How to use php ftell function

ftell() function is a built-in function in PHP used to return the current position in an open file. The syntax is ftell(file). This function takes file as a parameter and returns the current file pointer position when successful. If it fails, it returns FALSE.

php How to use the ftell() function?

php The ftell() function opens the current position in the file.

Syntax:

ftell(file)

Parameters:

● file: required. Specifies the open file to be checked.

Return value: Returns the current position of the file pointer, or FALSE if failed.

Let’s take a look at how to use the php ftell() function through an example.

Example

<?php
$file = fopen("test.txt","r");
// print current position
echo ftell($file);
// change current position
fseek($file,"15");
// print current position again
echo "<br />" . ftell($file);
fclose($file);
?>

Output:

0
15

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