- Tags: PHP File System
- Categories: PHP Functions, PHP Reference, Reference
Quick Reference
The PHP fseek() function seeks in an open file by moving the file pointer from its current position to a new position, forward or backward, in bytes.
<?php
$file = fopen('test.txt', 'r');
// read first line
echo fgets($file);
// move back to beginning of the file
fseek($file, 0);
fclose($file);
?>
Output
// reads the first line from the open file and then move the file pointer to the beginning of the file
Syntax
fseek(file, offset, whence)
Parameters
| Parameter | Description |
|---|---|
| file | Specifies the open file to seek in (required) |
| offset | Specifies the new position in bytes from the beginning of the file (required) |
| whence | Possible values:
|
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PHP NOTES:
- When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
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