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PHP Multiple Choice Questions with Answers

  3. strings in php
Questions
1 What is the output of the following program ? 

	<?php
	$str = "Learn PHP and \c";
	echo $str;
	?>
A Fatal error
B Compilation error
C Learn PHP and \c
D prints 15

Answer: Option [C]

Unknown escape sequence \c is ignored

2 The var_dump() function displays
A the binary value of a variable
B any PHP value in a human readable form
C the whether a variable is empty or not
D none of these above

Answer: Option [B]
3 Which is true about var_dump() function?
A var_dump() loops infinitely
B var_dump() cuts off loop afetr getting same element two times
C var_dump() cuts off loop after getting the same element three times
D var_dump() cuts off loop after getting the same element five times

Answer: Option [C]
4 Which function is used to remove whitespace from the start of the string ?
A trim()
B strim()
C rtrim()
D ltrim()

Answer: Option [D]
5 ucfirst() function changes case
A of the first character of the string
B of the first character of each words
C of the first uppercase character appeared
D of the first lowercase character appeared

Answer: Option [A]
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