Output of PHP programs | Set 4
Predict the output of below PHP programs:
Question 1
<?php "Welcome to GeeksforGeeks!" ?> |
Options:
- Error
- Welcome to GeeksforGeeks!
- Nothing
- Missing semicolon error
Output:
Nothing
Explanation: If you need to output something onto the screen you’ll need to use echo or print_r.
Question 2
<?php print_r "I am intern at GeeksforGeeks." ?> |
Options:
- Error
- I am intern at GeeksforGeeks.
- Nothing
- Missing semicolon error
Output:
Error
Explanation: The statement should be print_r(‘I am intern at GeeksforGeeks.’) to print Hello world. Also if there is only one line then there is no requirement of a semicolon, but it is better to use it.
Question 3
<?php echo 'GeeksforGeeks'; <html> GeeksforGeeks </html> ?> |
Options:
- GeeksforGeeks
- GeeksforGeeks GeeksforGeeks
- GeeksforGeeks
GeeksforGeeks - Syntax Error
Output:
Syntax Error
Explanation: Parse error: syntax error, unexpected ‘<‘ on line 2. You can not use the html tag inside php tags.
Question 4
<?php Echo "GeeksforGeeks1"; echo " GeeksforGeeks2"; ECHO " GeeksforGeeks3"; ?> |
Options:
- GeeksforGeeks1 GeeksforGeeks2 GeeksforGeeks3
- GeeksforGeeks1
GeeksforGeeks2
GeeksforGeeks3 - Error
- GeeksforGeeks1 GeeksforGeeks3
Output:
GeeksforGeeks1 GeeksforGeeks2 GeeksforGeeks3
Explanation: In PHP, all user-defined functions, classes, and keywords (e.g. if, else, while, echo, etc.) are case-insensitive.
Question 5
<?php $color = "green"; echo "$color"; echo "$COLOR"; echo "$Color"; ?> |
Options:
- greengreengreen
- greengreen
- green
- Error
Output:
green
Explanation: In PHP, all variables are case-sensitive.
Question 6
<?php # echo "GeeksforGeeks"; echo "# GeeksforGeeks"; ?> |
Options:
- # GeeksforGeeks
- GeeksforGeeks# GeeksforGeeks
- GeeksforGeeks
- Error
Output:
# GeeksforGeeks
Question 7
<?php echo "echo "GeeksforGeeks""; ?> |
Options:
- GeeksforGeeks
- echo “GeeksforGeeks”
- echo GeeksforGeeks
- Error
Output:
Error
Explanation: It would have printed echo “GeeksforGeeks” if the statement was echo “echo ”GeeksforGeeks””;.
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