quotemeta
I'm sure there's a better way to strip strings from the end of strings.
<?php
/**
* Strip a string from the end of a string
*
* @param string $str the input string
* @param string $remove OPTIONAL string to remove
*
* @return string the modified string
*/
function rstrtrim($str, $remove=null)
{
$str = (string)$str;
$remove = (string)$remove;
if(empty($remove))
{
return rtrim($str);
}
$len = strlen($remove);
$offset = strlen($str)-$len;
while($offset > 0 && $offset == strpos($str, $remove, $offset))
{
$str = substr($str, 0, $offset);
$offset = strlen($str)-$len;
}
return rtrim($str);
} //End of function rstrtrim($str, $remove=null)
echo rstrtrim('Hello World!!!', '!') .'<br />'; //"Hello World"
echo rstrtrim('Hello World!!!', '!!') .'<br />'; //"Hello World!"
echo rstrtrim('Hello World!!!', '!!!') .'<br />'; //"Hello World"
echo rstrtrim('Hello World!!!', '!!!!').'<br />'; //"Hello World!!!"
?>
rtrim
(PHP 4, PHP 5)
rtrim — Dizgenin sonundaki boşlukları (veya diğer karakterleri) budar
Açıklama
string rtrim
( string $dizge
[, string $karakterler
] )
Bu işlev dizge 'nin sonundaki boşlukları budar.
İkinci değiştirge olmaksızın rtrim() sadece aşağıdaki karakterleri budayacaktır:
- " " (ASCII 32 (0x20)), sıradan boşluk.
- "\t" (ASCII 9 (0x09)), sekme.
- "\n" (ASCII 10 (0x0A)), satırsonu.
- "\r" (ASCII 13 (0x0D)), satırbaşı.
- "\0" (ASCII 0 (0x00)), NUL-bayt.
- "\x0B" (ASCII 11 (0x0B)), dikey sekme.
Değiştirgeler
- dizge
-
Budanacak dizge.
- karakterler
-
Seçimlik olarak, karakterler değiştirgesi kullanılarak budanacak karakterler belirlenebilir. Basitçe budamak istediğiniz tüm karakterleri belirtin. Bir karakter aralığını .. kullanarak belirtebilirsiniz.
Dönen Değerler
Budanmış dizge.
Sürüm Bilgisi
| Sürüm: | Açıklama |
|---|---|
| 4.1.0 | İsteğe bağlı karakterler değiştirgesi eklendi. |
Örnekler
Örnek 1 - rtrim() örneği
<?php
$metin = "\t\tBir kaç kelam :) ... ";
$ikil = "\x09Örnek dizge\x0A";
$selam = "Merhaba Dünya";
var_dump($metin, $ikil, $selam);
print "\n";
$kırpık = rtrim($metin);
var_dump($kırpık);
$kırpık = rtrim($metin, " \t.");
var_dump($kırpık);
$kırpık = rtrim($selam, "aerMy");
var_dump($kırpık);
// $ikil'in başındaki ve sonundaki ASCII denetim karakterlerini budar
// (0'dan 31'e kadar, 0 ve 31 dahil)
$temiz = rtrim($ikil, "\x00..\x1F");
var_dump($temiz);
?>
Yukarıdaki örneğin çıktısı:
string(25) " Bir kaç kelam :) ... " string(14) " Örnek dizge " string(14) "Merhaba Dünya" string(23) " Bir kaç kelam :) ..." string(19) " Bir kaç kelam :)" string(12) "Merhaba Dün" string(13) " Örnek dizge"
add a note
User Contributed Notesrtrim
harmor
04-Apr-2008 11:05
04-Apr-2008 11:05
YAS
08-May-2006 01:01
08-May-2006 01:01
To remove an unwanted character - example "." - if exist or not.
The example above doesn't include the case where there is no "."
If there is not "." at the example above the last word will be deleted.
Have fun with this code.
