Question:What is the difference between ereg_replace() and eregi_replace()?
Answer Ans: ereg_replace() function operates much like ereg() , except that its power iis extended to finding and replacing pattern with a replacement sting instead of simply locating it.
Eregi_replace() function operates exactly like ereg_replace, except that the search for pattern in string is not case sensitive.
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What is the difference between ereg_replace() and eregi_replace()?