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;
}
?>
Descripción
Esta función devuelve una cadena o una matriz con todas las ocurrencias de busqueda en asunto (ignorando mayúsculas y minúsculas) sustituidas por el reemplazo dado. Si no necesita reglas de reemplazo sofisticadas, usted debería, por lo general, usar esta función en lugar de eregi_replace() o preg_replace() con el modificador i.
Lista de parámetros
- busqueda
-
Note: Cada reemplazo con la matriz busqueda es realizado en el resultado del reemplazo previo.
- reemplazo
-
- asunto
-
Si asunto es una matriz, entonces las búsquedas y reemplazos son realizados con cada entrada de asunto , y el valor devuelto es asimismo una matriz.
- conteo
-
El número de agujas coincidentes y reemplazadas será devuelto en conteo , que es pasado por referencia.
Si busqueda y reemplazo son matrices, entonces str_ireplace() toma un valor de cada matriz y los usa para realizar las búsquedas y reemplazos sobre asunto . Si reemplazo tiene menos valores que busqueda , entonces se usa una cadena vacía para el resto de valores de reemplazo. Si busqueda es una matriz y reemplazo es una cadena, entonces esta cadena de reemplazo es usada para cada valor de busqueda .
Valores retornados
Devuelve una cadena o una matriz de reemplazos.
Registro de cambios
| Versión | Descripción |
|---|---|
| 5.0.0 | El parámetro conteo fue agregado. |
Ejemplos
Example #1 Ejemplo de str_ireplace()
<?php
$etiqueta_body = str_ireplace("%body%", "black", "<body text=%BODY%>");
?>
Notes
Note: Esta función es segura con material binario.
str_ireplace
22-Jun-2009 10:15
16-Mar-2009 05:49
For function work with cirilic
setlocale (LC_ALL, 'ru_RU');
04-Dec-2008 10:28
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 $haystack;
}
?>
14-Nov-2008 09:44
This function will highlight search terms (Key Words in Context).
The difference between this one and the ones below is that it will preserve the original case of the search term as well. So, if you search for "american" but in the original string it is "American" it will retain the capital "A" as well as the correct case for the rest of the string.
<?php
function kwic($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);
}
?>
02-Oct-2008 01:32
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);
?>
05-Jun-2008 03:58
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;
}
?>
15-Feb-2008 06:28
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;
}
}
?>
04-Jul-2005 05:07
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.
05-Apr-2005 04:14
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
?>
21-Aug-2004 03:58
If you want to do string highlighting, for example highlighting search terms, try str_highlight().
http://aidanlister.com/repos/v/function.str_highlight.php
30-May-2004 01:36
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
