Question

From this code.

<form method="get">
    <div align="center"><textarea name="post" ></textarea></div>
    <div align="center"><input type="submit" value="Submit"></div>
</form>

<?
$aaa = $post;
$new_aaa=str_replace(array(
'a', 
'b'
), array(
'A',
'B'
), $aaa);
?>

<textarea readonly="true" cols="100" rows="3" name="post" >
    <? echo $new_aaa; ?>
</textarea>
</div>

If we write in the form of javascript to do here?
If you do not understand, it is to get value from textarea and then use the str_replace function as a type, but the output is A, help me write a little PHP I own one, but never wrote JS.

Sorry for bad English, I’ve used Google Translate.

Answer 1

<form method="get" onSubmit='Convert()'>
    <div align="center"><textarea name="post" id="post" ></textarea></div>
    <div align="center"><input type="submit" value="Submit"></div>
</form>

…….. In script

<script>
function Convert()
{
  var p = document.getElementById ("post").value;
 p =  p.replace(/a/g,”A”);
 p =  p.replace(/b/g,”B”);

document.getElementById ("post").value= p;

}
</script>