Php array output problems

PHPcodeforeach ($ listas $ value) {$ this-& gt; output. $ value [q_username]; a $ this-& gt; output. print_r ($ value); B} two output statements. a outputs blank space. B can use the print_r method to output the structure of the array, which has the value and php array output problems.

PHP code

  foreach($list as $value){  $this->output .= $value['q_username'];//a  $this->output .= print_r($value);// b}

Two output statements. a outputs blank space. B can use the print_r method to output the structure of the array, which has a value and the name is q_username.

Why can't I lose it?

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PHP code

Foreach ($ list as $ key =>$ value) {$ this-> output. = $ value ['Q _ username']; // a $ this-> output. = print_r ($ value); // B}
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Remove $ this-> output. = from the front of the second line.
Foreach ($ list as $ value ){
$ This-> output. = $ value ['Q _ username']; //
Print_r ($ value); // B
}
Echo $ this-> output;
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   Discussion
   

   
Your $ value is a two-dimensional array (#2)
   
Use $ this-> output. = $ value ['Q _ username']; of course, it cannot be output.
   

  
------ Solution --------------------

  
   Discussion
   

   
Reference:
   

   
Your $ value is a two-dimensional array (#2)
   
Use $ this-> output. = $ value ['Q _ username']; of course, it cannot be output.
   

   

   
Sorry... you still have big eyes.