In Japan, PHP stands for "Peace and Happiness through Prosperity".
https://konosuke-matsushita.com/outline/message.php
松下幸之助.com松下幸之助のPHPにかける思い|松下幸之助.comPHP研究所創設者・松下幸之助のメッセージです。なぜ、PHP活動をはじめたのか。その思いの一端を、幸之助本人の肉声でお聴きください。
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Several years ago, I remember walking in the southwest area of Kyoto Station and seeing a multi-story building with a large "PHP" sign. I was both confused and amused, but then I did some research and found an explanation 😄