PHP unlink() Function Usage and Example

PHP Filesystem 参考手册

The unlink() function can delete a file, returning true on success and false on failure.

Syntax

bool unlink ( string $filename [, resource $context ] )

This function can delete the filename, similar to the Unix C unlink() function.

Example 1

<?php
　　　$file = "/PhpProject/php/sample.txt";
　　　if(!unlink($file)) {
　　　　　　echo("Error occurred while deleting $file");
　　　} else {
　　　　　　echo("Successfully deleted $file");
　　　}
?>

Output result

Successfully deleted /PhpProject/php/sample.txt

Example 2

<?php
　　　$fh = fopen("/PhpProject/test.html", "a");
　　　fwrite($fh, "<h1>Hello world!</h1>");
　　　fclose($fh);
　　　unlink("/PhpProject1/test.html");
?>

Output result

file deleted successfully

PHP Filesystem 参考手册