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PHP學習筆記之php文件操作,
Home Backend Development PHP Tutorial PHP study notes: php file operation, _PHP tutorial

PHP study notes: php file operation, _PHP tutorial

Jul 12, 2016 am 08:51 AM
php operate document

PHP學習筆記之php文件操作,

一、fstat函數(shù):顯示文件的所有信息

$file_path = "test.php";
if($fp=fopen($file_path,"a+")){
  $file_info=fstat($fp);
  echo "<pre class="brush:php;toolbar:false">";
  print_r($file_info);
  echo "
"; echo "文件大小為".$file_info['size']; echo "文件上次訪問時間".date("Y-m-d H:i:s",$file_info['mtime']); } fclose($fp); //一定要關閉

  二、文件讀?。?/span>

//第一種:
$con = fread($fp,filesize($file_path));
$con = str_replace("\r\n","<br>",$con);
echo "文件內容是".$con;
//第二種:將文件一下全部讀取
$con = file_get_contents($file_path);
$con = str_replace("\r\n","<br>",$con);
echo "文件內容是".$con;
//第三種:一段一段讀取
$buffer = 1024; 
//為了下載的安全,最好使用文件字節(jié)讀取計數(shù)器
$file_count = 0;
//feof用于判斷文件是否讀取到文檔尾
while(!feof($fp) && ($file_size-$file_count>0)){
$file_data = fread($fp,$buffer);
//統(tǒng)計讀了多少個字節(jié)
$file_count+$buffer;
echo $file_data;  
} 

  三、寫入文件:

 //1、傳統(tǒng)方法寫入文件
  $file_path = "test.txt";
  if(file_exists($file_path)){
    $fp = fopen($file_path,"a+");
    //打開方式:a+是追加內容。w+是覆蓋原來的。
    $con = "Hello!\r\n";
    fwrite($fp,$con);
    echo "添加成功!";
  }else{
    echo "文件不存在";
  }
  fclose($fp);
  //2、第二種方法寫入文件
  $file_path= "test.txt";
  $con = "北京你好!\r\n";
  file_put_contents($file_path,$con,FILE_APPEND);
  echo "成功"; 

  四、文件操作的應用:

//可以操作ini文件。將服務器的配置寫在ini文件中,再對其進行操作。
  dbc.ini
  host=192.168.0.1
  admin=admin
  password=123456  
demo.php
  <&#63;php
    $con = parse_ini_file("dbc.ini");
    print_r($con);  
    &#63;> 
//將ini文件中的數(shù)據(jù)以數(shù)組形式讀出,可以對其進行操作。 

  五、拷貝文件:

if(!copy("E:\\test.txt","D:\\1.txt")){
  echo "fail";
}else{
  echo "success";
} 

  六、創(chuàng)建文件

  創(chuàng)建文件夾:

//$path = "E:\\happy"; //文件夾路徑
$path = "E:\\happy\aaa\bbb"; //多級文件夾
if(!is_dir($path)){
  if(mkdir($path,0777,true)){
    echo "success";
  }else{
    echo "fail";
  }
}else{
  echo "文件夾已存在";
} 

  創(chuàng)建文件:

$file_path = "E:\\happy.txt";
$fp = fopen($file_path,"w+");
fwrite($fp,"hello");
fclose($fp); 

  七、刪除文件:

  刪除文件夾:

$path = "E:\\happy\aaa\bbb"; //多級文件夾
if(rmdir($path)){
  echo "success";
}
//rmdir只能刪除空文件夾,文件夾下有文件或目錄均不能刪除。 

刪除文件:

$file_path = "E:\\happy.txt";
if(is_file($file_path)){
  if(unlink($file_path)){
    echo "success";
  }else{
    echo "fail";
  }
}else{
  echo "文件不存在";
}

以上所述是小編給大家介紹的php文件操作的相關知識,希望對大家有所幫助。

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/1133023.htmlTechArticlePHP學習筆記之php文件操作, 一、fstat函數(shù):顯示文件的所有信息 $file_path = "test.php";if($fp=fopen($file_path,"a+")){ $file_info=fstat($fp); echo "pre"; prin...
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