php中遍历关联数组的方法 -凯发ag旗舰厅登录网址下载

下面介绍php中遍历关联数组的三种方法：
foreach

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

程序运行结果：
football: good
swimming: very well
running: not good
 
each

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

程序运行结果：
football: good
swimming: very well
running: not good
 
list & each

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

程序运行结果：
football: good
swimming: very well
running: not good
 

转载于:https://www.cnblogs.com/lanzhi/p/6467756.html

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