ArrayObject::offsetSet
When traversing recursively nested arrays using an RecursiveIteratorIterator, you cannot offsetUnset() or offsetSet() sub-array values, unless they are *all* declared as ArrayObject.
ArrayObject::offsetUnset
(PHP 5)
ArrayObject::offsetUnset — Efface la valeur à l'$index spécifié
Description
Avertissement
Cette fonction n'est pas documentée et seule la liste des arguments est disponible.
Efface la valeur à l'$index spécifié.
Liste de paramètres
- index
-
L'index à effacer.
Valeurs de retour
Aucune valeur n'est retournée.
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User Contributed NotesArrayObject::offsetUnset
pvenakis at efront dot gr
10-Jan-2008 09:57
10-Jan-2008 09:57
oalexandrino at yahoo dot com dot br
28-May-2007 08:11
28-May-2007 08:11
Be careful when you are working with collections. This method works with the reference of an array instead of its retrieved value.
So, you can do a mistake.
In order to understand have a look at code as follow:
<?php
class Employee
{
public function __construct()
{
}
}
class Company
{
private $arrEmployee;
public function __construct()
{
}
public function AddEmployee(Employee $oEmployee)
{
$this->arrEmployee[] = $oEmployee;
}
public function getEmployeeList()
{
return $this->arrEmployee;
}
}
?>
<?php
// first, creates the Company object
$oCompany = new Company();
// second, add 10 elements in
foreach( range(0, 9) as $index )
{
$oCompany->AddEmployee( new Employee() );
}
// get them
$arrEmployee = $oCompany->getEmployeeList();
// creates an ArrayObject from "$arrEmployee"
$arrayobject = new ArrayObject($arrEmployee);
// unsets its firt five elements
foreach( range(0, 4) as $index )
{
$arrayobject->offsetUnset($index);
}
// get them again
$arrEmployee = $oCompany->getEmployeeList();
// it shows just 5 elements, they were removed as reference via "offsetUnset" method
print_r($arrEmployee) ;
?>