What are the uses of __toString
in PHP?
For example I have a function such as (inside a class called person)
public function __construct($id, $name) {
$this->id = $id;
$this->name= $name;
}
and
$person= new person("12","James");
$person->setDescription("Test Description");
$person->setImage("Test Image");
How can I use __toString
to grab this data and print them on one line.
For example: 12 Test Description James Test Image
The __toString()
method is used if you try to echo an object instance rather than simply properties of that object. Normally that would throw an exception, but the to_string method defines a response
class person{
public function __construct($id, $name) {
$this->id = $id;
$this->name= $name;
}
public function __toString() {
return $this->id . ' ' . $this->name;
}
}
$person= new person("12","James");
echo $person;
The __toString()
returns the value that will be echoed
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