What will be the output if we replace the line $num = preg_grep(“/[0-5]/”, $number); with $num = preg_grep(“/[0-5]/”, $number, PREG_GREP_INVERT);?(a) Array([0]=>0 [1]=>1 [2]=>two [3]=>three [4]=>four [5]=>5)(b) Array([2]=>two [3]=>three [4]=>four)(c) Array([1]=> 1)(d) Array([0]=>0 [5]=>5)I have been asked this question by my school teacher while I was bunking the class.This question is from Introduction to Preg in PHP in section Objects and Databases in PHP of PHP

What will be the output if we replace the line $num = preg_grep(“/[0

1.	What will be the output if we replace the line $num = preg_grep(“/[0-5]/”, $number); with $num = preg_grep(“/[0-5]/”, $number, PREG_GREP_INVERT);?(a) Array([0]=>0 [1]=>1 [2]=>two [3]=>three [4]=>four [5]=>5)(b) Array([2]=>two [3]=>three [4]=>four)(c) Array([1]=> 1)(d) Array([0]=>0 [5]=>5)I have been asked this question by my school teacher while I was bunking the class.This question is from Introduction to Preg in PHP in section Objects and Databases in PHP of PHP
Answer» Right CHOICE is (b) Array([2]=>two [3]=>THREE [4]=>four) To elaborate: When we include PREG_GREP_INVERT, this will invert our data, so instead of OUTPUTTING NUMBERS it will output our non-numeric VALUES.

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