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@ 2019-05-16T15:42:56Z

<?php

echo $string = "This is \r\n a \r\n test";
echo PHP_EOL;
echo preg_replace('/\s+/', ' ', $string);

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

33.23 ms | 404 KiB | 5 Q