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[php]¿øÇÏ´Â ´Ü¾î¸¦ ã¾Æ¼­ ġȯ ÇØÁÖ´Â ¹æ¹ý preg replace
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preg_replace()´Â subject Àμö¿§ µû¶ó¼­ ¹è¿­À̳ª ¹®ÀÚ¿­À» ¹ÝȯÇÕ´Ï´Ù.

¸ÅÄ¡°¡ ¹ß°ßµÇ¸é »õ subject ¸¦ ¹ÝȯÇÏ°í, ±×·¸Áö ¾ÊÀ¸¸é º¯°æµÇÁö ¾ÊÀº subject ¸¦ ¹ÝȯÇÕ´Ï´Ù. ¿À·ù°¡ ¹ß»ýÇϸé NULLÀ» ¹ÝȯÇÕ´Ï´Ù.


º¯°æÁ¡



¹öÀü

¼³¸í


5.1.0 count Àμö Ãß°¡
4.0.4 replacement Àμö¿¡ '$n' Çü½Ä Ãß°¡
4.0.2 limit Àμö Ãß°¡



¿¹Á¦



Example #1 ¼ö°¡ µû¶ó¿À´Â ¿ªÂüÁ¶ »ç¿ëÇϱâ


<?php
$string = 'April 15, 2003';
$pattern = '/(\w+) (\d+), (\d+)/i';
$replacement = '${1}1,$3';
echo preg_replace($pattern, $replacement, $string);
?>


À§ ¿¹Á¦ÀÇ Ãâ·Â:


April1,2003





Example #2 preg_replace()¿Í À妽º ¹è¿­ »ç¿ëÇϱâ


<?php
$string = 'The quick brown fox jumped over the lazy dog.';
$patterns[0] = '/quick/';
$patterns[1] = '/brown/';
$patterns[2] = '/fox/';
$replacements[2] = 'bear';
$replacements[1] = 'black';
$replacements[0] = 'slow';
echo preg_replace($patterns, $replacements, $string);
?>


À§ ¿¹Á¦ÀÇ Ãâ·Â:


The bear black slow jumped over the lazy dog.



patterns¿Í replacements¸¦ ksortÇؼ­, ¿øÇÏ´ø °á°ú¸¦ ¾ò½À´Ï´Ù.


<?php
ksort($patterns);
ksort($replacements);

echo preg_replace($patterns, $replacements, $string);
?>


À§ ¿¹Á¦ÀÇ Ãâ·Â:


The slow black bear jumped over the lazy dog.





Example #3 ¿©·¯ °ª ġȯÇϱâ


<?php
$patterns = array ('/(19|20)(\d{2})-(\d{1,2})-(\d{1,2})/',
                   '/^\s*{(\w+)}\s*=/');
$replace = array ('\3/\4/\1\2', '$\1 =');
echo preg_replace($patterns, $replace, '{startDate} = 1999-5-27');
?>


À§ ¿¹Á¦ÀÇ Ãâ·Â:


$startDate = 5/27/1999





Example #4 'e' º¯°æÀÚ »ç¿ëÇϱâ


<?php
preg_replace("/(<\/?)(\w+)([^>]*>)/e",
             "'\\1'.strtoupper('\\2').'\\3'",
             $html_body);
?>


À§ ¿¹Á¦´Â ÀÔ·ÂµÈ ÅؽºÆ®ÀÇ ¸ðµç HTML ű׸¦ ´ë¹®ÀÚ·Î º¯°æÇÕ´Ï´Ù.




Example #5 °ø¹é Á¦°ÅÇϱâ


ÀÌ ¿¹Á¦´Â ¹®ÀÚ¿­¿¡¼­ ÃÊ°úµÈ °ø¹éÀ» Á¦°ÅÇÕ´Ï´Ù.


<?php
$str = 'foo   o';
$str = preg_replace('/\s\s+/', ' ', $str);
// ÀÌÁ¦ 'foo o'°¡ µË´Ï´Ù.
echo $str;
?>




Example #6 count Àμö »ç¿ëÇϱâ


<?php
$count = 0;

echo preg_replace(array('/\d/', '/\s/'), '*', 'xp 4 to', -1, $count);
echo $count; //3
?>


À§ ¿¹Á¦ÀÇ Ãâ·Â:


xp***to

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