How can we use multiple nestings of if statements in PHP process control? ? ?-PHP Problem-php.cn

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How can we use multiple nestings of if statements in PHP process control? ? ?

慕斯

May 25, 2021 pm 05:29 PM

The previous article introduced you to "Let's learn about the nested if else if structure of PHP process control! ! ! 》, this article continues to introduce to you the multiple nesting of if statements in PHP process control: Let's Go!!!

How can we use multiple nestings of if statements in PHP process control? ? ?

What are multiple if statements? Kinds of nesting:

One or more if statements can be nested in an if statement to realize the judgment of multiple parameters. It is a variety of nesting of if statements. Its structure is as follows:

<?php
if(判断1){
  if（判断2）{
       代码段1
 }else{
       代码段2
       }
}else{
      if（判断）{
              代码段3
         }else{
               代码段4
         }
}
?>

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The following is a specific code demonstration, as follows:

<?php
//0表示工作秘书，1表示生活秘书
//用代码模拟随机产生当前的工作是生活秘书还是工作秘书的
    $xiayu = rand(0,1);
    if($xiayu){
        //是否购买雨伞
        $you = rand(0,1);
        if($you){
            echo &#39;下雨天，已买伞，不用再购买&#39;;
        }else{
            echo&#39;下雨天，未已买伞，需要再购买&#39;;
        }
    }else{
 
    }
?>

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The code running results are as follows:

How can we use multiple nestings of if statements in PHP process control? ? ?

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