PHP one-dimensional array loop traversal implementation method

A simple example of PHP looping a one-dimensional array, first convert the string into an array according to certain rules, and then traverse the output. It is actually a very simple method

A simple PHP An example of looping a one-dimensional array is to first convert the string into an array according to certain rules, and then traverse the output. It is actually a very simple method, because a two-dimensional array structure diagram I recently made was a headache, so I can't remember how to perform traversal output for a while. The simple example code is as follows:

foreach traverses the array

 $value) { 
    echo $key.'='.$value.'
'; 
  } 
?>

Traverses the associative array

'Lilia','Gender'=>'female','Age'=>'23','School'=>'Peking University'); 
   foreach ($userList as $key => $value)  
  { 
    echo $key.'='.$value.'
'; 
   } 
?>

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