PHP | Ds\Sequence shift() Function
Last Updated :
22 Aug, 2019
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The Ds\Sequence::shift() function is an inbuilt function in PHP which is used to removes the first element from the sequence and return it.
Syntax:
php
Output:
php
Output:
mixed abstract public Ds\Sequence::shift ( void )Parameters: This function does not accepts any parameter. Return values: This function returns the first value which is removed from the sequence. Below programs illustrate the Ds\Sequence::shift() function in PHP: Program 1:
<?php
// Create new sequence
$seq = new \Ds\Vector([9, 10, 15, 20]);
// Use shift() function to remove
// first element from sequence
var_dump($seq->shift());
var_dump($seq->shift());
var_dump($seq->shift());
var_dump($seq->shift());
?>
<?php // Create new sequence$seq = new \Ds\Vector([9, 10, 15, 20]);// Use shift() function to remove// first element from sequencevar_dump($seq->shift());var_dump($seq->shift());var_dump($seq->shift());var_dump($seq->shift());?>int(9) int(10) int(15) int(20)Program 2:
<?php
// Create new sequence
$seq = new \Ds\Vector(["Geeks", "for", "Geeks"]);
// Use shift() function to remove
// first element from sequence
var_dump($seq->shift());
var_dump($seq->shift());
var_dump($seq->shift());
?>
<?php // Create new sequence$seq = new \Ds\Vector(["Geeks", "for", "Geeks"]);// Use shift() function to remove// first element from sequencevar_dump($seq->shift());var_dump($seq->shift());var_dump($seq->shift());?>string(5) "Geeks" string(3) "for" string(5) "Geeks"Reference: http://php.net/manual/en/ds-sequence.shift.php
