PHP开发札记系列（四）-文件操作

file:file.phpurl:http://localhost:88/file/file.php<?php    $file = file(basename(__FILE__));    $lines = count($file);    for($i=0; $i<$lines; $i++){        $color = ($i%2==0) ? 'red' : 'white';        echo '<div style="background-color: '.$color.'">';        echo $i.':'.htmlspecialchars($file[$i]);        echo '</div>';    }?>

file:file_get_contents.phpurl:http://localhost:88/file/readfile.php<?php    $file = file_get_contents('file.html');          $file = strip_tags($file);       echo '<form><textarea rows=12 cols=80>'.htmlspecialchars($file).'</textarea></form>';?>

file:readfile.phpurl:http://localhost:88/file/readfile.php<?php    readfile('file.html');?>

file:fread.phpurl:http://localhost:88/file/fread.php<?php    $location = 'file.html';    $file = fopen($location, "rb");    $fileContent = fread($file, filesize($location));    fclose($file);    echo $fileContent;?>

file:fgets.phpurl:http://localhost:88/file/fgets.php<?php    $location = 'file.html';    $fp = fopen($location, 'rb');       while(!feof($fp)){        $chunk = fgets($fp);        echo $chunk;    }       fclose($fp);?>

file:readOnce_writeOnce.phpurl:http://localhost:88/file/readOnce_writeOnce.php<?php    $source = 'file.html';    $destination1 = 'readOnce_writeOnce.html';    // 一次读取，一次写入    $sourceContent = file_get_contents($source);    file_put_contents($destination1, $sourceContent);?>

file:multiRead_multiWrite.phpurl:http://localhost:88/file/multiRead_multiWrite.php<?php    $source = 'file.html';    $destination2 = 'multiRead_multiWrite.html';       $lines = file($source);    $fp = fopen($destination2, 'w');       foreach ($lines as $line) {        fwrite($fp, $line);    }       fclose($fp);?>

file:other.phpurl:http://localhost:88/file/other.php<?php    $fileName = basename(__FILE__);    $dirPath = './';       // file_exists()返回1 或 0    echo $fileName.': '.file_exists($fileName).'<br/>';       // is_file()返回1 或 0    echo $fileName.' is '.is_file($fileName)?'file':'directory'.'!'.'<br/>';       // is_readable()返回1 或 0    echo $fileName.' readable:'.is_readable($fileName).'<br/>';       // is_writable()返回1 或 0    echo $fileName.' writable:'.is_writable($fileName).'<br/>';       echo $fileName.' created at:'.filemtime($fileName).'<br/>';    echo $fileName.' created at:'.fileatime($fileName).'<br/>';    echo $fileName.' size:'.filesize($fileName).'<br/>';?> 

file:dir.phpurl:http://localhost:88/file/dir.php<?php    $location = './';        $dp = opendir($location);        while ($entry = readdir($dp)){        if(is_dir($entry))        {            echo '[DIR] '.$entry. '<br/>';        }elseif (is_file($entry))        {            echo '[FILE] '.$entry. '<br/>';        }    }    closedir($dp);?>

file:dir-class.phpurl:http://localhost:88/file/dir-class.php<?php    $location = './';        $dir = dir($location);         while ($entry = $dir->read()){        if(is_dir($entry))        {            echo '[DIR] '.$entry. '<br/>';        }elseif (is_file($entry))        {            echo '[FILE] '.$entry. '<br/>';        }    }    closedir($dp);?>

file:copy.phpurl:http://localhost:88/file/copy.php<?php    $source = 'file.html';    $dest = 'file-copy.html';    copy($source, $dest);?>

<?php    $source = 'file-copy.html';    $dest = 'file-copy-1.html';    rename($source, $dest);?>