Run string as static class function in Yii2

Question

I'm receiving prepared function as strings like these:

"\app\models\AddrModel::getText('A_00001724');"

Now I need to convert and run this string as static function call, to retrieve the value if the A_00001724 id.

How do I do that?

PS: When I call it as $value = new $function; I get

Class '\app\models\AddrModel::getText('A_00001724')' not found

since it's not just class. It`s static function with class :/

What about $value = eval( 'return '."\app\models\AddrModel::getText('A_00001724');" ) ? — Mat
– Mat, Commented Jun 5, 2015 at 15:45
@Mat I checked the docs, eval doesn't return any value, so this wont work for me. — Peon
– Peon, Commented Jun 5, 2015 at 15:52
eval does return a value if the evalued code returns a value. My test case is : $func = "sprintf('%s %s', 'hello', 'world');"; $value = eval('return '.$func); print_r($value); // echo "hello world" — Mat
– Mat, Commented Jun 5, 2015 at 15:53
Yes, thank you. I also found the same solution: $value = eval('return '.$function.';');. You should put it as answer, so I can accept it. — Peon
– Peon, Commented Jun 5, 2015 at 15:55
just notice that eval is a bit risky in some cases so make sure the $function value is being checked and validated prior to usage. — Ofir Baruch
– Ofir Baruch, Commented Jun 5, 2015 at 15:56

Mat · Accepted Answer · 2015-06-05 15:58:57Z

2

eval() can be used to execute php code in a string. Eval() returns a value if the executed code returns a value.

So, in the case above :

$func = "\app\models\AddrModel::getText('A_00001724');";
$value = eval('return ' . $func);
print_r($value);

answered Jun 5, 2015 at 15:58

Mat

2,1741 gold badge18 silver badges21 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

it is needless to say that eval is a very bad Idea, and perhaps you should change your approach in solving your problem