מנגנון נחמד נגד ספאמרים - captcha

byAlex R. •February 13, 2007
אני מניח שרבים נתקלים בתמונה עם מספר או כמה אותיות שצריך להקליד כדי להרשם נניח לשירותי דואר אלקטרוני או פורום. אז קוראים ליצור הזה בשם
captcha - completely automated public Turing test to tell computers and humans apart
אז איך נייצר אותו בעצם? קודם כל צריך לדאוג שיש לנו את ההרחבה הנחוצה לקומפילר שזה gd extension
אחר כך נלך לאתר המדהים הבא:
http://codewalkers.com/seecode/630.html
ודווקא בחרתי להשתמש בדוגמה שבתגובה האחרונה ולא במקור, נשמע יותר משכנע.

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מנגנון נחמד נגד ספאמרים - captcha

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