<?php
$text = "This string contains. some unwanted characters on the end .";
$text = trim($text);
$last = $text{strlen($text)-1};
if (!strcmp($last,"."))
{
$text = rtrim($text, 'a..z');
$text = rtrim($text, '.');
}
?>
gbelanger at exosecurity dot com
17-Feb-2006 10:31
17-Feb-2006 10:31
True, the Perl chomp() will only trim newline characters. There is, however, the Perl chop() function which is pretty much identical to the PHP rtrim()
---
Here's a quick way to recursively trim every element of an array, useful after the file() function :
<?php
# Reads /etc/passwd file an trims newlines on each entry
$aFileContent = file("/etc/passwd");
foreach ($aFileContent as $sKey => $sValue) {
$aFileContent[$sKey] = rtrim($sValue);
}
print_r($aFileContent);
?>
Unimagined at UnaimaginedDesigns dot Com
16-Jan-2005 08:49
16-Jan-2005 08:49
I needed a way to trim all white space and then a few chosen strings from the end of a string. So I wrote this class to reuse when stuff needs to be trimmed.
<?php
class cleaner {
function cleaner ($cuts,$pinfo) {
$ucut = "0";
$lcut = "0";
while ($cuts[$ucut]) {
$lcut++;
$ucut++;
}
$lcut = $lcut - 1;
$ucut = "0";
$rcut = "0";
$wiy = "start";
while ($wiy) {
if ($so) {
$ucut = "0";
$rcut = "0";
unset($so);
}
if (!$cuts[$ucut]) {
$so = "restart";
} else {
$pinfo = rtrim($pinfo);
$bpinfol = strlen($pinfo);
$tcut = $cuts[$ucut];
$pinfo = rtrim($pinfo,"$tcut");
$pinfol = strlen($pinfo);
if ($bpinfol == $pinfol) {
$rcut++;
if ($rcut == $lcut) {
unset($wiy);
}
$ucut++;
} else {
$so = "restart";
}
}
}
$this->cleaner = $pinfo;
}
}
$pinfo = "Well... I'm really bored...<br /><br> \n\t <br><br /><br> \r\r <br>\r<br /><br>\r \n<br> <br />\t";
$cuts = array('\n','\r','\t',' ',' ',' ','<br />','<br>','<br/>');
$pinfo = new cleaner($cuts,$pinfo);
$pinfo = $pinfo->cleaner;
print $pinfo;
?>
That class will take any string that you put in the $cust array and remove it from the end of the $pinfo string. It's useful for cleaning up comments, articles, or mail that users post to your site, making it so there's no extra blank space or blank lines.
todd at magnifisites dot com
20-Aug-2003 01:19
20-Aug-2003 01:19
This shows how rtrim works when using the optional charlist parameter:
rtrim reads a character, one at a time, from the optional charlist parameter and compares it to the end of the str string. If the characters match, it trims it off and starts over again, looking at the "new" last character in the str string and compares it to the first character in the charlist again. If the characters do not match, it moves to the next character in the charlist parameter comparing once again. It continues until the charlist parameter has been completely processed, one at a time, and the str string no longer contains any matches. The newly "rtrimmed" string is returned.
<?php
// Example 1:
rtrim('This is a short short sentence', 'short sentence');
// returns 'This is a'
// If you were expecting the result to be 'This is a short ',
// then you're wrong; the exact string, 'short sentence',
// isn't matched. Remember, character-by-character comparison!
// Example 2:
rtrim('This is a short short sentence', 'cents');
// returns 'This is a short short '
?>
HW
06-Jun-2003 01:32
06-Jun-2003 01:32
<?php
$text = "This string contains some unwanted characters on the end.";
$text1 = rtrim($text, 'a..z');
$text1 = rtrim($text1, '.');
echo $text1; // only the '.' is trimmed.
$text2 = rtrim($text, 'a..z.');
echo $text2; // The whole last word is trimmed.
?>