標籤：php基礎教程 php檔案和目錄 學習總結 php檔案使用
一、寫入檔案：fwrite($fp,寫入內容);
fclose($fp);
二、鎖定檔案：當有多個使用者同時對檔案操作時保證不出現衝突
fclock($fp, 鎖定類型); //鎖定類型包括寫入獨享、讀取共用……
三、讀取檔案：
$data = file(‘檔案路徑‘);
將讀取的資料放到data數組內，每個元素為檔案的一行。
編碼測試：ws.php:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title><base> </head> <body> <?phpif (isset($_POST['submitted'])) {if (!empty($_POST['quote']) && ($_POST['quote'] != "enter your quotation here")){//Write the data to file.$fp = fopen('../test.txt','a+');flock($fp, LOCK_EX);// lock the filefwrite($fp, $_POST['quote']);flock($fp, LOCK_UN);// unlockfclose($fp);//read the file's content to an array $data:$data = file('../test.txt');print '<p style = "color: red;"> data[0]:\n ' .$data[0]. '</p>';}else{print 'please enter your quotation';}}?><form action='ws.php' method='POST'><textarea name="quote" rows="5" cols="30">enter your quotation here</textarea><input type="submit" name="submit" value="Add this code"/><input type="hidden" name="submitted" value="true"/></form><div><p>This is the foot of the document</p></div></body> </html>
起始：
結果：
五、處理檔案上傳：
1.form標籤必須包含：enctype="multipart/form-data"，表單必須用post方法
2.必須添加一個隱藏輸入框，建議瀏覽器最大上傳檔案大小（以位元組計）
3.建立表單欄位<input type="file" name="thefile" />
代碼測試：ws.php:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title><base> </head> <body> <?phpif (isset($_POST['submitted'])) {if (move_uploaded_file($_FILES['thefile']['tmp_name'],"../uploads/{$_FILES['thefile']['name']}")){print '<p>your file is upload!</P>';}else{$errors = $_FILES['thefile']['error'];print $errors;}}?><form action='ws.php' enctype="multipart/form-data" method='POST'><p>Upload a file</p><input type="hidden" name="MAX_FILE_SIZE" value="3000"/><p><input type="file" name="thefile" /></p><input type="submit" name="submit" value="UPload"/><input type="hidden" name="submitted" value="true"/></form><div><p>This is the foot of the document</p></div></body> </html>
1.導航目錄：
尋找目錄中所有內容：scandir();
eg: $stuff = scandir(‘目錄名‘);//函數返回一個數組，包含目錄中的檔案和目錄，複製給$stuff
2.建立目錄：
mkdir( ‘路徑名‘ );
《php基礎教程》——4檔案和目錄 學習總結
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