Remove unwanted characters from string

Hi guys how do I escape the following character from my string? Have tried all sorts of things and no luck

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If and only if you are using PHP then try this:


<?php
	defined('jj') ? NULL : define('jj', '<br />');
	
	$a = "&#193;";
	$b= "this &#193; is &#193; a &#193; test &#193; to &#193; see &#193; if &#193; it &#193; works";
	$c= " <b style='color:#f00; font-size:large'>new-string</b> ";
	
	echo jj, 'Before';
	echo jj, '$a = ', $a;
	echo jj, '$b = ', $b;
	echo jj, '$c = ', $c;

	echo jj, 'After';
	$b = str_replace( $a, $c, $b );
	echo jj, '$a = ', $a;
	echo jj, '$b = ', $b;
	echo jj, '$c = ', $c;
die;	
?>