The PHP format is associated with an older program released by Adobe, called PhotoParade. The software was designed to help users create and send slideshows and screen savers using a selected number of photos, and then sharing them by email. PhotoParade was launched in the late 1990s and has now been discontinued, so it might not be compatible with most image viewers.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple PHP files as once.
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