Battling with highlighting search criteria

Hi there, My brain has just gone very fuzzy... I have a search string ($search) and a result ($result). I need to highlight every occurance of $search in $result. I know that it means that I need to change (for example) $result = "This is a test, isn't it?" $search = "is" Into $result = "th<span class="highlight">is</span> <span class="highlight">is</span> a test, <span class="highlight">is</span>'nt it" Now I can easily see how to change the FIRST occurrence of the word, but how can I change every occurance? Thanks David Russell IT Support Manager Barloworld Optimus (Pty) Ltd Tel: +2711 444-7250 Fax: +2711 444-7256 e-mail: DavidR@BarloworldOptimus.com web: www.BarloworldOptimus.com

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