Question

我对此进行了广泛搜索，但有没有办法忽略像＆＃39; \ n＆＃39;使用fwrite并将其打印在文件中？

$x = "Some data with \nslash n";
fwrite($fp, $x."\r\n");

Gives me : 
Some data with
slash n

我知道使用单引号可以解决我的问题，但问题是$ x来自其他地方所以它的值已经设置好了。也许我错过了一些非常基本的东西。请帮忙

由于

Answer 1

如果您只转义换行符，请将PHP_EOL常量附加到字符串，直接放在您想要换行符的位置。例如：

$x = "Some data with".PHP_EOL."slash n";

Answer 2

我的答案很糟糕，但也许会有所帮助：

import UIKit

class RegisterPageViewController: UIViewController {



    @IBOutlet weak var userFullNameTextField: UITextField!

    @IBOutlet weak var userEmailTextField: UITextField!


    @IBOutlet weak var userPasswordTextField: UITextField!


    @IBOutlet weak var userRepeatPasswordTextField: UITextField!


    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }




    @IBAction func RegisterButtonTapped(sender: AnyObject) {

        let userFullName = userFullNameTextField.text
        let userEmail = userEmailTextField.text
        let userPassword = userPasswordTextField.text
        let userRepeatPassword = userRepeatPasswordTextField.text
    }

        // Check for empty fields


**//ERROR HERE EXPECTED DECLARATION**


        if (((userFullName.isEmpty || userEmail.isEmpty || userPassword.isEmpty || userRepeatPassword.isEmpty))

        {

            // Display alert message

            displayMyAlertMessage("All fields are required")



            return;

        }

        // Check if passwords match

        if(userPassword != userRepeatPassword)

        {
            // Display alert message


            displayMyAlertMessage("Passwords do not match")

            return;


        }



        func displayAlertMessage(userMessage:string)
        {

            var myAlert = UIAlertController(title:"Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.Alert);



        }






    }

        // Store Data

        // Display alert message with confirmation







    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */


}

Answer 3

诀窍是双引号和单引号

在str_replace中搜索时使用双引号，并在返回值时使用单引号

要将文件替换并下载到您的PC，请输入以下代码：

<?php
    $a = "My Name\n is Ashwani";
    $b = str_replace("\n",'\n',$a);
    header('Content-disposition: attachment; filename=output.txt');
    header('Content-type: text/plain');
    echo "This is the original data:\n".$a;
    echo "\n\n\nThis is the replaced data:\n".$b;
?>

要在服务器上使用输出和扩展名csv编写文件，请输入以下代码：

<?php
    $a = "My Name\n is Ashwani";
    $b = str_replace("\n",'\n',$a);
    $h = fopen("output.csv","w");
    fwrite($h,"This is the original data:\n".$a);
    fwrite($h,"\n\n\nThis is the replaced data:\n".$b);
    fclose($h);
?>

希望这有帮助

在fwrite

3 个答案: