3v4l.org

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<?php $sbj = addslashes("<iframe width="100%" height="450" scrolling="no" frameborder="no" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/145834350&amp;auto_play=false&amp;hide_related=false&amp;show_comments=true&amp;show_user=true&amp;show_reposts=false&amp;visual=true"></iframe>");" $ptrn = 'src="([^"]+)'; preg_match($sbj, $ptrn, $match); print_r($match);
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.30, 5.6.7 - 5.6.14
Parse error: syntax error, unexpected '100' (T_LNUMBER) in /in/osVqN on line 3
Process exited with code 255.

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