Replace the text with javascript

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.

Do you only want to replace 'a' by 'A' and 'b' by 'B', or just make the textarea text all uppercase? Do you want to modify the textarea text when focus leaves the textarea? — TNi
– TNi, Commented May 14, 2011 at 0:07
Are you asking to convert the functionality of the above code from PHP to Javascript? — Steve Kehlet
– Steve Kehlet, Commented May 14, 2011 at 0:16

AjayR · Accepted Answer · 2011-05-14 00:43:04Z

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>

answered May 14, 2011 at 0:43

AjayR

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2 Comments

Mel Over a year ago

IIRC Convert() needs to return false or you won't see the result.

sorn Over a year ago

Now I can do then. Thank you all comments.

Gamlor · Accepted Answer · 2011-05-16 09:24:49Z

0

Now I can do then.

Thank you all comments.

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

<script>
function Convert()
{

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

    var replace = {
        '1' : "\u0e45",
        '2' : "\u002F",
    };
    for(var i in replace)
    {
        var regex = new RegExp(i,'g');
        p =  p.replace(regex,replace[i]);
    }
    document.getElementById ("post2").value= p;
    return false;
}
</script>
<textarea readonly="true" cols="100" rows="3" name="post2" id="post2" >
</textarea>

edited May 16, 2011 at 9:24

Gamlor

13.3k7 gold badges46 silver badges72 bronze badges

answered May 16, 2011 at 8:34

sorn

295 bronze badges

1 Comment

Gamlor Over a year ago

Add 4 spaces or a tab to each line of code, then you get code highlighting

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