Question

我正在创建一些代码将生成一个配置类的新页面。我使用heredoc像bellow.So我想将$ _POST ['hostname'] varibles传递给heredoc.I尝试了很多但没有运气。可以帮我？

    if(isset($_POST['hostname'])){ 
        $HOSTNAME = $_POST['hostname']; 
        } 
    if(isset($_POST['database'])){
        $DATABASE = $_POST['database']; 
        } 
    if(isset($_POST['dbuser'])){ 
        $USER = $_POST['dbuser'];
        } 
    if(isset($_POST['dbuserpassword'])){
        $PASSWORD = $_POST['dbuserpassword'];
        } 


    $pardConfig = new PDO('mysql:host='.$HOSTNAME.';'.'dbname='.$DATABASE, $USER, $PASSWORD, array(
        PDO::ATTR_PERSISTENT => true
    ));

    if(isset($pardConfig)){
        echo "connected";

        } 



    $SQL =<<<'EOD'
    CREATE TABLE IF NOT EXISTS pard_host (
    host varchar(255) NOT NULL,
    db varchar(255),
    db_user varchar(255) NOT NULL,
    db_pass varchar(255)
    )
    EOD;

    $sq = $pardConfig->query($SQL);

    if ($sq) {
        echo 'created';
    }
    $stmt = $pardConfig->prepare("INSERT INTO pard_host (host, db, db_user, db_pass) VALUES (?, ?, ?, ?)");
    $stmt->bindParam(1, $HOSTNAME);
    $stmt->bindParam(2, $DATABASE);
    $stmt->bindParam(3, $USER);
    $stmt->bindParam(4, $PASSWORD);
    $stmt->execute();





    $PARD_CONFIGURATION_CLASS = <<<'EOT'

    class pardConfig{
        public $HOSTNAME = echo $DATABASE;;  
        public $DATABASE = echo $DATABASE;
        public $USER     = echo $USER;
        public $PASSWORD = echo $PASSWORD;

    }
    EOT;


    $PARD_FILE_OPEN = fopen("configuration.php", "w+");
    fwrite($PARD_FILE_OPEN,$PARD_CONFIGURATION_CLASS );

    ?>

Answer 1

删除heredoc标识符周围的引号。

$PARD_CONFIGURATION_CLASS = <<<EOT

如果保留引号，则称为nowdoc。这就是php文档的用法：

Nowdocs是单引号字符串，heredocs是双引号字符串。类似于heredoc指定了nowdoc，但是在nowdoc
中没有进行解析

http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.nowdoc

Answer 2

你的意思是：

$variable = "Test"; //Can be any variable; may be $_POST['name']
//Using '{' and '}' special characters in PHP strings.
$string = <<<HEREDOC
{$variable}
HEREDOC;

echo $string ;

如何在heredoc中传递$ _POST变量

2 个答案: