本文实例讲述了php检测mysql表是否存在的方法。分享给大家供大家参考,具体如下:
pdo:
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<?php
$dsn = 'mysql:dbname=test;host=127.0.0.1' ;
$user = 'root' ;
$password = '' ;
try {
$pdo = new PDO( $dsn , $user , $password );
} catch (PDOException $e ) {
die ( "数据库连接失败" . $e ->getMessage());
}
$table = 'cy_news' ;
//判断表是否存在
$result = $pdo ->query( "SHOW TABLES LIKE '" . $table . "'" );
$row = $result ->fetchAll();
if ( '1' == count ( $row )){
echo "Table exists" ;
} else {
echo "Table does not exist" ;
}
?>
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mysql:
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<?php
$con = mysql_connect( "localhost" , "root" , "" );
mysql_select_db( "php_cms" , $con );
$table = 'cy_news' ;
if (mysql_num_rows(mysql_query( "SHOW TABLES LIKE '" . $table . "'" ))==1) {
echo "Table exists" ;
} else {
echo "Table does not exist" ;
}
?>
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希望本文所述对大家PHP程序设计有所帮助。