Logical operators are used to perform logical operations of given expressions (relational expressions) or variables.
Q. What is logical operator in C++ with example?
C++ Logical Operators
Table of Contents
- Q. What is logical operator in C++ with example?
- Q. How does logical and work in C?
- Q. What is difference between include and require in PHP?
- Q. What is difference between include and include_once in PHP?
- Q. What is include () in PHP?
- Q. What is PHP and why it is used?
- Q. How do I write PHP code?
- Q. How do I open a php file in my browser?
| Operator | Example | Meaning |
|---|---|---|
| && | expression1 && expression 2 | Logical AND. true only if all the operands are true. |
| || | expression1 || expression 2 | Logical OR. true if at least one of the operands is true. |
| ! | !expression | Logical NOT. true only if the operand is false. |
Q. How does logical and work in C?
The logical-OR operator performs an inclusive-OR operation on its operands. The result is 0 if both operands have 0 values. If the first operand of a logical-OR operation has a nonzero value, the second operand is not evaluated. The operands of logical-AND and logical-OR expressions are evaluated from left to right.
Q. What is difference between include and require in PHP?
Difference Between include and require Statements The only difference is — the include() statement will only generate a PHP warning but allow script execution to continue if the file to be included can’t be found, whereas the require() statement will generate a fatal error and stops the script execution.
Q. What is difference between include and include_once in PHP?
The include_once statement includes and evaluates the specified file during the execution of the script. This is a behavior similar to the include statement, with the only difference being that if the code from a file has already been included, it will not be included again, and include_once returns true .
Q. What is include () in PHP?
The Include() function is used to put data of one PHP file into another PHP file. If errors occur then the include() function produces a warning but does not stop the execution of the script i.e. the script will continue to execute. Example. First of all we create a PHP file.
Q. What is PHP and why it is used?
PHP is a server side scripting language. that is used to develop Static websites or Dynamic websites or Web applications. PHP stands for Hypertext Pre-processor, that earlier stood for Personal Home Pages. PHP scripts can only be interpreted on a server that has PHP installed.
Q. How do I write PHP code?
After saving your code file into the htdocs folder follow the below steps.
- Open XAMPP control panel.
- Start Apache and MySQL servers.
- Go to any browser and type localhost/filename. php in the search box.
- If you save your PHP code in a subfolder in htdocs, then type localhost/subfolder_name/filename.php.
Q. How do I open a php file in my browser?
Open PHP/HTML/JS In Browser
- Click the button Open In Browser on StatusBar.
- In the editor, right click on the file and click in context menu Open PHP/HTML/JS In Browser.
- Use keybindings Shift + F6 to open more faster (can be changed in menu File -> Preferences -> Keyboard Shortcuts )
