php variable variables to access property of an object

Question

I want to store an property->object name in a table and access in code.

What is the proper way to accomplish the following.

$patient = new stdClass();
$patient->patient_number = '12345';

$cls = 'patient';
$prp = 'patient_number';



echo 'test1 = ' . $patient->patient_number . '<br>';    
//--- this prints 12345 as expected;
echo 'test2 = ' . $$cls->patient_number . '<br>';
//--- this print 12345 as expected;
echo 'test3 = ' . $$cls->${$prp} . '<br>';
//--- this generates undefined variable patient_number;

And what is your problem/ question now? Just do: $$cls->$prp — Rizier123
– Rizier123, Commented Aug 27, 2015 at 19:40

Alvaro Gonzalez · Accepted Answer · 2015-08-27 19:42:13Z

0

Use this:

echo 'test3 = ' . ${$cls}->{$prp} . '<br>';

answered Aug 27, 2015 at 19:42

Alvaro Gonzalez

1818 bronze badges

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

1 Comment

Ken Roberts Over a year ago

Thanks so much. I just couldn't get the right syntax.

Collectives™ on Stack Overflow

php variable variables to access property of an object

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related