PHP | fputs( ) Function

0 0 1 minute read

The fputs() function in PHP is an inbuilt function which is used to write to an open file.
The fputs() function stops at the end of the file or when it reaches the specified length passed as a parameter, whichever comes first.
The file, string and the length which has to be written are sent as parameters to the fputs() function and it returns the number of bytes written on success, or FALSE on failure.
The fputs() function is an alias of the fwrite() function.

Syntax:

fputs(file, string, length)

Parameters Used:
The fputs() function in PHP accepts three parameters.

file: It is a mandatory parameter which specifies the file.
string : It is a mandatory parameter which specifies the string to be written.
length : It is an optional parameter which specifies the maximum number of bytes to be written.

Return Value:
It returns the number of bytes written on success, or False on failure.

Exceptions

Both binary data, like images and character data can be written with this function since fputs() is binary-safe.
fputs() function without the length parameter writes all data up to the end but it does not include the first 0th byte it encounters.

Examples:

Input : $myfile = fopen("gfg.txt", "w");
        echo fputs($myfile, "Geeksforzambiatek is a portal of zambiatek!");
        fclose($myfile);
Output : 35

Input : $myfile = fopen("gfg.txt", "w");
        echo fputs($myfile, "Geeksforzambiatek is a portal of zambiatek!", 13);
        fclose($myfile);
        fopen("gfg.txt", "r");
        echo fread($myfile, filesize("gfg.txt"));
        fclose($myfile);
Output : Geeksforzambiatek

Below programs illustrate the fputs() function:

Program 1

<?php 
// Opening a file 
$myfile = fopen("gfg.txt", "w"); 
  
// writing content to a file using fputs 
echo fputs($myfile, "Geeksforzambiatek is a portal of zambiatek!"); 
  
// closing the file 
fclose($myfile); 
?> 

Output:

Program 2

<?php 
// Opening a file 
$myfile = fopen("gfg.txt", "w"); 
  
// writing content to a file with a specified string length using fputs 
echo fputs($myfile, "Geeksforzambiatek is a portal of zambiatek!", 13); 
  
// closing the file 
fclose($myfile); 
  
//opening the same file to read its contents         
fopen("gfg.txt", "r"); 
echo fread($myfile, filesize("gfg.txt")); 
  
// closing the file 
fclose($myfile); 
?> 