How do I execute a query in PHP

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Good morning, lets say I have resources named XYZ.pdf, LMO.pdf,Sample.pdf in week 1 of CourseGR1101 and resources nameed ABC.pdf, test.PDF and Sample.PDF in week 2 of CourseGR1101, is there a way to make the "activities block" show the resources that names are similar to (like/where query) sampl%, without showing ABC.pdf, XYZ.PDF, LMO.PDF... Thank you