Question

So I am using PHPExcel (http://phpexcel.codeplex.com/) to import a excel sheet. everything works fine on my development system, BUT it doesn t quite work on the live system.

Hence I debugged and looked what could be wrong. I got to a point where I found that a method obviously returned NULL, where it should have returned an object. I looked into that method, and var_dump()ed the var which was returned in the method. the var was NOT NULL

PSEUDO CODE:

class Bar()  
{  
 function methodInAClass()  
 {  
    $test = new Foobar;  
    [...]
    /* $test was an object here with a lot of data (var_dump()
     * took around 100.000 lines in an editor) */
    var_dump($test); 
    return $test;   
 }  
}  

$bar =& new Bar();  
$test2 = $bar->methodInAClass(); //$test2 is NULL here

What am I doing wrong? Is this a problem that comes from the php.ini?

Answer 1

A higher memory limit seems to have fixed the issue!

Answer 2

PHP shouldn t care how big the returned value is if it s the actual object being returned (as it is in this case). More explicit detail might help, because your quoted example should work without issue... I have some familiarity with PHPExcel. What version are you using? What object are you returning? (IIRC there isn t a Foobar object in the library) Are you using any memory caching?

Answer 3

I see no reason for this happen. Unless you re doing something funny you re not showing us, I don t see how you could check this out without a native debugger, where you could, for instance, put a data breakpoint on the contents of the object.

And by the way, there s no reason you should do $bar =& new Bar(); instead of $bar = new Bar(); (in PHP5); in fact, the former is deprecated.

友情链接