PHP | Ds\Vector first() Function
Last Updated :
22 Aug, 2019
The Ds\Vector::first() function is an inbuilt function in PHP which is used to find the first element in the vector.
Syntax:
mixed public Ds\Vector::first( void )
Parameters: This function does not accept any parameter.
Return Value: This function returns the first element present in the vector.
Below programs illustrate the Ds\Vector::first() function in PHP:
Program 1:
<?php
$vector = new \Ds\Vector([1, 2, 3, 4, 5]);
echo ( "First element of the vector: " );
var_dump( $vector ->first());
?>
|
Output:
First element of the vector: int(1)
Program 2:
<?php
$vector = new \Ds\Vector([ "geeks" , "for" , "geeks" ]);
echo ( "First element of the vector: " );
var_dump( $vector ->first());
?>
|
Output:
First element of the vector: string(5) "geeks"
Reference: http://php.net/manual/en/ds-vector.first.php
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