PHP study notes: php file operation, _PHP tutorial
Jul 12, 2016 am 08:51 AM
PHP學(xué)習(xí)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(guān)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(nèi)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(nèi)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(nèi)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(yīng)用：
//可以操作ini文件。將服務(wù)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
<?php
$con = parse_ini_file("dbc.ini");
print_r($con);
?>
//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(guān)知識，希望對大家有所幫助。
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