diffrence between mb_substr and mb_substr
example:
mb_strcut('I_ROHA', 1, 2) returns 'I_'. Treated as byte stream.
mb_substr('I_ROHA', 1, 2) returns 'ROHA' Treated as character stream.
# 'I_' 'RO' 'HA' means multi-byte character
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_strcut — Get part of string
$str
, int $start
[, int $length = NULL
[, string $encoding = mb_internal_encoding()
]] )mb_strcut() extracts a substring from a string similarly to mb_substr(), but operates on bytes instead of characters. If the cut position happens to be between two bytes of a multi-byte character, the cut is performed starting from the first byte of that character. This is also the difference to the substr() function, which would simply cut the string between the bytes and thus result in a malformed byte sequence.
strThe string being cut.
start
If start is non-negative, the returned string
will start at the start'th byte position in
string, counting from zero. For instance,
in the string 'abcdef', the byte at
position 0 is 'a', the
byte at position 2 is
'c', and so forth.
If start is negative, the returned string
will start at the start'th byte
from the end of string.
lengthLength in bytes. If omitted or NULL is passed, extract all bytes to the end of the string.
encodingThe encoding
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.
mb_strcut() returns the portion of
str specified by the
start and
length parameters.
| Version | Description |
|---|---|
| 5.4.8 |
Passing NULL as length
extracts all bytes to the end of the string. Prior to this version
NULL was treated the same as 0.
|
diffrence between mb_substr and mb_substr
example:
mb_strcut('I_ROHA', 1, 2) returns 'I_'. Treated as byte stream.
mb_substr('I_ROHA', 1, 2) returns 'ROHA' Treated as character stream.
# 'I_' 'RO' 'HA' means multi-byte character
What the manual and the first commenter are trying to say is that mb_strcut uses byte offsets, as opposed to mb_substr which uses character offsets.
Both mb_strcut and mb_substr appear to treat negative and out-of-range offsets and lengths in the basically the same way as substr. An exception is that if start is too large, an empty string will be returned rather than FALSE. Testing indicates that mb_strcut first works out start and end byte offsets, then moves each offset left to the nearest character boundary.
function cut_sense($matne_harf, $l_harf ,$return=1 ) {
if ( strlen($matne_harf) > $l_harf){
$end='...';
}else{
$end='';
}
if ( function_exists('mb_strcut') ){
$matne_harf = mb_strcut ( $matne_harf, 0 , $l_harf , "UTF-8" );
}else{
$matne_harf =substr($matne_harf, 0, $l_harf);
}
$text=''.$matne_harf.''.$end.'';
if ( $return == 1){
return $text;
}else{
print $text;
}
}
Iranian php programmer (farhad zand +989383015266)