C.F. Scheidecker Antunes wrote:
I need to filter some strings. They can only contain characters like a...z or A..Z and 0..9. Some strings have blank spaces, -,./?>,< characters that must be discarded. I wrote a function to check each and every character but I guess there must be something else more efficient.
Any suggestions?
To get rid of them: $newstring = preg_replace('/[^0-9a-zA-Z]/','',$oldstring);
To detect them:
if(preg_match('/[^0-9a-zA-Z]/',$string))
{ echo 'bad characters present'; }
else
{ echo 'string okay'; }-- ---John Holmes...
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