You can use mb_strlen() to get the byte length using a encoding that only have byte-characters, without worring about multibyte or singlebyte strings. For example, as drake127 saids in a comment of mb_strlen, you can use ‘8bit’ encoding: <?php $string = ‘Cién cañones por banda’; echo mb_strlen($string, ‘8bit’); ?> You can have problems using strlen … Read more
You can use the length filter: {% if some_var|length > 1 %}
varchars and equality are thorny in TSQL. The LEN function says: Returns the number of characters, rather than the number of bytes, of the given string expression, excluding trailing blanks. You need to use DATALENGTH to get a true byte count of the data in question. If you have unicode data, note that the value … Read more
For MongoDB 3.6 and newer: The $expr operator allows the use of aggregation expressions within the query language, thus you can leverage the use of $strLenCP operator to check the length of the string as follows: db.usercollection.find({ name: { $exists: true }, $expr: { $gt: [{ $strLenCP: ‘$name’ }, 40] } }) For MongoDB 3.4 … Read more
If you just want to use AWT, then use Graphics.getFontMetrics (optionally specifying the font, for a non-default one) to get a FontMetrics and then FontMetrics.stringWidth to find the width for the specified string. For example, if you have a Graphics variable called g, you’d use: int width = g.getFontMetrics().stringWidth(text); For other toolkits, you’ll need to … Read more
If I understand correctly you want to limit a string to 10 characters? var str=”Some very long string”; if(str.length > 10) str = str.substring(0,10); Something like that?
Use the built-in functions for length and max on the description column: SELECT MAX(LEN(DESC)) FROM table_name; Note that if your table is very large, there can be performance issues.
If you’re using a std::string, call length(): std::string str = “hello”; std::cout << str << “:” << str.length(); // Outputs “hello:5” If you’re using a c-string, call strlen(). const char *str = “hello”; std::cout << str << “:” << strlen(str); // Outputs “hello:5” Or, if you happen to like using Pascal-style strings (or f***** strings … Read more
If you are talking about the length of the string, you can use len(): >>> s=”please answer my question” >>> len(s) # number of characters in s 25 If you need the size of the string in bytes, you need sys.getsizeof(): >>> import sys >>> sys.getsizeof(s) 58 Also, don’t call your string variable str. It … Read more
You can try RuneCountInString from the utf8 package. returns the number of runes in p that, as illustrated in this script: the length of “World” might be 6 (when written in Chinese: “世界”), but the rune count of “世界” is 2: package main import “fmt” import “unicode/utf8” func main() { fmt.Println(“Hello, 世界”, len(“世界”), utf8.RuneCountInString(“世界”)) } … Read more