记laravel项目,本地环境PHP7.1,线上PHP版本7.2,报错each函数废弃问题

the each() function is deprecated. this message will be suppressed on further calls laravel 

 例子1:

php7.1写法

  

   

    

     

    
    

     

      if ( is_array( $u ) ) {
     
    
   

    

     

    
    

     
            while( list( $key ) = each( $u ) ) {
     
    
   

    

     

    
    

     

                      $u = $u[$key];
     
    
   

    

     

    
    

     
                break;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              }
     
    
  
 

改为php7.2写法

  

   

    

     

    
    

     

      if ( is_array( $u ) ) {
     
    
   

    

     

    
    

     
          $u = current($u);
     
    
   

    

     

    
    

     

              }
     
    
  
 

As PHP7.2 says, I suggest to use foreach() function as a substitute of deprecated each(). Here I let a couple of examples that works to me in Wordpress.----正如PHP7.2所说，我建议使用foreach（）函数来替代已弃用的each（）。这里我举几个在Wordpress中对我有用的例子。

  

   

    

     

    
    

     

      (OLD) while ( list( $branch, $sub_tree ) = each( $_tree ) ) {...}
     
    
   

    

     

    
    

     

      (NEW) foreach ( (Array) $_tree as $branch => $sub_tree ) {...}
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      (OLD) while ( $activity = each( $this->init_activity ) ) {...}
     
    
   

    

     

    
    

     

      (NEW) foreach ( $this->init_activity as $activity ) {...}
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      (old)while(list($file, $info) = each($this->images))
     
    
   

    

     

    
    

     

      (new)foreach($this->images as $file => $info) {
     
    
   

    

     

    
    

     
    // ...
     
    
   

    

     

    
    

     

      }
     
    
  
 

例子2 

  

   

    

     

    
    

     

      16548 while (list($id, $name) = each($attr_array[1])) {  //7.1
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      I replaced the line with the next code in both lines and it worked,替换为如下
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      foreach($attr_array[1] as $id => $name) {  //7.2
     
    
  
 

例子3:我的例子:支付过程中生成签名时出现错误 

  

   

    

     

    
    

     

      public function createLinkString($param)
     
    
   

    

     

    
    

     

          {
     
    
   

    

     

    
    

     
        $arg = "";
     
    
   

    

     

    
    

     

              //数组排序
     
    
   

    

     

    
    

     

              ksort($param);
     
    
   

    

     

    
    

     

              reset($param);
     
    
   

    

     

    
    

     

              //7.1写法
     
    
   

    

     

    
    

     

              /*while (list ($key, $val) = each($param)) {
     
    
   

    

     

    
    

     
            if ($key == "sign") continue;
     
    
   

    

     

    
    

     
            if (!empty($key)) {
     
    
   

    

     

    
    

     
                $arg .= $key . "=";
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            if (is_array($val)) {
     
    
   

    

     

    
    

     
                $arg .= $this->createLinkString($val) . "&";
     
    
   

    

     

    
    

     

                  } else {
     
    
   

    

     

    
    

     
                $arg .= $val . "&";
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              }*/
     
    
   

    

     

    
    

     

              //7.2写法
     
    
   

    

     

    
    

     

              foreach ($param as $key => $val) {
     
    
   

    

     

    
    

     
            if ($key == "sign") continue;
     
    
   

    

     

    
    

     
            if (!empty($key)) {
     
    
   

    

     

    
    

     
                $arg .= $key . "=";
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            if (is_array($val)) {
     
    
   

    

     

    
    

     
                $arg .= $this->createLinkString($val) . "&";
     
    
   

    

     

    
    

     

                  } else {
     
    
   

    

     

    
    

     
                $arg .= $val . "&";
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

              //去掉最后一个&字符
     
    
   

    

     

    
    

     
        $arg = substr($arg, 0, strlen($arg) - 1);
     
    
   

    

     

    
    

     
        return $arg;
     
    
   

    

     

    
    

     

          }
     
    
  
 

参考:php 7.2 each() function is deprecated

文章来源: blog.csdn.net，作者：lxw1844912514，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/lxw1844912514/article/details/108755853