Find file and rename it automaticly with php coding -

I have a directory of images, and it has more than 800 images, I want to change some of their names in the argument. ..

is the argument; Find the files and convert them to "hot" words "hot" in their names in specific directories.

My directory: / images

I want to change these words: "with cool" hot "words.

Old: Images / It-Quiet New: Images / This is-hot-weather.jpg

How can I do this with PHP?

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You can take 5 minutes to create it if you have done some research

provided you have the appropriate permissions :)