15 static public function subStr($a_str, $a_start, $a_length = NULL)
17 if (function_exists(
"mb_substr"))
21 if ($a_length === null)
23 $a_length = mb_strlen($a_str,
"UTF-8");
26 return mb_substr($a_str, $a_start, $a_length,
"UTF-8");
30 return substr($a_str, $a_start, $a_length);
34 static function strPos($a_haystack, $a_needle, $a_offset = NULL)
36 if (function_exists(
"mb_strpos"))
38 return mb_strpos($a_haystack, $a_needle, $a_offset,
"UTF-8");
42 return strpos($a_haystack, $a_needle, $a_offset);
46 static function strIPos($a_haystack, $a_needle, $a_offset = NULL)
48 if (function_exists(
"mb_stripos"))
50 return mb_stripos($a_haystack, $a_needle, $a_offset,
"UTF-8");
54 return stripos($a_haystack, $a_needle, $a_offset);
79 static public function strLen($a_string)
81 if (function_exists(
"mb_strlen"))
83 return mb_strlen($a_string,
"UTF-8");
87 return strlen($a_string);
93 if (function_exists(
"mb_strtolower"))
95 return mb_strtolower($a_string,
"UTF-8");
99 return strtolower($a_string);
105 $a_string = (string) $a_string;
106 if (function_exists(
"mb_strtoupper"))
108 return mb_strtoupper($a_string,
"UTF-8");
112 return strtoupper($a_string);
123 if (is_object($ilCollator))
146 static public function shortenText($a_string,$a_start_pos,$a_num_bytes,$a_encoding =
'UTF-8')
148 return mb_strcut($a_string, $a_start_pos, $a_num_bytes, $a_encoding);
156 if (function_exists(
"mb_detect_encoding"))
158 if (mb_detect_encoding($a_str,
"UTF-8",
true) ==
"UTF-8")
169 for($i=0; $i<$len; $i++){
172 if(($c >= 254))
return false;
173 elseif($c >= 252) $bits=6;
174 elseif($c >= 248) $bits=5;
175 elseif($c >= 240) $bits=4;
176 elseif($c >= 224) $bits=3;
177 elseif($c >= 192) $bits=2;
179 if(($i+$bits) > $len)
return false;
183 if($b < 128 || $b > 191)
return false;
201 static public function strPosAll($a_haystack, $a_needle)
203 $positions = array();
205 while(is_int($pos = strpos($a_haystack, $a_needle, $cpos)))
218 if (is_int(strpos($a_str, $a_old)))
220 $a_str = substr_replace ($a_str, $a_new, strpos($a_str, $a_old), strlen($a_old));
231 return preg_replace(
'/(^|[a-z])([A-Z])/e',
'strtolower(strlen("\\1") ? "\\1_\\2" : "\\2")', $value);
245 for($i = 0; $i < strlen($a_str); $i++)
247 $bytes[] = ord($a_str[$i]);
260 include_once(
"./include/Unicode/UtfNormal.php");
static shortenText($a_string, $a_start_pos, $a_num_bytes, $a_encoding='UTF-8')
Shorten text to the given number of bytes.
static convertUpperCamelCaseToUnderscoreCase($value)
Convert a value given in camel case conversion to underscore case conversion (e.g.
static strPos($a_haystack, $a_needle, $a_offset=NULL)
static strToLower($a_string)
Multi byte sensitive string functions.
toNFC( $string)
Convert a UTF-8 string to normal form C, canonical composition.
normalizeUtf8String($a_str)
Normalize UTF8 string.
static getBytesForString($a_str)
Return string as byte array Note: Use this for debugging purposes only.
static strToUpper($a_string)
static strIPos($a_haystack, $a_needle, $a_offset=NULL)
static subStr($a_str, $a_start, $a_length=NULL)
static strCmp($a, $b)
Compare two strings.
static strPosAll($a_haystack, $a_needle)
Get all positions of a string.
static replaceFirsOccurence($a_old, $a_new, $a_str)
Replaces the first occurence of $a_old in $a_str with $a_new.
static isUtf8($a_str)
Check whether string is utf-8.