PHP遍历关联数组的几种方法

下面介绍PHP中遍历关联数组的三种方法：

foreach

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

程序运行结果：

football: good
swimming: very well
running: not good

each

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

程序运行结果：

football: good
swimming: very well
running: not good

list & each

 'good',
    'swimming' => 'very well',
    'running'  => 'not good'
	);
	
while (list($key, $value) = each($sports)) {
    echo $key.": ".$value."
";
}
?>

程序运行结果：

football: good
swimming: very well
running: not good