why does the object array not change?

ppowell

		array_walk($tempResult, create_function('$a', 'return serialize($a);'));
                print_r($tempResult); // PRINTS AS OBJECT ARRAY, NOT AS SERIALIZED OBJECT ARRAY

Please help, this is stopping an entire process from working and I've been at it now for 2 hours!

Thanx
Phil

sidney

you will need to pass the var by reference to affect the original array

 array_walk($tempResult, create_function('&$a', '$a= serialize($a);')); 
                print_r($tempResult);

http://uk.php.net/manual/en/language.references.pass.php

ppowell

Sorry, that didn't work either! The array $tempResult is unchanged even when using the '&' reference pointer literally anywhere:

array_walk(&$tempResult, create_function('&$a', 'return serialize($a);')); // RETURNS "true" BUT NEVER CHANGES $tempResult

The array in question is an array of objects, not an array of scalar values, so apparently array_walk fails when parsing through an array of objects, yet produces 1 "true" boolean return.

Is this a bug?

Phil

tsinka

Hi,

what about this ?

  foreach($tempResult as $key => $value) {
    $tempResult[$key] = serialize($value);
  }

  print_r($tempResult);

btw ... why do you want to serialize the objects ?

Thomas

ppowell

$tempResult is an array of objects, and I have to look for a particular object in the object array.

in_array() cannot look for non-scalar parameters in an array so the only way for in_array() to work in this case is to serialize the parameter object and to serialize everything in the object array.

Phil

sidney

Originally posted by ppowell

array_walk(&$tempResult, create_function('&$a', 'return serialize($a);')); // RETURNS "true" BUT NEVER CHANGES $tempResult

[/B]

thats not the code i posted try it again with the $a=serialize($a);

ppowell

array_walk($tempResult, create_function('&$a', '$a = serialize($a);'));

Is that the code you posted? If so, no effect on $tempResult, however, using the for loop to serialze everything within $tempResult results in a bizarre confliguration of $tempResult itself to produce an entire serialized string with ";}"} garbage added at the end.

Phil

tsinka

Use the foreach loop and then view the source of the page. You'll see an array where each value is the serialized version of each object. That's how serialized objects look like (including the ;} stuff).

So how exactly do you want to identify the object (data in object,object class) ?

There are some PHP functions that might help you to find the object.

Thomas

ppowell

I want in_array($obj, $objArray), bluntly put.

The exact same functionaity as in_array except that it takes an object and object array.

Phil

sidney

 $tempResult=(object)array(array('one','two'),array('one','two'));
array_walk($tempResult, create_function('&$a', '$a = serialize($a);'));
print_r($tempResult);

output

stdClass Object ( [0] => a:2:{i:0;s:3:"one";i:1;s:3:"two";} [1] => a:2:{i:0;s:3:"one";i:1;s:3:"two";} )

this seems to serialize the object for me
can i see a example of your object

ppowell

Sorry but your coding is wrong for what I want. $tempResult is an array of objects, not an object of arrays.

$tempResult[0]->prop1 = 1;
$tempResult[0]->prop2 = 2;
$tempResult[0]->prop3 = 3;

$tempResult[1]->prop1 = 1000;
$tempResult[1]->prop2 = 0;
$tempResult[1]->prop3 = 999999999;

what I am doing first is this to $tempResult in one class method:

[code=php]
		// NEW 12/8/2004: THIS IS FOR combineResults() AND FOR THE $this->newlyAssociatedHTML DISPLAY IN getAssociationDisplayHTML() METHOD
		if (is_array($tempResult) && @sizeof($tempResult) > 0) 
		 array_walk($tempResult, create_function('&$a', '$a->newly_associated_id = "$a->associated_section_value";'));

OK, so that should add the property "newly_associated_id" onto each array element (each array element is an object) in $tempResult:

print_r(get_object_vars($tempResult[0])); // SHOULD PRINT  array ([0] => prop1; [1] => prop2; [2] => prop3; [4] => newly_associated_id )

however, when you do this:

array_walk($tempResult, create_function('&$a', '$a = serialize($a);'));

You will have a serialized string in each array element of $tempResult, however, your serialized string will look like this:

;s:19:"newly_associated_id";s:4:"1841";}";";";";";";

And so it keeps appending "; at the end of the serialized string every time.

Phil

ppowell

Ok this one is bizarre but I got it, and it had nothing to do with array_walk() in the first place, or at least apparently not anything to do with array_walk().. the problem is a fundamental PHP OO issue involving object assignments.

Phil