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eregi_replace (PHP 3, PHP 4, PHP 5) eregi_replace -- Replace regular expression case insensitive Descriptionstring eregi_replace ( string pattern, string replacement, string string )
This function is identical to ereg_replace()
except that this ignores case distinction when matching
alphabetic characters.
Example 1. Highlight search results |
<?php
$pattern = '(>[^<]*)('. quotemeta($_GET['search']) .')';
$replacement = '\\1<span class="search">\\2</span>';
$body = eregi_replace($pattern, $replacement, $body);
?>
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See also ereg(), eregi(),
and ereg_replace().
User Contributed Notes
eregi_replace
joltmans at amersel dot com
01-Mar-2005 01:06
PHP's Regex engine differs from several others in its treatment of parsing spaces.
In many Regex languages '\s' denotes a space.
PHP does not recognize '\s', just type a space ' ' instead.
This simple example illustrates the problem:
<?php
$string = "A sentence with spaces";
if (eregi("with\s*spaces", $string))
{
echo "PHP understood \s";
}
else
{
echo "PHP doesn't understand \s";
}
?>
This example does work:
<?php
$string = "A sentence with spaces";
if (eregi("with *spaces", $string))
{
echo "PHP understood ' '";
}
?>
27-Jan-2005 10:15
never mind my last post for the eregi_replace not replacing.
I just used str_replace instead and it works fine. I must have had something wrong with my search string. POSIX, Perl.. hmm.. yeah probably something there.
Mettedraq / Gene
Ausvald
19-Jun-2004 06:21
Zach Johnson missed up. ereg* funcs use posix regex, not the rfc one
furiousgreencloud at yahoo dot com
17-Jun-2004 10:47
To simply convert wild input into a sensable sting, say for a filename I use:
function cleanString($wild) {
return ereg_replace("[^[:alnum:]+]","",$wild);
}
echo cleanString("@#$&*$@#H~e'{}l{}l<o\{}"); // outputs: Hello
e dot boeters at planet dot nl
03-Jun-2004 06:46
This is a 'faster' way to highlight search results:
$content = str_replace($query, "<span class=\"highlight\">" . $query . "</span>", $content);
julien at ratatouille dot com dot fr
24-Nov-2003 08:28
This function replace < and > symbols between <code> and </code> tags by html code for lower than (<) and greather than (>) elements.
function retourne_format_code($texte)
{
$tablo=split("<code>",$texte);
$texte="";
$texte.=$tablo[0];
foreach($tablo as $cle=>$valeur)
{
if(eregi("</code>",$valeur))
{
$tablo1=split("</code>",$valeur);
$tablo1[0]=eregi_replace("<","<",$tablo1[0]);
$tablo1[0]=eregi_replace(">",">",$tablo1[0]);
foreach($tablo1 as $cle1=>$valeur1)
{
if($cle1==0)
$valeur1="<code>".$valeur1."</code>";
$texte.=$valeur1;
}
}
}
return $texte;
}
martin_goldmann at gmx dot net
18-Nov-2003 02:43
After reading the last message I wrote that de-spamizer:
function despamMailURI($myStrMail='')
{
?>javascript:void(location.href='mailto:'+<?=eregi_replace( "^([_\.0-9a-z-]+)@([0-9a-z][0-9a-z-]+)\.([a-z]{2,6})$", "'\\1'+'@'+'\\2'+'.'+'\\3'",$myStrMail)?>)<?
}
Usage example:
<a href="<?=despamMailURI("user@foo.bar")?>">Mail me</a>
iparanoid at gmx dot de
23-Aug-2003 11:03
To obtain the an email addresse in the scheme user at host dot use following function
function antispam_mail($mail) {
return eregi_replace( "^([_\.0-9a-z-]+)@([0-9a-z][0-9a-z-]+)\.([a-z]{2,6})$", '\\1 at \\2 dot \\3',$mail );
};
Combined with a wee JavaScript (document.location='mailto:'+user+'@'+host+'.'+tld) this provides a very powerfull anti-spam mechanism while providing full mailto: link functionality.
chpins-php at romu92 dot freesurf dot fr
02-Jun-2003 06:15
/*new function for href2text : */
function AHREF2text($string) {
return eregi_replace('(<a [^<]*href=["|\']?([^ "\']*)["|\']?[^>].*>([^<]*)</a>)','[\\3] (link: \\2)', $string);
}
// by Ch'Pins
buddy at directpay dot cz
14-May-2003 12:22
i had to solve problem conserning DB2 timestamp format. here is how to parse ANSI timestamp format to DB2 timestamp format:
$mydate = Date("Y-m-d H:i:s");
$var = eregi_replace
("([0-9]{4}-[0-9]{2}-[0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})"
,"\\1-\\2.\\3.\\4",$mydate);
echo "ANSI: $mydate, DB2 format: $var";
happy codding
buddy
eder at xce dot de
03-May-2003 09:23
/*As php at silisoftware dot com's example works only if there is not more than one link in $string, I rewrote his expression to function with strings containing multiple links: */
function AHREF2text($string) {
return eregi_replace('(<a [^<]*href=["|\']?([^ "\']*)["|\']?[^>]*>([^<]*)</a>)','[\\3] (link: \\2)', $string);
}
Rainmaker526 at hotmail.com
09-Mar-2003 09:02
I have found that some characters cannot be used by eregi_replace (or ereg_replace). When you get the REG_BADRPT error, try backslashing any special chars in your pattern string
ex.
$str = eregi_replace("*", "", $somevar)
gives the REG_BADRPT error. Change it to
$str = eregi_replace("\*", "", $somevar)
to make it work
php at silisoftware dot com
18-Feb-2003 01:08
Transform HTML links into plain-text "links" with the URL visible
function AHREF2text($string) {
return eregi_replace('<A .*HREF=("|\')?([^ "\']*)("|\')?.*>([^<]*)</A>', '[\\4] (link: \\2)', $string);
}
$HTMLstring = 'A link to <a href="http://www.php.net">PHP.net</A>';
echo AHREF2text($HTMLstring);
// prints: A link to [PHP.net] (link: http://www.php.net)
simon_a99 at yahoo dot co dot uk
27-Aug-2002 02:07
To find a string regardless of case, you might want to use the matched string in the replacement string without changing its case.
For example, you're searching for $search = "letter" and the text being searched is $text = "post lEtTeR". I want to change the format of the matched string.
Do this:
eregi_replace($search, "<b>\\0</b>", $text);
$text has now been changed to "post <b>lEtTeR</b>". \\0 is the entire text matched (lEtTer in this case).
shane at unixcentral dot co dot za
07-Feb-2002 07:53
A Quick way of removing excess spaces:
<?
$string = "One Two Three Four";
$var = eregi_replace(" +", " ", $string);
echo $var;
?>
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ereg