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<?php $xml = new \SimpleXMLElement('<foo>aaa</foo>'); var_dump(++$xml[0]); $xml = new \SimpleXMLElement('<foo>aaa</foo>'); var_dump(--$xml[0]);
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
int(1) int(-1)
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30
Fatal error: Uncaught TypeError: Cannot increment SimpleXMLElement in /in/DVmtc:4 Stack trace: #0 {main} thrown in /in/DVmtc on line 4
Process exited with code 255.
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61.9 ms | 982 KiB | 4 Q