Dfyjkt

I have bad characters like È™ that needs to be replaced. I have 99% of the code prepared but there's one thing I'm missing ... I don't know how to convert content from textarea, and then replace it with the good characters

to be more precise the below script works for displaying the text, what I need is to replace that text with the good version

// define variables and set to empty values
$comment = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") 
 if (empty($_POST["comment"])) 
 $comment = "";
 else 
 $comment = test_input($_POST["comment"]);
 


function test_input($data) 
 $data = trim($data);
 $data = stripslashes($data);
 $data = htmlspecialchars($data);
 return $data;


 <h2>PHP Form Validation Example</h2>
<p><span class="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
 <textarea class="comment" id="comment" name="comment" rows="5" cols="40"><?php echo $comment;?></textarea>
 <br><br>
 <input type="submit" name="submit" value="Submit">
</form>


echo "<h2>Your Input:</h2>";


$ToReplace = array("ă", "î", "È›", "ÅŸ", "Å£", "È™", "â", "ÃŽ", "î", "Î", "â", "ÇŽ", "“", "”", "Ã", "�");
$Replacement = array("a", "i", "t", "s", "t", "s", "a", "i", "i", "I", "a", "a", "'", "'", "a", "a");
$convert = str_replace($ToReplace, $Replacement, $comment);

echo $convert;

If I did understood your question what you are aiming for is to replace the text inside the textarea. If that's the case is simply a matter of ouputing your $convert variable inside the textarea.

As by your example this works:

// define variables and set to empty values
$comment = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") 
 if (empty($_POST["comment"])) 
 $comment = "";
 else 
 $comment = test_input($_POST["comment"]);
 



$ToReplace = array("ă", "î", "È›", "ÅŸ", "Å£", "È™", "â", "ÃŽ", "î", "Î", "â", "ÇŽ", "“", "”", "Ã", "�");
$Replacement = array("a", "i", "t", "s", "t", "s", "a", "i", "i", "I", "a", "a", "'", "'", "a", "a");
$convert = str_replace($ToReplace, $Replacement, $comment);



function test_input($data) 
 $data = trim($data);
 $data = stripslashes($data);
 $data = htmlspecialchars($data);
 return $data;


 <h2>PHP Form Validation Example</h2>
<p><span class="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
 <textarea class="comment" id="comment" name="comment" rows="5" cols="40"><?php echo $convert;?></textarea>
 <br><br>
 <input type="submit" name="submit" value="Submit">
</form>


echo "<h2>Your Input:</h2>";
echo $convert;