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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 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.14, 8.4.16 - 8.4.17, 8.5.0 - 8.5.2
"James said hello\n Test\n Test two\n" --- "James\r\n said\n hello\n Test\n Test two\n"
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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