Discussion :: PHP - CS
- 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);?
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A.
Array([0]=>0 [1]=>1 [2]=>two [3]=>three [4]=>four [5]=>5) |
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B.
Array([2]=>two [3]=>three [4]=>four) |
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C.
Array([1]=> 1) |
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D.
Array([0]=>0 [5]=>5) |
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Answer : Option B
Explanation :
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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