<?php
 
$re = "/(\\d{2}.\\d{2}.\\d{2}).+(\\w{3}).+\\w{3}.+(\\w{2}\\s\\d{4}).+(\\d{2}:\\d{2}\\n).+(\\d{2}.\\d{2}.\\d{2}).+(\\w{2}\\s\\d{4}).+(\\d{2}:\\d{2}\\n).+((FNC|PXO)\\d{3})/"; 
$str = "***NEUBUCHUNG ***\n 24.01.15  TXL  FNC  AB 2306  11:40   15:20\n 31.01.15  FNC  TXL  AB 2307  16:05\n FNC044  RESIDENCIAL VILA LUSITANI    9000-120 FUNCHAL\n  1  DOPPELZIMMER                     FRUEHSTUECK\n SPO1101\n INKL. REISELEITUNG UND TRANSFER AB/BIS\n FLUGHAFEN\n F368966  HERR EIDAM, KLAUS               54\n F368966  FRAU EIDAM, SONJA               54"; 
 
$str2 = "***ÄNDERUNG ***\nNEU:11.04.15 DUS  AB 2646  13:15   16:25\n    18.04.15 FNC  DUS  AB 2647  17:15\n   FNC027    PESTANA CARLTON MADEIRA   9004-531 FUNCHAL\n 1  DO-MEERBLICK                       F\nF365474 HERR   PETERS, HANS                                O 03.01.15\nLANGZEITERMÄSSIGUNG 10%\nSPO-JAN_SALES 20%\nFRÜHBUCHER 10%\nINKL. REISELEITUNG UND TRANSFER AB/BIS\nFLUGHAFEN\nZimmer in ruhiger Lage\n(unverbindlicher Kundenwunsch)\nNEU:\nF365474 FRAU   PETERS, ULRIKE                              O 03.01.15"; 
 
echo strpos("I love php, I love php too!","php");
 
?>
// your code goes here

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