noob question about adding a php block

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I'm trying to integrate a php script that does an api call. the example is here...
https://churchcommunity.fogbugz.com/default.asp?W449...

but I'm not sure if I should create a package, a custom block, or use some sort of php or html block... any suggestions? I'm a noob with php and C5...

I don't need to input anything into the block, just be able to insert the block onto a page...

jleinbaugh