search
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!

Related recommendations:

Explanation of PHP empty() function

ob_start usage analysis in PHP

Preprocessing of mysqli in PHP prepare

The above is the detailed content of php file create cut copy commonly used functions. For more information, please follow other related articles on the PHP Chinese website!

Statement
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
Optimize PHP Code: Reducing Memory Usage & Execution TimeOptimize PHP Code: Reducing Memory Usage & Execution TimeMay 10, 2025 am 12:04 AM

TooptimizePHPcodeforreducedmemoryusageandexecutiontime,followthesesteps:1)Usereferencesinsteadofcopyinglargedatastructurestoreducememoryconsumption.2)LeveragePHP'sbuilt-infunctionslikearray_mapforfasterexecution.3)Implementcachingmechanisms,suchasAPC

PHP Email: Step-by-Step Sending GuidePHP Email: Step-by-Step Sending GuideMay 09, 2025 am 12:14 AM

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

How to Send Email via PHP: Examples & CodeHow to Send Email via PHP: Examples & CodeMay 09, 2025 am 12:13 AM

The best way to send emails is to use the PHPMailer library. 1) Using the mail() function is simple but unreliable, which may cause emails to enter spam or cannot be delivered. 2) PHPMailer provides better control and reliability, and supports HTML mail, attachments and SMTP authentication. 3) Make sure SMTP settings are configured correctly and encryption (such as STARTTLS or SSL/TLS) is used to enhance security. 4) For large amounts of emails, consider using a mail queue system to optimize performance.

Advanced PHP Email: Custom Headers & FeaturesAdvanced PHP Email: Custom Headers & FeaturesMay 09, 2025 am 12:13 AM

CustomheadersandadvancedfeaturesinPHPemailenhancefunctionalityandreliability.1)Customheadersaddmetadatafortrackingandcategorization.2)HTMLemailsallowformattingandinteractivity.3)AttachmentscanbesentusinglibrarieslikePHPMailer.4)SMTPauthenticationimpr

Guide to Sending Emails with PHP & SMTPGuide to Sending Emails with PHP & SMTPMay 09, 2025 am 12:06 AM

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

What is the best way to send an email using PHP?What is the best way to send an email using PHP?May 08, 2025 am 12:21 AM

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

Best Practices for Dependency Injection in PHPBest Practices for Dependency Injection in PHPMay 08, 2025 am 12:21 AM

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHP performance tuning tips and tricksPHP performance tuning tips and tricksMay 08, 2025 am 12:20 AM

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools