How to use the php if statement [closed]

1. How do you end an if statement in PHP?
2. How do I do an if statement in PHP?
3. Does PHP have else if?
4. What is the basic PHP construct for testing whether an expression evaluates to true?
5. What are the 5 PHP operators?
6. Is empty in PHP?
7. What are the 4 PHP conditional statements?
8. Is a number PHP?
9. How do I debug PHP?
10. What does || mean in PHP?
11. What is ternary operator in PHP?
12. Which PHP type hinting was introduced?

How do you end an if statement in PHP?

After either branch has been executed, control returns to the point after the end If . The if statement will end if none of its conditions evaluate to true or if one of its conditions evaluate to true . The statement(s) associated with the first true condition will evaluate, and the if statement will end.

How do I do an if statement in PHP?

PHP if...else... elseif Statements

1. if statement - executes some code if one condition is true.
2. if...else statement - executes some code if a condition is true and another code if that condition is false.
3. if... ...
4. switch statement - selects one of many blocks of code to be executed.

Does PHP have else if?

In PHP, you can also write 'else if' (in two words) and the behavior would be identical to the one of 'elseif' (in a single word). The syntactic meaning is slightly different (if you're familiar with C, this is the same behavior) but the bottom line is that both would result in exactly the same behavior.

What is the basic PHP construct for testing whether an expression evaluates to true?

As described in the section about expressions, expression is evaluated to its Boolean value. If expression evaluates to true , PHP will execute statement, and if it evaluates to false - it'll ignore it. More information about what values evaluate to false can be found in the 'Converting to boolean' section.

What are the 5 PHP operators?

PHP Operators

• Arithmetic operators.
• Assignment operators.
• Comparison operators.
• Increment/Decrement operators.
• Logical operators.
• String operators.
• Array operators.
• Conditional assignment operators.

Is empty in PHP?

Technical Details

What are the 4 PHP conditional statements?

PHP Conditional Statements

• The if statement.
• The if...else statement.
• The if... elseif....else statement.
• The switch... case statement.

Is a number PHP?

The is_numeric() function checks whether a variable is a number or a numeric string. This function returns true (1) if the variable is a number or a numeric string, otherwise it returns false/nothing.

How do I debug PHP?

Here are the steps to doing PHP programming:

1. Check for PHP extensions in VS Code.
2. Install the PHP Debug extension.
3. Click “reload” to reload VS Code.
4. Install Xdebug. ...
5. Now when you have the right version, put it in the PHP/ext directory.
6. Next, you need to configure PHP to use the extension and allow remote debugging.

What does || mean in PHP?

|| means or. It's a logical or, so it's true if at least one of the terms is true, false otherwise.

What is ternary operator in PHP?

The ternary operator is the only operator in PHP which requires three operands: the condition, the true and the false result. ... The ternary operator will use its lefthand operand when the condition evaluates to true . This could be a string, an integer, a boolean etc.

Which PHP type hinting was introduced?

2. Type Hinting was introduced in which version of PHP? Explanation: PHP 5 introduced the feature of type hinting. With the help of type hinting, we can specify the expected data type of an argument in a function declaration.