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ArrayObject uasort () function in PHP

Syntax :
void uasort ($comparator)
Parameters : This function takes one parameter $a comparator, which is a user-defined comparison function. This comparison function, in turn, takes two arguments that are ArrayObject values ​​and returns less than, equal to, or greater than zero if the first argument is less than, equal, or greater than zero, respectively.Return value : This function does not return any value.The program below illustrates the above function:
// PHP illustration program
// uasort() function $arr = array ( "Welcome" = > "1" , "to" = & gt; "2" , "GfG" = > "3" );  
// Create array object $arrObject = new ArrayObject ( $arr );  
// Declare the comparison function for sorting // values ​​in descending order function comparison ( $val1 , $val2 ) { if ( $val1 == $val2 ) { return 0; } else if ( $val1 > $val2 ) return - 1; else return 1; } $arrObject -> uasort ( ’comparison’ );  
// Print the sorted ArrayObject print_r ( $arrObject );  
?>
Exit:
ArrayObject Object ( [storage: ArrayObject: private] = > Array ([GfG] = > 3 [to] = > 2 [Welcome] = > 1))
Link: http://php.net/manual/en/arrayobject.uasort.php

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