详解PHP序列化反序列化的方法,详解php序列化反
详解PHP序列化反序列化的方法,详解php序列化反
经常看到一些配置文件里面存放的是一些类似带有格式的变量名称和值,其实就是一个序列化的过程,在需要用到这些数据库的时候会进行一个反序列化过程,就是将这个字符串再还原成他原来的数据结构。下面说说php 如何进行数据的序列化和反序列化的。
php 将数据序列化和反序列化其实就用到两个函数,serialize 和unserialize。
serialize 将数组格式化成有序的字符串
unserialize 将数组还原成数组
例如:
$user=array('Moe','Larry','Curly'); $user=serialize($stooges); echo '<pre class="brush:php;toolbar:false">'; print_r($user); echo '<br />'; print_r(unserialize($user));
结果:
a:3:{i:0;s:3:"Moe";i:1;s:5:"Larry";i:2;s:5:"Curly";} Array ( [0] => Moe [1] => Larry [2] => Curly )
注意当数组值包含如双引号、单引号、冒号或中文等字符时,它们被反序列化后,可能会出现乱码或格式被打乱的问题。
解决乱码问题可以使用base64_encode 和base64_decode 两个函数。
例如:
$user=array('Moe','Larry','Curly'); $user=base64_encode(serialize($user)); $user=unserialize(base64_decode($user));
这样就不会出现乱码类的问题了,但是base64 编码却增加了存储字符串的长度。
由以上我们可以总结出一个自己的序列化和反序列化的函数来,如下:
function my_serialize($obj_array){ return base64_encode(gzcompress(serialize($obj_array))); } //反序列化 function my_unserialize($str){ return unserialize(gzuncompress(base64_decode($str))); }
以上就是告诉大家php是如何进行数据的序列化和反序列化的,并且在遇到反序列化之后,出现乱码或格式被打乱的原因和解决措施,希望本文的介绍对大家的学习有所帮助。

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