Well,
I need the next: i have a text whitin "Apple" and i need that word in bold, but too if the word is "apple" or "ApPle" or "applE" etc...
Now i'm using:
str_replace ($txtBuscar,"b".$txtBuscar."</b>", $txtResultado);
where $txtbuscar is "apple" and $textresultado is all the text.
Thank you very much, really.