给定一个对象数组，如何回显内容？

Question

I have an object array $this->result

When I echo $this->result I get Array.

When I print_r($this->result) I get a blank screen.

How do I find what is being stored in this object array?

EDIT: By blank screen I mean the nothing is being rendered at all.

EDIT2: Here is the code that renders, but I don't know what it's doing.

<?php  
    foreach ($this->result as $r){
        extract($r);
        // Then there is a bunch of code beneath here 
        // that displays different results
   } 
?>

However if I do this, the page no longer renders at all.

    echo '<pre>' . print_r($this->result, true) . '</pre>';

    foreach ($this->result as $r){
        extract($r);
        // Then there is a bunch of code beneath here 
        // that displays different results
   } 

EDIT3:

After installing and turning on xdebug, var_dump now displays the data. (however print_r() still does not). Any thoughts as to why that might be?

Answer 1

If available, honestly I would use a php debugger like xdebug and set up a debugging client and just inspect it. What is the reason for not knowing the contents of the objects in the array?

print_r when set to true will return the output instead of printing it to the screen.

what about

foreach ($this->result as $r){
   print_r($r);
}