I would like to loop through the contents of a query object update certain values and return the object.
function clearAllIds($queryObject)
{
foreach($queryObject->result() as $row)
{
$row->id = 0;
}
return $queryObject
}
In this example I would like to zero out all of the ID values. How can I accomplish this within the foreach loop?
Please excuse the formatting.
This entirely depends on what the class of your query object is, and whether or not you'll be able to Pass by reference.
Assuming your $queryObject->result() can be delivered in a write-context, you could preface the $row with an ampersand to pass it by reference, like so:
foreach($queryObject->result() as &$row)
{
$row->id = 0;
}
function clearAllIds($queryObject)
{
foreach($queryObject->result() as &$row)
{
$row->id = 0;
}
return $queryObject
}
Use the & operator to get $row as a reference.
Edit: This will work if $queryObject is an array. You should probably do
$data = $queryObject->result();
foreach($data as &$row) { ... }
return $data;
function trim_spaces($object)
{
foreach (get_object_vars($object) as $property=> $value)
{
$object->$property=trim($value);
}
}
//no need to return object as they are passed by reference by default
Related
How can I retrieve a data from my database in the controller, and assign it to a variable, that I will send to the view?
$data['schedule'] = $this->SectionsModel->getschedule($section);
I want the
$schedule['teacher']
(as equivalent to a view) data from the statement above to be passed to a variable, but how?
I tried this one but it shows an error
$data['schedule'] = $this->SectionsModel->getschedule($section);
foreach ($data['schedule'] as $key => $value){
echo $value['teacher'];
}
may be you can use result_array() in return value of your model.
Check your getschedule() method in your SectionModel if it's using the function result() instead of result_array().
The difference between the two methods is that result() will return object while result_array() will return array.
In you case,
$data['schedule'] = $this->SectionsModel->getschedule($section);
foreach ($data['schedule'] as $key => $value){
echo $value['teacher'];
}
Maybe $data['schedule'] is an object.You must use,
$data['schedule'] = $this->SectionsModel->getschedule($section);
foreach ($data['schedule'] as $key => $value){
echo $value->teacher;
}
If you will use result_array() method in your getschedule() in SectionModel to return result, do like this,
$data['schedule'] = $this->SectionsModel->getschedule($section);
foreach ($data['schedule'] as $key => $value){
echo $value['teacher'];
}
Hope this will help.
I've got a PHP object. One of the values within the object is in array. I'm trying to get a foreach to just read the array within the object but it doesn't seem to be working.
PHP:
foreach ($object->ArrayName as $value) {
echo $value;
}
is there any way of doing this?
well, if you have an object but you don't know which property is an array, you need to catch them all and verify if they are an array:
// get each value of the object and call it as property
foreach(get_object_vars($object) as $property) {
// if this property is an array...
if (is_array($property) {
// ... access to every value of that array
foreach($property as $value) {
// $property is your array and $value is every value
// here you can execute what you need
}
}
}
Use
is_array($obj)
to validate whether it's an array or not.
you said your php object contains arrays, hence you need to use 2 foreach loops like this.
<?php
foreach($object->ArrayName as $value) {
foreach($value as $item) {
echo $item;
}
}
?>
if the loop is withing the object wich mean inside the class use $this instead :
foreach ($this->ArrayName as $value) {
echo $value;
}
I'm looping through an object:
foreach ($data as $asset) {
$asset->test = 'test';
}
test exists in $data and is set to something else, I wish to replace it with 'test'.
The above fails to work. Where am I going wrong?
You should use referenced loop with & like foreach ($data as &$asset)
foreach ($data as &$asset)
{
$asset->test = 'test';
}
Referenced loop will have an effect to $data, otherwise only current $asset object changes.
You can think about using a function that already exists, like array_walk that would execute your function.
function test_exists(&$asset) {
$asset->test = "test";
}
array_walk($data, "test_exists");
I have a question about a recursive PHP function.
I have an array of ID’s and a function, returning an array of „child id’s“ for the given id.
public function getChildId($id) {
…
//do some stuff in db
…
return childids;
}
One childid can have childids, too!
Now, I want to have an recursive function, collecting all the childids.
I have an array with ids like this:
$myIds = array("1111“,"2222“,"3333“,“4444“,…);
and a funktion:
function getAll($myIds) {
}
What I want: I want an array, containing all the id’s (including an unknown level of childids) on the same level of my array. As long as the getChildId($id)-function is returning ID’s…
I started with my function like this:
function getAll($myIds) {
$allIds = $myIds;
foreach($myIds as $mId) {
$childids = getChildId($mId);
foreach($childids as $sId) {
array_push($allIds, $sId);
//here is my problem.
//what do I have to do, to make this function rekursive to
//search for all the childids?
}
}
return $allIds;
}
I tried a lot of things, but nothing worked. Can you help me?
Assuming a flat array as in your example, you simply need to call a function that checks each array element to determine if its an array. If it is, the function calls it itself, if not the array element is appended to a result array. Here's an example:
$foo = array(1,2,3,
array(4,5,
array(6,7,
array(8,9,10)
)
),
11,12
);
$bar = array();
recurse($foo,$bar);
function recurse($a,&$bar){
foreach($a as $e){
if(is_array($e)){
recurse($e,$bar);
}else{
$bar[] = $e;
}
}
}
var_dump($bar);
DEMO
I think this code should do the trick
function getAll($myIds) {
$allIds = Array();
foreach($myIds as $mId) {
array_push($allIds, $mId);
$subids = getSubId($mId);
foreach($subids as $sId) {
$nestedIds = getAll($sId);
$allIds = array_merge($allIds, $nestedIds);
}
}
return $allIds;
}
I used zendframwork, this is my code in controller
$getRows = $this->MgGeneral->select();
foreach($getRows as $value) {
var_dump($value);
}
i want send $getRow to view but it's in object (array in array), so what i need pass to view true is $value that i var_dump it's show
So how i can pass $value to view ?
In your controller, just pass the value to:
$this->view->yourVariable = $yourValue;
In your view, you can access the value like this:
var_dump($this->yourVariable); /* you'll get $yourValue */
Bring to your code:
$getRows = $this->MgGeneral->select();
foreach($getRows as $value) {
$this->view->value[] = $value;
};
Thanks to #Harry
by your answer now i get correct by
$passtoview = array();
$getRows = $this->MgGeneral->select();
foreach($getRows as $value) {
$passtoview[] = $value;
};
var_dump($passtoview);
In your controller do:
$this->view->value = $value;
and in the view you can get it by doing:
$this->value;