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PHP ArrayObject setFlags() Function

Last Updated : 03 Apr, 2023
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The ArrayObject::setFlags() function is an inbuilt function in PHP that is used to set the flag to change the behavior of the ArrayObject. 

Syntax:

void ArrayObject::setFlags( int $flags )

Parameters: This function accepts single parameter $flags which hold the behavior of new ArrayObject. This parameter holds either a bitmask or named constants. 

Return Value: This function does not return any value. 

Below examples illustrate the ArrayObject::setFlags() function in PHP: 

Example 1: 

php 
<?php 
// PHP program to illustrate the 
// ArrayObject::setFlags() function 

// Declare an array and convert
// it into array object
$arrObject = new ArrayObject(
    array('Geeks', 'for', 'Geeks')
); 

// Use ArrayObject::getFlags() function
// to get the behavior of flags
$flag = $arrObject->getFlags(); 

var_dump($flag); 

// Set a new flags
$arrObject->setFlags(ArrayObject::ARRAY_AS_PROPS);

// Use ArrayObject::getFlags() function
// to get the behavior of flags
$flag = $arrObject->getFlags(); 

var_dump($flag); 

?>
Output:
int(0)
int(2)

Example 2: 

php 
<?php 
// PHP program to illustrate the 
// ArrayObject::setFlags() function 

// Declare an associative array
$arr = array(
    "a" => "Welcome",
    "b" => "to", 
    "c" => "GeeksforGeeks"
); 

// Create array object 
$arrObject = new ArrayObject($arr); 

// Use ArrayObject::getFlags() function
// to get the behavior of flags
$flag = $arrObject->getFlags(); 

var_dump($flag); 

// Set a new flags
$arrObject->setFlags(ArrayObject::STD_PROP_LIST);

// Use ArrayObject::getFlags() function
// to get the behavior of flags
$flag = $arrObject->getFlags(); 

var_dump($flag); 

?>
Output:
int(0)
int(1)

Reference: https://www.php.net/manual/en/arrayobject.setflags.php


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