<?php
$GLOBALS['taskary'] = array(1 => 1,2,3,4,5);

echo "12345 - expected" . PHP_EOL;
reset($GLOBALS['taskary']);
while ($next = each($GLOBALS['taskary'])) {
    $val = $next['value'];
    echo $val;
    if ($val == 2) {
        unset($GLOBALS['taskary'][2]);
    }
}
echo PHP_EOL;

$GLOBALS['taskary'] = array(1 => 1,2,3,4,5);

// ----
echo "1245 - expected" . PHP_EOL;
reset($GLOBALS['taskary']);
while ($next = each($GLOBALS['taskary'])) {
    $val = $next['value'];
    echo $val;
    if ($val == 2) {
        unset($GLOBALS['taskary'][3]);
    }
}
echo PHP_EOL;

// ----
$GLOBALS['taskary'] = array(1 => 1,2,3,4,5);
echo "12345 - expected" . PHP_EOL;
reset($GLOBALS['taskary']);
do {
    $val = current($GLOBALS['taskary']);
    echo $val;
    if ($val == 2) {
        unset($GLOBALS['taskary'][2]);
    }

} while (next($GLOBALS['taskary']) !== false);
echo PHP_EOL;