Multiple Calls to export_wp() Causes Error

[drzaphod]

The "export_wp" function in "wp-admin/includes/export.php" makes use of inner functions that cause a "previously declared" error when this function is called more than once.

These inner functions should be declared outside of the "export_wp" function or guarded by, for example, if(!function_exists('wxr_cdata')){}

I am trying to make use of this function to perform multiple exports per script execution as part of a MU user management system.

<feature request>
It would also be help to have the option of saving the export to a function parameter by reference rather than the screen.
</feature request>

[SergeyBiryukov]

Related: #19864, #22435.

[screamingdev]

Here is a patch with test, that puts the wxr_* function in a separate file.
The export_wp() function requires that file once.

[screamingdev]

Put wxr_* function in separate file

[screamingdev]

Swap wxr_* functions and for testing comments_open needed to be fixed in case of wrong post ID's

[swissspidy]

A few notes on the patch:

• __DIR__ is not available in PHP 5.2
• You're missing the wxr.php file you created in the patch. There's no need for this file though, just add these functions at the bottom of export.php.

[screamingdev]

Swap wxr_* functions within same file out of function and for testing comments_open needed to be fixed in case of wrong post ID's