I'm trying to remove, via regular expression, all but alphanumeric characters & spaces.
Here's the conversion I am hoping to achieve.
"I am a string" → "I am a string"
"How are you?" → "How are you"
"#53-Jeff" → "53-Jeff"
So far I have this:
return preg_replace("/[^0-9a-zA-Z]/","", $val);
But being a regex novice, I can't figure out how to insert a space. I had odd results when I tried.