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run code in 300+ PHP versions simultaneously
<?php class MyStream { public function stream_open() { return true; } public function stream_read() { throw new Exception('boo!'); return 42; } public function stream_eof() { return true; } } stream_wrapper_register("my", "MyStream"); $fp = fopen('my://foobar', 'r+'); fread($fp, 512);

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56.47 ms | 402 KiB | 5 Q