MySQL查詢適用於Phpmyadmin，但通過PHP應用時不適用？

Question

我想通過PHP將觸發器應用於現有的表和列。 執行PHP代碼時，不會引發錯誤，但不會創建觸發器。

我的PHP代碼：

//file: migrations.php 

// created_at column already defined in a previous migration 
//... 

$migrations[3]['message'] = "added created_at, updated_at columns on rate table"; 
$migrations[3]['created'] = "2015-09-05 08:28:00"; 
$migrations[3]['sql']  = " 
DELIMITER | 
CREATE TRIGGER rate_created_at BEFORE INSERT ON rate 
FOR EACH ROW 
    BEGIN 
     SET NEW.created_at = CURRENT_TIMESTAMP; 
    END | 
    DELIMITER ; 
"; 

// apply migration 
foreach ($migrations as $key => $value) { 
    // run the migration SQL for the current iteration 
    $sth = $dbh->prepare($value['sql']); 
    $sth->execute(); 
} 

繼承人什麼做工作

• 複製和粘貼觸發創建SQL到phpMyAdmin的
• 擺脫DELIMITER和BEGINEND聲明 的例如如果我減少SQL到

$migrations[3]['sql']  = " 
CREATE TRIGGER rate_created_at BEFORE INSERT ON rate 
FOR EACH ROW 
     SET NEW.created_at = CURRENT_TIMESTAMP; 
"; 

它從PHP運行，問題是我不相信我可以運行多行語句，而不DELIMITER和BEGINEND。
我試圖

• 逃避使用不同的分隔符

分隔符

我能做些什麼來讓PHP運行與DELIMITER和BEGINEND語句在SQL？

Answer 1

是的，你將不得不擺脫那些DELIMITER的，只是有下面的代碼

$migrations[3]['sql'] = " 
CREATE TRIGGER rate_created_at BEFORE INSERT ON rate 
FOR EACH ROW 
    BEGIN 
     SET NEW.created_at = CURRENT_TIMESTAMP; 
    END;"; 

看到這個另一篇文章中說同樣的事情PHP: multiple SQL queries in one mysql_query statement