------------------
#
# -!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!
# if you use an DB-Tableprefix (DB_PREPEND)
# => insert this before phpwcms_random
#	example: CREATE TABLE my_phpwcms_random (
# -!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!

CREATE TABLE phpwcms_random (
  rid bigint(20) unsigned NOT NULL default '0',
  datum datetime NOT NULL default '0000-00-00 00:00:00',
  PRIMARY KEY  (datum)
) TYPE=MyISAM COMMENT='save values for {RANDOM++}';

#
#-----[ BACKUP ]----------------------------------------
# Backup original file -->include/inc_front/front.func.inc.php
cp front.func.inc.php front.func.inc.php_backup

#
#-----[ OPEN ]------------------------------------------
#
include/inc_front/front.func.inc.php

#
#-----[ FIND ]------------------------------------------
#
$search[15]		= '/\{RANDOM:(.*?)\}/e';
$replace[15]	= 'get_random_image_tag("$1");';

#
#-----[ REPLACE WITH ]------
#
$search[15]		= '/\{RANDOM:(.*?):(\d+)\}/e';
$replace[15]	= 'get_random_image_tag("$1","$2");';

#
#-----[ FIND ]------------------------------------------
#
	function get_random_image_tag($path) {

#
#-----[ REPLACE WITH ]------
#
	function get_random_image_tag($path,$rand) {

#
#-----[ FIND ]------------------------------------------
#
	if(sizeof($imgArray)) $imageinfo = is_random_image($imgArray, $imgpath);

#
#-----[ REPLACE WITH ]------
#
	if(sizeof($imgArray)) $imageinfo = is_random_image($imgArray, $imgpath,0, $rand);

#
#-----[ FIND ]------------------------------------------
#
function get_random_image_tag($path,$rand) {
...
}

#
#-----[ AFTER, ADD ]------
#

   function getRandomID($iInterval=1440)
   {
	   global $db;
		$sQuery = 'SELECT rid FROM '.DB_PREPEND.'phpwcms_random WHERE (NOW()<DATE_ADD(datum, Interval '.$iInterval.' minute));';

      if (isset($db) && $db)
          $hResult = mysql_query($sQuery, $db);
      else
          $hResult = mysql_query($sQuery);
      $row=mysql_fetch_object($hResult);

      return ($row?$row->rid:-1); //0 can be an valid value! => negativ's are save
		
   } //fnc-end

   function saveRandomID($iRID)
   {
	   global $db;
		$sQuery1 = 'DELETE FROM '.DB_PREPEND.'phpwcms_random WHERE DATUM>0';
		$sQuery2 = 'INSERT INTO '.DB_PREPEND.'phpwcms_random(rid,datum) VALUES ('.$iRID.', NOW());';
		
      if (isset($db) && $db)
          $hResult = mysql_query($sQuery1, $db);
      else
          $hResult = mysql_query($sQuery1);
			 
      if (isset($db) && $db)
          $hResult = mysql_query($sQuery2, $db);
      else
          $hResult = mysql_query($sQuery2);
			 
      return $hResult; //ok .or. err
		
   } //fnc-end

#
#-----[ FIND ]------------------------------------------
#
function is_random_image($imgArray, $imagepath, $count=0) {
...
}

#
#-----[ REPLACE WITH ]------ (whole function)
#
function is_random_image($imgArray, $imagepath, $count=0, $rand=0) {

	$count++;
	$rid=-1;//init
	
	//$rand==1 => use the value in the DB
	if ($rand)
	{
		$rid = getRandomID($rand);
		$randval = $rid;
	}
	//if normal || new date: $rid is set to init
	//if extended we need an new id ...
	if ($rid<0)
	{
      mt_srand ((double) microtime() * 1000000); //this is the init/start-value for the mt_rand-algorithm: here "now"
		$randval = mt_rand( 0, sizeof( $imgArray ) - 1 );
		if ($rand) saveRandomID($randval); //... and save it
	}	

