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If length is omitted, the substring starting from start until the end of the string will be returned. Example #2 Using a negative length.
I would like to use substr() function in order to get the chain of characters from the 1. to the last, without 0. Should I do sth like this: string str = xyz.substr(1, xyz.length()); or (xyz.length() - 1) ?
Метод substr() возвращает указанное количество символов из строки, начиная с указанной позиции.
Если этот параметр не указан, функция SUBSTR вернет всю строку. Примечание. Если start_position равно 0, то функция SUBSTR примет
The substr() method extracts parts of a string, beginning at the character at the specified position, and returns the specified number of characters. Tip: To extract characters from the end of the string, use a negative start number (This does not work in IE 8 and earlier).
The SUBSTR function takes a character matrix as an argument (along with starting positions and lengths) and produces a character matrix with the same dimensions as the argument. Elements of the result matrix are substrings of the corresponding argument elements.
Портал по PHP, MySQL и другим веб-технологиям, Форум PHP программистов, substr.
Метод substr начинает собирать строку с позиции start и заканчивает, когда соберет length или дойдет до конца строки. Если start больше или равен длине строки, то substr возвращает пустую строку.
ASCII Table. Reset. Dec. Hex. Binary. HTML. Char. Description. 0. 00. 00000000. � NUL. Null. 1. 01. 00000001.  SOH. Start of Header. 2. 02. 00000010.  STX. Start of Text. 3. 03. 00000011.  ETX. End of Text. 4. 04. 00000100.  EOT. End of Transmission. 5. 05. 00000101.  ENQ.