Let’s talk about the current situation, prospects and opportunities of if statements

I explained to you a multiple-selection elseif statement earlier. Although this statement can make multiple judgments, when used, it requires writing a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid If there are too many if statements and to improve the readability of our program, we can use switch multiple judgment statements. In this chapter we will introduce the "switch statement" to you. Syntax of switch statement: switch (expr) { case expr1: statement;                  break; case expr2: &

1. 10 recommended articles about switch

##Introduction: I explained to you a multiple-selection elseif statement earlier. Although this statement can make multiple judgments, when used, it requires writing a lot of if statements, which brings inconvenience to the readability of our program. In order to To avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter, we will introduce the "switch statement" to you. The syntax of the switch statement: switch (expr){    case ...

2. 10 recommended articles about elseif

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used in multiple ways. Judgment, but when using it, you need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, you can use switch multiple judgment statements. In this chapter we will Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

3. 10 about the usage of PHP conditional control statement examples Recommended article

Introduction: I explained to you a multiple selection elseif statement earlier. Although this Statements can be used for multiple judgments, but when used, a lot of if statements need to be written, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgments. Statement, in this chapter we will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

4. A summary of code examples of elseif statements based on PHP

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be Multiple judgments, but when used, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. This chapter We will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

5. 10 recommended articles about elseif statements

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used for multiple selections. This kind of judgment, but when using it, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter we Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

6. 10 recommended articles about switch

Introduction: I explained to you a multiple-selection elseif statement earlier. Although this statement can make multiple judgments, when used, We need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter, we will introduce to you the "switch statement" . The syntax of the switch statement: switch (expr){    case ...

7. 10 recommended articles about if conditional statements

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be Multiple judgments, but when used, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. This chapter We will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

8. PHP control statement "switch" statement example Detailed explanation

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can Make multiple judgments, but when using them, you need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, you can use switch multiple judgment statements. In this chapter, we will introduce to you the "switch statement".

9. Detailed explanation of the "elseif statement" example of PHP conditional control statement

Introduction: We have learned the "if...else statement" before and know that our "if...else statement" can only choose two results, either true or false. But what should we do when multiple conditions appear? What does it mean to have multiple items? To give an example, if there is a class exam, and after the exam results come out, the teacher will classify: those with a score of 90 or above are excellent; those with a score between 60-90 are good, and those with less than 60 are considered It's a failing grade. Under these multiple conditions, we need to use our "elseif statement".

10. Detailed explanation of the "if statement" example of PHP conditional control statement

Introduction: In all programming languages, such as C language. JAVA, etc., all have if statements, including PHP of course. The function of the if statement is to select and execute different code fragments according to conditions.

[Related Q&A recommendations]:

How does php determine the content of database fields

javascript - There is a problem in judging the number of characters in a string

javascript - A PHP page displays different content according to different values ​​passed in

javascript - The if statement in the change event in jquery is invalid

python - The AND or operation of the if statement

The above is the detailed content of Let’s talk about the current situation, prospects and opportunities of if statements. For more information, please follow other related articles on the PHP Chinese website!