CODE EXAMPLE FOR PHP

vault deployment in production

#Create a config file and initialize with using the config file
vault server -config <CONFIG_FILE_NAME>

#Check status. However, it will error export and try again
export VAULT_ADDR='http://127.0.0.1:8200'
vault status

#Do initlization and it will give you the unseal keys and root token
vault operator init

#Vault by default starts in sealed mode and for unsealing you need to provide 3 keys from above command
vault operator unseal <TOKEN[1-3]>