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HomeBackend DevelopmentPHP Tutorialphp file create cut copy commonly used functions

This article mainly introduces the commonly used functions for creating, cutting and copying PHP files. It has certain reference value. Now I share it with you. Friends in need can refer to it.

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);
/*
 * 注 touch 如文件已存在,设定文件的访问和修改时间 如果文件不存在,则会被创建。
 * touch(文件名,时间戳); 时间戳默认为当前时间 返回布尔值
 * */
//
//创建文件 123.txt(如果文件不存在)
if(!file_exists(&#39;123.txt&#39;)){
    touch(&#39;123.txt&#39;);
};
/*
 * 删除文件unlink(文件名)返回布尔值
 * */
//删除文件123.txt(如果文件存在)
if(file_exists(&#39;123.txt&#39;)){
    unlink(&#39;123.txt&#39;);
};
/*
 * rename重命名文件或剪切文件
 * rename(文件名,新文件名) 返回布尔值
 * */
if(!file_exists(&#39;aaa.txt&#39;)){//aaa.text文件不存则创建
   touch(&#39;aaa.txt&#39;);
}
rename(&#39;aaa.txt&#39;,&#39;bbb.txt&#39;);//把aaa.text 重命名为bbb.text
if(!file_exists(&#39;test&#39;)){//当前目录创建test文件夹
    mkdir(&#39;test&#39;,777);
}
//DIRECTORY_SEPARATOR 目录分隔符
rename(&#39;bbb.txt&#39;,&#39;test&#39;.DIRECTORY_SEPARATOR.&#39;bbb.txt&#39;);//将bbb.text移动到test文件夹*/
/*
 * copy(路径,目标路径)复制文件 返回布尔值
 * 如果目标文件已存在,将会被覆盖。
 *
 * */
copy(&#39;test&#39;.DIRECTORY_SEPARATOR.&#39;bbb.txt&#39;,&#39;bbb.txt&#39;); //将test目录的bbb.txt文件拷贝到当前目录
//拷贝远程图片 要在php.ini 中开启 allow_url_fopen (默认是开启的)
copy(&#39;http://c.hiphotos.baidu.com/baike/pic/item/91ef76c6a7efce1b27893518a451f3deb58f6546.jpg&#39;,&#39;./test/a.jpg&#39;);
/**
 * 创建文件方法
 * @method  createFile
 * @param string $filename 文件名
 * @return bool
 */
function createFile($filename){
    //检测文件是否存在 不存在则创建
    if(file_exists($filename)){
        return false;
    }
    //检测目录是否存在不存在则创建
    if(!is_dir(dirname($filename))){
        mkdir(dirname($filename));
    }
    //创建文件 touch 创建 或用 file_put_contents 创建
    if(touch($filename)){
        return true;
    }
 /*   if(file_put_contents($filename,&#39;&#39;)!==false){
        return true;
    }*/
    return false;
}
/**
 * 删除文件方法
 * @method  deleteFile
 * @param string $filename 文件名
 * @return bool
 */
function deleteFile($filename){
    //检测文件存在
    if(!file_exists($filename) ){
        return false;
    }
    if(unlink($filename)){
        return true;
    }
    return false;
}
/**
 * 复制文件方法
 * @method  copyFile
 * @param string $filename 源文件名
 * @param string $dest 目标目录
 * @return bool
 */
function copyFile($filename,$dest){
    //检测文件是否存在
    if(!file_exists($filename)){
        return false;
    }
    //检测目标目录是否存在 不存在则创建
    if(!is_dir($dest)){
        mkdir($dest,0777,true);
    }
    //复制后的文件路径
    $newFilePath=$dest.DIRECTORY_SEPARATOR.basename($filename);
    //检测目标路径是否已存在同名文件
    if(file_exists($newFilePath)){
        return false;
    }
    //复制文件
    if(copy($filename,$newFilePath)){
        return true;
    };
    return false;
}
/**
 * 剪切文件方法
 * @method  cutFile
 * @param string $filename 源文件名
 * @param string $dest 目标目录
 * @return bool
 */
function cutFile($filename,$dest){
    //检测文件是否存在
    if(!file_exists($filename)){
        return false;
    }
    //检测目标目录是否存在 不存在则创建
    if(!is_dir($dest)){
        mkdir($dest,0777,true);
    }
    //剪切后的文件路径
    $newFilePath=$dest.DIRECTORY_SEPARATOR.basename($filename);
    //检测目标路径是否已存在同名文件
    if(file_exists($newFilePath)){
        return false;
    }
    //剪切文件
    if(rename($filename,$newFilePath)){
        return true;
    };
    return false;
}
/**
 * 重命名文件方法
 * @method  renameFile
 * @param string $oldName 原文件名
 * @param string $newName 新文件名
 * @return bool
 */
function renameFile($oldName ,$newName){
    //检测文件是否存在
    if(!file_exists($oldName)){
        return false;
    }
    //得到原文件路径
    $path=dirname($oldName);
    //重命名后的文件路径
    $newFilePath=$path.DIRECTORY_SEPARATOR.$newName;
    //检测是否有重名文件
    if(file_exists($newFilePath)){
        return false;
    }
    //重命名(注意是$newName 不是$newFilePath)
    if(rename($oldName,$newName)){
        return true;
    };
    return false;
}

The above is the entire article Content, I hope it will be helpful to everyone’s learning. For more related content, please pay attention to the PHP Chinese website!

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