Output of PHP programs | Set 4
Predict the output of below PHP programs:
Question 1
<?php "Welcome to zambiatek!" ?> |
Options:
- Error
- Welcome to zambiatek!
- 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 zambiatek." ?> |
Options:
- Error
- I am intern at zambiatek.
- Nothing
- Missing semicolon error
Output:
Error
Explanation: The statement should be print_r(‘I am intern at zambiatek.’) 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 'zambiatek'; <html> zambiatek </html> ?> |
Options:
- zambiatek
- zambiatek zambiatek
- zambiatek
zambiatek - 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 "zambiatek1"; echo " zambiatek2"; ECHO " zambiatek3"; ?> |
Options:
- zambiatek1 zambiatek2 zambiatek3
- zambiatek1
zambiatek2
zambiatek3 - Error
- zambiatek1 zambiatek3
Output:
zambiatek1 zambiatek2 zambiatek3
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 "zambiatek"; echo "# zambiatek"; ?> |
Options:
- # zambiatek
- zambiatek# zambiatek
- zambiatek
- Error
Output:
# zambiatek
Question 7
<?php echo "echo "zambiatek""; ?> |
Options:
- zambiatek
- echo “zambiatek”
- echo zambiatek
- Error
Output:
Error
Explanation: It would have printed echo “zambiatek” if the statement was echo “echo ”zambiatek””;.
