Databases
StackOverflow2013
Postsdbo
POHow to automaticly build variables from array?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to automaticly build variables from array?
    primarykey
    data
    text
    <p>I would like to instanciate a class, that takes any number of consturctor params.</p> <p>Lets say I have a class Man, that takes two arguments in constructor.</p> <pre><code>class Man { protected $name; protected $age; public function __construct($name, $age) { $this-&gt;name = $name; $this-&gt;age = $age; } } </code></pre> <p>Then I have params:</p> <pre><code>$params = array() $params['name'] = 'Jack'; $params['age'] = 55; </code></pre> <p>And this is how I instanciate a class:</p> <pre><code>$jack = new Man($params['name'], $params['age']); </code></pre> <p>Now what I would like to achive is that params array can be of any size, 2, 3, 4, any, and class I would instanciate would have the same number of params.</p> <p>So the only thing bothering me is how can I create variables automaticly? There is extract function but it returns the number of variables :(</p> <p>I would need something this:</p> <pre><code>$jack = new Man($name, $age); </code></pre> <p>But this should be created automaticly. The script is only aware of the params array, and it needs to push all array values as variables.</p> <p>The closest thing would be this:</p> <pre><code>$jack = new Man(extract($params)); </code></pre> <p>But extract function returns number, and i need to create variables from array, and give them to the class constructor.</p> <p>Edit:</p> <p>I cant change the class Im building, my only goal is to construct that class, and pass variables it expects in constructor. So I have no power over the class Im building, my goal is to only instanciate that class, and gave her consturctor params. Those params are stored in $params array, but the class needs it as variables. Hope its easier to grasp what Im trying to achive.</p> <p>Thanks</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USLimeni
    1. USLimeni
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to automaticly build variables from array?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POHow to automaticly build variables from array?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POHow to automaticly build variables from array?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COwhy not pass the array to the constructor?
      singulars
      1. POHow to automaticly build variables from array?
      1. USJvdBerg
    2. COIm trying building Dependency Injection Container, so that container would instanciate a class not built by me. And if that class expects 2 variables in constructor than I must put them there. So I can "tell" container that there is a class that needs 2 params in construct. And that those two params are in $params array. Now :) how would I push those variables that are in $params array, as variables.
      singulars
      1. POHow to automaticly build variables from array?
      1. USLimeni
    3. COUpdated my answer to include a possible function to allow for you to extract the parameters without modifying the class.
      singulars
      1. POHow to automaticly build variables from array?
      1. USRMDan
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload