php book generator script

The php script will reside on my website <[login to view URL]> which is running a Linux Server, hosted by [login to view URL] Theere will be no human intervention and the php script will be running 24/7. Customers will make a call to the php script on the website, giving a parameter number, which defines the customised Book. The script will use a file [[login to view URL]][1] and will use this to create a customised ebook. It will need three find/replace operations on the first page only. After the edits, the .txt file will be passed to a text to pdf converter and will generate a customised ebook in .pdf format. The script will use the sample script provided to generate two emails to specified email addresses, in a particular format. Details follow... ## Deliverables The first task is to examine the format of the call, which should be of the form [[login to view URL]][2] where NNNNN is a digital integer parameter. [eg. 1017] The value of the parameter must be greater than 998 and less than or equal to [[login to view URL]][3] If the parameter is incorrect then give the message "Incorrect Parameter" and abort. Otherwise Pull in first_name, last_name, active_email from a Screen. [I will provide a working script which does most of this, needing a few line edits only.] Using the sample script, generate two emails in the correct format Using the screen parameters first_name, last_name and active_email. and send them to <joinatm@[login to view URL]> and <join2atm@[login to view URL]> load the NNNNNN parameter into the key field book_number in the MySQL database book_data and read in one record. Examine the field book_flag in the MySQL database, If it contains null then a customised ebook is required. If it does not contain null, then a customised ebook already exists, so simply reset the timer for the latest call [see later for this]. To generate a customised ebook:- Pick up the text file [[login to view URL]][4], which is the text file for the customised ebook. make a copy called [login to view URL] [where nnnnnn is the key field book_number in the database record]. On the first page only, find XXXXXX and replace it by the field first_name in the database record. On the first page only, find YYYYYY and replace it by the field last_name in the database record. On the first page only, find NNNNNN and replace it by the field book_numberin the database record. That concludes the edits needed to customise the ebook. Now run the text to pdf utility form2pdf [which I will supply], to generate a customised ebook called [login to view URL] [eg [login to view URL]] This ebook will be temporarily stored in [[login to view URL]][5] - for up to twelve hours, where it will be available for download. Set up a twelve hour timer and store it in the field book_flag in the MySQL database as [login to view URL] Display a message "Your ebook can be downloaded from ([[login to view URL]][5]) and the download will expire in twelve hours." NB. In the event of multiple calls for the same ebook, the field book_flag will be reset to a new 12 hour time for each call. Continue monitoring the field book_flag and when the timer runs out delete the customised ebook [[login to view URL]][5] to save space on the server. Reset the field book_flag in the MySQL database in the NNNNNN record to null. End of script...