3v4l.org

run code in 300+ PHP versions simultaneously
<?php $whitespace = "\x20\x09\x0a\x0b\x0C\x0d"; $string = "hi".$whitespace."bob : letter v"; echo $string . "\n"; echo preg_replace('/\s\s+|\\f|\\n|\\r|\\t|\\v/', '', $policy);

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32.82 ms | 402 KiB | 5 Q