php ftell() function returns the read/write position of the file pointer.
php ftell() function Syntax
Function: Open the current position in the file.
Syntax:
ftell(file)
Parameters:
file Required. Specifies the open file to be checked.
Note: The file pointer file must be valid and must point to a file successfully opened by fopen() or popen().
php ftell() function example
<?php $file = fopen("./test.txt","r"); // 输出当前位置 echo ftell($file); ?>
This article is an introduction to the PHP ftell function. I hope it will be helpful to friends in need!
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