PHP中数组遍历

<?php


$arr = array("a" => "apple","b" => "banana");


foreach($arr as $key => $val) {
echo "arr" . "[$key] = $val<br/>";
}

?>

$stu['id'] = 1000;
	$stu['name'] = 'abc';
	$stu['age'] = 120;

	while($element = each($stu)){
		echo $element['key'];
		echo $element['value'];
	}