Php class to Array/Json and back

Question

I am currently playing a little bit with PHP and tried to find a way to convert a class to data I can save in a database ( array / JSON / key value ).

Till that it seems quite easy to use get_obj_vars or cast to array. But later I want to load the data from the database and convert it back to the class I had before so I can continue to work with the data in class format.

Example :

class TestClass {
    private $name;
    private $number;
    private $testClass2;
    /* getter + setter */
}

class TestClass2 {
    private $name;
    private $number;
    /* getter + setter */
}

$testclass = new TestClass();
$testclass2 = new TestClass2();
$testclass2->setName("Class2");
$testclass2->setNumber(42);

$testclass->setName("MyName");
$testclass->setNumber(23);
$testclass->setTestClass2($testclass2);

Now I want to convert $testclass to something I can save in the database in a "key-value-table". After that I want to recreate the class with the given data from database.

If at least part of it "seems quite easy", what have you tried? — user1425689
– user1425689, Commented Jul 25, 2016 at 8:56

Community · Accepted Answer · 2017-05-23 11:51:29Z

1

I think what you're looking for is how to serialize and unserialize data in PHP.

Try looking at: How to use php serialize() and unserialize()

edited May 23, 2017 at 11:51

CommunityBot

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answered Jul 25, 2016 at 8:49

Albert Rannetsperger

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3 Comments

Ephenodrom Over a year ago

Yeah this looks great. Is there a way where I can define the return type of the unserialize method ? So my IDE can autofill the method names :).

Albert Rannetsperger Over a year ago

Not sure if your IDE supports it -- you'd have to check the docs. Usually in IntelliJ (PHP Storm) return types are specified using the @return annotation in the doc block. By specifying the correct type the IDE should pick-up the correct class methods to auto-complete. Hope that helps!

Ephenodrom Over a year ago

Yeah of course I can add the @return annotation. But thats static, i would like to dynamically define the return type. If I unserialize CLASS A i want to define the return type to be CLASS A. If i unserialize CLASS B i want to define the return type to be CLASS B. Otherwise i have to define for each class a method with the equivalent return type.

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