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Programming PHP, 3rd Edition by Peter MacIntyre, Kevin Tatroe, Rasmus Lerdorf

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Name

substr

Synopsis

string substr(string string, int offset[, int length])

Returns the substring of string. If offset is positive, the substring starts at that character; if it is negative, the substring starts at the character offset characters from the string’s end. If length is given and is positive, that many characters from the start of the substring are returned. If length is given and is negative, the substring ends length characters from the end of string. If length is not given, the substring contains all characters to the end of string.

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