PHP Regular Expressions
What will be the output of the following PHP code?
$number = array(0,1,two,three,four,5);
$num = preg_grep("/[0-5]/", $number);
print_r($num);

Array([0]=>0 [1]=>1 [5]=>5)
Array([0]=>0 [1]=>1 [2]=>two [3]=>three [4]=>four [5]=>5)
Array([2]=>two [3]=>three [4]=>four)
Array([1]=> 1)

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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));

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

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