<?php

class Engineer {
	public $name;
	public function __construct($n) {
		$this->name = $n;
	}
}

$engineers = array();
for ($i=0; $i<3; $i++) {
	$engineers[] = new Engineer('BlueCollar'.$i);
}

$ex = $engineers[2];

foreach($engineers as $index=>$hireHim) {
//	echo $hireHim->name . "\n";
	unset($hireHim);
	unset($engineers[$index]);
//	var_dump($hireHim);
}
var_dump($ex);
var_dump($engineers);