preg replace escape special character [closed]

preg replace escape special character [closed]

References

Reference NO 1

http://stackoverflow.com/questions/767714/how-to-escape-in-php-using-preg-replace

Reference NO 2

http://www.procata.com/blog/?p=155

Reference NO 3

http://www.phpro.org/tutorials/Introduction-to-PHP-Regex.html

Reference NO 4

http://www.dreamincode.net/forums/topic/309212-preg-replace-returns-null/

Reference NO 5

https://drupal.org/node/141168

Reference NO 6

http://www.webmasterworld.com/forum88/669.htm

Reference NO 7

http://wiki.uniformserver.com/index.php/PHP_CLI:_Files_Search_and_Replace

Reference NO 8

http://coursesweb.net/php-mysql/regexp-regular-expressions