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SWFObject for PHP

A simple PHP class for embedding Flash objects statically into your pages.

Static embedding has several advantages over the JavaScript injection technique:

  • Works when JavaScript is unavailable
  • Is more robust; unreliance on JavaScript means if an earlier script error halts the interpreter, the SWFObject doesn’t die as well
  • Search engines can access statically embedded Flash content (text and links) more effectively
  • Static embedding makes Flash possible in RSS feeds

I also like the way this method avoids the mess of printing out client script variables, when feeding in from a server-side data source for example.

As you can see it’s fairly simple, but gives you a lot of control over what parameters and attributes are applied. It generates the same ‘flash satay’ as the SWFObject 2.0 static publishing method.

class FlashObject {
   
   public $attributes = array();
   public $params = array();
   public $variables = array();
   public $path;
   public $width;
   public $height;
   public $id;
   public static $default_alt_content = '<a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" /></a>';
     
   function __construct ($path = '#', $width = 100, $height = 100, $alt_content = '', $id = '') {
      $this->path = $path;
      $this->width = $width;
      $this->height = $height; 
      $this->alt_content = !empty($alt_content) ? $alt_content : $this->default_alt_content; 
      $this->id = !empty($id) ? ' id="' . $id . '"' : '';
   }
   
   function setAltContent ($str) {   
      $this->alt_content = $str;
   }   
   function setVariables ($arr) {
      $this->variables = $arr;
   }
   function setParams ($arr) {
      $this->params = $arr;
   }
   function setAttributes ($arr) {
      $this->attributes = $arr;
   }
   function setId ($id) {
      $this->id = $id;
   }
   
   function get () {
      $attributes = '';
      $params = '';
      $variables = array();
      foreach ($this->attributes as $key=>$val) {
         if ($key !== 'id') { $attributes .= ' ' . $key . '=' . '"' . $val . '"'; }
      }
      foreach ($this->params as $key=>$val) {
         $params .= "<param name=\"{$key}\" value=\"{$val}\" />";   
      }
      foreach ($this->variables as $key=>$val) {
         $variables[] = $key . '=' . urlencode($val);
      }
      if ( count($variables) ) {
         $params .= "<param name=\"flashvars\" value=\"" . implode('&', $variables) . "\" />";
      }
      $str = "<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" width=\"{$this->width}\" height=\"{$this->height}\"{$this->id}{$attributes}>";
      $str .= "<param name=\"movie\" value=\"{$this->path}\" />";
      $str .= $params;
      $str .= '<!--[if !IE]>-->';
      $str .= "<object type=\"application/x-shockwave-flash\" data=\"{$this->path}\" width=\"{$this->width}\" height=\"{$this->height}\"{$attributes}>";
      $str .= $params;
      $str .= '<!--<![endif]-->';
      $str .= $this->alt_content;
      $str .= '<!--[if !IE]>-->';
      $str .= '</object>';
      $str .= '<!--<![endif]-->';      
      $str .= '</object>';            
      return $str;
   }
   
   function render () {
      echo $this->get();
   }
}

Example use:

$swiff = new FlashObject('path/to/file.swf', 200, 300, 'Alternative Content here', 'Myid'); 

$swiff->setVariables(array( 
    'hello' => 'world', 
    'myVar' => '200'  
   )); 


$swiff->setParams(array( 
    'wmode' => 'transparent'  
   )); 

// Print out directly
$swiff->render();  

// Or assign for later use
$mySwiff = $swiff->get();

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