note 78473 added to reference.pcre.pattern.syntax

I use these functions all the time:

<?php

function regexpmetaspecialchars($ps_str, $ps_delimiter =
'/') {
  $ha_replsearch = array('\', '^', '$', '.', '[', ']', '|',
'(', ')', '?', '*', '+', '{', '}', $ps_delimiter);
  $ha_replreplace = array('\\', '\^', '\$', '\.',
'\[', '\]', '\|', '\(', '\)', '\?', '\*', '\+',
'\{', '\}', '\' . $ps_delimiter);

  return str_replace($ha_replsearch, $ha_replreplace,
$ps_str);
  }

function regexpmetabracketspecialchars($ps_str,
$ps_delimiter = '/') {
  $ha_replsearch = array('\', '^', '-', ']',
$ps_delimiter);
  $ha_replreplace = array('\\', '\^', '\-', '\]', '\'
. $ps_delimiter);

  return str_replace($ha_replsearch, $ha_replreplace,
$ps_str);
  }

function regexpmetareplacespecialchars($ps_str) {
  $ha_replsearch = array('\', '$');
  $ha_replreplace = array('\\', '\$');

  return str_replace($ha_replsearch, $ha_replreplace,
$ps_str);
  }

// Function aliases:
//
function regexpspecialchars($ps_str, $ps_delimiter = '/') {
  return regexpmetaspecialchars($ps_str, $ps_delimiter =
'/');
  }
function regexpbracketspecialchars($ps_str, $ps_delimiter =
'/') {
  return regexpmetabracketspecialchars($ps_str,
$ps_delimiter = '/');
  }
function regexpreplacespecialchars($ps_str) {
  return regexpmetareplacespecialchars($ps_str);
  }

?>
----
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----
Manual Page -- http://www.php.net/manual/en/reference.pcre.patter
n.syntax.php
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Del: non-english -- 
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