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run code in 300+ PHP versions simultaneously
<?php for ($i=0; $i<10; ++$i) { $reader = new XMLReader(); $reader->xml('<?xml version="1.0" encoding="utf-8"?><id>1234567890</id>'); while ($reader->read()) { } echo memory_get_peak_usage(true) . PHP_EOL; }

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40.98 ms | 402 KiB | 5 Q