Elective Courses
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PHP ftell() Function
Definition and Usage
ftell() function in the current position of the opened file.
The function returns the current position of the file pointer. If it fails, it returns false.file pointerSyntax
| ) | Parameter |
|---|---|
| file pointer | Description |
Required. Specifies the open file to be checked.
Description file pointer file must be valid and must point to a file opened through fopen() or popen()
Successfully opened file.
In append mode (open file with parameter "a"), ftell() will return an undefined error.
Example
<?php
$file = fopen("test.txt","r");
echo ftell($file);
// Output current position
// Change current position
// Output current position again
echo ftell($file);
fclose($file);
?>
Output:
0 15
