How to highlight changes/difference in one text paragraph from the other?

Question

Is it possible to highlight the modifications in one text paragraph from the other?

For example, there are 3 text fields in a database. Non-admin users can edit the text

Answer 1

Options:

• PHP Inline Diff (uses PEAR text-diff)
• PEAR Text_Diff
• Diff in Pure PHP
• xdiff_string_diff()

Stackoverflow Archive:

• Highlight the difference between two strings in PHP
• Apply Diff in PHP
• Need Help Optimizing php string difference function