Copy a multi-dimentional array by Value (not by reference) in PHP.
- by Simon R
Language: PHP
I have a form which asks users for their educational details, course details and technical details. When the form is submitted the page goes to a different page to run processes on the information and save parts to a database. HOWEVER(!) I then need to return the page back to the original page, where having access to the original post information is needed.
I thought it would be simple to copy (by value) the multi-dimensional (md) $_POST array to $_SESSION['post']
session_start();
$_SESSION['post'] = $_POST;
However this only appears to place the top level of the array into $_SESSION['post'] not doing anything with the children/sub-arrays.
An abbreviated form of the md $_POST array is as follows:
Array
(
[formid] = 2
[edu] = Array
(
['id'] = Array
(
[1] = new_1
[2] = new_2
)
['nameOfInstitution'] = Array
(
[1] = 1
[2] = 2
)
['qualification'] = Array
(
[1] = blah
[2] = blah
)
['grade'] = Array
(
[1] = blah
[2] = blah
)
)
[vID] = 61
[Submit] = Save and Continue
)
If I echo $_SESSION['post']['formid'] it writes "2", and if I echo $_SESSION['post']['edu'] it returns "Array". If I check that edu is an array (is_array($_SESSION['post']['edu])) it returns true. If I echo $_SESSION['post']['edu']['id'] it returns array, but when checked (is_array($_SESSION['post']['edu]['id'])) it returns false and I cannot echo out any of the elements.
How do I successfully copy (by value, not by reference) the whole array (including its children) to an new array?
