Filtering user inputs

[Anon]

Hi all,

I'm very new to PHP and MySQL.

Could someone please tell me how to strip the single quotes ( ' ) from user input fields as they cause errors in my scripts.

Any references greatly appreciated.

Jon

[Anon]

I used javascript....

<script language="javascript">

<!-->
/**************************************************
Gets rid of pesky ' single quotes from status_update
****************************************************/

function stringFilter (input)
{
s = input.value;

            filteredValues = "'";     // Characters stripped out
            var i,c;
            var returnString = "";

            for (i = 0; i < s.length; i++) {  // Search through string and append to unfiltered values to returnString.
                    c = s.charAt(i);
                    if (filteredValues.indexOf(c) == -1) returnString += c;
            }
            input.value = returnString;

}
//-->

</script>

and in the HTML form....

<input type="submit" .... onClick="stringFilter(this.fieldname)">