strncmp
Simple code to define symbol (@) in the string
<?php
$name = "username@example.com";
if (strpbrk($name, '@') != FALSE) {
echo "There is @";
}
else {
echo "There isn't @";
}
?>
strpbrk
(PHP 5)
strpbrk — Belirtilen karakterleri bir dizge içinde arar
Açıklama
string strpbrk
( string
$dizge
, string $karakterler
)
strpbrk() işlevi dizge
içinde karakterler'den birini bulmaya çalışır.
Değiştirgeler
-
dizge -
Karakterlerin aranacağı dizge.
-
karakterler -
Karakterler harf büyüklüğüne duyarlı olarak aranır.
Dönen Değerler
Bulunan karakterle başlayan dizgeyi döndürür, aranan hiçbir karakter
bulunamazsa FALSE döner.
Örnekler
Örnek 1 - strpbrk() örneği
<?php
$text = 'This is a Simple text.';
// ilk eşleşen 'i'den itibaren çıktılanacağından
// "is is a Simple text." basılır
echo strpbrk($text, 'mi');
// İşlev harf büyüklüğüne duyarlı arama yaptığından
// "Simple text." basılacaktır
echo strpbrk($text, 'S');
?>
add a note
User Contributed Notes
strpbrk
b dot pleshka at gmail dot com
04-Jan-2012 12:55
root at mantoru dot de
07-Feb-2008 07:55
A simpler (and slightly faster) strpbrkpos function:
<?php
function strpbrkpos($haystack, $char_list) {
$result = strcspn($haystack, $char_list);
if ($result != strlen($haystack)) {
return $result;
}
return false;
}
?>
pzb at novell dot com
28-Jul-2007 04:09
One undocumented requirement:
If $char_list contains null characters ("\0"), only characters before the null will be used. While PHP handles nulls in strings just fine, the data is passed to a function that is not null safe.
Evan
03-Jul-2007 08:33
If you're not looking to duplicate the rest of the string, but instead just want the offset, in the spirit of the str*pos() functions:
<?php
function strpbrkpos($s, $accept) {
$r = FALSE;
$t = 0;
$i = 0;
$accept_l = strlen($accept);
for ( ; $i < $accept_l ; $i++ )
if ( ($t = strpos($s, $accept{$i})) !== FALSE )
if ( ($r === FALSE) || ($t < $r) )
$r = $t;
return $v;
}
?>
user at example dot net
03-Jul-2007 12:25
For PHP versions before 5:
<?php
function strpbrk( $haystack, $char_list )
{
$strlen = strlen($char_list);
$found = false;
for( $i=0; $i<$strlen; $i++ ) {
if( ($tmp = strpos($haystack, $char_list{$i})) !== false ) {
if( !$found ) {
$pos = $tmp;
$found = true;
continue;
}
$pos = min($pos, $tmp);
}
}
if( !$found ) {
return false;
}
return substr($haystack, $pos);
}
?>
Sadly this is about ten times slower than the native implementation.
jamie dot mcardle at stpetersgv dot org
07-Jun-2007 02:54
I wanted to use this function to look for an @ in a db entry - didn't work because I don't have this version of PHP yet, but I thought I had my issue licked. Darn it.
aidan at php dot net
21-Aug-2004 01:11
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