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<?php $publisher = 'EPOMNAT_21189'; echo explode('_', publisher);
Output for 7.2.0
Warning: Use of undefined constant publisher - assumed 'publisher' (this will throw an Error in a future version of PHP) in /in/A1Ap8 on line 5 Notice: Array to string conversion in /in/A1Ap8 on line 5 Array
Output for 5.4.11 - 7.1.10
Notice: Use of undefined constant publisher - assumed 'publisher' in /in/A1Ap8 on line 5 Notice: Array to string conversion in /in/A1Ap8 on line 5 Array
Output for 5.3.21 - 5.3.29
Notice: Use of undefined constant publisher - assumed 'publisher' in /in/A1Ap8 on line 5 Array