Online PHP editor | refs for 9TLCR

<?php class Foo { public $pos = 0; public $str; public function __construct($str) { $this->str = $str; $this->current = $this->lookAhead(); } function isLineBreak() { if ("\r" !== $this->current && "\n" !== $this->current) { return false; } $char = $this->current; do { $brk = ("\n" === $char); $char = $this->lookAhead(); switch ($char) { case " ": return false; case "\n": if ($brk) { return true; } break; default: return $brk; } } while (true); } function lookAhead() { return mb_strcut($this->str, $this->pos++, 1); } } function crlf($str) { $foo = new Foo($str); return $foo->isLineBreak(); } var_dump(crlf("\r\n"));