blocks|key|1345802|text|您可以将其保存到一个临时文件，如temp.file，然后执行include('temp.file');|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1345803|entityMap^0|G|9|U|L|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

you could save it to a temporary file like <code>temp.file</code> and then do an <code>include('temp.file');</code>

blocks|key|3567471|text|看看eval()+--这就是你要找的东西(但我同意菲尔的观点，这听起来是个糟糕的做法)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3567472|编辑：刚刚看到你知道eval+-所以你为什么不这样做：|style|BOLD|3567473|eval('$string+=+"'.load_data_from_db().'";');|code-block|syntax|javascript|3567474|(我还没有测试过，但我几乎可以肯定它是有效的)|3567475|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/de/function.eval.php^0|2|6|0|0|0|3|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@$A|11|B|12|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|13|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|14|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

take a look at <a href="http://php.net/manual/de/function.eval.php" rel="nofollow noreferrer">eval()</a> - this is what you are looking for (but i agree with phill, this sounds like bad practice)

EDIT: just seen that you know eval - so why don't you do this:

<pre><code>eval('$string = "'.load_data_from_db().'";');
</code></pre>

(haven't tested this, but i'm almost sure it works)

blocks|key|597161|text|数据库用于存储数据，而不是代码。您应该使您的代码成为动态的，以便从数据库/用户输入中读取数据，但不建议将代码存储在数据库中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|597162|为什么不将值"lux“存储在数据库表中。|597163|这样试试：|597164|class+A+{
++++private+$name;

++++public+function+getName()+{
++++++++return+$this->name;
++++}

++++public+function+setName($name)+{
++++++++$this->name+=+$name;
++++}
}
//+Query+DB
//+Don't+know+your+query+so+just+using+what+you+have
$passed_name+=+load_data_from_db();+//+This+would+return+"lux"

//+instantiates+a+new+A
$a+=+new+A();
$a->setName($passed_name);
echo+"hello+".$a->getName().",+how+are+you+?<br+/>\n";|code-block|syntax|javascript|597165|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

A database is used to store data NOT code. You should make your code dynamic to read data from the database/user input but storing code in a database is not recommended.

Why not store the value "lux" in a database table.

Try it this way:

<pre><code>class A {
 private $name;

 public function getName() {
 return $this-&gt;name;
 }

 public function setName($name) {
 $this-&gt;name = $name;
 }
}
// Query DB
// Don't know your query so just using what you have
$passed_name = load_data_from_db(); // This would return "lux"

// instantiates a new A
$a = new A();
$a-&gt;setName($passed_name);
echo "hello ".$a-&gt;getName().", how are you ?&lt;br /&gt;\n";
</code></pre>

blocks|key|3567537|text|看起来你正在尝试做一些像多语言字符串这样的事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3567538|有一种使用sprintf的很好的方法|offset|length|3567539|你放在数据库里面|3567540|"hello+%25s,+how+are+you+?"|code-block|syntax|javascript|3567541|在你的php代码中你可以这样做。|3567542|$string+=+load_data_from_db();
echo+sprintf($string,$a->getName());+//+replaces+%25s+with+the+function+value.|3567543|更改的部分($a->getName())也应该来自数据库，但有单独的查询(可能在A类中)|3567544|entityMap|0|LINK|mutability|MUTABLE|url|http://ee.php.net/manual/en/function.sprintf.php^0|0|5|7|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|F|3|G|5|6|7|15|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|17|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

Seems like you are trying to do something like multilanguage strings. 

There is a one nifty approach using <a href="http://ee.php.net/manual/en/function.sprintf.php" rel="nofollow noreferrer">sprintf</a>

Inside DB you put 

<pre><code>"hello %s, how are you ?"
</code></pre>

and in your php code you do 

<pre><code>$string = load_data_from_db();
echo sprintf($string,$a-&gt;getName()); // replaces %s with the function value.
</code></pre>

the changing part ($a->getName()) should come from database too but with separate query (maybe in class A)

I want to store php code inside my database and then use it into my script.

<pre><code>class A {
 public function getName() {
 return "lux";
 }
}
// instantiates a new A
$a = new A();
</code></pre>

Inside my database there is data like 

<pre><code>"hello {$a-&gt;getName()}, how are you ?"
</code></pre>

In my php code I load the data into a variable $string

<pre><code>$string = load_data_from_db();
echo $string; // echoes hello {$a-&gt;getName()}, how are you ?
</code></pre>

So now $string contains "hello {$a->getName()}, how are you ?"

{$a->getName()} still being un-interpretated

Question: I can't find how to write the rest of the code so that {$a->getName()} gets interpretated "into hello lux, how are you". Can someone help ?

<pre><code>$new_string = ??????
echo $new_string; //echoes hello lux, how are you ?
</code></pre>

Is there a solution with eval() ? (please no debate about evil eval ;)) Or any other solution ?

How to inject php code from database into php script?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想将php代码存储在我的数据库中，然后将其用于我的脚本中。class A {    public function getName() {        return "lux";    }}// instantiates a new A$a = new A();在我的数据库中有这样的数据"hello {$a->ge...

问如何将数据库中的php代码注入php脚本？
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问如何将数据库中的php代码注入php脚本？EN