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run code in 500+ PHP versions simultaneously
<?php class myXMLReader extends XMLReader { } $r1 = myXMLReader::XML('foo'); var_dump(get_debug_type($r1)); $r2 = new myXMLReader; $r2->XML('foo'); var_dump(get_debug_type($r2));
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
string(9) "XMLReader" string(11) "myXMLReader"

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