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run code in 300+ PHP versions simultaneously
<?php $string = "James said hello\n\n\n\n Test\n Test two\n\n"; echo json_encode( preg_replace("/\n{2,}/", "\n", $string) ); echo "\n---\n"; $string = "James\r\n said\n\r\n hello\r\n\r\n\r\n Test\n Test two\n\n"; echo json_encode( preg_replace("/\R{2,}/", PHP_EOL, $string) );
Output for git.master, git.master_jit, rfc.property-hooks
"James said hello\n Test\n Test two\n" --- "James\r\n said\n hello\n Test\n Test two\n"

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