substr Return part of a string &reftitle.description; stringsubstr stringstring intstart intlength Returns the portion of string specified by the start and length parameters. &reftitle.parameters; string The input string. Must be one character or longer. start If start is non-negative, the returned string will start at the start'th position in string, counting from zero. For instance, in the string 'abcdef', the character at position 0 is 'a', the character at position 2 is 'c', and so forth. If start is negative, the returned string will start at the start'th character from the end of string. If string is less than start characters long, &false; will be returned. ]]> length If length is given and is positive, the string returned will contain at most length characters beginning from start (depending on the length of string). If length is given and is negative, then that many characters will be omitted from the end of string (after the start position has been calculated when a start is negative). If start denotes the position of this truncation or beyond, &false; will be returned. If length is given and is 0, &false; or &null;, an empty string will be returned. If length is omitted, the substring starting from start until the end of the string will be returned. ]]> &reftitle.returnvalues; Returns the extracted part of string; &return.falseforfailure;, or an empty string. &reftitle.changelog; &Version; &Description; 7.0.0 If string is equal to start characters long, an empty string will be returned. Prior to this version, &false; was returned in this case. 5.2.2 - 5.2.6 If the start parameter indicates the position of a negative truncation or beyond, false is returned. Other versions get the string from start. &reftitle.examples; ]]> ]]> &example.outputs.7; &example.outputs.5; &reftitle.errors; Returns &false; on error. ]]> &reftitle.seealso; strrchr substr_replace preg_match trim mb_substr wordwrap String access and modification by character