Unlink and @ unlink in php? Some PHP files are deleted using unlink, and some PHP files are deleted using @ unlink? What are the differences between the two? Sometimes @ unlink cannot be used but unlink cannot be used. it is only used to control
Define and use the unlink () function to delete a file. If successful, returns True, which returns false if it fails. The syntax unlink (filename,context) parameter describes the filename required. Specifies the files to be deleted. The context is
In PHP we want to delete a specified file we can use the unlink function to implement, below I give you detailed description of the unlink function to delete a specified file of the specific method, there is a need to know the friend can refer
Usage
The Nlink () function deletes the file.
If successful, returns True, and returns False if it fails.
Grammar
Unlink (Filename,context)
Example:
The code is as follows
Copy Code
$tmpdata =
Each file can obtain the file information through a struct stat structure, where one member St_nlink the number of links representing the file.When using the shell's Touch command or open a nonexistent file with O_creat in the program, the number of
The function link, linkat, unlink, Unlinkat, and remove instance programs open a file and then unlink it. The process that executes the program then sleeps for 30 seconds and then terminates.
#include "apue.h"
#include
int
Each file can obtain the file information through a struct stat structure, where one member St_nlink the number of links representing the file.When using the shell's Touch command or open a nonexistent file with O_creat in the program, the number of
Each file can obtain the file information through a struct stat struct. One of the member st_nlink represents the number of links to the file.
Struct stat {unsigned longst_dev;/* device. */unsigned longst_ino;/* file serial number. */unsigned
Usage of unlink (), mkdir (), and rmdir () in php
Unlink () function use instance
// Use the unlink function to delete an object
$ Filename = "data.txt"; // defines the variable
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.