PHP str_rot13() Function Last Updated : 21 Jun, 2023 Comments Improve Suggest changes Like Article Like Report The function str_rot13() is a built-in function in php. This function accepts a string and shifts every alphabet present in the string by 13 places in the alphabet. The function leaves numeric and non-alphabetical characters untouched. By passing an encoded string as argument, the function will return the original string. Syntax: str_rot13 ( $string ) Parameter: This function accepts only a string parameter which can be observed from the above syntax. The description of the parameter is as follows. $string : This is the only mandatory parameter of the function. This parameter passes a string to the function which needs to be encoded. Return Value: The function returns the encoded string. Examples: Input : $string = "Geeks for Geeks" Output : Trrxf sbe Trrxf Input : $string = "Trrxf sbe Trrxf" Output : Geeks for Geeks Below program illustrate the str_rot13() function in PHP: php <?php echo str_rot13("Geeks for Geeks"); echo "\n"; echo str_rot13("Trrxf sbe Trrxf"); ?> Output: Trrxf sbe Trrxf Geeks for Geeks Reference: http://php.net/manual/en/function.str-rot13.php Comment More infoAdvertise with us Next Article PHP str_rot13() Function R RICHIK BHATTACHARJEE Improve Article Tags : Misc Web Technologies PHP PHP-string Practice Tags : Misc Similar Reads PHP addcslashes() Function The addcslashes() function is a built-in function in PHP. The addcslashes() function is used to add backslashes before some specified characters in a given string. Syntax: string addcslashes($string, $characters) Parameters: This function accepts two parameters as shown in the above syntax and are d 2 min read PHP addslashes() Function The addslashes() function is an inbuilt function in PHP and it returns a string with backslashes in front of predefined characters. It does not take any specified characters in the parameter. The predefined characters are: single quote (')double quote (")backslash (\)NULL Note: The addslashes() func 2 min read PHP bin2hex() Function The bin2hex() function in PHP converts a string to hexadecimal values. The conversion is done byte-wise with the high-nibble first. Note: It is not for converting strings representing binary digits into hexadecimal. Syntax: bin2hex($string) Parameters: This function accepts a single parameter $strin 1 min read PHP chop() Function The chop() in PHP is used to remove white spaces or any other specified characters from the end of a string. Syntax: string chop($string, $character) Parameters: This function accepts two parameters as shown in the above syntax and are described below: $string : It is used to specify the string whic 2 min read PHP chr() Function The chr() function is a built-in function in PHP and is used to convert a ASCII value to a character. It accepts an ASCII value as a parameter and returns a string representing a character from the specified ASCII value. The ASCII value can be specified in decimal, octal, or hex values. Octal values 2 min read PHP chunk_split() Function The chunk_split() function is a built-in function in PHP. The chunk_split() function is used to split a string into smaller chunks of a specific length. Syntax: string chunk_split($string, $length, $end) Parameters: This function accepts three parameters as shown in the above syntax and are describe 2 min read PHP convert_uudecode() Function The convert_uudecode() is a built in function in PHP. This function decode a uuencoded string encoded using convert_uuencode() function. The uudecode() functions makes string into printable form. Syntax: string convert_uudecode(string) Parameters: The uuencoded string which will be decoded. Return T 1 min read PHP convert_uuencode() Function The convert_uuencode() is a built-in function in PHP. The convert_uuencode() function encodes a string using the uuencode algorithm. Uuencode encoding translates all strings (including binary data) into printable characters which makes them safe for network transmissions. Syntax: String convert_uuen 1 min read PHP count_chars() Function The count_chars() is an inbuilt function in PHP and is used to perform several operations related to string like the number of an ASCII character occurs in a string. Syntax : count_chars(string,return_mode); Parameters: The count_chars() function takes two parameters string and return_mode as explai 2 min read PHP crc32() Function The crc32() function helps us to calculate a 32-bit crc or cyclic redundancy checksum polynomial for a string. The function uses the CRC32 algorithm.This function can be used to validate data integrity. However, to ensure that we get the correct string representation from the crc32() function, we ne 2 min read Like