MODx: img tag on steroids... :)

gistfile1.php

<?php
/*

   img Snippet for MODx Revo   
   This snippet will either return a complete image tag
   or return a comment including debugging information.
   
   Author: info@pepebe.de
   Version: 1.0
   
   The main reason I created this snippets is because I wanted to prevent
   phpthumbof from sending ugly error codes to the browser.
   Automatically adding height and width to all image comes as a bonus.
   
   Usage:
   ------
   Snippet call:
   [[img?
      &input=`[[+image]]`
      &options=`w=100&f=jpg&q=75`
      &alt=`Alt`
      &title=`Title`
      &toPlaceholder=`img`
   ]]
   
   Result:
   -------
   <img src="/assets/components/phpthumbof/cache/aad4c1a7ba318effbd93206d1c52200c.e06007eb554a08ff50d1b024f130183b.jpg"
      height="74"
      width="100"
      alt="Alternative text"
      title="Image title"
   />
   
   Parameters:
   -----------
   &input=``         image path
   &options=``       phpthumbof options (if empty, the snipppet will simply return the image src)
   &alt=``           an alternative text
   &title=``         a title tag for more info
   &toPlaceholder=`` output to a placeholder

*/

/* Functions */
if(!function_exists('outputArray')) {
   function outputArray($myArray) {
      if( is_array($myArray) )
      {
         foreach( $myArray as $key => $value )
         {
            $items .= $key.": ".$value."\n";
         }
         return $items;   
      }
      else
      {
         return;
      }

   }
}
/* Importent variables */

   $scriptVariables['base_path'] = $modx->config['base_path'];

/* Let's go... */

   if( file_exists( $scriptVariables['base_path'].$input ) )
   {
      if( !empty( $scriptProperties['options'] ) && 1 == 1 )
      {
         $image = $modx->runSnippet(
            "phpthumbof" ,
            array(
               "input"   => $scriptProperties['input'] ,
               "options" => $scriptProperties['options']
            )
         );
      }
      else
      {
         $image = $scriptProperties['input'];
      }

      list($width, $height, $type, $attr) = getimagesize($modx->config['base_path'].$image);

      $alt     = !empty($alt)   ? " alt='".$alt."'"     : "";
      $title   = !empty($title) ? " title='".$title."'" : "";
   
      $img     = "<img src='".$image."' ".$attr.$alt.$title." />";

      if( !empty($toPlaceholder) )
      {
         $modx->setPlaceholder($toPlaceholder,$img);
         return;
      }
      else
      {
         return $img;
      }
      
   }
   
   else
   {
      $msg  = "";
      
      // There is no general way how browsers handle broken images.
      // As a fix we don't display the image as a whole and display
      // the alternative Text instead
      $msg .= "<div class='brokenImage'>".$alt."</div>"."\n";
      $msg .= "<!-- "."\n";
      $msg .= "Error: ".$input." does not exist"."\n";
      $msg .= "----------------------------------"."\n";
      $msg .= "scriptProperties"."\n";
      $msg .= "----------------------------------"."\n";
      $msg .= outputArray($scriptProperties);
      $msg .= "----------------------------------"."\n";
      $msg .= "scriptVariables"."\n";
      $msg .= "----------------------------------"."\n";
      $msg .= outputArray($scriptVariables);
      $msg .= " -->"."\n";
      
      if( !empty($toPlaceholder) )
      {
         $modx->setPlaceholder($toPlaceholder,$msg);
         return;
      }
      else
      {
         return $msg; 
      }
   }

2do: Check if phpthumbof is installed...