	$file = $imagepath.$imgArray[ $randval ];
	//gets -> better tests for image info
	$imageinfo = @getimagesize($file);
	//if $imageinfo is not true repeat function and count smaller count all images
	if(!$imageinfo) {
		if($count < sizeof($imgArray)) $imageinfo = is_random_image($imgArray, $imagepath, $count, $rand);
	} else {
		$imageinfo["imagename"] = $imgArray[ $randval ];
	}
	return $imageinfo;

} //fnc-end

Code: Select all

http://www.flashfilmmaker.com/thumbnail.php?im={RANDOM:image}

Code: Select all

<?php
/** ---------------------------------------------------------------------------
 *
 *       -=[ Extended {RANDOM} ]=-
 *
 * gently extented the CORE::{RANDOM}-RT to the possibility to
 * create an RANDOM-Value only one times per interval -
 * the random-image will now show the whole interval
 *
 * @4phpwcms 1.2.6DEV (and before?-  not testet yet!)
 * @see request www.phpwcms.de/forum/viewtopic.php?t=5605
 *         by cyrano (1st), pappnase (4frontend_render)
 * @author Neelix
 * @licence "THE BEER-WARE LICENSE" (Revision 42):
 *				Neelix wrote this file.	As long as you retain this notice you
 *				can do whatever you want with this stuff. If we meet some day, and you think
 *				this stuff is worth it, you can buy me a beer in return Neelix.
 * @version 0.4-DEV
 * @see CORE::front.func.inc.php for original {RANDOM}
 *
 * @example generic {XRANDOM:[path]:[interval]}
 *    - [path] = search here for images
 *    - [interval] - using the old value
 *       interval >0   => interval in minutes
 *       interval =0   => like the core RT - new image on every call
 * @example live    {XRANDOM:picture/my_random_images:1440}
 *    This shows your random images which you have placed in a subfolder
 *    called "my_random_images" within the folder "picture" with an
 *    intervall of 1440 min = 24 hours.
 *
 * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 *
 * Install:
 *
 * -----[ COPY ]-----------------------------------------
 * this file to your render folder 'phpwcms_template/inc_script/frontend_render/'
 *
 * -----[ SQL ]------------------------------------------
 *
 *  -!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!
 *  if you use an DB-Tableprefix (DB_PREPEND)
 *  => insert this before phpwcms_random
 *   example: CREATE TABLE my_phpwcms_random (
 * -!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!
 *
 * CREATE TABLE phpwcms_random (
 * rid bigint(20) unsigned NOT NULL default '0',
 * datum datetime NOT NULL default '0000-00-00 00:00:00',
 * PRIMARY KEY  (datum)
 * ) TYPE=MyISAM COMMENT='save values for {XRANDOM}';
 *
 * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 *
 *    history: v0.1 - stand alone - without core connection
 *             v0.2 - using core {random} with fixed interval
 *                    (1time/day)
 *             v0.3 - extends interval in minutes
 *             v0.4 - build 4 frontend_render, rename to XRANDOM
 * ----------------------------------------------------------------------------
 */

class ClExtRandom
{
	var $_imgArray;			/** @private Array[String] */
	var $_imgPath;				/** @private String */

  /**
   * Konstruktor:
	*/
	function ClExtRandom()
	{
		$this->_imgArray = array();
		$this->_imgPath = '';
	} //fnc-end

