PHP Regular Expressions
What will be the output of the following PHP code?
$author = "nachiketh@example.com";
$author = str_replace("a","@",$author);
echo "Contact the author of this article at $author.";

Contact the author of this article at n@chiketh@ex@mple.com
Error
Contact the author of this article at nachiketh@ex@mple.com
Cont@ct the @uthor of this @rticle @t n@chiketh@ex@mple.com

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PHP Regular Expressions
What will be the output of the following PHP code?
$text = "this istsome text thatnwe might like to parse.";
print_r(split("[nt]",$text));

this is some text that we might like to parse.
Array ( [0] => some text that [1] => we might like to parse. )
Array ( [0] => this is [1] => some text that [2] => we might like to parse. )
[0] => this is [1] => some text that [2] => we might like to parse.

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