htmlspecialchars(string, quotestyle, character-set ) — Convert special characters to HTML entities. The special characters are:
& (ampersand) becomes '&'
" (double quote) becomes '"'
' (singe quote) becomes '''
< (less than) becomes '<'
> (greater than) becomes '>'
htmlentities(string, quotestyle, character-set ) — Very similar to htmlspecialchars() function. However, this function all applicable characters having HTML character entity equivalents are translated into these entities.
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