str_getcsv
Here is an improved version of chud37.com's function. It now works with perfect matches, too - highlight('abc', 'abc') didn't work in the old version.
<?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 $m)
if ($i < count($exploded)-1) {$replaced .= $e . "<font class=\"hl\">" . $m[0] . "</font>";} else {$replaced .= $e;}
$i++;
}
return $replaced;
}
?>
str_ireplace
(PHP 5)
str_ireplace — Versão que não diferencia maiúsculas e minúsculas de str_replace().
Descrição
Esta função retorna uma string ou uma matriz com todas as ocorrencias de search em subject (não diferenciando maiúsculas e minúsculas) substituidas com o valor de replace. Se você não necessitar de regras de substituição mais complicadas, você deve geralmente usar esta função ao invés de eregi_replace() ou preg_replace() com o modificador i.
Se subject for uma matriz, então a procura e substituição é realizada para cada item de subject, e o valor retornado é uma matriz.
Se search e replace forem matrizes, então str_ireplace() pega um valor de cada matriz e os usas para localizar e substituir em subject. Se replace tiver menos valores do que search, então uma string vazia é usada para o resto dos valores de substituição. Se search é uma matriz e replace é uma string; então esta string é usada para cada valor de search.
Exemplo #1 Exemplo str_ireplace()
<?php
$bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
?>
Esta função é segura para binários.
Nota: Apartir do PHP 5.0.0 o número de vezes que needles foi encontrado e substituido será retornado em count o qual é passado por referencia. Anteriormente a PHP 5.0.0 este parâmetro não esta disponível.
Veja também: str_replace(), ereg_replace(), preg_replace() e strtr().
User Contributed Notes
str_ireplace
str_ireplace
victor at viathinksoft dot de
30-Jan-2012 08:28
30-Jan-2012 08:28
chud37.com
11-Jan-2012 10:52
11-Jan-2012 10:52
After searching through the forums and laboriously testing all the highlight functions (as I was too lazy to write my own, I wanted a quick solution), I found that none of them did what I wanted at all.
I just wanted a function that took a string and did not modify it in anyway, apart from just surrounding the matching words with some kind of highlighting HTML. At best all the ones of the forums here changed the text but also the case as well. The example given by sawdust *did* work except when given a single character when it continued to loop-replace the letter 'a' in the inserted 'background-color:'. So, here is a fool proof, no-nonsense replace method that should work always.
<?php
function highlight($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 $replaced;
}
?>
Psudo - thepsudo at gmail dot com
29-Jun-2011 06:53
29-Jun-2011 06:53
For highlighting without the overhead of regex and without destroying capitalization, try this:
<?php
function highlight($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 10:11
09-Mar-2011 10:11
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', $q);
}
?>
stepanic dot matija at gmail dot com
21-Oct-2010 06:57
21-Oct-2010 06:57
FIX-ed problem with highlighting second 'o' OR 'a', in this string
<?php
function highlight_string ($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 $haystack;
}
?>
triplepoint at gmail dot com
23-Sep-2010 07:06
23-Sep-2010 07:06
Regarding maintaining the case of the find/replace for search-highlighting purposes:
if the performance hit of a regular expression isn't a big problem, there's something like:
<?php
function highlight_matches($find_text, $text) {
return preg_replace("/($find_text)/i", '<span class="search_item">$1</span>', $text);
}
?>
info at daniel-marschall dot de
22-Jun-2009 04:15
22-Jun-2009 04:15
If you want to keep the original capitalization when replacing some text (e.g. for highlighting the search-string in the the search result), you can use this code I wrote:
<?php
// http://devboard.viathinksoft.de/viewtopic.php?f=34&t=771
// Bugfix-Release #3 (June, 22th 2009)
function ext_str_ireplace($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 10:49
16-Mar-2009 10:49
For function work with cirilic
setlocale (LC_ALL, 'ru_RU');
sawdust
04-Dec-2008 05:28
04-Dec-2008 05:28
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 $haystack;
}
?>
Michael dot Bond at mail dot wvu dot edu
14-Nov-2008 04:44
14-Nov-2008 04:44
This function will highlight search terms (Key Words in Context).
The difference between this one and the ones below is that it will preserve the original case of the search term as well. So, if you search for "american" but in the original string it is "American" it will retain the capital "A" as well as the correct case for the rest of the string.
<?php
function kwic($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 07:32
02-Oct-2008 07:32
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 09:58
05-Jun-2008 09:58
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 01:28
15-Feb-2008 01:28
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
03-Jul-2005 11:07
03-Jul-2005 11:07
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 10:14
05-Apr-2005 10:14
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 07:36
30-May-2004 07:36
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