The fgetss() function in PHP is an inbuilt function which is used to return a line from an open file after removing HTML and PHP tags from the respective file.
The fegtss() function stops returning at a specified length, on end of file(EOF) or on a new line, whichever comes first.
The file to be read and the number of bytes to be read are sent as parameters to the fgetss() function and it returns a string of length -1 bytes from the file pointed by the user. It returns False on failure.
Syntax:
fgetss(file, length, tags)
Parameters Used:
The fgetss() function in PHP accepts three parameter.
- file: It specifies the file from which characters have to be extracted.
- length: It specifies the number of bytes to be read by the fgetss() function. The default value is 1024 bytes.
- tags: It is an optional parameter which is used to specify tags which should not be striped.
Return Value:
It returns a string of length -1 bytes from the file pointed by the user after removing all the HTML and PHP tags.
Errors And Exception:
- The function is not optimised for large files since it reads a single line at a time, and it may take a lot of time to completely read a long file.
- The buffer must be cleared if the fgetss() function is used multiple times.
- The fgetss() function returns Boolean False but many times it happens that it returns a non-Boolean value which evaluates to False.
Below programs illustrate the fgetss() function.
Suppose there is a file named “gfg.txt” which consists of :
Program 1
PHP
<?php// PHP program to illustrate the fgetss() function//file is opened using fopen() function$my_file = fopen("gfg.txt", "rw");// Prints a single line from the opened file pointer // after removing HTML and PHP tagsecho fgetss($my_file);// file is closed using fclose() functionfclose($my_file);?> |
Output:
This is the first line.
Program 2
PHP
<?php// PHP program to illustrate the fgetss() function// file is opened using fopen() function$my_file = fopen("gfg.txt", "rw");// Prints 1024 bytes from the opened file pointer // without striping "p" and "strong" tagsecho fgetss($my_file, 1024, "<p>, <strong>");// file is closed using fclose() functionfclose($my_file);?> |
Output:
Reference:
http://php.net/manual/en/function.fgetss.php
