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<?php
namespace Cocur\Chain\Link;
/**
* First.
*
* @author Florian Eckerstorfer
* @copyright 2015 Florian Eckerstorfer
*/
trait First
{
* Returns the first element of the array.
* @return mixed First element of the array or `false` if the array is empty.
public function first()
// To not change the internal array pointer we invoke reset() in a closure
$reset = function ($array) { return reset($array); };
return $reset($this->array);
array
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
class MyClass { } $x = new MyClass(); $x->foo = true;
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:
class MyClass { public $foo; } $x = new MyClass(); $x->foo = true;
}
cocur /
chain
Florian Eckerstorfer
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: