str_getcsv
After searching through the forums and laboriously testing all the highlight functions (as I was too lazy to write my own, I wanted a quick solution), I found that none of them did what I wanted at all.
I just wanted a function that took a string and did not modify it in anyway, apart from just surrounding the matching words with some kind of highlighting HTML. At best all the ones of the forums here changed the text but also the case as well. The example given by sawdust *did* work except when given a single character when it continued to loop-replace the letter 'a' in the inserted 'background-color:'. So, here is a fool proof, no-nonsense replace method that should work always.
<?php
function highlight($haystack, $needle) {
if (strlen($haystack) < 1 || strlen($needle) < 1) {return $haystack;}
preg_match_all("/$needle+/i", $haystack, $match);
$exploded = preg_split("/$needle+/i",$haystack);
$replaced = "";
foreach($exploded as $e)
foreach($match as $m)
if($e!=$exploded[count($exploded)-1]) {$replaced .= $e . "<font style=\"background-color:yellow\">" . $m[0] . "</font>";} else {$replaced .= $e;}
return $replaced;
}
?>
설명
subject에서 (대소문자 구별 없이) 모든 search를 주어진 replace로 치환합니다. 복잡한 치환 규칙이 필요하지 않다면, preg_replace()에 i 변경자를 사용하는 대신, 이 함수를 사용하십시오.
인수
- search
-
Note:
search 배열의 모든 치환은 이전 치환의 결과로 수행합니다.
- replace
-
- subject
-
subject가 배열이면, 검색 및 치환을 subject의 모든 원소에서 수행하고, 배열을 반환합니다.
- count
-
매치하여 치환한 needles의 수를 참조로 전달한 count로 반환합니다.
search와 replace가 배열이면, str_ireplace()는 각각의 배열값을 subject에서 검색하고 치환하는 데에 사용합니다. replace가 search보다 적은 값을 가지고 있으면, 나머지 치환값은 빈 문자열을 사용합니다. search가 배열이고 replace가 문자열이면, 치환 문자열을 search의 모든 값에 사용합니다.
반환값
치환한 문자열이나 배열을 반환합니다.
변경점
| 버전 | 설명 |
|---|---|
| 5.0.0 | count 인수 추가. |
예제
Example #1 str_ireplace() 예제
<?php
$bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
?>
주의
Note: 이 함수는 바이너리 안전입니다.
참고
- str_replace() - 발견한 모든 검색 문자열을 치환 문자열로 교체
- preg_replace() - 정규 표현식 검색과 치환을 수행
- strtr() - Translate characters or replace substrings
add a note
User Contributed Notes
str_ireplace
chud37.com
11-Jan-2012 12:52
Psudo - thepsudo at gmail dot com
29-Jun-2011 09:53
For highlighting without the overhead of regex and without destroying capitalization, try this:
<?php
function highlight($needle, $haystack){
$ind = stripos($haystack, $needle);
$len = strlen($needle);
if($ind !== false){
return substr($haystack, 0, $ind) . "<b>" . substr($haystack, $ind, $len) . "</b>" .
highlight($needle, substr($haystack, $ind + $len));
} else return $haystack;
}
?>
This example uses HTML bold tags, but you can easily change the highlighting method.
holblin at holblin dot com
09-Mar-2011 01:11
Warning with highlighting ...
I used :
<?php
$text = preg_replace('/('.$q.')/i','<span class=highlighting "">$1</span>' , $text);
?>
Because this line do not allow to highlight uppercase and lowercase correctly (transform uppercase to lowercase for exemple)
<?php
$text = str_ireplace( $q , '<span class=highlighting "">'.$q.'</span>', $text);
?>
But when $q contain some regex you have some problems ... for exemple :
<?php $q = '('; ?>
So you must use preg_replace to highlight correctly the text and you must create a function for escape bad regex caracters !
I think that a better function can be found but this works I guess :
<?php
function regex_escape( $q )
{
return preg_replace('/([\[\]\(\)\{\}\-\.\*\?\|\^\$])/', '\$1', $q);
}
?>
stepanic dot matija at gmail dot com
21-Oct-2010 08:57
FIX-ed problem with highlighting second 'o' OR 'a', in this string
<?php
function highlight_string ($haystack, $needle, $highlight_class) {
// return $haystack if there is no highlight color or strings given, nothing to do.
$first_encode='XXXXXXXXXXXXXXX'; //ENCODE string
$second_encode='YYYYYYYYYYYYYYY';
preg_match_all("/$needle+/i", $haystack, $matches);
if (is_array($matches[0]) && count($matches[0]) >= 1) {
foreach ($matches[0] as $match) {
$haystack = str_replace($match, $first_encode.$match.$second_encode, $haystack);
}
}
$haystack=str_replace(array($first_encode,$second_encode),
array('<font class="'.$highlight_class.'" >','</font>'),$haystack);
return $haystack;
}
?>
triplepoint at gmail dot com
23-Sep-2010 10:06
Regarding maintaining the case of the find/replace for search-highlighting purposes:
if the performance hit of a regular expression isn't a big problem, there's something like:
<?php
function highlight_matches($find_text, $text) {
return preg_replace("/($find_text)/i", '<span class="search_item">$1</span>', $text);
}
?>
info at daniel-marschall dot de
22-Jun-2009 07:15
If you want to keep the original capitalization when replacing some text (e.g. for highlighting the search-string in the the search result), you can use this code I wrote:
<?php
// http://devboard.viathinksoft.de/viewtopic.php?f=34&t=771
// Bugfix-Release #3 (June, 22th 2009)
function ext_str_ireplace($findme, $replacewith, $subject)
{
// Replaces $findme in $subject with $replacewith
// Ignores the case and do keep the original capitalization by using $1 in $replacewith
// Required: PHP 5
$rest = $subject;
$result = '';
while (stripos($rest, $findme) !== false) {
$pos = stripos($rest, $findme);
// Remove the wanted string from $rest and append it to $result
$result .= substr($rest, 0, $pos);
$rest = substr($rest, $pos, strlen($rest)-$pos);
// Remove the wanted string from $rest and place it correctly into $result
$result .= str_replace('$1', substr($rest, 0, strlen($findme)), $replacewith);
$rest = substr($rest, strlen($findme), strlen($rest)-strlen($findme));
}
// After the last match, append the rest
$result .= $rest;
return $result;
}
?>
ishutko at gmail dot com
16-Mar-2009 01:49
For function work with cirilic
setlocale (LC_ALL, 'ru_RU');
sawdust
04-Dec-2008 07:28
Here's a different approach to search result keyword highlighting that will match all keyword sub strings in a case insensitive manner and preserve case in the returned text. This solution first grabs all matches within $haystack in a case insensitive manner, and the secondly loops through each of those matched sub strings and applies a case sensitive replace in $haystack. This way each unique (in terms of case) instance of $needle is operated on individually allowing a case sensitive replace to be done in order to preserve the original case of each unique instance of $needle.
<?php
function highlightStr($haystack, $needle, $highlightColorValue) {
// return $haystack if there is no highlight color or strings given, nothing to do.
if (strlen($highlightColorValue) < 1 || strlen($haystack) < 1 || strlen($needle) < 1) {
return $haystack;
}
preg_match_all("/$needle+/i", $haystack, $matches);
if (is_array($matches[0]) && count($matches[0]) >= 1) {
foreach ($matches[0] as $match) {
$haystack = str_replace($match, '<span style="background-color:'.$highlightColorValue.';">'.$match.'</span>', $haystack);
}
}
return $haystack;
}
?>
Michael dot Bond at mail dot wvu dot edu
14-Nov-2008 06:44
This function will highlight search terms (Key Words in Context).
The difference between this one and the ones below is that it will preserve the original case of the search term as well. So, if you search for "american" but in the original string it is "American" it will retain the capital "A" as well as the correct case for the rest of the string.
<?php
function kwic($str1,$str2) {
$kwicLen = strlen($str1);
$kwicArray = array();
$pos = 0;
$count = 0;
while($pos !== FALSE) {
$pos = stripos($str2,$str1,$pos);
if($pos !== FALSE) {
$kwicArray[$count]['kwic'] = substr($str2,$pos,$kwicLen);
$kwicArray[$count++]['pos'] = $pos;
$pos++;
}
}
for($I=count($kwicArray)-1;$I>=0;$I--) {
$kwic = '<span class="kwic">'.$kwicArray[$I]['kwic'].'</span>';
$str2 = substr_replace($str2,$kwic,$kwicArray[$I]['pos'],$kwicLen);
}
return($str2);
}
?>
info at daniel-marschall dot de
02-Oct-2008 10:32
Example for str_ireplace(). It will print "RePlaCeMe" in red color, but after this, it would be written in lower case because of the string $search.
<?php
$search = 'replaceme';
$replace = '<font color="#FF0000">'.$search.'</font>';
$text = 'Please RePlaCeMe, OK?';
echo str_ireplace($search, $replace, $text);
?>
Example for ext_str_ireplace(). It will print "RePlaCeMe" in red color, and will not change the capitalization:
<?php
$search = 'replaceme';
$replace = '<font color="#FF0000">$1</font>';
$text = 'Please RePlaCeMe, OK?';
echo ext_str_ireplace($search, $replace, $text);
?>
Anonymous
05-Jun-2008 12:58
I modified a script from notes on the eregi_replace() function page. This is a highlight script that worked good for me.
$text - is the text to search
$words - are the words to highlight (search text)
$the_place - is so that you can tell your users what "area" was searched.
<?php
function highlight_this($text, $words, $the_place) {
$words = trim($words);
$wordsArray = explode(' ', $words);
foreach($wordsArray as $word) {
if(strlen(trim($word)) != 0)
$text = str_ireplace($word, "<span class=\"highlight\">".strtoupper($word)."</span>", $text, $count);
}
//added to show how many keywords were found
echo "<br><div class=\"emphasis\">A search for <strong>" . $words. "</strong> found <strong>" . $count . "</strong> matches within the " . $the_place. ".</div><br>";
//end script modification
return $text;
}
?>
mvpetrovich
15-Feb-2008 03:28
Here are some minor tweaks to-n00b-at-battleofthebits-dot-org's excellent function.
1) The token was set to an ASCII value 1 (which could be changed as was previously noted)
2) The $c++ was not needed
3) The while statement is not necessary for the final replacement
4) Note that this does not allow use of arrays for search and replace terms. That could be implemented using loops.
<?php
if(!function_exists('str_ireplace')){
function str_ireplace($search,$replace,$subject){
$token = chr(1);
$haystack = strtolower($subject);
$needle = strtolower($search);
while (($pos=strpos($haystack,$needle))!==FALSE){
$subject = substr_replace($subject,$token,$pos,strlen($search));
$haystack = substr_replace($haystack,$token,$pos,strlen($search));
}
$subject = str_replace($token,$replace,$subject);
return $subject;
}
}
?>
hfuecks at nospam dot org
04-Jul-2005 02:07
Note that character case is being defined by your server's locale setting, which effects strings containing non-ASCII characters.
See strtolower() - http://www.php.net/strtolower and comments - internally str_ireplace converts $search and $replace to lowercase to find matches.
daevid at daevid dot com
05-Apr-2005 01:14
here's a neat little function I whipped up to do HTML color coding of SQL strings.
<?php
/**
* Output the HTML debugging string in color coded glory for a sql query
* This is very nice for being able to see many SQL queries
* @access public
* @return void. prints HTML color coded string of the input $query.
* @param string $query The SQL query to be executed.
* @author Daevid Vincent [daevid@LockdownNetworks.com]
* @version 1.0
* @date 04/05/05
* @todo highlight SQL functions.
*/
function SQL_DEBUG( $query )
{
if( $query == '' ) return 0;
global $SQL_INT;
if( !isset($SQL_INT) ) $SQL_INT = 0;
//[dv] this has to come first or you will have goofy results later.
$query = preg_replace("/['\"]([^'\"]*)['\"]/i", "'<FONT COLOR='#FF6600'>$1</FONT>'", $query, -1);
$query = str_ireplace(
array (
'*',
'SELECT ',
'UPDATE ',
'DELETE ',
'INSERT ',
'INTO',
'VALUES',
'FROM',
'LEFT',
'JOIN',
'WHERE',
'LIMIT',
'ORDER BY',
'AND',
'OR ', //[dv] note the space. otherwise you match to 'COLOR' ;-)
'DESC',
'ASC',
'ON '
),
array (
"<FONT COLOR='#FF6600'><B>*</B></FONT>",
"<FONT COLOR='#00AA00'><B>SELECT</B> </FONT>",
"<FONT COLOR='#00AA00'><B>UPDATE</B> </FONT>",
"<FONT COLOR='#00AA00'><B>DELETE</B> </FONT>",
"<FONT COLOR='#00AA00'><B>INSERT</B> </FONT>",
"<FONT COLOR='#00AA00'><B>INTO</B></FONT>",
"<FONT COLOR='#00AA00'><B>VALUES</B></FONT>",
"<FONT COLOR='#00AA00'><B>FROM</B></FONT>",
"<FONT COLOR='#00CC00'><B>LEFT</B></FONT>",
"<FONT COLOR='#00CC00'><B>JOIN</B></FONT>",
"<FONT COLOR='#00AA00'><B>WHERE</B></FONT>",
"<FONT COLOR='#AA0000'><B>LIMIT</B></FONT>",
"<FONT COLOR='#00AA00'><B>ORDER BY</B></FONT>",
"<FONT COLOR='#0000AA'><B>AND</B></FONT>",
"<FONT COLOR='#0000AA'><B>OR</B> </FONT>",
"<FONT COLOR='#0000AA'><B>DESC</B></FONT>",
"<FONT COLOR='#0000AA'><B>ASC</B></FONT>",
"<FONT COLOR='#00DD00'><B>ON</B> </FONT>"
),
$query
);
echo "<FONT COLOR='#0000FF'><B>SQL[".$SQL_INT."]:</B> ".$query."<FONT COLOR='#FF0000'>;</FONT></FONT><BR>\n";
$SQL_INT++;
} //SQL_DEBUG
?>
aidan at php dot net
30-May-2004 10:36
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat