I'm trying to take a string and remove all "invalid characters" from it.
$string="Frid#ays are@ re$ally G{}[]RE~AT. F*rid<>ay at 5 is be^tt&er.";
The only characters that should be allowed are A-Z, a-z, 0-9,
.(period), -(dash), ;(semi-colon), and :(colon).
All other characters should be removed.
After "cleaning" the string, the output should be: "Fridays are really
GREAT. Friday at 5 is better."
Any ideas? Your help is appreciated.
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