PHP 反序列化 - 索引错误
我在使用 PHP serialize 和 unserialize 函数时遇到一些困难。我正在使用 serialize(array) 将数组插入 MySQL DB。这是我在数据库中的值
a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}
如果我这样做，
$images = unserialize( $apartment->images );
我会得到错误：ErrorException [Notice]：unserialize() [function.unserialize]：Error at offset 9 of 208 bytes。 $apartment 是我的 DB ORM 对象，如果我执行 echo $apartment->images 之类的操作，它将向我输出上面的序列化字符串。
但如果我做这样的事情
$images = unserialize( 'a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}' );
它会起作用......嗯？ $apartment->images 的 var_dump() 返回
string(208) "a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}"
I am having some difficulties with PHP serialize and unserialize functions. I am inserting array into MySQL DB with serialize(array). This is my value in DB
a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}
If I do something like this
$images = unserialize( $apartment->images );
I will get error: ErrorException [ Notice ]: unserialize() [function.unserialize]: Error at offset 9 of 208 bytes. $apartment is my DB ORM object and if I do something like echo $apartment->images it will output me the above serialized string.
But if I do something like this
$images = unserialize( 'a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}' );
It will work... Huh? var_dump() of $apartment->images returns
string(208) "a:4:{i:0;s:29:"k44L1b_bisnode.com.xlarge.png";i:1;s:28:"q44L1b_bisnode.com.large.png";i:2;s:29:"q44L1b_bisnode.com.medium.png";i:3;s:28:"q44L1b_bisnode.com.small.png";}"
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来自 FuelPHP 的一个人注意到了这个 http://docs.fuelphp.com/general/views .html#/security 所以这是我的问题。
安全
默认情况下，视图使用输出编码来清理您使用 Security::htmlentities() 传递给它们的任何内容。如果你想传递未经过滤的内容，可以使用方法 set($name, $value, false)。
A guy from FuelPHP noted on this http://docs.fuelphp.com/general/views.html#/security so this was my issue.
Security
By default, Views use output encoding to sanitize anything you pass to them using Security::htmlentities(). If you want to pass something unfiltered, you can use the method set($name, $value, false).