我學習PHP的& mysql.I我試圖表明我的表,我按照書上所寫的完全一樣的代碼,我使用:如何在MySQL中顯示錶?
<?php
$con = mysqli_connect("localhost","root","")
or die("<p>Error connecting to database: ".mysqli_error()."</p>");
echo "<p>Connected to MySQL!</p>";
$con = mysqli_select_db($con,"register")
or die("<p>Error selecting the database register: ".mysqli_error()." </p>");
echo "<p>Connected to MySQL, using database register.</p>";
$result = mysqli_query("SHOW TABLES;");
?>
,但我不斷收到此錯誤:
"Warning: mysqli_query() expects at least 2 parameters, 1 given in C:\xampp\htdocs\SCRIPT\connect.php on line 12"
您必須通過$ CON作爲第二參數去mysqli_query如果沒有記錯我好 – samayo
試試這個,$結果= mysqli_query($ CON,「SHOW TABLES 「); –
你應該從手冊開始:http://php.net/manual/en/mysqli.query.php – jeroen