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¹®ÀÚ¿­ ÃßÃâÇϱâ (substr)
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¹®ÀÚ¿­À» ÃßÃâÇÑ´Ù´Â °ÍÀº ¾î¶² ¹®ÀÚ¿­ ¼Ó¿¡¼­ À§Ä¡¿Í ±æÀ̸¦ Á¤ÇØÁ־, ±×¿¡ ÇØ´çÇÏ´Â ¹®ÀÚ¸¦ ÃßÃâÇس»´Â °ÍÀÌ´Ù.  
ÀÌ·± ¹®ÀÚ¿­ ÃßÃâÀ» Çϱâ À§ÇØ substrÀ̶ó´Â ÇÔ¼ö¸¦ »ç¿ëÇÏ°Ô µÇ´Âµ¥, Çü½ÄÀº

substr("¹®ÀÚ¿­", ½ÃÀÛÀ§Ä¡, ±æÀÌ)

¿¹¸¦ µé¾î, phpboy¶ó´Â ¹®ÀÚ¿­ÀÌ ÀÖÀ» ¶§, h¸¦ ÃßÃâÇÑ´Ù¸é

substr("phpboy", 1, 1)

----------------------------------------------------------------------
(PHP 4, PHP 5)
string substr ( string $string, int $start[, int $length] )




  

ADMA 2008-08-01 21:04  
string ¹®ÀÚ¿­À» start ¹®ÀÚ¿­¿¡¼­ºÎÅÍ length ±æÀ̸¸Å­ À߶󳽴Ù. start°¡ ¾ç¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº 0ºÎÅÍ ½ÃÀ۵Ǵ stringÀÇ start¹ø° À§Ä¡°¡ ½ÃÀÛÁ¡ÀÌ µÈ´Ù. ±×¸®°í start°¡ À½¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº stringÀÇ ³¡¿¡¼­ºÎÅÍ start¹ø° À§Ä¡°¡ ½ÃÀÛÁ¡ÀÌ µÈ´Ù. ¸¸¾à length°¡ ÁÖ¾îÁö°í ¾ç¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº start¿¡¼­ ½ÃÀÛÇؼ­ length ±æÀ̱îÁöÀÇ ¹®ÀÚ¿­ÀÌ µÉ °ÍÀÌ´Ù. ¹Ý¸é¿¡ length°¡ À½¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº start¿¡¼­ ½ÃÀÛÇؼ­ stringÀÇ ³¡¿¡¼­ºÎÅÍ length ±æÀÌÀÇ À§Ä¡¿¡ ÀÖ´Â ¹®ÀÚ±îÁöÀÇ ¹®ÀÚ¿­ÀÌ µÈ´Ù.
string ¹®ÀÚ¿­À» start ¹®ÀÚ¿­¿¡¼­ºÎÅÍ length ±æÀ̸¸Å­ À߶󳽴Ù. start°¡ ¾ç¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº 0ºÎÅÍ ½ÃÀ۵Ǵ stringÀÇ start¹ø° À§Ä¡°¡ ½ÃÀÛÁ¡ÀÌ µÈ´Ù. ±×¸®°í start°¡ À½¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº stringÀÇ ³¡¿¡¼­ºÎÅÍ start¹ø° À§Ä¡°¡ ½ÃÀÛÁ¡ÀÌ µÈ´Ù. ¸¸¾à length°¡ ÁÖ¾îÁö°í ¾ç¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº start¿¡¼­ ½ÃÀÛÇؼ­ length ±æÀ̱îÁöÀÇ ¹®ÀÚ¿­ÀÌ µÉ °ÍÀÌ´Ù. ¹Ý¸é¿¡ length°¡ À½¼ö¶ó¸é, ¹ÝȯµÇ´Â ¹®ÀÚ¿­Àº start¿¡¼­ ½ÃÀÛÇؼ­ stringÀÇ ³¡¿¡¼­ºÎÅÍ length ±æÀÌÀÇ À§Ä¡¿¡ ÀÖ´Â ¹®ÀÚ±îÁöÀÇ ¹®ÀÚ¿­ÀÌ µÈ´Ù.


  

ADMA 2008-08-01 21:04  
$file3 = "80_1.HWP";
$ext1 = substr($file3,-3);
$ext2 = strtolower($ext1);

echo $ext2; //hwp  

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