Magic Macros
Magic Macros are macro commands you can place in the banner HTML (or destination URL) for an ad to insert various attributes into the generated ad code.
Content
| Magic Macro | Description |
| {clickurl} | The OpenX click tracking URL for the delivered ad |
| {timestamp} | A decimal string based on the current timestamp (in seconds and microseconds since the UNIX epoch
e.g. 1185290310.72 |
| {random} | A 10 character alpha-numeric random string value
e.g. b616f31e72 |
| {logurl}* | The OpenX impression logging URL |
| {logurl_enc}* | As {logurl} but the logging URL is urlencoded
e.g. http%3A%2F%2F...%2Fdelivery%2Flg.php%3Fbannerid%3D... |
| {target} | The target value for the selected banner
e.g. _blank |
| {url_prefix} | The URI to the base of the OpenX delivery server |
| {bannerid} | The ID of the selected banner
e.g. 123 |
| {zoneid} | The ID of the selected zone
e.g. 456 |
| {source} | The value of "source=" as passed into the ad-request from the site tags
e.g. source=cat123/cat456... |
| {pageurl} | The URL of the page the ad was requested on (url encoded)
e.g. http%3A%2F%2Flocalhost%2Fmagic_macros%2Ftest.html |
| {referer} | The referer of the page the ad was requested on (url encoded)
e.g. http%3A%2F%2Flocalhost%2Fmagic_macros%2F |
| {width} | The width (in pixels) of the selected ad
e.g. 468 |
| {height} | The height (in pixels) of the selected ad
e.g. 60 |
| {clickurlparams} | The parameters which would be passed to the {clickurl}
e.g. 2__bannerid=X__zoneid=Y__source=cat123/cat456__cb=0d9139d879__maxdest= |
| {ANY_INPUT_VARIABLE} | Any value present in the php $_REQUEST array ($_GET/$_POST/$_COOKIE)
e.g. {OAID} -> $_COOKIE['OAID'] = 1fd819ffc7267757ba681ff5daa3007e |
If any of the magic macros are present in the HTML, but the value cannot be found, then the replaced value depends on the type of macro:
- For core macros ending in id - The value zero is used
- For other core macros - An empty string is used
- For "ANY_INPUT_VARIABLE" macros - The macro string is left unchanged in the HTML
*NOTE: If either {logurl} or {logurl_enc} are detected in an HTML ad, OpenX will not log an impression, but will pass the logging URL on to a 3rd party and rely on them to call-back using the logurl provided.
URL Macros
The {clickurl} Macro
By inserting the {clickurl} macro into the banner HTML for an ad stored on a third party server, OpenX can track clicks on that ad.
More information: The ThirdPartyClickTracking white paper describes how to implement this feature.
When the ad is clicked, OpenX substitutes the click tracking URL for the macro, for example http://.../delivery/ck.php?oaparams=2__bannerid=.... The browser is redirected to this URL where OpenX counts the click and then forwards the browser to the ad URL.
{clickurlparams}
The {clickurlparams} are the parameters that are passed to the {clickurl} address for third party click tracking. The parameters are:
- bannerid
- zoneid
- source
- cb
- maxdest
{pageurl}
The URL of the page that requested the ad (url-encoded), for example http%3A%2F%2Flocalhost%2Fmagic_macros%2Ftest.html
{logurl}
To track impressions for third party ads, use the {logurl} macro. When the ad is displayed, OpenX substitutes the impression logging URL for the macro, for example http://.../delivery/lg.php?bannerid=.... The browser is redirected to this URL where OpenX logs the impression and then forwards the browser to the ad. As with the {clickurl} macro, OpenX appends various parameters for the ad to the URL and passes these to the impression logging page.
{logurl_enc}
The {logurl_enc} macro is similar to the {logurl} macro but the substituted URL is url-encoded, for example http%3A%2F%2F...%2Fdelivery%2Flg.php%3Fbannerid%3D....
{url_prefix}
The URL to the base of the OpenX delivery server, for example http://ads.example.com/www/delivery
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