"line break" is ill-defined:
-- Windows uses CR+LF (\r\n)
-- Linux LF (\n)
-- OSX CR (\r)
Little-known special character:
\R in preg_* matches all three.
preg_match( '/^\R$/', "match\nany\\n\rline\r\nending\r" ); // match any line endings
"line break" is ill-defined:
-- Windows uses CR+LF (\r\n)
-- Linux LF (\n)
-- OSX CR (\r)
Little-known special character:
\R in preg_* matches all three.
preg_match( '/^\R$/', "match\nany\\n\rline\r\nending\r" ); // match any line endings