3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input=' Learn More Hide [x] Colors Fetching Colors description... Show more topics Art exhibitions Fetching Art exhibitions description... Abstract art Fetching Abstract art description... Representational art Fetching Representational art description...'; $output = preg_replace('/\s+/', ' ', $input); echo $output; ?>
Output for git.master, git.master_jit, rfc.property-hooks
Learn More Hide [x] Colors Fetching Colors description... Show more topics Art exhibitions Fetching Art exhibitions description... Abstract art Fetching Abstract art description... Representational art Fetching Representational art description...

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