Detailed explanation and examples - double branch structure (with source code)

The last article introduced you to "Implementation steps - single branch structure (with source code)". This article continues to introduce you to the double branch structure, so let us continue to learn! ! ! Let's Go!!!

Double branch structure:

Format 1:

if (conditional statement)

A PHP statement

else

A PHP statement

• The double branch is to add an else branch based on the single branch

• If the conditional expression turns out to be true, the first PHP after if will be executed Code

• If the conditional expression result is false, the first day PHP code after else will be executed

• The code after if is called if interval or true interval

• The code after else is called else interval or false interval

Format 2:

if (conditional expression) {

One PHP statement

Two PHP statements

...

}else{

One PHP statement

Two PHP statements

...

}

## If used, generally use the {} format version, because {} is more readable and less likely to be confused, and the functions of format 2 already include the functions of format 1. A PHP statement can be written within {}.

'; else echo '看见他很不爽
'; echo '你懂的？
'; //格式2 $pome = '你知道他是谁吗'; if($pome == '你知道他是谁吗') { echo '风光的背后不是沧桑，是肮脏
'; echo '你身边有奇葩的人吗
'; }else{ echo '没办法，碰到就忍着吧，昂！
'; } ?>

PHP video tutorial》

The above is the detailed content of Detailed explanation and examples - double branch structure (with source code). For more information, please follow other related articles on the PHP Chinese website!