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<?php echo stringxor('aze',base64_decode('VA5QA1cCVQgPXwEAXwZVVVsHBgtfUVBaV1QEAwIFVAJWAwBRC1tRVA=='));
based on pqZaG
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function stringxor() in /in/0cnCa:2 Stack trace: #0 {main} thrown in /in/0cnCa on line 2
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Call to undefined function stringxor() in /in/0cnCa on line 2
Process exited with code 255.