Hướng dẫn download và cài đặt python trên Window (Win 7 / Win 10) - Python căn bản
Trong bài này mình sẽ hướng dẫn các bạn cách tải Python cho Win7 / Win 10, sau khi tải về bạn có thể bắt đầu cài đặt Python trên Win 7 / Win 10 để học series Python này. Python là một ngôn ngữ lập trình được ra đời khoảng năm 1990, ngôn ngữ này dùng cơ chế tạo kiểu động và cấp phát bộ nhớ tự ...
Hàm Remove all file in folder trong PHP - PHP Function
function removeAllFile($dir){ if (is_dir($dir)) { $structure = glob(rtrim($dir, "/").'/*'); if (is_array($structure)) { foreach($structure as $file) { if (is_dir($file)) recursiveRemove($file); else if (is_file($file)) ...
Hàm mysql_affected_rows() trong PHP - PHP Function
Code $link = mysql_connect('localhost', 'mysql_user', 'mysql_password'); if (!$link) { die('Could not connect: ' . mysql_error()); } mysql_select_db('mydb'); /* this should return the correct numbers of deleted records */ mysql_query('DELETE FROM mytable WHERE id ...
Hàm mysqli_connect() trong PHP - PHP Function
Code $link = mysqli_connect('localhost', 'root', '', 'lmgo'); if (!$link) { die('Connect Error (' . mysqli_connect_errno() . ') ' . mysqli_connect_error()); } echo 'Success... ' . mysqli_get_host_info($link) . " "; mysqli_close($link);;
Hàm mysql_close() trong PHP - PHP Function
Code $link = @mysql_connect('localhost', 'mysql_user', 'mysql_password'); if (!$link) { die('Could not connect: ' . mysql_error()); } echo 'Connected successfully'; mysql_close($link);
Hàm mysql_connect() trong PHP - PHP Function
Code $link = @mysql_connect('localhost', 'roor', ''); if (!$link) { die('Could not connect: ' . mysql_error()); } echo 'Connected successfully'; mysql_close($link);
Hàm mysqli_affected_rows() trong PHP - PHP Function
Code //trước khi chạy code, bạn phải tạo csdl lmgo với bảng chuyenmuc $con=mysqli_connect("localhost","root","","lmgo"); if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } // thực hiện câu truy vấn mysqli_query($con,"SELECT * FROM ...
Hàm mysqli_change_user() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","root","","lmgo"); if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } // Reset all and select a new database mysqli_change_user($con, "my_user", "my_password", "my_test"); mysqli_close($con);
Hàm mysqli_connect_errno() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","abcd","wrong_pass","lmgo"); die("Connection error: " . mysqli_connect_errno());
Hàm mysqli_connect_error() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","abcd","wrong_pass","lmgo"); echo "Connection error: " . mysqli_connect_errno() . "<br />"; echo "Connection error: " . mysqli_connect_error();
Hàm mysqli_errno() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","root","","lmgo"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } // Perform a query, check for error if (!mysqli_query($con,"INSERT INTO wrong_table (FirstName) VALUES ...
Hàm mysqli_error_list() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","root","","lmgo"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } // Perform a query, check for error if (!mysqli_query($con,"INSERT INTO wrong_table (FirstName) VALUES ...
Hàm mysqli_error() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","root","","lmgo"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } // Perform a query, check for error if (!mysqli_query($con,"INSERT INTO Persons (FirstName) VALUES ...
Hàm mysqli_fetch_all() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; $result=mysqli_query($con,$sql); ...
Hàm mysqli_fetch_array() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; $result=mysqli_query($con,$sql); ...
Hàm mysqli_fetch_assoc() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; $result=mysqli_query($con,$sql); ...
Hàm mysqli_fetch_field() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; if ($result=mysqli_query($con,$s ...
Hàm mysqli_fetch_fields() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; if ($result=mysqli_query($con,$sq ...
Hàm mysqli_fetch_lengths() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT * FROM Persons ORDER BY Lastname"; if ($result=mysqli_query($con,$sql)){ $row ...
Hàm mysqli_fetch_object() trong PHP - PHP Function
Code $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection if (mysqli_connect_errno()){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname"; if ($result=mysqli_query($con,$sq ...
