Home > php教程 > PHP源码 > body text

PHP file itself

大家讲道理
Release: 2016-11-11 09:37:21
Original
1496 people have browsed it

<?php  
//文件本身的操作  
//copy()复制文件  
//unlink()删除文件  
//ftruncate()将文件截断到指定的长度  
//rename()重命名文件或目录  
if(copy("data.txt","data_bak.txt")){//复制文件实例  
echo "文件复制成功<br />";  
}else{  
echo "文件复制失败<br />";  
}  
 if(file_exists("data_bak.txt")){//删除文件实例  
if(unlink("data_bak.txt")){  
echo "文件删除成功<br />";  
}else{  
echo "文件删除失败<br />";  
}  
}else{  
echo "目标文件不存在<br />";  
}   
 if(rename("file.jpg","file.txt")){//重命名文件实例  
echo "文件重命名成功<br />";  
}else{  
echo "文件重命名失败<br />";  
}   
$fp=fopen("data_bak.txt","r+") or die("文件打开失败");  
if(ftruncate($fp,1024)){  
echo "文件截取成功";  
}else{  
echo "文件截取失败";  
}  
fclose($fp);  
?>
Copy after login

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!