PHP 7.2.25 Released

Ds\Vector::first

(PECL ds >= 1.0.0)

Ds\Vector::firstReturns the first value in the vector

Descrierea

public Ds\Vector::first ( void ) : mixed

Returns the first value in the vector.

Parametri

Această funcție nu are parametri.

Valorile întoarse

The first value in the vector.

Erori/Excepții

UnderflowException if empty.

Exemple

Example #1 Ds\Vector::first() example

<?php
$vector 
= new \Ds\Vector([123]);
var_dump($vector->first());
?>

Exemplul de mai sus va afișa ceva similar cu:

int(1)
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