以字符串为key访问key为整数的数组

June 29th, 2009 by sulong Leave a reply »

题目比较拗口，不多说了，看了程序就明白了：

<?php
$b = array(0=>'bbb');
echo $b['0'];
 
$v = array(0=>'bbb', '0'=>'ccc');
echo $v['0'];
?>

程序输出bbbccc。当数组里没有字符串的’0′，有0时，php自动把作为key的’0′转变成了0。

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