CODE EXAMPLE FOR PHP

Root composer.json requires php ^7.2.5 but your php version (8.0.3) does not satisfy that require

It's becouse in your project in composer.json file you have:

"require": {
    "php": ">=7.3",
    .....
},
Try to update this requirement to:

"require": {
    "php": "^7.3|^8.0",
    .....
},