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up vote 0 down vote favorite

I have read a number of the answers on this but I am not getting something. I have an object that retrieves data from a file and puts into an array format and I am trying to get the data into a variable in the calling file so that I can work with the data.

 calling.php

    $x = new obj();
    $x -> method_y();

 objectfile.php

    public function method_y(){
       ..... code does stuff .....
       print_r($array);
    }

    array(
         [0] => array
             (
                 [key1] => value1
                 [key2] => value2
                 [key3] => value3
             )
          [1] => array
             (
                 [key1] => value1
                 [key2] => value2
                 [key3] => value3
              )
    )

Is is better to use an echo, return, or print from the method and should I use the json_encode to return it. How do I get the returned data into out of the object into something I can work with. For instance using the json_encode in the method I get back json but the json_decode wants a string.

Again I have read a number of answers on this but I am not getting it.

Thanks in advance.

share|improve this question
    
php.net/manual/en/functions.returning-values.php – tigrang Nov 19 '14 at 17:10
up vote 0 down vote accepted

You can as well return the array itself, and then traverse the array using for loops, maybe something like this

public function method_y(){
    ..... code does stuff .....
    return $array;
}

$var = $x -> method_y();

foreach($var as $element) {
    foreach($element as $key => $value) {
          echo $key;
          echo $value;
    }
}
share|improve this answer
    
I changed my calling file to have $j = $x -> method_y(); and when I try to loop over $j I get the error Invalid argument supplied for foreach(). – user1088014 Nov 19 '14 at 17:27
    
var_dump($j); tell me the result of this – bSaraogi Nov 19 '14 at 17:31
    
NULL. I tried return $array and print_r($array) from the method. The print_r puts it to the screen but the $j is NULL. Not sure if this makes a difference but I am running from command line using 5.6 on Windows 7. – user1088014 Nov 19 '14 at 17:34
    
The system has nothing to do with it, are you sure you are generating the array to be returned right? – bSaraogi Nov 19 '14 at 17:39
    
Ok this is where being rusty meets Doh! I am using a call to a method_x to call method_y. I have a return in method_y but not in method_x. Getting data on the screen was leading me in the wrong direction. Problem solved. Thanks. – user1088014 Nov 19 '14 at 17:47

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