php - Mysql similar text search -


i have mysql table below-

------------ keyword_text ------------ lego kit kids lego kit kids lego kit kids  +more different text entry

as can see, keyword_text in above example similar. want find match of above keywords. example if search lego kit kids , return me of 3 keyword_text. 

input: lego kit kids  output: lego kit kids lego kit kids lego kit kids  or   mysql resource use mysql_fetch_assoc

the table has approximately 1m entry , full text index added keyword_text. there mysql query or similar way using php?

thanks help

one approach @ levenshtein distance between search term , keyword list. there quiet few examples of how implement in mysql, eg. here

because have such large catalogue, need @ implementing filter first (perhaps based on 'like' lookup) not measuring distance 1m rows.

if rank results distance should able sort results relevancy search.


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