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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { public $pos = 0; public $str; function __construct($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 true; case "\n": if ($brk) { return false; } break; default: return false; } } while (true); } function lookAhead() { return mb_strcut($this->str, $this->pos++, 1); } } function crlf($str) { $foo = new Foo($str); return $foo->isLineBreak(); } var_dump(crlf("\r\n")); var_dump(crlf("\r\n ")); var_dump(crlf("\r\r\n")); var_dump(crlf("\n\n")); var_dump(crlf("\n\n ")); var_dump(crlf("\r\n\n")); var_dump(crlf("\r\n\n ")); var_dump(crlf("\r\n8")); var_dump(crlf("\n")); var_dump(crlf("\n "));
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(false) bool(true) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(true)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gedMk on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gedMk on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/gedMk on line 5
Process exited with code 255.