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我正在嘗試使腳本將我的編碼從utf8mb4更改爲utf8。將utf8mb4更改爲utf8
我的PHP knowlege有點過時,我不能讓腳本與mysqli一起工作。
這是基本的腳本我有:
<?php
$con = mysql_connect('localhost','user','password');
if(!$con) { echo "Cannot connect to the database ";die();}
mysql_select_db('dbname');
$result=mysql_query('show tables');
while($tables = mysql_fetch_array($result)) {
foreach ($tables as $key => $value) {
mysql_query("ALTER TABLE $value CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci");
}}
echo "The collation of your database has been successfully changed!";
?>
這是行不通的,所以我嘗試更新它的mysqli,現在我有這個:
<?php
$mysqli = new mysqli("localhost", "root", "", "test");
if (mysqli_connect_errno()) {
printf("connexion error : %s\n", mysqli_connect_error());
exit();
}
if ($result = $mysqli->query("SELECT DATABASE()")) {
$row = $result->fetch_row();
printf("The database is : %s.\n", $row[0]);
$result->close();
}
$result=mysqli_query('show tables');
while($tables = mysqli_fetch_array($result)) {
foreach ($tables as $key => $value) {
mysqli_query("ALTER TABLE $value CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci");
}}
echo "The collation of your database has been successfully changed!";
?>
我認爲這個問題是在最後一部分,我得到的錯誤是:
比k你的幫助! :)
mysqli_query()需要第一個參數作爲您的連接。用它作爲'$ result = mysqli_query($ mysqli,'show tables'); '閱讀http://php.net/manual/en/mysqli.query.php – Saty
我試過這個,但現在我得到50次同樣的錯誤:'mysqli_query()期望至少有2個參數,1給出' – Relisora
你有沒有在foreach循環查詢裏面改變? – Saty