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PHP 5.3.0 ¿¡¼­ »ç¶óÁø ÇÔ¼öµé ´ëü
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PHP  5.3.0  ¹öÀü  À̻󿡼­  »ç¶óÁ®¹ö¸°  ºñ¿îÀÇ  ÇÔ¼öµéÀÌ  ÀÖ½À´Ï´Ù.  ¹Ù·Î  POSIX  Regex  ÇÔ¼öµéÀÔ´Ï´Ù.  ´ëºÎºÐ  ¸¹À̵頠½á¿Ô´ø  ÇÔ¼öÀ̱⿡,  Àúµµ  ±×·¸°í  ¾ÆÁ÷±îÁö  ¸¹ÀººÐµéÀÌ  5.3.0  À̻󠠹öÀüÀ¸·Î  ¾÷µ¥ÀÌÆ®¸¦  ÇÏÁö  ¸øÇÏ°í  ÀÖÀ»  µí  ÇÕ´Ï´Ù.

ÇÏÁö¸¸,  PHP  6.0.0  ÀÌ»ó¹öÀüºÎÅÍ  ¿ÏÀüÈ÷  »ç¶óÁú  ÀÌ  ÇÔ¼öµéÀ»  ¾ðÁ¦±îÁö°í  ²ø°í°¥  ¼ö  ¾ø±â¶§¹®¿¡  ´ëüÇÔ¼ö(?)·Î  ¹Ù²Ù´Â  ¹æ¹ýÀ»  °£´ÜÇÏ°Ô  ¼³¸íÇÒ·Á°í  ÇÕ´Ï´Ù.

splitÇÔ¼ö
splitÀº  Æ¯Á¤ÆÐÅÏÀ¸·Î  ¹®ÀÚ¿­À»  À߶óÁִ  ÇÔ¼öÀÔ´Ï´Ù.
¿¹¸¦  µé¾î,  $arr  =  split(',',  '¾Æºü,¾ö¸¶');  ¶ó°í  ÇѴٸ頠$arr  ¿¡´Â  Array('¾Æºü','¾ö¸¶');  °¡  µÇ´Â  °ÍÀÌÁö¿ä.
ÀÌÇÔ¼ö´Â  5.3.0  ÀÌ»ó¹öÀüºÎÅÍ  explodeÇÔ¼ö·Î  ´ëüµÇ¾î¾ß  ÇÕ´Ï´Ù.  »ç¿ë¹æ¹ýÀº  ¶È°°½À´Ï´Ù¸¸,  splitÇÔ¼ö°¡  Á¤±Ô½ÄÀ»  Áö¿øÇߴٸ頠explode´Â  ÇÏÁö  ¾Ê´Â´Ù¶ó´Â  °ÍÀÌ  ´Ù¸¨´Ï´Ù.


eregÇÔ¼ö
ereg°è¿­ÀÇ  ÇÔ¼ö´Â  Á¤±Ô½ÄÀ¸·Î  ¹®ÀÚ¿­À»  Ã£°Å³ª,  Ã£Àº¹®ÀÚ¿­À»  ¹Ù²Ù°Å³ª  Çϴ  ÇÔ¼öÀÔ´Ï´Ù.
ereg_replace($patten,  $replacement,  $string);  ÇüÅ·Π ¾²ÀÔ´Ï´Ù.
ÀÌ  ÇÔ¼ö´Â  5.3.0  ÀÌ»óºÎÅÍ  preg_replace·Î  ¹Ù²Ù¾î¾ßÇÕ´Ï´Ù.  µÎ°³ÀÇ  ÇÔ¼öÀÇ  ÀÎÀÚ¼ø¼­´Â  °°Áö¸¸,  eregÇÔ¼ö¿Í  pregÇÔ¼ö´Â  Á¤±Ô½ÄÀ»  Ç¥ÇöÇϴ  ¹æ¹ýÀÌ  ¾à°£  Æ²¸³´Ï´Ù.

$str  =  ereg_replace('[a-z]+',  'A',  $str);
eregÇÔ¼ö°¡  À§¿Í  °°ÀÌ  Á¤±Ô½ÄÀ»  Àû¾ú´Ù¸é,  pregÇÔ¼ö´Â  ¾Æ·¡¿Í  °°ÀÌ  Àû½À´Ï´Ù.
$str  =  preg_replace('/[a-z]+/',  'A',  $str);

±×¸®°í  ereg°è¿­ÀÌ  ´ë¼Ò¹®ÀÚ¸¦  ±¸ºÐÇϴ  °Í°ú  ±¸ºÐÇÏÁö  ¾Ê´Â  °ÍÀÌ  ereg,  eregi  µÎ°¡Áö  ÇÔ¼ö·Î  ±¸ºÐµÇ¾ú´Ù¸é,  preg´Â  ÇϳªÀÇ  ÇÔ¼ö·Î  Ã³¸®µË´Ï´Ù.  ¿¹¸¦  µé¾î  À§ÀÇ  preg_replace  ÇÔ¼öÀÇ  Á¤±Ô½Ä¿¡¼­  ´ë¼Ò¹®ÀÚ¸¦  ±¸ºÐÇÏÁö  ¾Ê°Ú´Ù°í  ÇÑ´Ù¸é,  ¾Æ·¡¿Í  °°ÀÌ  i°¡  Ãß°¡µË´Ï´Ù.
$str  =  preg_replace('/[a-z]+/i',  'A',  $str);

±×  ¿Ü¿¡  ¹®ÀÚ¿­À»  °Ë»öÇÏ´ø  eregÇÔ¼ö´Â  preg_matchÇÔ¼ö·Î  ´ëüµÇ¾î¾ß  ÇÕ´Ï´Ù.
$str  =  'abcedf';
if  (ereg('[abc]'.  $str,  $matches)  ==  true)  print_r($matches);
¹¹  Àú·±½ÄÀ¸·Î  eregÇÔ¼ö¸¦  »ç¿ëÇϵíÀÌ  preg_matchÇÔ¼öµµ  »ç¿ëÇϸ頠µÇÁö¸¸  Á¤±Ô½Ä  ÀԷºκÐÀº  ¿ª½Ã  ¾à°£  ´Ù¸¨´Ï´Ù.

$str  =  'abc123abc';
if  (preg_match('/([a-z]+)([0-9]+)/',  $str,  $matches)  ==  true)  print_r($matches);
À§ÀÇ  Ã³·³  3¹ø°  ÀÎÀÚ¿¡  °Ë»öµÈ  ÆÐÅÏÀÌ  ¹è¿­·Î  ´ã±â´Â  ÀÎÀÚ¸¦  ³Ö½À´Ï´Ù.
preg_match°¡  true°¡  µÈ´Ù¸é,  $matches¾È¿¡´Â  ÀÏÄ¡µÈ  ¹®ÀÚ¿­ÀÌ  ¹è¿­·Î  µé¾î°¡°Ô  µÇÁÒ.  Á¤±Ô½Ä¿¡  (  )  °¡  ¾ø´Ù¸é  $matches[0]¿¡  ÀÏÄ¡µÈ  ÀüüÆÐÅÏÀÌ  µé¾î°¡°Ô  µÇ°Ú°í,  (  )°¡  Àִٸ頠$matches[0]  ÀÌÈÄÀÇ  $matches[1]ºÎÅÍ  (  )  ¾ÈÀÇ  ÀÏÄ¡ºÎºÐ¸¸  »©¿Ã  ¼ö  ÀÖ½À´Ï´Ù.
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