CODEWITHSUNDEEP
php
Highmastdon
Highmastdon

Reputation: 7520

Use foreach() to loop through object and change values

I've got a problem looping trough an object ( stdObject ) and altering a value.

What happens is:

Thats what is going wrong. I don't know how to put the converted string back into the object.

Here is the code of this function.

function jsonRequestHandlerUTF8($query) {
    $id = "0";
    $message = errorHandler($id);
    $a_result = array();
    if (mysql_num_rows($query) == 0) {
        //Empty sql query
        $id = '1';
        $a_result = jSONErrorObject($id);
    } else {
        //No error occurred
        $a_result['ExceptionId'] = $id;
        $a_result['ExceptionMessage'] = $message;
        $a_result['Items'] = null;
        while ($my_result = mysql_fetch_object($query)) {
            $a_result['Items'][] = $my_result;
        }
        
        $test = $a_result['Items'];
        foreach ($test as $v1) {
            foreach ($v1 as $v2) {
                $v2 = html_entity_decode($v2, ENT_QUOTES, "utf-8") . "\n";
// Here should be code to get the $v2 inside the object again.....                
            }
        }
}
    $a_result = json_encode($a_result);
    return $a_result;
}

$a_result['Items'] looks like this:

Array
(
    [0] => stdClass Object
        (
            [idziekmeldingen] => 1
            [meldingID] => 13190
            [title] => Ziekmelding: Alex
            [published] => 2011-05-09
            [updated] => 2011-05-09
            [content] => Per 9-05-2011 heeft Alex zich ziek gemeld.
            [location] => AP
            [institute] => CMI
            [lastCron] => 2011-05-11 11:32:54
        )

    [1] => stdClass Object
        (
            [idziekmeldingen] => 2
            [meldingID] => 12933
            [title] => Ziekmelding: Rimmert
            [published] => 2011-04-26
            [updated] => 2011-04-26
            [content] => Per 26-04-2011 heeft Rimmer zich ziek gemeld.Met vriendelijke groet,Luciënne
            [location] => AP
            [institute] => CMI
            [lastCron] => 2011-05-11 11:32:54
        )
)

Upvotes: 9

Views: 16455

Answers (4)

Roc
Roc

Reputation: 31

You also can use these two ways for the same result.

Solution 1:

foreach($myobject as $k1 => &$v1) {
  if($condition == true) {
    $v1 = $newvalue;
  }
}

Solution 2:

foreach($myobject as $k1 => $v1) { // here, no matter $v1 or &$v1
  if ($condition == true) {
    $myobject->{$k1} = $newvalue;
  }
}

Upvotes: 3

Spudley
Spudley

Reputation: 168685

Use the & symbol to pass the variables into the loop by-reference. This will mean you're modifying the actual variable rather than a copy of it.

foreach ($test as &$v1) {
    foreach ($v1 as &$v2) {
        $v2 = html_entity_decode($v2, ENT_QUOTES, "utf-8") . "\n";               
    }
}

(note, this only works in PHP 5.0 and up.... but if you're still using PHP4, you really need to upgrade!)

Upvotes: 18

user235064
user235064

Reputation:

try this:

foreach($test as &$v){
    foreach($v as &$v2)
        // change value here ($v=....)
}

PHP References

Upvotes: 1

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 798566

From the docs:

As of PHP 5, you can easily modify array's elements by preceding $value with &. This will assign reference instead of copying the value.

Use references and assign into the current value.

Upvotes: 5

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