PHP 数组处理使用foreach、list、each等三个函数详解

本文介绍PHP中遍历数组的foreach、list、each三个函数的使用方法：

方法1：foreach
$sports = array(
football => good,
swimming => very well,
running => not good);
foreach ($sports as $key => $value) {
echo $key.": ".$value."
";
?>

输出结果：
football: good
swimming: very well
running: not good

方法2：each
$sports = array(
football => good,
swimming => very well,
running => not good);
while ($elem = each($sports)) {
echo $elem[key].": ".$elem[value]."
";
?>

方法3：list & each
$sports = array(
football => good,
swimming => very well,
running => not good);
while (list($key, $value) = each($sports)) {
echo $key.": ".$value."
";
?>