  /**
	* returns an random image (html-tag) from the give path
	*	- it looks for image of following type:
	*	- gif, jpg, jpeg, png
	*
	* @param String $path look here for images
	* @param Integer $rand interval in min
	* @return String html-img-tag
	* @access public
	*/
	function getRandomImageTag($path,$rand)
	{
		$this->_imgPath = str_replace('//', '/', PHPWCMS_ROOT.'/'.$path.'/');
		$imageinfo = false;

		if (is_dir($this->_imgPath))
		{
			$handle = opendir( $this->_imgPath );
			while($file = readdir( $handle ))
			{
   			if ( $file != "." && $file != ".." )
				{
					if ( preg_match('/(\.jpg|\.jpeg|\.gif|\.png)$/', strtolower($file)) )
						 $this->_imgArray[] = $file;
				}
			}
			closedir( $handle );
		}

		if (count($this->_imgArray)) $imageinfo = $this->_isRandomImage(0, $rand);

		return ($imageinfo ? '<img src="'.$path.'/'.$imageinfo["imagename"].'" '.$imageinfo[3].' border="0" alt="'.$imageinfo["imagename"].'" />' : '');

	} //fnc-end

  /**
	* get the last id from DB
	* @param Integer $iInterval interval in min, optional default=1440
	* @return Integer get the last value .or. -1 if nothing found
	* @access privat
	*/
   function _getRandomID($iInterval=1440)
   {
		$sQuery = 'SELECT rid FROM '.DB_PREPEND.'phpwcms_random WHERE (NOW()<DATE_ADD(datum, Interval '.$iInterval.' minute));';

      $hResult = mysql_query($sQuery, $GLOBALS['db']);
      $row = mysql_fetch_object($hResult);

      return ($row?$row->rid:-1); //0 can be an valid value! => negativ's are save

   } //fnc-end

  /**
	* save the new id in the DB
	* - update is also possible, if you get an easy PK for the table; but now I get this way...
	* @param Integer $iRID new ID
	* @return Boolean sucessful or error
	* @access privat
	*/
   function _saveRandomID($iRID)
   {
		$sQuery1 = 'DELETE FROM '.DB_PREPEND.'phpwcms_random WHERE DATUM>0';
		$sQuery2 = 'INSERT INTO '.DB_PREPEND.'phpwcms_random(rid,datum) VALUES ('.$iRID.', NOW());';

      $hResult = mysql_query($sQuery1, $GLOBALS['db']);
	   $hResult = mysql_query($sQuery2, $GLOBALS['db']);

      return $hResult; //ok .or. err

   } //fnc-end

  /**
	* check 4 valid image
	* @param Integer $count Counter , optional default=0 (4error: call again max size of _imgArray)
	* @param Integer $rand Last Random ID, optional default=0
	* @return Array with image infos
	* @see PHP::getimagesize()
	* @access privat
	*/
	function _isRandomImage($count=0, $rand=0)
	{

		$count++;
		$rid=-1;			//init
		$randval=0;		//-=-

		//$rand==1 => use the value in the DB
		if ($rand)
		{
			$rid = $this->_getRandomID($rand);
			$randval = $rid;
		}
		//if normal || new date: $rid is set to init
		//if extended we need an new id ...
		if ($rid<0)
		{
      	mt_srand ((double) microtime() * 1000000); //this is the init/start-value for the mt_rand-algorithm: here "now"
			$randval = mt_rand( 0, count($this->_imgArray) - 1 );
			if ($rand) $this->_saveRandomID($randval); //... and save it
		}

		$file = $this->_imgPath . $this->_imgArray[ $randval ];

		//gets -> better tests for image info
		$imageinfo = @getimagesize($file);
		//if $imageinfo is not true repeat function and count smaller count all images
		if(!$imageinfo)
		{
			if($count < count($this->_imgArray)) $imageinfo = $this->_isRandomImage($count, $rand);
		}
		else
		{
			$imageinfo["imagename"] = $this->_imgArray[ $randval ];
		}
		return $imageinfo;

	} //fnc-end

};//end-class



//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//anybody out there? - the same old story, but here in CLASS-manner (I hope it's possible in older PHPs to...)
if (!strpos($content['all'],'{XRANDOM:')===false)
{
	$myRand = new ClExtRandom();
	$content['all'] = preg_replace('/\{XRANDOM:(.*?):(\d+)\}/e', '$myRand->getRandomImageTag("$1","$2")', $content['all']);
}

?>