How can I get caption for image (imported via php) from CSV

How can I get caption for image (imported via php) from CSV

References

Reference NO 1

http://wordpress.org/support/topic/import-post-images-via-url-in-csv-files

Reference NO 2

http://fabrikar.com/forums/index.php?threads/csv-import-with-repeated-photo-caption-groups.26448/

Reference NO 3

http://www.corecommerce.com/kb.php?module=kbarticle&search=import+format

Reference NO 4

http://www.photographers-toolbox.com/products/lrtransporter.php

Reference NO 5

http://help.adobe.com/en_US/lightroom/using/WS436CA8E4-7E7B-4b4c-B522-1449D8F21CE0.html

Reference NO 6

http://forums.camerabits.com/index.php?topic=6399.0

Reference NO 7

http://getk2.org/community/New-to-K2-Ask-here-first/141771-K2-CSV-import-tool?limit=20&start=60

Reference NO 8

http://www.csvimproved.com/component/search/?searchword=csv&searchphrase=exact&ordering=newest&start=40