3v4l.org

run code in 300+ PHP versions simultaneously
<?php Console.WriteLine(); int number=Convert.ToInt32(Console.ReadLine()); int a=1; Console.Write("{0}",a) int b=1; Console.Write("{1}",b) int s=0; while (number>=s) { s=a+b; Console.Write("{0}",s); a=b; b=s; }
Output for 5.6.0 - 5.6.27, 7.0.0 - 7.0.13
Parse error: syntax error, unexpected 'number' (T_STRING) in /in/5th7v on line 4
Process exited with code 255.
preferences:
181.2 ms | 1395 KiB | 49 Q