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strrchr — ¹®ÀÚ¿­¿¡¼­ ¹®ÀÚ°¡ ¸¶Áö¸·À¸·Î ³ª¿À´Â ºÎºÐÀ» ã½À´Ï´Ù
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string strrchr ( string $haystack , mixed $needle )


ÀÌ ÇÔ¼ö´Â needle ÀÌ ¸¶Áö¸·À¸·Î ³ª¿À´Â À§Ä¡ºÎÅÍ haystack ÀÇ ¸¶Áö¸·±îÁöÀÇ haystack ¹®ÀÚ¿­ ºÎºÐÀ» ¹ÝȯÇÕ´Ï´Ù.


haystack : Ž»öÇÒ ¹®ÀÚ¿­


needle :


¨ç needle ÀÌ Çϳª ÀÌ»óÀÇ ¹®ÀÚ¸¦ °¡Áö°í ÀÖÀ¸¸é, ù¹ø° ¹®ÀÚ¸¸ »ç¿ëÇÕ´Ï´Ù. ÀÌ µ¿ÀÛÀº strstr()°ú ´Ù¸¨´Ï´Ù.
¨è needle ÀÌ ¹®ÀÚ¿­ÀÌ ¾Æ´Ï¸é, Á¤¼ö·Î º¯È¯ÇÏ¿© ÇØ´çÇÏ´Â °ªÀÇ ¹®ÀÚ¸¦ ÃëÇÕ´Ï´Ù.


¹Ýȯ°ª : ¹®ÀÚ¿­ÀÇ ºÎºÐÀ» ¹ÝȯÇϰųª, needle ÀÌ ¹ß°ßµÇÁö ¾ÊÀ¸¸é FALSE¸¦ ¹ÝȯÇÕ´Ï´Ù.




EX) $exp_01=strrchr($d_file_name_01, '.');



http://docs.php.net/manual/kr/function.strrchr.php
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