php数组跟字符串的相互转换,数据结构不变
php数组和字符串的相互转换,数据结构不变
一个描述 PHP 数据的函数。返回值是一个字符串。有的时候为了把一些数据转为字符串存起来,但是希望保持数据原来有结构和内容。就要用到这个函数。
$a=array('data'=>"hi", 123);
$b=serialize($a);//对数组进行序列化
echo $b;? //这个就是描述过的数组但在这里是一个字符串而已
$c=unserialize($b); //把描述过的数据恢复(反序列化)
print_r($c);?? //还原成为 $a ,数组结构并没有丢失。

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