Use convenience function for one-off token evaluations to avoid too-long filenames and possible privacy issues

[demeritcowboy]

Overview

Addresses conversation at #21064 (comment) and uses same idea as in #16733

Before

Filename like this, that also possibly unnecessarily caches personal info.

templates_c/en_US//%%27/27E/27EEDEE2%%string%3A%0A++++++first+name+%3D+Alice%0A++++++receive_date+%3D+February+1st%2C+2015+12%3A00+AM%0A++++++contribution+status+id+%3D+1%0A++++++new+style+status+%3D+Completed%0A++++++new+style+label+%3D+Completed+Label%2A%2A%0A++++++id+1%0A++++++contribution_id++-+not+valid+for+action+schedule%0A++++++cancel+date+August+9th%2C+2021+12%3A00+AM%0A++++++source+SSF%0A++++++legacy+source+%0A++++++financial+type+id+%3D+1%0A++++++financial+type+name+%3D+Donation%0A++++++financial+type+label+%3D+Donation%0A++++++payment+instrument+id+%3D+4%0A++++++payment+instrument+name+%3D+Check%0A++++++payment+instrument+label+%3D+Check%0A++++++non_deductible_amount+%3D+%E2%82%AC+10.00%0A++++++total_amount+%3D+%E2%82%AC+100.00%0A++++++net_amount+%3D+%E2%82%AC+95.00%0A++++++fee_amount+%3D+%E2%82%AC+5.00.php

After

Filename looks something like eval+var%3D%24smartySingleUseString.php

Technical Details

Comments

Has test in the sense it came up during a form of stress-testing with the tests and at least one of them calls this.

[civibot]

(Standard links)

• If this is your first pull-request for CiviCRM, please browse CONTRIBUTING.md for information about the development and testing processes.
• If you are reviewing this pull-request, you may wish to consult the test sites and the Review Standards (long template, short template).

[eileenmcnaughton]

Ah - you had already decided to put this up - yes agree!