PHP File Class

1. Requirements

Learn about PHP's actions on files

2. Example

Write a class that can manipulate files, including add, delete, check

<?PHPclassmyfile{ Public functionWrite_file ($string,$path,$mode= ' W+b ')    {        if(!$fp[Email protected]fopen($path,$mode))        {            Echo"Unable to write to file"; Exit(); }        if(Flock($fp,lock_ex)) {             for($written=0,$length=strlen($string);$written<$length;$written+=$result)            {                if(($result=fwrite($fp,substr($string,$written)))===false)                {                     Break; }            }            Flock($fp,Lock_un); }        Else        {            Echo"Unable to get file lock"; Exit(); }        fclose($fp); return true; }     Public functionRead_file ($path)    {        if(!$fp[Email protected]fopen($path, ' R+b '))        {            Echo"Could not open file"; Exit(); }        if(Flock($fp,lock_sh)) {            if(!$content=fread($fp,filesize($path)))            {                Echo"Unable to read file"; Exit(); }        }        Else        {            Echo"Unable to get file lock"; Exit(); }        fclose($fp); return $content; }     Public functionDelete_file ($path)    {        if(!file_exists($path))        {            Echo"File does not exist"; return false; }        @unlink($path); return true; }}$config=Array(  ' String ' = ' abcdeaisdiiee ', ' path ' = =MD5(Microtime()).‘. Php);$obj=Newmyfile ();$obj->write_file (' Sufi ', ' due '. php ', ' a+b ');

Reference Document: http://www.php.net/manual/zh/function.fwrite.php

PHP File Class