How to edit selected file in a dropdown list in textarea and then save it?

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I have a script like this, let's call this page select.php:

<?php
........
echo '
<form action="editor.php" method="post">
<select name="file">
  <option value="volvo">Volvo.txt</option>
  <option value="saab">Saab.txt</option>
  <option value="mercedes">Mercedes.txt</option>
  <option value="audi">Audi.txt</option>
</select>
<input type="submit" name="edit" value="Edit" />
</form>';
.........
?>

And I want to edit the selected file in another page called editor.php and then save it, how do I pass the value of the selected file to editor.php and then edit it in a textarea?


You can use PHP Open File - fopen().

 <form action="editor.php" method="post">
<select name="file">
  <option value="volvo">Volvo.txt</option>
  <option value="saab">Saab.txt</option>
  <option value="mercedes">Mercedes.txt</option>
  <option value="audi">Audi.txt</option>
</select>
<textarea></textarea>
<input type="submit" name="edit" value="Edit" />
</form>


 if(isset($_POST["edit"])) {
   $filename = $_POST["file"];
   $myfile = fopen("$filename", "r") or die("Unable to open file!");
   $filecontent =  fread($myfile,filesize("$filename"));
   fclose($myfile);
 }

<textarea>if(isset($filecontent)) { echo $filecontent; }</textarea> //echos file content in textarea.

 //write to text file
 if(isset($_POST["update"])) {
   $myfile = fopen("$files", "w") or die("Unable to open file!");
   fwrite($myfile, $_POST["textareaContent"]);
   fclose($myfile);
 }

Javascript HTML element get selected select option text value , I have a script like this, let's call this page select.php:<?php..echo '<form action="editor.php" method="post"><select name="file"> <option� To attach a file or files to the list item, in the New item window, select Add attachments, and then select the file. Hold down the CTRL key when selecting files to attach more than one file. Select Open, and then select OK. If the Add attachments command is unavailable, your list doesn't support attachments.


First, to make things simpler, I'll change your form so that it passes the actual file names instead of just a short version of it:

<form action="editor.php" method="post">
<select name="file">
  <option value="Volvo.txt">Volvo.txt</option>
  <option value="Saab.txt">Saab.txt</option>
  <option value="Mercedes.txt">Mercedes.txt</option>
  <option value="Audi.txt">Audi.txt</option>
</select>
<input type="submit" name="edit" value="Edit" />
</form>

Next, editor.php

Please note: Use a white list here! That's what $allowed_files is. You don't want a user to be able to edit any file on your system they want. Never trust user input! (Although really, this entire idea makes me really uncomfortable in general from security standpoint. I hope this isn't a publicly accessible script.)

<?php
$allowed_files = ["Volvo.txt","Saab.txt","Mercedes.txt","Audi.txt"];
if(!empty($_POST)){
    if(in_array($_POST["file"], $allowed_files)){
        $file_contents = file_get_contents($_POST["file"]);
    }
}

if($file_contents !== false){
    echo '
        <form method="post" action="save_file.php">
        <input type="hidden" name="file" value="' . $_POST["file"] . '">
        <textarea name="file_contents">$file_contents</textarea>
        <input type="submit" value="Save file">
        </form>
    ';
}else{
    echo 'File could not be opened.';
}

Then you just have to figure out how to handle save_file.php This would receive the file name in $_POST["file"] (which you absolutely 100% positively need to validate against your whitelist again!), and it would receive the file contents in $_POST["file_contents"].

Good luck!

Forms and Form Fields :: Eloquent JavaScript, html 5 and javascript tutorial on get selected text from the select option element dropdownlist Duration: 5:06 Posted: Apr 16, 2018 We can select text or we can also find the position of a text in a drop down list using option:selected attribute or by using val() method in jQuery. By using val() method : The val() method is an inbuilt method in jQuery which is used to return or set the value of attributes for the selected elements.


Try this for passing the value to the texteditor (editor.php)...

if(isset($_POST['edit']))
{
    echo "<textarea>".$_POST['file']."</textarea>";
}

This results only the file name without extension, if you want to include the extension, you need to add .txt to the value of each <option>.

How to get selected text from a drop-down list using jQuery , Multiline text fields have their own tag, <textarea> , mostly because using an attribute Whenever the value of a form field changes, it fires a "change" event. For example, a <select> menu tries to move to the option that contains the text the user than a non- multiple select field, which is commonly drawn as a drop- down� How to select a value in dropdown using the value of textbox How to fill the dropdown data select the checkbox using javascript how to set the value in textbox on the Selected value of DropDown using Jquery.


Forms in HTML documents, of a text in a drop down list using option:selected attribute or by using After click on the button. a way in jQuery which is used to return the selected element from a list of the How to change the color of selected text using CSS ? How to get file input by selected file name without path using jQuery ? I am going to show you example of how to store multiple select values in laravel. i explained simply about how to store multiple select values in database using laravel. i explained simply about laravel store multiple select dropdown list values. we will help you to give example of how to save multiple select box value in laravel.


However, the initial value of a TEXTAREA element is given by its contents, and the A form may contain more than one submit button. reset buttons: When activated, The INPUT element is used to create a file select control. hidden controls as a list box; they may use any other mechanism, such as a drop-down menu. HTML provides is a tag used to create Dropdown list. Also note that if a user is allowed to select multiple files, the return value is a tuple that contains all of the selected files. 3: if you leave a listbox and goes to another, then the abandoned listbox create not a ListboxSelect Event behavior in py 3.


The change event occurs when the value of an element has been changed (only works on <input>, <textarea> and <select> elements). The change() method triggers the change event, or attaches a function to run when a change event occurs. Note: For select menus, the change event occurs when an option is selected. For text fields or text areas, the