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.
str_ireplace
Description
mixed str_ireplace ( mixed search, mixed replace, mixed subject [, int &count] )This function returns a string or an array with all occurrences of search in subject (ignoring case) replaced with the given replace value. If you don't need fancy replacing rules, you should generally use this function instead of eregi_replace() or preg_replace() with the i modifier.
If subject is an array, then the search and replace is performed with every entry of subject, and the return value is an array as well.
If search and replace are arrays, then str_ireplace() takes a value from each array and uses them to do search and replace on subject. If replace has fewer values than search, then an empty string is used for the rest of replacement values. If search is an array and replace is a string; then this replacement string is used for every value of search.
This function is binary safe.
注: As of PHP 5.0.0 the number of matched and replaced needles will be returned in count which is passed by reference. Prior to PHP 5.0.0 this parameter is not available.
See also: str_replace(), ereg_replace(), preg_replace(), and strtr().
add a note
User Contributed Notes
hfuecks at nospam dot org
04-Jul-2005 05:07
04-Jul-2005 05:07
daevid at daevid dot com
06-Apr-2005 04:14
06-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
?>
aidan at php dot net
21-Aug-2004 03:58
21-Aug-2004 03:58
If you want to do string highlighting, for example highlighting search terms, try str_highlight().
http://aidan.dotgeek.org/lib/?file=function.str_highlight.php
aidan at php dot net
31-May-2004 01:36
31-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