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PHP | reset() Function

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  • Last Updated : 08 Mar, 2018

The reset() function is an inbuilt function in PHP.

  • This function is used to move any array’s internal pointer to the first element of that array.
  • While working with arrays, it may happen that we modify the internal pointer of an array using different functions like prev() function, current() function, key() function etc.
  • The reset() function resets the internal pointer to point to the first element of the array.



Parameters: This function accepts a single parameter $array. It is the array for which we want to reset the internal pointer to point to the first element again.

Return Value: It returns the first element of the array on success, or FALSE if the array is empty i.e, the array does not contain any element.

Below programs illustrate the reset() function in PHP:

Program 1:

// input array
$arr = array('Ram', 'Rahim', 'Geeta', 'Shita');
// here reset() function Moves the internal pointer to the
// first element of the array, which is Ram and also returns
// the first element
$res = reset($arr);
print "$res";



Program 2:

// Input array
$arr = array('Delhi', 'Kolkata', 'London');
// getting current element using current()
// function
print current($arr)."\n";
// move internal pointer to next element
print current($arr)."\n";
// now reset() is called so that the internal pointer 
// moves to the first element again i.e, Delhi.
print current($arr);




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